Bump to 4.3.1

Hope it's not too late for the update :)

app/build.gradle

@@ -8,8 +8,8 @@ android {
         applicationId "com.topjohnwu.magisk"
         minSdkVersion 21
         targetSdkVersion 25
-        versionCode 20
+        versionCode 28
-        versionName "4.0"
+        versionName "4.3.1"
         jackOptions {
             enabled true
             jackInProcess true
@@ -47,15 +47,14 @@ repositories {
 dependencies {
     compile fileTree(include: ['*.jar'], dir: 'libs')
 
-    compile 'com.android.support:recyclerview-v7:25.1.1'
+    compile 'com.android.support:recyclerview-v7:25.3.1'
-    compile 'com.android.support:cardview-v7:25.1.1'
+    compile 'com.android.support:cardview-v7:25.3.1'
-    compile 'com.android.support:design:25.1.1'
+    compile 'com.android.support:design:25.3.1'
-    compile 'com.android.support:support-v4:25.1.1'
+    compile 'com.android.support:support-v4:25.3.1'
-    compile 'com.android.support:support-v13:25.1.1'
     compile 'com.jakewharton:butterknife:8.5.1'
-    compile 'com.google.code.gson:gson:2.8.0'
     compile 'com.github.clans:fab:1.6.4'
     compile 'com.thoughtbot:expandablerecyclerview:1.4'
+    compile 'us.feras.mdv:markdownview:1.1.0'
     compile 'com.madgag.spongycastle:core:1.54.0.0'
     compile 'com.madgag.spongycastle:prov:1.54.0.0'
     compile 'com.madgag.spongycastle:pkix:1.54.0.0'

app/proguard-rules.pro

@@ -16,27 +16,6 @@
 #   public *;
 #}
 
-# Gson uses generic type information stored in a class file when working with fields. Proguard
-# removes such information by default, so configure it to keep all of it.
--keepattributes Signature
-
-# For using GSON @Expose annotation
--keepattributes *Annotation*
-
-# Gson specific classes
--keep class sun.misc.Unsafe { *; }
--keep class com.google.gson.** { *; }
-
-# Application classes that will be serialized/deserialized over Gson
--keep class com.topjohnwu.magisk.module.** { *; }
--keep class com.topjohnwu.magisk.module.ModuleHelper$ValueSortedMap { *; }
-
-# Prevent proguard from stripping interface information from TypeAdapterFactory,
-# JsonSerializer, JsonDeserializer instances (so they can be used in @JsonAdapter)
--keep class * implements com.google.gson.TypeAdapterFactory
--keep class * implements com.google.gson.JsonSerializer
--keep class * implements com.google.gson.JsonDeserializer
-
 -keep class android.support.v7.internal.** { *; }
 -keep interface android.support.v7.internal.** { *; }
 -keep class android.support.v7.** { *; }

app/src/main/AndroidManifest.xml

@@ -8,8 +8,10 @@
     <uses-permission android:name="android.permission.INTERNET" />
     <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
     <uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
+    <uses-permission android:name="android.permission.VIBRATE" />
 
     <application
+        android:name=".MagiskManager"
         android:allowBackup="true"
         android:icon="@mipmap/ic_launcher"
         android:label="@string/app_name"
@@ -59,6 +61,13 @@
             </intent-filter>
         </receiver>
 
+        <service android:name=".services.BootupIntentService" />
+
+        <service
+            android:name=".services.UpdateCheckService"
+            android:permission="android.permission.BIND_JOB_SERVICE"
+            android:exported="true" />
+
         <provider
             android:name="android.support.v4.content.FileProvider"
             android:authorities="com.topjohnwu.magisk.provider"

app/src/main/assets/magisk_uninstaller.sh

@@ -1,21 +1,20 @@
-#!/system/bin/sh
-
 [ -z $BOOTMODE ] && BOOTMODE=false
-TMPDIR=/tmp
-($BOOTMODE) && TMPDIR=/dev/tmp
 
-BINDIR=/data/magisk
+# This path should work in any cases
-CHROMEDIR=$BINDIR/chromeos
+TMPDIR=/dev/tmp
 
-NEWBOOT=$TMPDIR/boottmp/new-boot.img
+BOOTTMP=$TMPDIR/boottmp
-UNPACKDIR=$TMPDIR/boottmp/bootunpack
+MAGISKBIN=/data/magisk
-RAMDISK=$TMPDIR/boottmp/ramdisk
+CHROMEDIR=$MAGISKBIN/chromeos
 
 SYSTEMLIB=/system/lib
 [ -d /system/lib64 ] && SYSTEMLIB=/system/lib64
 
-ui_print() {
+# Default permissions
-  echo "$1"
+umask 022
+
+ui_print_wrapper() {
+  type ui_print >/dev/null && ui_print "$1" || echo "$1"
 }
 
 grep_prop() {
@@ -25,7 +24,7 @@ grep_prop() {
   if [ -z "$FILES" ]; then
     FILES='/system/build.prop'
   fi
-  cat $FILES 2>/dev/null | sed -n $REGEX | head -n 1
+  cat $FILES 2>/dev/null | sed -n "$REGEX" | head -n 1
 }
 
 find_boot_image() {
@@ -42,109 +41,93 @@ find_boot_image() {
   fi
 }
 
-unpack_boot() {
+# Environments
-  rm -rf $UNPACKDIR $RAMDISK 2>/dev/null
-  mkdir -p $UNPACKDIR
-  mkdir -p $RAMDISK
-  cd $UNPACKDIR
-  LD_LIBRARY_PATH=$SYSTEMLIB $BINDIR/bootimgtools --extract $1
-
-  cd $RAMDISK
-  $BINDIR/busybox gunzip -c < $UNPACKDIR/ramdisk.gz | cpio -i
-}
-
-repack_boot() {
-  cd $RAMDISK
-  find . | cpio -o -H newc 2>/dev/null | gzip -9 > $UNPACKDIR/ramdisk.gz
-  cd $UNPACKDIR
-  LD_LIBRARY_PATH=$SYSTEMLIB $BINDIR/bootimgtools --repack $BOOTIMAGE
-  if [ -f chromeos ]; then
-    echo " " > config
-    echo " " > bootloader
-    LD_LIBRARY_PATH=$SYSTEMLIB $CHROMEDIR/futility vbutil_kernel --pack new-boot.img.signed --keyblock $CHROMEDIR/kernel.keyblock --signprivate $CHROMEDIR/kernel_data_key.vbprivk --version 1 --vmlinuz new-boot.img --config config --arch arm --bootloader bootloader --flags 0x1
-    rm -f new-boot.img
-    mv new-boot.img.signed new-boot.img
-  fi
-  if ($SAMSUNG); then
-    SAMSUNG_CHECK=$(cat new-boot.img | grep SEANDROIDENFORCE)
-    if [ $? -ne 0 ]; then
-      echo -n "SEANDROIDENFORCE" >> new-boot.img
-    fi
-  fi
-  if ($LGE_G); then
-    # Prevent secure boot error on LG G2/G3.
-    # Just for know, It's a pattern which bootloader verifies at boot. Thanks to LG hackers.
-    echo -n -e "\x41\xa9\xe4\x67\x74\x4d\x1d\x1b\xa4\x29\xf2\xec\xea\x65\x52\x79" >> new-boot.img
-  fi
-  mv new-boot.img $NEWBOOT
-}
-
 # Set permissions
-chmod -R 755 $CHROMEDIR/futility $BINDIR
+chmod -R 755 $CHROMEDIR/futility $MAGISKBIN 2>/dev/null
+# Temporary busybox for installation
+mkdir -p $TMPDIR/busybox
+$MAGISKBIN/busybox --install -s $TMPDIR/busybox
+rm -f $TMPDIR/busybox/su $TMPDIR/busybox/sh $TMPDIR/busybox/reboot
+PATH=$TMPDIR/busybox:$PATH
 
 # Find the boot image
 find_boot_image
 if [ -z "$BOOTIMAGE" ]; then
-  ui_print "! Unable to detect boot image"
+  ui_print_wrapper "! Unable to detect boot image"
   exit 1
 fi
 
-ui_print "- Found Boot Image: $BOOTIMAGE"
+ui_print_wrapper "- Found Boot Image: $BOOTIMAGE"
 
-# Detect special vendors 
+rm -rf $BOOTTMP 2>/dev/null
-SAMSUNG=false
+mkdir -p $BOOTTMP
-SAMSUNG_CHECK=$(cat /system/build.prop | grep "ro.build.fingerprint=" | grep -i "samsung")
+cd $BOOTTMP
-if [ $? -eq 0 ]; then
+
-  SAMSUNG=true
+ui_print_wrapper "- Unpacking boot image"
-fi
+LD_LIBRARY_PATH=$SYSTEMLIB $MAGISKBIN/magiskboot --unpack $BOOTIMAGE
-LGE_G=false
+if [ $? -ne 0 ]; then
-RBRAND=$(grep_prop ro.product.brand)
+  ui_print_wrapper "! Unable to unpack boot image"
-RMODEL=$(grep_prop ro.product.device)
+  exit 1
-if [ "$RBRAND" = "lge" ] || [ "$RBRAND" = "LGE" ];  then 
-  if [ "$RMODEL" = "*D80*" ] || 
-     [ "$RMODEL" = "*S98*" ] || 
-     [ "$RMODEL" = "*D85*" ] ||
-     [ "$RMODEL" = "*F40*" ]; then
-    LGE_G=true
-    ui_print "! Bump device detected"
-  fi
 fi
 
-# First unpack the boot image
+# Update our previous backup to new format if exists
-unpack_boot $BOOTIMAGE
+if [ -f /data/stock_boot.img ]; then
+  SHA1=`LD_LIBRARY_PATH=$SYSTEMLIB $MAGISKBIN/magiskboot --sha1 /data/stock_boot.img | tail -n 1`
+  STOCKDUMP=/data/stock_boot_${SHA1}.img
+  mv /data/stock_boot.img $STOCKDUMP
+  LD_LIBRARY_PATH=$SYSTEMLIB $MAGISKBIN/magiskboot --compress $STOCKDUMP
+fi
 
-SUPERSU=false
+# Detect boot image state
-[ -f sbin/launch_daemonsu.sh ] && SUPERSU=true
+LD_LIBRARY_PATH=$SYSTEMLIB $MAGISKBIN/magiskboot --cpio-test ramdisk.cpio
-
+case $? in
-if ($SUPERSU); then
+  0 )
-  ui_print "- SuperSU patched image detected"
+    ui_print_wrapper "! Magisk is not installed!"
-  rm -f magisk sbin/init.magisk.rc sbin/magic_mask.sh
+    ui_print_wrapper "! Nothing to uninstall"
-  repack_boot
+    exit
-else
+    ;;
-  if [ -f /data/stock_boot.img ]; then
+  1 )
-    ui_print "- Boot image backup found!"
+    # Find SHA1 of stock boot image
-    NEWBOOT=/data/stock_boot.img
+    if [ -z $SHA1 ]; then
-  else
+      LD_LIBRARY_PATH=$SYSTEMLIB $MAGISKBIN/magiskboot --cpio-extract ramdisk.cpio init.magisk.rc init.magisk.rc
-    ui_print "! Boot image backup unavailable"
+      SHA1=`grep_prop "# STOCKSHA1" init.magisk.rc`
-    if [ -d ".backup" ]; then
+      [ ! -z $SHA1 ] && STOCKDUMP=/data/stock_boot_${SHA1}.img
-      ui_print "- Restoring ramdisk with backup"
+      rm -f init.magisk.rc
-      cp -af .backup/. .
     fi
-    rm -f magisk sbin/init.magisk.rc sbin/magic_mask.sh
+    if [ -f ${STOCKDUMP}.gz ]; then
-    repack_boot
+      ui_print_wrapper "- Boot image backup found!"
-  fi
+      LD_LIBRARY_PATH=$SYSTEMLIB $MAGISKBIN/magiskboot --decompress ${STOCKDUMP}.gz stock_boot.img
+    else
+      ui_print_wrapper "! Boot image backup unavailable"
+      ui_print_wrapper "- Restoring ramdisk with backup"
+      LD_LIBRARY_PATH=$SYSTEMLIB $MAGISKBIN/magiskboot --cpio-restore ramdisk.cpio
+      LD_LIBRARY_PATH=$SYSTEMLIB $MAGISKBIN/magiskboot --repack $BOOTIMAGE stock_boot.img
+    fi
+    ;;
+  2 )
+    ui_print_wrapper "- SuperSU patched image detected"
+    LD_LIBRARY_PATH=$SYSTEMLIB $MAGISKBIN/magiskboot --cpio-restore ramdisk.cpio
+    LD_LIBRARY_PATH=$SYSTEMLIB $MAGISKBIN/magiskboot --repack $BOOTIMAGE stock_boot.img
+    ;;
+esac
+
+# Sign chromeos boot
+if [ -f chromeos ]; then
+  echo > config
+  echo > bootloader
+  LD_LIBRARY_PATH=$SYSTEMLIB $CHROMEDIR/futility vbutil_kernel --pack stock_boot.img.signed --keyblock $CHROMEDIR/kernel.keyblock --signprivate $CHROMEDIR/kernel_data_key.vbprivk --version 1 --vmlinuz stock_boot.img --config config --arch arm --bootloader bootloader --flags 0x1
+  rm -f stock_boot.img
+  mv stock_boot.img.signed stock_boot.img
 fi
 
-chmod 644 $NEWBOOT
+ui_print_wrapper "- Flashing stock/reverted image"
-
-ui_print "- Flashing stock/reverted image"
 [ ! -L "$BOOTIMAGE" ] && dd if=/dev/zero of=$BOOTIMAGE bs=4096 2>/dev/null
-dd if=$NEWBOOT of=$BOOTIMAGE bs=4096
+dd if=stock_boot.img of=$BOOTIMAGE bs=4096
 
-ui_print "- Removing Magisk files"
+ui_print_wrapper "- Removing Magisk files"
 rm -rf  /cache/magisk.log /cache/last_magisk.log /cache/magiskhide.log /cache/.disable_magisk \
         /cache/magisk /cache/magisk_merge /cache/magisk_mount  /cache/unblock /cache/magisk_uninstaller.sh \
         /data/Magisk.apk /data/magisk.apk /data/magisk.img /data/magisk_merge.img \
         /data/busybox /data/magisk /data/custom_ramdisk_patch.sh 2>/dev/null
 
-($BOOTMODE) && reboot
+$BOOTMODE && reboot

app/src/main/java/com/topjohnwu/magisk/AboutActivity.java

@@ -1,13 +1,12 @@
 package com.topjohnwu.magisk;
 
-import android.app.AlertDialog;
 import android.content.Intent;
 import android.net.Uri;
 import android.os.Bundle;
 import android.preference.PreferenceManager;
 import android.support.annotation.Nullable;
 import android.support.v7.app.ActionBar;
-import android.support.v7.app.AppCompatActivity;
+import android.support.v7.app.AlertDialog;
 import android.support.v7.widget.Toolbar;
 import android.text.Html;
 import android.text.Spanned;
@@ -17,8 +16,10 @@ import android.view.View;
 import android.view.WindowManager;
 import android.widget.TextView;
 
+import com.topjohnwu.magisk.components.AboutCardRow;
+import com.topjohnwu.magisk.components.Activity;
+import com.topjohnwu.magisk.components.AlertDialogBuilder;
 import com.topjohnwu.magisk.utils.Logger;
-import com.topjohnwu.magisk.utils.Utils;
 
 import java.io.IOException;
 import java.io.InputStream;
@@ -26,7 +27,7 @@ import java.io.InputStream;
 import butterknife.BindView;
 import butterknife.ButterKnife;
 
-public class AboutActivity extends AppCompatActivity {
+public class AboutActivity extends Activity {
 
     private static final String DONATION_URL = "http://topjohnwu.github.io/donate";
     private static final String XDA_THREAD = "http://forum.xda-developers.com/showthread.php?t=3432382";
@@ -46,8 +47,8 @@ public class AboutActivity extends AppCompatActivity {
         super.onCreate(savedInstanceState);
         String theme = PreferenceManager.getDefaultSharedPreferences(getApplicationContext()).getString("theme", "");
         Logger.dev("AboutActivity: Theme is " + theme);
-        if (Global.Configs.isDarkTheme) {
+        if (getApplicationContext().isDarkTheme) {
-            setTheme(R.style.AppTheme_dh);
+            setTheme(R.style.AppTheme_Dark);
         }
         setContentView(R.layout.activity_about);
         ButterKnife.bind(this);
@@ -85,7 +86,7 @@ public class AboutActivity extends AppCompatActivity {
                 result = Html.fromHtml(changes);
             }
             appChangelog.setOnClickListener(v -> {
-                AlertDialog d = Utils.getAlertDialogBuilder(this)
+                AlertDialog d = new AlertDialogBuilder(this)
                         .setTitle(R.string.app_changelog)
                         .setMessage(result)
                         .setPositiveButton(android.R.string.ok, null)
@@ -104,7 +105,7 @@ public class AboutActivity extends AppCompatActivity {
             } else {
                 result = Html.fromHtml(getString(R.string.app_developers_));
             }
-            AlertDialog d = Utils.getAlertDialogBuilder(this)
+            AlertDialog d = new AlertDialogBuilder(this)
                     .setTitle(R.string.app_developers)
                     .setMessage(result)
                     .setPositiveButton(android.R.string.ok, null)

app/src/main/java/com/topjohnwu/magisk/Global.java

@@ -1,133 +0,0 @@
-package com.topjohnwu.magisk;
-
-import android.content.Context;
-import android.content.SharedPreferences;
-import android.content.pm.ApplicationInfo;
-import android.preference.PreferenceManager;
-import android.util.SparseArray;
-
-import com.topjohnwu.magisk.module.Module;
-import com.topjohnwu.magisk.module.Repo;
-import com.topjohnwu.magisk.utils.CallbackHandler;
-import com.topjohnwu.magisk.utils.Shell;
-import com.topjohnwu.magisk.utils.Utils;
-import com.topjohnwu.magisk.utils.ValueSortedMap;
-
-import java.io.File;
-import java.util.List;
-
-public class Global {
-
-    public static final String MAGISK_DISABLE_FILE = "/cache/.disable_magisk";
-
-    public static class Info {
-        public static double magiskVersion;
-        public static String magiskVersionString = "(none)";
-        public static double remoteMagiskVersion = -1;
-        public static String magiskLink;
-        public static String releaseNoteLink;
-        public static int SNCheckResult = -1;
-        public static String bootBlock = null;
-        public static boolean isSuClient = false;
-        public static String suVersion = null;
-        public static boolean disabled = false;
-    }
-    public static class Data {
-        public static ValueSortedMap<String, Repo> repoMap;
-        public static ValueSortedMap<String, Module> moduleMap;
-        public static List<String> blockList;
-        public static List<ApplicationInfo> appList;
-        public static List<String> magiskHideList;
-    }
-    public static class Events {
-        public static final CallbackHandler.Event blockDetectionDone = new CallbackHandler.Event();
-        public static final CallbackHandler.Event packageLoadDone = new CallbackHandler.Event();
-        public static final CallbackHandler.Event reloadMainActivity = new CallbackHandler.Event();
-        public static final CallbackHandler.Event moduleLoadDone = new CallbackHandler.Event();
-        public static final CallbackHandler.Event repoLoadDone = new CallbackHandler.Event();
-        public static final CallbackHandler.Event updateCheckDone = new CallbackHandler.Event();
-        public static final CallbackHandler.Event safetyNetDone = new CallbackHandler.Event();
-        public static SparseArray<CallbackHandler.Event> uidMap = new SparseArray<>();
-    }
-    public static class Configs {
-        public static boolean isDarkTheme;
-        public static boolean shellLogging;
-        public static boolean devLogging;
-        public static boolean magiskHide;
-        public static int suRequestTimeout;
-        public static int suLogTimeout = 14;
-        public static int suAccessState;
-        public static int suResponseType;
-        public static int suNotificationType;
-    }
-    
-    public static void init(Context context) {
-        SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);
-        Configs.isDarkTheme = prefs.getBoolean("dark_theme", false);
-        Configs.devLogging = prefs.getBoolean("developer_logging", false);
-        Configs.shellLogging = prefs.getBoolean("shell_logging", false);
-        Configs.magiskHide = prefs.getBoolean("magiskhide", false);
-        updateMagiskInfo();
-        initSuAccess();
-        initSuConfigs(context);
-        // Initialize prefs
-        prefs.edit()
-                .putBoolean("dark_theme", Configs.isDarkTheme)
-                .putBoolean("magiskhide", Configs.magiskHide)
-                .putBoolean("busybox", Utils.commandExists("busybox"))
-                .putBoolean("hosts", new File("/magisk/.core/hosts").exists())
-                .putBoolean("disable", Utils.itemExist(MAGISK_DISABLE_FILE))
-                .putString("su_request_timeout", String.valueOf(Configs.suRequestTimeout))
-                .putString("su_auto_response", String.valueOf(Configs.suResponseType))
-                .putString("su_notification", String.valueOf(Configs.suNotificationType))
-                .putString("su_access", String.valueOf(Configs.suAccessState))
-                .apply();
-    }
-
-    public static void initSuConfigs(Context context) {
-        SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);
-        Configs.suRequestTimeout = Utils.getPrefsInt(prefs, "su_request_timeout", 10);
-        Configs.suResponseType = Utils.getPrefsInt(prefs, "su_auto_response", 0);
-        Configs.suNotificationType = Utils.getPrefsInt(prefs, "su_notification", 1);
-    }
-
-    public static void initSuAccess() {
-        List<String> ret = Shell.sh("su -v");
-        if (Utils.isValidShellResponse(ret)) {
-            Info.suVersion = ret.get(0);
-            Info.isSuClient = Info.suVersion.toUpperCase().contains("MAGISK");
-        }
-        if (Info.isSuClient) {
-            ret = Shell.sh("getprop persist.sys.root_access");
-            if (Utils.isValidShellResponse(ret))
-                Configs.suAccessState = Integer.parseInt(ret.get(0));
-            else {
-                Shell.su(true, "setprop persist.sys.root_access 3");
-                Configs.suAccessState = 3;
-            }
-        }
-    }
-
-    public static void updateMagiskInfo() {
-        List<String> ret = Shell.sh("getprop magisk.version");
-        if (!Utils.isValidShellResponse(ret)) {
-            Info.magiskVersion = -1;
-        } else {
-            try {
-                Info.magiskVersionString = ret.get(0);
-                Info.magiskVersion = Double.parseDouble(ret.get(0));
-            } catch (NumberFormatException e) {
-                // Custom version don't need to receive updates
-                Info.magiskVersion = Double.POSITIVE_INFINITY;
-            }
-        }
-        ret = Shell.sh("getprop ro.magisk.disable");
-        try {
-            Info.disabled = Utils.isValidShellResponse(ret) && Integer.parseInt(ret.get(0)) != 0;
-        } catch (NumberFormatException e) {
-            Info.disabled = false;
-        }
-        
-    }
-
-}

app/src/main/java/com/topjohnwu/magisk/LogFragment.java

@@ -3,13 +3,13 @@ package com.topjohnwu.magisk;
 
 import android.os.Bundle;
 import android.support.design.widget.TabLayout;
-import android.support.v4.app.Fragment;
 import android.support.v4.view.ViewPager;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
 
 import com.topjohnwu.magisk.adapters.TabFragmentAdapter;
+import com.topjohnwu.magisk.components.Fragment;
 
 import butterknife.BindView;
 import butterknife.ButterKnife;
@@ -33,7 +33,7 @@ public class LogFragment extends Fragment {
 
         adapter.addTab(new MagiskLogFragment(), getString(R.string.magisk));
 
-        if (Global.Info.isSuClient) {
+        if (getApplication().isSuClient) {
             adapter.addTab(new SuLogFragment(), getString(R.string.superuser));
             tab.setupWithViewPager(viewPager);
             tab.setVisibility(View.VISIBLE);

app/src/main/java/com/topjohnwu/magisk/MagiskHideFragment.java

@@ -3,7 +3,6 @@ package com.topjohnwu.magisk;
 import android.content.pm.PackageManager;
 import android.os.Bundle;
 import android.support.annotation.Nullable;
-import android.support.v4.app.Fragment;
 import android.support.v4.view.MenuItemCompat;
 import android.support.v4.widget.SwipeRefreshLayout;
 import android.support.v7.widget.RecyclerView;
@@ -16,15 +15,16 @@ import android.view.ViewGroup;
 import android.widget.SearchView;
 
 import com.topjohnwu.magisk.adapters.ApplicationAdapter;
-import com.topjohnwu.magisk.utils.Async;
+import com.topjohnwu.magisk.asyncs.MagiskHide;
-import com.topjohnwu.magisk.utils.CallbackHandler;
+import com.topjohnwu.magisk.components.Fragment;
+import com.topjohnwu.magisk.utils.CallbackEvent;
 import com.topjohnwu.magisk.utils.Logger;
 
 import butterknife.BindView;
 import butterknife.ButterKnife;
 import butterknife.Unbinder;
 
-public class MagiskHideFragment extends Fragment implements CallbackHandler.EventListener {
+public class MagiskHideFragment extends Fragment implements CallbackEvent.Listener<Void> {
 
     private Unbinder unbinder;
     @BindView(R.id.swipeRefreshLayout) SwipeRefreshLayout mSwipeRefreshLayout;
@@ -50,7 +50,7 @@ public class MagiskHideFragment extends Fragment implements CallbackHandler.Even
         PackageManager packageManager = getActivity().getPackageManager();
 
         mSwipeRefreshLayout.setRefreshing(true);
-        mSwipeRefreshLayout.setOnRefreshListener(() -> new Async.LoadApps(packageManager).exec());
+        mSwipeRefreshLayout.setOnRefreshListener(() -> new MagiskHide(getActivity()).list());
 
         appAdapter = new ApplicationAdapter(packageManager);
         recyclerView.setAdapter(appAdapter);
@@ -71,6 +71,10 @@ public class MagiskHideFragment extends Fragment implements CallbackHandler.Even
             }
         };
 
+        if (getApplication().magiskHideDone.isTriggered) {
+            onTrigger(getApplication().magiskHideDone);
+        }
+
         return view;
     }
 
@@ -85,15 +89,12 @@ public class MagiskHideFragment extends Fragment implements CallbackHandler.Even
     public void onStart() {
         super.onStart();
         getActivity().setTitle(R.string.magiskhide);
-        CallbackHandler.register(Global.Events.packageLoadDone, this);
+        getApplication().magiskHideDone.register(this);
-        if (Global.Events.packageLoadDone.isTriggered) {
-            onTrigger(Global.Events.packageLoadDone);
-        }
     }
 
     @Override
     public void onStop() {
-        CallbackHandler.unRegister(Global.Events.packageLoadDone, this);
+        getApplication().magiskHideDone.unRegister(this);
         super.onStop();
     }
 
@@ -104,9 +105,9 @@ public class MagiskHideFragment extends Fragment implements CallbackHandler.Even
     }
 
     @Override
-    public void onTrigger(CallbackHandler.Event event) {
+    public void onTrigger(CallbackEvent<Void> event) {
         Logger.dev("MagiskHideFragment: UI refresh");
-        appAdapter.setLists(Global.Data.appList, Global.Data.magiskHideList);
+        appAdapter.setLists(getApplication().appList, getApplication().magiskHideList);
         mSwipeRefreshLayout.setRefreshing(false);
         if (!TextUtils.isEmpty(lastFilter)) {
             appAdapter.filter(lastFilter);

app/src/main/java/com/topjohnwu/magisk/MagiskLogFragment.java

@@ -11,7 +11,6 @@ import android.support.annotation.NonNull;
 import android.support.annotation.Nullable;
 import android.support.design.widget.Snackbar;
 import android.support.v4.app.ActivityCompat;
-import android.support.v4.app.Fragment;
 import android.text.TextUtils;
 import android.view.LayoutInflater;
 import android.view.Menu;
@@ -25,7 +24,9 @@ import android.widget.ScrollView;
 import android.widget.TextView;
 import android.widget.Toast;
 
-import com.topjohnwu.magisk.utils.Async;
+import com.topjohnwu.magisk.asyncs.SerialTask;
+import com.topjohnwu.magisk.components.Fragment;
+import com.topjohnwu.magisk.components.SnackbarMaker;
 import com.topjohnwu.magisk.utils.Shell;
 import com.topjohnwu.magisk.utils.Utils;
 
@@ -121,12 +122,12 @@ public class MagiskLogFragment extends Fragment {
                     new Handler().postDelayed(() -> onOptionsItemSelected(mClickedMenuItem), 500);
                 }
             } else {
-                Snackbar.make(txtLog, R.string.permissionNotGranted, Snackbar.LENGTH_LONG).show();
+                SnackbarMaker.make(txtLog, R.string.permissionNotGranted, Snackbar.LENGTH_LONG).show();
             }
         }
     }
 
-    public class LogManager extends Async.RootTask<Object, Void, Object> {
+    public class LogManager extends SerialTask<Object, Void, Object> {
 
         int mode;
         File targetFile;
@@ -150,7 +151,7 @@ public class MagiskLogFragment extends Fragment {
 
                 case 1:
                     Shell.su("echo > " + MAGISK_LOG);
-                    Snackbar.make(txtLog, R.string.logs_cleared, Snackbar.LENGTH_SHORT).show();
+                    SnackbarMaker.make(txtLog, R.string.logs_cleared, Snackbar.LENGTH_SHORT).show();
                     return "";
 
                 case 2:
@@ -161,8 +162,9 @@ public class MagiskLogFragment extends Fragment {
                         return false;
                     }
 
-                    if (!Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED))
+                    if (!Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)) {
                         return false;
+                    }
 
                     Calendar now = Calendar.getInstance();
                     String filename = String.format(
@@ -174,8 +176,9 @@ public class MagiskLogFragment extends Fragment {
                     targetFile = new File(Environment.getExternalStorageDirectory().getAbsolutePath() + "/MagiskManager/" + filename);
 
                     if ((!targetFile.getParentFile().exists() && !targetFile.getParentFile().mkdirs())
-                            || (targetFile.exists() && !targetFile.delete()))
+                            || (targetFile.exists() && !targetFile.delete())) {
                         return false;
+                    }
 
                     List<String> in = Utils.readFile(MAGISK_LOG);
 
@@ -213,10 +216,11 @@ public class MagiskLogFragment extends Fragment {
                     break;
                 case 2:
                     bool = (boolean) o;
-                    if (bool)
+                    if (bool) {
                         Toast.makeText(getActivity(), targetFile.toString(), Toast.LENGTH_LONG).show();
-                    else
+                    } else {
                         Toast.makeText(getActivity(), getString(R.string.logs_save_failed), Toast.LENGTH_LONG).show();
+                    }
                     break;
             }
         }

app/src/main/java/com/topjohnwu/magisk/MagiskManager.java

@@ -0,0 +1,179 @@
+package com.topjohnwu.magisk;
+
+import android.app.Application;
+import android.content.SharedPreferences;
+import android.content.pm.ApplicationInfo;
+import android.os.Handler;
+import android.preference.PreferenceManager;
+import android.util.SparseArray;
+import android.widget.Toast;
+
+import com.topjohnwu.magisk.module.Module;
+import com.topjohnwu.magisk.module.Repo;
+import com.topjohnwu.magisk.superuser.Policy;
+import com.topjohnwu.magisk.utils.CallbackEvent;
+import com.topjohnwu.magisk.utils.Shell;
+import com.topjohnwu.magisk.utils.Utils;
+import com.topjohnwu.magisk.utils.ValueSortedMap;
+
+import java.io.File;
+import java.util.List;
+
+public class MagiskManager extends Application {
+
+    public static final String MAGISK_DISABLE_FILE = "/cache/.disable_magisk";
+    public static final String MAGISK_HIDE_PATH = "/magisk/.core/magiskhide/";
+    public static final String TMP_FOLDER_PATH = "/dev/tmp";
+    public static final String MAGISK_PATH = "/magisk";
+    public static final String INTENT_SECTION = "section";
+
+    // Events
+    public final CallbackEvent<Void> blockDetectionDone = new CallbackEvent<>();
+    public final CallbackEvent<Void> magiskHideDone = new CallbackEvent<>();
+    public final CallbackEvent<Void> reloadMainActivity = new CallbackEvent<>();
+    public final CallbackEvent<Void> moduleLoadDone = new CallbackEvent<>();
+    public final CallbackEvent<Void> repoLoadDone = new CallbackEvent<>();
+    public final CallbackEvent<Void> updateCheckDone = new CallbackEvent<>();
+    public final CallbackEvent<Void> safetyNetDone = new CallbackEvent<>();
+    public final SparseArray<CallbackEvent<Policy>> uidSuRequest = new SparseArray<>();
+
+    // Info
+    public double magiskVersion;
+    public String magiskVersionString;
+    public double remoteMagiskVersion = -1;
+    public String magiskLink;
+    public String releaseNoteLink;
+    public int SNCheckResult = -1;
+    public String bootBlock = null;
+    public boolean isSuClient = false;
+    public String suVersion = null;
+    public boolean disabled;
+    public boolean magiskHideStarted;
+
+    // Data
+    public ValueSortedMap<String, Repo> repoMap;
+    public ValueSortedMap<String, Module> moduleMap;
+    public List<String> blockList;
+    public List<ApplicationInfo> appList;
+    public List<String> magiskHideList;
+
+    // Configurations
+    public static boolean shellLogging;
+    public static boolean devLogging;
+
+    public boolean magiskHide;
+    public boolean isDarkTheme;
+    public boolean updateNotification;
+    public boolean busybox;
+    public int suRequestTimeout;
+    public int suLogTimeout = 14;
+    public int suAccessState;
+    public int suResponseType;
+    public int suNotificationType;
+
+    public SharedPreferences prefs;
+
+    private static Handler mHandler = new Handler();
+
+    @Override
+    public void onCreate() {
+        super.onCreate();
+        prefs = PreferenceManager.getDefaultSharedPreferences(this);
+    }
+
+    public void toast(String msg, int duration) {
+        mHandler.post(() -> Toast.makeText(this, msg, duration).show());
+    }
+
+    public void toast(int resId, int duration) {
+        mHandler.post(() -> Toast.makeText(this, resId, duration).show());
+    }
+
+    public void init() {
+        isDarkTheme = prefs.getBoolean("dark_theme", false);
+        devLogging = prefs.getBoolean("developer_logging", false);
+        shellLogging = prefs.getBoolean("shell_logging", false);
+        magiskHide = prefs.getBoolean("magiskhide", false);
+        updateNotification = prefs.getBoolean("notification", true);
+        // Always start a new root shell manually, just for safety
+        Shell.init();
+        updateMagiskInfo();
+        initSuAccess();
+        initSuConfigs();
+        // Initialize prefs
+        prefs.edit()
+                .putBoolean("dark_theme", isDarkTheme)
+                .putBoolean("magiskhide", magiskHide)
+                .putBoolean("notification", updateNotification)
+                .putBoolean("busybox", busybox)
+                .putBoolean("hosts", new File("/magisk/.core/hosts").exists())
+                .putBoolean("disable", Utils.itemExist(MAGISK_DISABLE_FILE))
+                .putString("su_request_timeout", String.valueOf(suRequestTimeout))
+                .putString("su_auto_response", String.valueOf(suResponseType))
+                .putString("su_notification", String.valueOf(suNotificationType))
+                .putString("su_access", String.valueOf(suAccessState))
+                .apply();
+    }
+
+    public void initSuConfigs() {
+        suRequestTimeout = Utils.getPrefsInt(prefs, "su_request_timeout", 10);
+        suResponseType = Utils.getPrefsInt(prefs, "su_auto_response", 0);
+        suNotificationType = Utils.getPrefsInt(prefs, "su_notification", 1);
+    }
+
+    public void initSuAccess() {
+        List<String> ret = Shell.sh("su -v");
+        if (Utils.isValidShellResponse(ret)) {
+            suVersion = ret.get(0);
+            isSuClient = suVersion.toUpperCase().contains("MAGISK");
+        }
+        if (isSuClient) {
+            ret = Shell.sh("getprop persist.sys.root_access");
+            if (Utils.isValidShellResponse(ret)) {
+                suAccessState = Integer.parseInt(ret.get(0));
+            } else {
+                Shell.su(true, "setprop persist.sys.root_access 3");
+                suAccessState = 3;
+            }
+        }
+    }
+
+    public void updateMagiskInfo() {
+        List<String> ret = Shell.sh("getprop magisk.version");
+        if (!Utils.isValidShellResponse(ret)) {
+            magiskVersion = -1;
+        } else {
+            try {
+                magiskVersionString = ret.get(0);
+                magiskVersion = Double.parseDouble(ret.get(0));
+            } catch (NumberFormatException e) {
+                // Custom version don't need to receive updates
+                magiskVersion = Double.POSITIVE_INFINITY;
+            }
+        }
+        ret = Shell.sh("getprop persist.magisk.busybox");
+        try {
+            busybox = Utils.isValidShellResponse(ret) && Integer.parseInt(ret.get(0)) != 0;
+        } catch (NumberFormatException e) {
+            busybox = false;
+        }
+        ret = Shell.sh("getprop ro.magisk.disable");
+        try {
+            disabled = Utils.isValidShellResponse(ret) && Integer.parseInt(ret.get(0)) != 0;
+        } catch (NumberFormatException e) {
+            disabled = false;
+        }
+        ret = Shell.sh("getprop persist.magisk.hide");
+        try {
+            magiskHideStarted = Utils.isValidShellResponse(ret) && Integer.parseInt(ret.get(0)) != 0;
+        } catch (NumberFormatException e) {
+            magiskHideStarted = false;
+        }
+
+        if (magiskHideStarted) {
+            magiskHide = true;
+        }
+        
+    }
+
+}

app/src/main/java/com/topjohnwu/magisk/MainActivity.java

@@ -7,7 +7,6 @@ import android.content.pm.PackageManager;
 import android.os.Build;
 import android.os.Bundle;
 import android.os.Handler;
-import android.preference.PreferenceManager;
 import android.support.annotation.NonNull;
 import android.support.design.widget.NavigationView;
 import android.support.v4.app.ActivityCompat;
@@ -15,23 +14,24 @@ import android.support.v4.app.Fragment;
 import android.support.v4.app.FragmentTransaction;
 import android.support.v4.widget.DrawerLayout;
 import android.support.v7.app.ActionBarDrawerToggle;
-import android.support.v7.app.AppCompatActivity;
 import android.support.v7.widget.Toolbar;
 import android.view.Menu;
 import android.view.MenuItem;
 import android.view.View;
 
-import com.topjohnwu.magisk.utils.CallbackHandler;
+import com.topjohnwu.magisk.components.Activity;
+import com.topjohnwu.magisk.utils.CallbackEvent;
 import com.topjohnwu.magisk.utils.Shell;
 
 import butterknife.BindView;
 import butterknife.ButterKnife;
 
-public class MainActivity extends AppCompatActivity
+public class MainActivity extends Activity
-        implements NavigationView.OnNavigationItemSelectedListener, CallbackHandler.EventListener {
+        implements NavigationView.OnNavigationItemSelectedListener, CallbackEvent.Listener<Void> {
 
     private final Handler mDrawerHandler = new Handler();
     private SharedPreferences prefs;
+    private int mDrawerItem;
 
     @BindView(R.id.toolbar) Toolbar toolbar;
     @BindView(R.id.drawer_layout) DrawerLayout drawer;
@@ -42,10 +42,10 @@ public class MainActivity extends AppCompatActivity
     @Override
     protected void onCreate(final Bundle savedInstanceState) {
 
-        prefs = PreferenceManager.getDefaultSharedPreferences(getApplicationContext());
+        prefs = getApplicationContext().prefs;
 
-        if (Global.Configs.isDarkTheme) {
+        if (getApplicationContext().isDarkTheme) {
-            setTheme(R.style.AppTheme_dh);
+            setTheme(R.style.AppTheme_Dark);
         }
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_main);
@@ -76,31 +76,37 @@ public class MainActivity extends AppCompatActivity
         drawer.addDrawerListener(toggle);
         toggle.syncState();
 
-        navigate(R.id.status);
+        if (savedInstanceState == null)
+            navigate(getIntent().getStringExtra(MagiskManager.INTENT_SECTION));
 
         navigationView.setNavigationItemSelectedListener(this);
-        CallbackHandler.register(Global.Events.reloadMainActivity, this);
+        getApplicationContext().reloadMainActivity.register(this);
+        getApplicationContext().updateCheckDone.register(this);
 
     }
 
     @Override
     protected void onResume() {
         super.onResume();
-        CallbackHandler.register(Global.Events.updateCheckDone, this);
-        if (Global.Events.updateCheckDone.isTriggered)
-            onTrigger(Global.Events.updateCheckDone);
         checkHideSection();
     }
 
     @Override
-    protected void onPause() {
+    protected void onRestoreInstanceState(Bundle savedInstanceState) {
-        CallbackHandler.unRegister(Global.Events.updateCheckDone, this);
+        super.onRestoreInstanceState(savedInstanceState);
-        super.onPause();
+        navigate(savedInstanceState.getInt(MagiskManager.INTENT_SECTION, R.id.status));
+    }
+
+    @Override
+    protected void onSaveInstanceState(Bundle outState) {
+        super.onSaveInstanceState(outState);
+        outState.putInt(MagiskManager.INTENT_SECTION, mDrawerItem);
     }
 
     @Override
     protected void onDestroy() {
-        CallbackHandler.unRegister(Global.Events.reloadMainActivity, this);
+        getApplicationContext().reloadMainActivity.unRegister(this);
+        getApplicationContext().updateCheckDone.unRegister(this);
         super.onDestroy();
     }
 
@@ -121,29 +127,69 @@ public class MainActivity extends AppCompatActivity
     }
 
     @Override
-    public void onTrigger(CallbackHandler.Event event) {
+    public void onTrigger(CallbackEvent<Void> event) {
-        if (event == Global.Events.updateCheckDone) {
+        if (event == getApplicationContext().reloadMainActivity) {
-            Menu menu = navigationView.getMenu();
-            menu.findItem(R.id.install).setVisible(Global.Info.remoteMagiskVersion > 0 &&
-                    Shell.rootAccess());
-        } else if (event == Global.Events.reloadMainActivity) {
             recreate();
+        } else if (event == getApplicationContext().updateCheckDone) {
+            checkHideSection();
         }
     }
 
     private void checkHideSection() {
         Menu menu = navigationView.getMenu();
-        if (Shell.rootAccess()) {
+        menu.findItem(R.id.magiskhide).setVisible(
-            menu.findItem(R.id.magiskhide).setVisible(
+                Shell.rootAccess() && getApplicationContext().magiskVersion >= 8
-                    Global.Info.magiskVersion >= 8 && prefs.getBoolean("magiskhide", false));
+                        && prefs.getBoolean("magiskhide", false));
-            menu.findItem(R.id.modules).setVisible(Global.Info.magiskVersion >= 4);
+        menu.findItem(R.id.modules).setVisible(
-            menu.findItem(R.id.downloads).setVisible(Global.Info.magiskVersion >= 4);
+                Shell.rootAccess() && getApplicationContext().magiskVersion >= 4);
-            menu.findItem(R.id.log).setVisible(true);
+        menu.findItem(R.id.downloads).setVisible(
-            menu.findItem(R.id.superuser).setVisible(Global.Info.isSuClient);
+                Shell.rootAccess() && getApplicationContext().magiskVersion >= 4);
+        menu.findItem(R.id.log).setVisible(Shell.rootAccess());
+        menu.findItem(R.id.superuser).setVisible(
+                Shell.rootAccess() && getApplicationContext().isSuClient);
+        menu.findItem(R.id.install).setVisible(getApplicationContext().remoteMagiskVersion > 0);
+    }
+
+    public void navigate(String item) {
+        int itemId = R.id.status;
+        if (item != null) {
+            switch (item) {
+                case "status":
+                    itemId = R.id.status;
+                    break;
+                case "install":
+                    itemId = R.id.install;
+                    break;
+                case "superuser":
+                    itemId = R.id.superuser;
+                    break;
+                case "modules":
+                    itemId = R.id.modules;
+                    break;
+                case "downloads":
+                    itemId = R.id.downloads;
+                    break;
+                case "magiskhide":
+                    itemId = R.id.magiskhide;
+                    break;
+                case "log":
+                    itemId = R.id.log;
+                    break;
+                case "settings":
+                    itemId = R.id.settings;
+                    break;
+                case "about":
+                    itemId = R.id.app_about;
+                    break;
+            }
         }
+        navigate(itemId);
     }
 
     public void navigate(int itemId) {
+        int bak = mDrawerItem;
+        mDrawerItem = itemId;
+        navigationView.setCheckedItem(itemId);
         switch (itemId) {
             case R.id.status:
                 displayFragment(new StatusFragment(), "status", true);
@@ -165,13 +211,14 @@ public class MainActivity extends AppCompatActivity
                 break;
             case R.id.log:
                 displayFragment(new LogFragment(), "log", false);
-                toolbar.setElevation(0);
                 break;
             case R.id.settings:
                 startActivity(new Intent(this, SettingsActivity.class));
+                mDrawerItem = bak;
                 break;
             case R.id.app_about:
                 startActivity(new Intent(this, AboutActivity.class));
+                mDrawerItem = bak;
                 break;
         }
     }
@@ -182,5 +229,6 @@ public class MainActivity extends AppCompatActivity
         transaction.setCustomAnimations(android.R.anim.fade_in, android.R.anim.fade_out);
         transaction.replace(R.id.content_frame, navFragment, tag).commitNow();
         if (setElevation) toolbar.setElevation(toolbarElevation);
+        else toolbar.setElevation(0);
     }
 }

app/src/main/java/com/topjohnwu/magisk/ModulesFragment.java

@@ -5,7 +5,6 @@ import android.content.Intent;
 import android.net.Uri;
 import android.os.Bundle;
 import android.support.annotation.Nullable;
-import android.support.v4.app.Fragment;
 import android.support.v4.widget.SwipeRefreshLayout;
 import android.support.v7.widget.RecyclerView;
 import android.view.LayoutInflater;
@@ -15,10 +14,11 @@ import android.widget.TextView;
 
 import com.github.clans.fab.FloatingActionButton;
 import com.topjohnwu.magisk.adapters.ModulesAdapter;
+import com.topjohnwu.magisk.asyncs.FlashZip;
+import com.topjohnwu.magisk.asyncs.LoadModules;
+import com.topjohnwu.magisk.components.Fragment;
 import com.topjohnwu.magisk.module.Module;
-import com.topjohnwu.magisk.module.ModuleHelper;
+import com.topjohnwu.magisk.utils.CallbackEvent;
-import com.topjohnwu.magisk.utils.Async;
-import com.topjohnwu.magisk.utils.CallbackHandler;
 import com.topjohnwu.magisk.utils.Logger;
 
 import java.util.ArrayList;
@@ -28,7 +28,7 @@ import butterknife.BindView;
 import butterknife.ButterKnife;
 import butterknife.Unbinder;
 
-public class ModulesFragment extends Fragment implements CallbackHandler.EventListener {
+public class ModulesFragment extends Fragment implements CallbackEvent.Listener<Void> {
 
     private static final int FETCH_ZIP_CODE = 2;
 
@@ -54,7 +54,7 @@ public class ModulesFragment extends Fragment implements CallbackHandler.EventLi
 
         mSwipeRefreshLayout.setOnRefreshListener(() -> {
             recyclerView.setVisibility(View.GONE);
-            new Async.LoadModules().exec();
+            new LoadModules(getActivity()).exec();
         });
 
         recyclerView.addOnScrollListener(new RecyclerView.OnScrollListener() {
@@ -69,7 +69,7 @@ public class ModulesFragment extends Fragment implements CallbackHandler.EventLi
             }
         });
 
-        if (Global.Events.moduleLoadDone.isTriggered) {
+        if (getApplication().moduleLoadDone.isTriggered) {
             updateUI();
         }
 
@@ -77,7 +77,7 @@ public class ModulesFragment extends Fragment implements CallbackHandler.EventLi
     }
 
     @Override
-    public void onTrigger(CallbackHandler.Event event) {
+    public void onTrigger(CallbackEvent<Void> event) {
         Logger.dev("ModulesFragment: UI refresh triggered");
         updateUI();
     }
@@ -87,7 +87,7 @@ public class ModulesFragment extends Fragment implements CallbackHandler.EventLi
         if (requestCode == FETCH_ZIP_CODE && resultCode == Activity.RESULT_OK && data != null) {
             // Get the URI of the selected file
             final Uri uri = data.getData();
-            new Async.FlashZIP(getActivity(), uri).exec();
+            new FlashZip(getActivity(), uri).exec();
         }
 
     }
@@ -95,13 +95,13 @@ public class ModulesFragment extends Fragment implements CallbackHandler.EventLi
     @Override
     public void onStart() {
         super.onStart();
-        CallbackHandler.register(Global.Events.moduleLoadDone, this);
+        getApplication().moduleLoadDone.register(this);
         getActivity().setTitle(R.string.modules);
     }
 
     @Override
     public void onStop() {
-        CallbackHandler.unRegister(Global.Events.moduleLoadDone, this);
+        getApplication().moduleLoadDone.unRegister(this);
         super.onStop();
     }
 
@@ -112,7 +112,8 @@ public class ModulesFragment extends Fragment implements CallbackHandler.EventLi
     }
 
     private void updateUI() {
-        ModuleHelper.getModuleList(listModules);
+        listModules.clear();
+        listModules.addAll(getApplication().moduleMap.values());
         if (listModules.size() == 0) {
             emptyRv.setVisibility(View.VISIBLE);
             recyclerView.setVisibility(View.GONE);

app/src/main/java/com/topjohnwu/magisk/ReposFragment.java

@@ -2,7 +2,6 @@ package com.topjohnwu.magisk;
 
 import android.os.Bundle;
 import android.support.annotation.Nullable;
-import android.support.v4.app.Fragment;
 import android.support.v4.view.MenuItemCompat;
 import android.support.v4.widget.SwipeRefreshLayout;
 import android.support.v7.widget.RecyclerView;
@@ -16,10 +15,12 @@ import android.widget.TextView;
 
 import com.topjohnwu.magisk.adapters.ReposAdapter;
 import com.topjohnwu.magisk.adapters.SimpleSectionedRecyclerViewAdapter;
-import com.topjohnwu.magisk.module.ModuleHelper;
+import com.topjohnwu.magisk.asyncs.LoadRepos;
+import com.topjohnwu.magisk.asyncs.ParallelTask;
+import com.topjohnwu.magisk.components.Fragment;
+import com.topjohnwu.magisk.module.Module;
 import com.topjohnwu.magisk.module.Repo;
-import com.topjohnwu.magisk.utils.Async;
+import com.topjohnwu.magisk.utils.CallbackEvent;
-import com.topjohnwu.magisk.utils.CallbackHandler;
 import com.topjohnwu.magisk.utils.Logger;
 
 import java.util.ArrayList;
@@ -29,7 +30,7 @@ import butterknife.BindView;
 import butterknife.ButterKnife;
 import butterknife.Unbinder;
 
-public class ReposFragment extends Fragment implements CallbackHandler.EventListener {
+public class ReposFragment extends Fragment implements CallbackEvent.Listener<Void> {
 
     private Unbinder unbinder;
     @BindView(R.id.recyclerView) RecyclerView recyclerView;
@@ -68,10 +69,10 @@ public class ReposFragment extends Fragment implements CallbackHandler.EventList
 
         mSwipeRefreshLayout.setOnRefreshListener(() -> {
             recyclerView.setVisibility(View.GONE);
-            new Async.LoadRepos(getActivity()).exec();
+            new LoadRepos(getActivity()).exec();
         });
 
-        if (Global.Events.repoLoadDone.isTriggered) {
+        if (getApplication().repoLoadDone.isTriggered) {
             reloadRepos();
             updateUI();
         }
@@ -93,7 +94,7 @@ public class ReposFragment extends Fragment implements CallbackHandler.EventList
     }
 
     @Override
-    public void onTrigger(CallbackHandler.Event event) {
+    public void onTrigger(CallbackEvent<Void> event) {
         Logger.dev("ReposFragment: UI refresh triggered");
         reloadRepos();
         updateUI();
@@ -109,13 +110,13 @@ public class ReposFragment extends Fragment implements CallbackHandler.EventList
     @Override
     public void onStart() {
         super.onStart();
-        CallbackHandler.register(Global.Events.repoLoadDone, this);
+        getApplication().repoLoadDone.register(this);
         getActivity().setTitle(R.string.downloads);
     }
 
     @Override
     public void onStop() {
-        CallbackHandler.unRegister(Global.Events.repoLoadDone, this);
+        getApplication().repoLoadDone.unRegister(this);
         super.onStop();
     }
 
@@ -126,7 +127,21 @@ public class ReposFragment extends Fragment implements CallbackHandler.EventList
     }
 
     private void reloadRepos() {
-        ModuleHelper.getRepoLists(mUpdateRepos, mInstalledRepos, mOthersRepos);
+        mUpdateRepos.clear();
+        mInstalledRepos.clear();
+        mOthersRepos.clear();
+        for (Repo repo : getApplication().repoMap.values()) {
+            Module module = getApplication().moduleMap.get(repo.getId());
+            if (module != null) {
+                if (repo.getVersionCode() > module.getVersionCode()) {
+                    mUpdateRepos.add(repo);
+                } else {
+                    mInstalledRepos.add(repo);
+                }
+            } else {
+                mOthersRepos.add(repo);
+            }
+        }
         fUpdateRepos.clear();
         fInstalledRepos.clear();
         fOthersRepos.clear();
@@ -158,7 +173,7 @@ public class ReposFragment extends Fragment implements CallbackHandler.EventList
         mSwipeRefreshLayout.setRefreshing(false);
     }
 
-    private class FilterApps extends Async.NormalTask<String, Void, Void> {
+    private class FilterApps extends ParallelTask<String, Void, Void> {
         @Override
         protected Void doInBackground(String... strings) {
             String newText = strings[0];

app/src/main/java/com/topjohnwu/magisk/SettingsActivity.java

@@ -9,13 +9,14 @@ import android.preference.PreferenceManager;
 import android.preference.PreferenceScreen;
 import android.preference.SwitchPreference;
 import android.support.v7.app.ActionBar;
-import android.support.v7.app.AppCompatActivity;
 import android.support.v7.widget.Toolbar;
 import android.view.WindowManager;
 import android.widget.Toast;
 
-import com.topjohnwu.magisk.module.ModuleHelper;
+import com.topjohnwu.magisk.asyncs.MagiskHide;
-import com.topjohnwu.magisk.utils.Async;
+import com.topjohnwu.magisk.asyncs.SerialTask;
+import com.topjohnwu.magisk.components.Activity;
+import com.topjohnwu.magisk.components.AlertDialogBuilder;
 import com.topjohnwu.magisk.utils.Logger;
 import com.topjohnwu.magisk.utils.Shell;
 import com.topjohnwu.magisk.utils.Utils;
@@ -23,15 +24,15 @@ import com.topjohnwu.magisk.utils.Utils;
 import butterknife.BindView;
 import butterknife.ButterKnife;
 
-public class SettingsActivity extends AppCompatActivity {
+public class SettingsActivity extends Activity {
 
     @BindView(R.id.toolbar) Toolbar toolbar;
 
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
-        if (Global.Configs.isDarkTheme) {
+        if (getApplicationContext().isDarkTheme) {
-            setTheme(R.style.AppTheme_dh);
+            setTheme(R.style.AppTheme_Dark);
         }
 
         setContentView(R.layout.activity_container);
@@ -77,6 +78,10 @@ public class SettingsActivity extends AppCompatActivity {
 
         private ListPreference suAccess, autoRes, suNotification, requestTimeout;
 
+        private MagiskManager getApplication() {
+            return Utils.getMagiskManager(getActivity());
+        }
+
         @Override
         public void onCreate(Bundle savedInstanceState) {
             super.onCreate(savedInstanceState);
@@ -84,10 +89,6 @@ public class SettingsActivity extends AppCompatActivity {
             prefs = PreferenceManager.getDefaultSharedPreferences(getActivity());
             prefScreen = getPreferenceScreen();
 
-            SwitchPreference busybox = (SwitchPreference) findPreference("busybox");
-            SwitchPreference magiskHide = (SwitchPreference) findPreference("magiskhide");
-            SwitchPreference hosts = (SwitchPreference) findPreference("hosts");
-
             PreferenceCategory magiskCategory = (PreferenceCategory) findPreference("magisk");
             PreferenceCategory suCategory = (PreferenceCategory) findPreference("superuser");
 
@@ -99,7 +100,7 @@ public class SettingsActivity extends AppCompatActivity {
             setSummary();
 
             findPreference("clear").setOnPreferenceClickListener((pref) -> {
-                ModuleHelper.clearRepoCache(getActivity());
+                Utils.clearRepoCache(getActivity());
                 return true;
             });
 
@@ -107,14 +108,11 @@ public class SettingsActivity extends AppCompatActivity {
                 prefScreen.removePreference(magiskCategory);
                 prefScreen.removePreference(suCategory);
             } else {
-                if (!Global.Info.isSuClient)
+                if (!getApplication().isSuClient) {
                     prefScreen.removePreference(suCategory);
-                if (Global.Info.magiskVersion < 11)
+                }
+                if (getApplication().magiskVersion < 11) {
                     prefScreen.removePreference(magiskCategory);
-                if (Global.Info.disabled) {
-                    busybox.setEnabled(false);
-                    magiskHide.setEnabled(false);
-                    hosts.setEnabled(false);
                 }
             }
         }
@@ -139,22 +137,22 @@ public class SettingsActivity extends AppCompatActivity {
             switch (key) {
                 case "dark_theme":
                     enabled = prefs.getBoolean("dark_theme", false);
-                    if (Global.Configs.isDarkTheme != enabled) {
+                    if (getApplication().isDarkTheme != enabled) {
-                        Global.Configs.isDarkTheme = enabled;
+                        getApplication().isDarkTheme = enabled;
+                        getApplication().reloadMainActivity.trigger();
                         getActivity().recreate();
-                        Global.Events.reloadMainActivity.trigger();
                     }
                     break;
                 case "disable":
                     enabled = prefs.getBoolean("disable", false);
-                    new Async.RootTask<Void, Void, Void>() {
+                    new SerialTask<Void, Void, Void>() {
                         private boolean enable = enabled;
                         @Override
                         protected Void doInBackground(Void... voids) {
                             if (enable) {
-                                Utils.createFile(Global.MAGISK_DISABLE_FILE);
+                                Utils.createFile(MagiskManager.MAGISK_DISABLE_FILE);
                             } else {
-                                Utils.removeItem(Global.MAGISK_DISABLE_FILE);
+                                Utils.removeItem(MagiskManager.MAGISK_DISABLE_FILE);
                             }
                             return null;
                         }
@@ -163,7 +161,7 @@ public class SettingsActivity extends AppCompatActivity {
                     break;
                 case "busybox":
                     enabled = prefs.getBoolean("busybox", false);
-                    new Async.RootTask<Void, Void, Void>() {
+                    new SerialTask<Void, Void, Void>() {
                         private boolean enable = enabled;
                         @Override
                         protected Void doInBackground(Void... voids) {
@@ -183,20 +181,23 @@ public class SettingsActivity extends AppCompatActivity {
                 case "magiskhide":
                     enabled = prefs.getBoolean("magiskhide", false);
                     if (enabled) {
-                        if (!Global.Info.isSuClient) {
+                        if (!getApplication().isSuClient) {
-                            Utils.getAlertDialogBuilder(getActivity())
+                            new AlertDialogBuilder(getActivity())
                                     .setTitle(R.string.no_magisksu_title)
                                     .setMessage(R.string.no_magisksu_msg)
-                                    .setPositiveButton(R.string.understand, (dialog, which) -> new Async.MagiskHide().enable())
+                                    .setPositiveButton(R.string.understand, (dialog, which) -> new MagiskHide().enable())
                                     .setCancelable(false)
                                     .show();
-                        } else new Async.MagiskHide().enable();
+                        } else {
-                    } else
+                            new MagiskHide().enable();
-                        new Async.MagiskHide().disable();
+                        }
+                    } else {
+                        new MagiskHide().disable();
+                    }
                     break;
                 case "hosts":
                     enabled = prefs.getBoolean("hosts", false);
-                    new Async.RootTask<Void, Void, Void>() {
+                    new SerialTask<Void, Void, Void>() {
                         private boolean enable = enabled;
                         @Override
                         protected Void doInBackground(Void... voids) {
@@ -212,23 +213,23 @@ public class SettingsActivity extends AppCompatActivity {
                     }.exec();
                     break;
                 case "su_access":
-                    Global.Configs.suAccessState = Utils.getPrefsInt(prefs, "su_access", 0);
+                    getApplication().suAccessState = Utils.getPrefsInt(prefs, "su_access", 0);
-                    Shell.su("setprop persist.sys.root_access " + Global.Configs.suAccessState);
+                    Shell.su("setprop persist.sys.root_access " + getApplication().suAccessState);
                     break;
                 case "su_request_timeout":
-                    Global.Configs.suRequestTimeout = Utils.getPrefsInt(prefs, "su_request_timeout", 10);
+                    getApplication().suRequestTimeout = Utils.getPrefsInt(prefs, "su_request_timeout", 10);
                     break;
                 case "su_auto_response":
-                    Global.Configs.suResponseType = Utils.getPrefsInt(prefs, "su_auto_response", 0);
+                    getApplication().suResponseType = Utils.getPrefsInt(prefs, "su_auto_response", 0);
                     break;
                 case "su_notification":
-                    Global.Configs.suNotificationType = Utils.getPrefsInt(prefs, "su_notification", 1);
+                    getApplication().suNotificationType = Utils.getPrefsInt(prefs, "su_notification", 1);
                     break;
                 case "developer_logging":
-                    Global.Configs.devLogging = prefs.getBoolean("developer_logging", false);
+                    MagiskManager.devLogging = prefs.getBoolean("developer_logging", false);
                     break;
                 case "shell_logging":
-                    Global.Configs.shellLogging = prefs.getBoolean("shell_logging", false);
+                    MagiskManager.shellLogging = prefs.getBoolean("shell_logging", false);
                     break;
             }
             setSummary();
@@ -236,11 +237,11 @@ public class SettingsActivity extends AppCompatActivity {
 
         private void setSummary() {
             suAccess.setSummary(getResources()
-                    .getStringArray(R.array.su_access)[Global.Configs.suAccessState]);
+                    .getStringArray(R.array.su_access)[getApplication().suAccessState]);
             autoRes.setSummary(getResources()
-                    .getStringArray(R.array.auto_response)[Global.Configs.suResponseType]);
+                    .getStringArray(R.array.auto_response)[getApplication().suResponseType]);
             suNotification.setSummary(getResources()
-                    .getStringArray(R.array.su_notification)[Global.Configs.suNotificationType]);
+                    .getStringArray(R.array.su_notification)[getApplication().suNotificationType]);
             requestTimeout.setSummary(
                     getString(R.string.request_timeout_summary, prefs.getString("su_request_timeout", "10")));
         }

app/src/main/java/com/topjohnwu/magisk/SplashActivity.java

@@ -1,36 +1,73 @@
 package com.topjohnwu.magisk;
 
+import android.app.job.JobInfo;
+import android.app.job.JobScheduler;
+import android.content.ComponentName;
+import android.content.Context;
 import android.content.Intent;
 import android.os.Bundle;
-import android.support.v7.app.AppCompatActivity;
 
-import com.topjohnwu.magisk.utils.Async;
+import com.topjohnwu.magisk.asyncs.CheckUpdates;
+import com.topjohnwu.magisk.asyncs.GetBootBlocks;
+import com.topjohnwu.magisk.asyncs.LoadApps;
+import com.topjohnwu.magisk.asyncs.LoadModules;
+import com.topjohnwu.magisk.asyncs.LoadRepos;
+import com.topjohnwu.magisk.asyncs.MagiskHide;
+import com.topjohnwu.magisk.components.Activity;
+import com.topjohnwu.magisk.services.UpdateCheckService;
 
-public class SplashActivity extends AppCompatActivity {
+public class SplashActivity extends Activity{
+
+    private static final int UPDATE_SERVICE_ID = 1;
 
     @Override
     protected void onCreate(Bundle savedInstanceState) {
 
         super.onCreate(savedInstanceState);
 
+        MagiskManager magiskManager = getApplicationContext();
+
         // Init the info and configs and root shell
-        Global.init(getApplicationContext());
+        magiskManager.init();
+
+        // Initialize the update check service, notify every 3 hours
+        if (!"install".equals(getIntent().getStringExtra(MagiskManager.INTENT_SECTION))) {
+            ComponentName service = new ComponentName(magiskManager, UpdateCheckService.class);
+            JobInfo jobInfo = new JobInfo.Builder(UPDATE_SERVICE_ID, service)
+                    .setRequiredNetworkType(JobInfo.NETWORK_TYPE_ANY)
+                    .setPersisted(true)
+                    .setPeriodic(3 * 60 * 60 * 1000)
+                    .build();
+            JobScheduler scheduler = (JobScheduler) getSystemService(Context.JOB_SCHEDULER_SERVICE);
+            scheduler.schedule(jobInfo);
+        }
 
         // Now fire all async tasks
-        new Async.CheckUpdates().exec();
+        new GetBootBlocks(this).exec();
-        new Async.GetBootBlocks().exec();
+        if (magiskManager.magiskHide && magiskManager.magiskVersion > 11 &&
-        new Async.LoadModules() {
+                !magiskManager.magiskHideStarted) {
+            new MagiskHide().enable();
+        }
+        new LoadModules(this) {
             @Override
             protected void onPostExecute(Void v) {
                 super.onPostExecute(v);
-                new Async.LoadRepos(getApplicationContext()).exec();
+                new LoadRepos(activity).exec();
+            }
+        }.exec();
+        new LoadApps(this).exec();
+        new CheckUpdates(this, false){
+            @Override
+            protected void onPostExecute(Void v) {
+                super.onPostExecute(v);
+                String section = getIntent().getStringExtra(MagiskManager.INTENT_SECTION);
+                Intent intent = new Intent(magiskManager, MainActivity.class);
+                if (section != null) {
+                    intent.putExtra(MagiskManager.INTENT_SECTION, section);
+                }
+                startActivity(intent);
+                finish();
             }
         }.exec();
-        new Async.LoadApps(getPackageManager()).exec();
-
-        // Preparation done, now start main activity
-        Intent intent = new Intent(getApplicationContext(), MainActivity.class);
-        startActivity(intent);
-        finish();
     }
 }

app/src/main/java/com/topjohnwu/magisk/StatusFragment.java

@@ -1,12 +1,7 @@
 package com.topjohnwu.magisk;
 
-import android.app.AlertDialog;
-import android.content.Intent;
-import android.net.Uri;
 import android.os.Bundle;
 import android.support.annotation.Nullable;
-import android.support.v4.app.Fragment;
-import android.support.v4.app.FragmentTransaction;
 import android.support.v4.widget.SwipeRefreshLayout;
 import android.view.LayoutInflater;
 import android.view.View;
@@ -15,8 +10,10 @@ import android.widget.ImageView;
 import android.widget.ProgressBar;
 import android.widget.TextView;
 
-import com.topjohnwu.magisk.utils.Async;
+import com.topjohnwu.magisk.asyncs.CheckUpdates;
-import com.topjohnwu.magisk.utils.CallbackHandler;
+import com.topjohnwu.magisk.components.AlertDialogBuilder;
+import com.topjohnwu.magisk.components.Fragment;
+import com.topjohnwu.magisk.utils.CallbackEvent;
 import com.topjohnwu.magisk.utils.Logger;
 import com.topjohnwu.magisk.utils.Shell;
 import com.topjohnwu.magisk.utils.Utils;
@@ -24,9 +21,10 @@ import com.topjohnwu.magisk.utils.Utils;
 import butterknife.BindColor;
 import butterknife.BindView;
 import butterknife.ButterKnife;
+import butterknife.OnClick;
 import butterknife.Unbinder;
 
-public class StatusFragment extends Fragment implements CallbackHandler.EventListener {
+public class StatusFragment extends Fragment implements CallbackEvent.Listener<Void> {
 
     private static boolean noDialog = false;
 
@@ -55,9 +53,24 @@ public class StatusFragment extends Fragment implements CallbackHandler.EventLis
     @BindColor(R.color.grey500) int colorNeutral;
     @BindColor(R.color.blue500) int colorInfo;
     @BindColor(android.R.color.transparent) int trans;
-    int defaultColor;
 
-    private AlertDialog updateMagisk;
+    @OnClick(R.id.safetyNet_container)
+    public void safetyNet() {
+        safetyNetProgress.setVisibility(View.VISIBLE);
+        safetyNetContainer.setBackgroundColor(trans);
+        safetyNetIcon.setImageResource(0);
+        safetyNetStatusText.setText(R.string.checking_safetyNet_status);
+        Utils.checkSafetyNet(getApplication());
+    }
+
+    @OnClick(R.id.magisk_status_container)
+    public void gotoInstall() {
+        if (getApplication().remoteMagiskVersion > 0) {
+            ((MainActivity) getActivity()).navigate(R.id.install);
+        }
+    }
+
+    private int defaultColor;
 
     @Nullable
     @Override
@@ -80,50 +93,40 @@ public class StatusFragment extends Fragment implements CallbackHandler.EventLis
             safetyNetStatusText.setText(R.string.safetyNet_check_text);
             safetyNetStatusText.setTextColor(defaultColor);
 
-            Global.Events.safetyNetDone.isTriggered = false;
+            getApplication().safetyNetDone.isTriggered = false;
             noDialog = false;
 
             updateUI();
-            new Async.CheckUpdates().exec();
+            new CheckUpdates(getActivity()).exec();
         });
 
-        safetyNetContainer.setOnClickListener(view -> {
+        if (getApplication().magiskVersion < 0 && Shell.rootAccess() && !noDialog) {
-            safetyNetProgress.setVisibility(View.VISIBLE);
-            safetyNetContainer.setBackgroundColor(trans);
-            safetyNetIcon.setImageResource(0);
-            safetyNetStatusText.setText(R.string.checking_safetyNet_status);
-            Async.checkSafetyNet(getActivity());
-        });
-
-        if (Global.Info.magiskVersion < 0 && Shell.rootAccess() && !noDialog) {
             noDialog = true;
-            Utils.getAlertDialogBuilder(getActivity())
+            new AlertDialogBuilder(getActivity())
                     .setTitle(R.string.no_magisk_title)
                     .setMessage(R.string.no_magisk_msg)
                     .setCancelable(true)
-                    .setPositiveButton(R.string.goto_install, (dialogInterface, i) -> {
+                    .setPositiveButton(R.string.goto_install, (d, i) -> gotoInstall())
-                        ((MainActivity) getActivity()).navigationView.setCheckedItem(R.id.install);
-                        FragmentTransaction transaction = getFragmentManager().beginTransaction();
-                        transaction.setCustomAnimations(android.R.animator.fade_in, android.R.animator.fade_out);
-                        try {
-                            transaction.replace(R.id.content_frame, new InstallFragment(), "install").commit();
-                        } catch (IllegalStateException ignored) {}
-                    })
                     .setNegativeButton(R.string.no_thanks, null)
                     .show();
         }
 
         updateUI();
 
+        if (getApplication().updateCheckDone.isTriggered)
+            updateCheckUI();
+        if (getApplication().safetyNetDone.isTriggered)
+            updateSafetyNetUI();
+
         return v;
     }
 
     @Override
-    public void onTrigger(CallbackHandler.Event event) {
+    public void onTrigger(CallbackEvent<Void> event) {
-        if (event == Global.Events.updateCheckDone) {
+        if (event == getApplication().updateCheckDone) {
             Logger.dev("StatusFragment: Update Check UI refresh triggered");
             updateCheckUI();
-        } else if (event == Global.Events.safetyNetDone) {
+        } else if (event == getApplication().safetyNetDone) {
             Logger.dev("StatusFragment: SafetyNet UI refresh triggered");
             updateSafetyNetUI();
         }
@@ -132,21 +135,15 @@ public class StatusFragment extends Fragment implements CallbackHandler.EventLis
     @Override
     public void onStart() {
         super.onStart();
-        CallbackHandler.register(Global.Events.updateCheckDone, this);
+        getApplication().updateCheckDone.register(this);
-        CallbackHandler.register(Global.Events.safetyNetDone, this);
+        getApplication().safetyNetDone.register(this);
-        if (Global.Events.updateCheckDone.isTriggered) {
-            updateCheckUI();
-        }
-        if (Global.Events.safetyNetDone.isTriggered) {
-            updateSafetyNetUI();
-        }
         getActivity().setTitle(R.string.status);
     }
 
     @Override
     public void onStop() {
-        CallbackHandler.unRegister(Global.Events.updateCheckDone, this);
+        getApplication().updateCheckDone.unRegister(this);
-        CallbackHandler.unRegister(Global.Events.safetyNetDone, this);
+        getApplication().safetyNetDone.unRegister(this);
         super.onStop();
     }
 
@@ -159,14 +156,14 @@ public class StatusFragment extends Fragment implements CallbackHandler.EventLis
     private void updateUI() {
         int image, color;
 
-        Global.updateMagiskInfo();
+        getApplication().updateMagiskInfo();
 
-        if (Global.Info.magiskVersion < 0) {
+        if (getApplication().magiskVersion < 0) {
             magiskVersionText.setText(R.string.magisk_version_error);
-        } else if (Global.Info.disabled) {
+        } else if (getApplication().disabled) {
-            magiskVersionText.setText(getString(R.string.magisk_version_disable, Global.Info.magiskVersionString));
+            magiskVersionText.setText(getString(R.string.magisk_version_core_only, getApplication().magiskVersionString));
         } else {
-            magiskVersionText.setText(getString(R.string.magisk_version, Global.Info.magiskVersionString));
+            magiskVersionText.setText(getString(R.string.magisk_version, getApplication().magiskVersionString));
         }
 
         switch (Shell.rootStatus) {
@@ -177,11 +174,11 @@ public class StatusFragment extends Fragment implements CallbackHandler.EventLis
                 rootInfoText.setText(R.string.root_info_warning);
                 break;
             case 1:
-                if (Global.Info.suVersion != null) {
+                if (getApplication().suVersion != null) {
                     color = colorOK;
                     image = R.drawable.ic_check_circle;
                     rootStatusText.setText(R.string.proper_root);
-                    rootInfoText.setText(Global.Info.suVersion);
+                    rootInfoText.setText(getApplication().suVersion);
                     break;
                 }
             case -1:
@@ -200,26 +197,23 @@ public class StatusFragment extends Fragment implements CallbackHandler.EventLis
     private void updateCheckUI() {
         int image, color;
 
-        if (Global.Info.remoteMagiskVersion < 0) {
+        if (getApplication().remoteMagiskVersion < 0) {
             color = colorNeutral;
             image = R.drawable.ic_help;
             magiskUpdateText.setText(R.string.cannot_check_updates);
-        } else if (Global.Info.remoteMagiskVersion > Global.Info.magiskVersion) {
+        } else if (getApplication().remoteMagiskVersion > getApplication().magiskVersion) {
             color = colorInfo;
             image = R.drawable.ic_update;
-            magiskUpdateText.setText(getString(R.string.magisk_update_available, Global.Info.remoteMagiskVersion));
+            magiskUpdateText.setText(getString(R.string.magisk_update_available, getApplication().remoteMagiskVersion));
         } else {
             color = colorOK;
             image = R.drawable.ic_check_circle;
             magiskUpdateText.setText(getString(R.string.up_to_date, getString(R.string.magisk)));
         }
 
-        if (Global.Info.magiskVersion < 0) {
+        if (getApplication().magiskVersion < 0) {
             color = colorBad;
             image = R.drawable.ic_cancel;
-        } else if (Global.Info.disabled) {
-            color = colorNeutral;
-            image = R.drawable.ic_cancel;
         }
 
         magiskStatusContainer.setBackgroundColor(color);
@@ -229,38 +223,12 @@ public class StatusFragment extends Fragment implements CallbackHandler.EventLis
 
         magiskCheckUpdatesProgress.setVisibility(View.GONE);
         mSwipeRefreshLayout.setRefreshing(false);
-
-        updateMagisk = Utils.getAlertDialogBuilder(getActivity())
-                .setTitle(R.string.magisk_update_title)
-                .setMessage(getString(R.string.magisk_update_message, Global.Info.remoteMagiskVersion))
-                .setCancelable(true)
-                .setPositiveButton(R.string.goto_install, (dialogInterface, i) -> {
-                    ((MainActivity) getActivity()).navigationView.setCheckedItem(R.id.install);
-                    FragmentTransaction transaction = getFragmentManager().beginTransaction();
-                    transaction.setCustomAnimations(android.R.anim.fade_in, android.R.anim.fade_out);
-                    try {
-                        transaction.replace(R.id.content_frame, new InstallFragment(), "install").commit();
-                    } catch (IllegalStateException ignored) {}
-                })
-                .setNeutralButton(R.string.check_release_notes, (dialog, which) -> {
-                    getActivity().startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse(Global.Info.releaseNoteLink)));
-                })
-                .setNegativeButton(R.string.no_thanks, null)
-                .create();
-
-        if (Global.Info.magiskVersion < Global.Info.remoteMagiskVersion && Shell.rootAccess()) {
-            magiskStatusContainer.setOnClickListener(view -> updateMagisk.show());
-            if (!noDialog) {
-                noDialog = true;
-                updateMagisk.show();
-            }
-        }
     }
 
     private void updateSafetyNetUI() {
         int image, color;
         safetyNetProgress.setVisibility(View.GONE);
-        switch (Global.Info.SNCheckResult) {
+        switch (getApplication().SNCheckResult) {
             case -3:
                 color = colorNeutral;
                 image = R.drawable.ic_help;

app/src/main/java/com/topjohnwu/magisk/SuLogFragment.java

@@ -2,7 +2,6 @@ package com.topjohnwu.magisk;
 
 import android.os.Bundle;
 import android.support.annotation.Nullable;
-import android.support.v4.app.Fragment;
 import android.support.v7.widget.RecyclerView;
 import android.view.LayoutInflater;
 import android.view.Menu;
@@ -13,7 +12,8 @@ import android.view.ViewGroup;
 import android.widget.TextView;
 
 import com.topjohnwu.magisk.adapters.SuLogAdapter;
-import com.topjohnwu.magisk.superuser.SuLogDatabaseHelper;
+import com.topjohnwu.magisk.components.Fragment;
+import com.topjohnwu.magisk.database.SuLogDatabaseHelper;
 import com.topjohnwu.magisk.superuser.SuLogEntry;
 
 import java.util.List;

app/src/main/java/com/topjohnwu/magisk/SuperuserFragment.java

@@ -3,7 +3,6 @@ package com.topjohnwu.magisk;
 import android.content.pm.PackageManager;
 import android.os.Bundle;
 import android.support.annotation.Nullable;
-import android.support.v4.app.Fragment;
 import android.support.v7.widget.RecyclerView;
 import android.view.LayoutInflater;
 import android.view.View;
@@ -11,8 +10,9 @@ import android.view.ViewGroup;
 import android.widget.TextView;
 
 import com.topjohnwu.magisk.adapters.PolicyAdapter;
+import com.topjohnwu.magisk.components.Fragment;
+import com.topjohnwu.magisk.database.SuDatabaseHelper;
 import com.topjohnwu.magisk.superuser.Policy;
-import com.topjohnwu.magisk.superuser.SuDatabaseHelper;
 
 import java.util.List;
 

app/src/main/java/com/topjohnwu/magisk/adapters/ApplicationAdapter.java

@@ -13,7 +13,8 @@ import android.widget.ImageView;
 import android.widget.TextView;
 
 import com.topjohnwu.magisk.R;
-import com.topjohnwu.magisk.utils.Async;
+import com.topjohnwu.magisk.asyncs.MagiskHide;
+import com.topjohnwu.magisk.components.SnackbarMaker;
 import com.topjohnwu.magisk.utils.Utils;
 
 import java.util.ArrayList;
@@ -50,8 +51,8 @@ public class ApplicationAdapter extends RecyclerView.Adapter<ApplicationAdapter.
     }
 
     public void setLists(List<ApplicationInfo> listApps, List<String> hideList) {
-        mOriginalList = mList = Collections.unmodifiableList(listApps);
+        mOriginalList = mList = listApps;
-        mHideList = new ArrayList<>(hideList);
+        mHideList = hideList;
         notifyDataSetChanged();
     }
 
@@ -76,20 +77,19 @@ public class ApplicationAdapter extends RecyclerView.Adapter<ApplicationAdapter.
         if (SNLIST.contains(info.packageName)) {
             holder.checkBox.setChecked(true);
             holder.checkBox.setEnabled(false);
-            holder.itemView.setOnClickListener(v -> {
+            holder.itemView.setOnClickListener(v ->
-                Snackbar snackbar = Snackbar.make(holder.itemView, R.string.safetyNet_hide_notice, Snackbar.LENGTH_LONG);
+                SnackbarMaker.make(holder.itemView,
-                ((TextView) snackbar.getView().findViewById(android.support.design.R.id.snackbar_text)).setMaxLines(2);
+                        R.string.safetyNet_hide_notice, Snackbar.LENGTH_LONG).show()
-                snackbar.show();
+            );
-            });
         } else {
             holder.checkBox.setEnabled(true);
             holder.checkBox.setChecked(mHideList.contains(info.packageName));
             holder.checkBox.setOnCheckedChangeListener((v, isChecked) -> {
                 if (isChecked) {
-                    new Async.MagiskHide().add(info.packageName);
+                    new MagiskHide().add(info.packageName);
                     mHideList.add(info.packageName);
                 } else {
-                    new Async.MagiskHide().rm(info.packageName);
+                    new MagiskHide().rm(info.packageName);
                     mHideList.remove(info.packageName);
                 }
             });

app/src/main/java/com/topjohnwu/magisk/adapters/ModulesAdapter.java

@@ -12,8 +12,9 @@ import android.widget.ImageView;
 import android.widget.TextView;
 
 import com.topjohnwu.magisk.R;
+import com.topjohnwu.magisk.asyncs.SerialTask;
+import com.topjohnwu.magisk.components.SnackbarMaker;
 import com.topjohnwu.magisk.module.Module;
-import com.topjohnwu.magisk.utils.Async;
 import com.topjohnwu.magisk.utils.Shell;
 
 import java.util.List;
@@ -52,7 +53,7 @@ public class ModulesAdapter extends RecyclerView.Adapter<ModulesAdapter.ViewHold
 
         holder.checkBox.setOnCheckedChangeListener(null);
         holder.checkBox.setChecked(module.isEnabled());
-        holder.checkBox.setOnCheckedChangeListener((v, isChecked) -> new Async.RootTask<Void, Void, Void>() {
+        holder.checkBox.setOnCheckedChangeListener((v, isChecked) -> new SerialTask<Void, Void, Void>() {
             @Override
             protected Void doInBackground(Void... voids) {
                 if (isChecked) {
@@ -66,11 +67,11 @@ public class ModulesAdapter extends RecyclerView.Adapter<ModulesAdapter.ViewHold
             @Override
             protected void onPostExecute(Void v) {
                 int snack = isChecked ? R.string.disable_file_removed : R.string.disable_file_created;
-                Snackbar.make(holder.itemView, snack, Snackbar.LENGTH_SHORT).show();
+                SnackbarMaker.make(holder.itemView, snack, Snackbar.LENGTH_SHORT).show();
             }
         }.exec());
 
-        holder.delete.setOnClickListener(v -> new Async.RootTask<Void, Void, Void>() {
+        holder.delete.setOnClickListener(v -> new SerialTask<Void, Void, Void>() {
             private final boolean removed = module.willBeRemoved();
 
             @Override
@@ -86,7 +87,7 @@ public class ModulesAdapter extends RecyclerView.Adapter<ModulesAdapter.ViewHold
             @Override
             protected void onPostExecute(Void v) {
                 int snack = removed ? R.string.remove_file_deleted : R.string.remove_file_created;
-                Snackbar.make(holder.itemView, snack, Snackbar.LENGTH_SHORT).show();
+                SnackbarMaker.make(holder.itemView, snack, Snackbar.LENGTH_SHORT).show();
                 updateDeleteButton(holder, module);
             }
         }.exec());

app/src/main/java/com/topjohnwu/magisk/adapters/PolicyAdapter.java

@@ -15,9 +15,10 @@ import android.widget.Switch;
 import android.widget.TextView;
 
 import com.topjohnwu.magisk.R;
+import com.topjohnwu.magisk.components.AlertDialogBuilder;
+import com.topjohnwu.magisk.components.SnackbarMaker;
+import com.topjohnwu.magisk.database.SuDatabaseHelper;
 import com.topjohnwu.magisk.superuser.Policy;
-import com.topjohnwu.magisk.superuser.SuDatabaseHelper;
-import com.topjohnwu.magisk.utils.Utils;
 
 import java.util.HashSet;
 import java.util.List;
@@ -70,7 +71,7 @@ public class PolicyAdapter extends RecyclerView.Adapter<PolicyAdapter.ViewHolder
                     policy.policy = isChecked ? Policy.ALLOW : Policy.DENY;
                     String message = v.getContext().getString(
                             isChecked ? R.string.su_snack_grant : R.string.su_snack_deny, policy.appName);
-                    Snackbar.make(holder.itemView, message, Snackbar.LENGTH_SHORT).show();
+                    SnackbarMaker.make(holder.itemView, message, Snackbar.LENGTH_SHORT).show();
                     dbHelper.addPolicy(policy);
                 }
             });
@@ -80,7 +81,7 @@ public class PolicyAdapter extends RecyclerView.Adapter<PolicyAdapter.ViewHolder
                     policy.notification = isChecked;
                     String message = v.getContext().getString(
                             isChecked ? R.string.su_snack_notif_on : R.string.su_snack_notif_off, policy.appName);
-                    Snackbar.make(holder.itemView, message, Snackbar.LENGTH_SHORT).show();
+                    SnackbarMaker.make(holder.itemView, message, Snackbar.LENGTH_SHORT).show();
                     dbHelper.addPolicy(policy);
                 }
             });
@@ -90,18 +91,18 @@ public class PolicyAdapter extends RecyclerView.Adapter<PolicyAdapter.ViewHolder
                     policy.logging = isChecked;
                     String message = v.getContext().getString(
                             isChecked ? R.string.su_snack_log_on : R.string.su_snack_log_off, policy.appName);
-                    Snackbar.make(holder.itemView, message, Snackbar.LENGTH_SHORT).show();
+                    SnackbarMaker.make(holder.itemView, message, Snackbar.LENGTH_SHORT).show();
                     dbHelper.addPolicy(policy);
                 }
             });
-            holder.delete.setOnClickListener(v -> Utils.getAlertDialogBuilder(v.getContext())
+            holder.delete.setOnClickListener(v -> new AlertDialogBuilder(v.getContext())
                     .setTitle(R.string.su_revoke_title)
                     .setMessage(v.getContext().getString(R.string.su_revoke_msg, policy.appName))
                     .setPositiveButton(R.string.yes, (dialog, which) -> {
                         policyList.remove(position);
                         notifyItemRemoved(position);
                         notifyItemRangeChanged(position, policyList.size());
-                        Snackbar.make(holder.itemView, v.getContext().getString(R.string.su_snack_revoke, policy.appName),
+                        SnackbarMaker.make(holder.itemView, v.getContext().getString(R.string.su_snack_revoke, policy.appName),
                                 Snackbar.LENGTH_SHORT).show();
                         dbHelper.deletePolicy(policy.uid);
                     })

app/src/main/java/com/topjohnwu/magisk/adapters/ReposAdapter.java

@@ -1,30 +1,25 @@
 package com.topjohnwu.magisk.adapters;
 
-import android.animation.Animator;
-import android.animation.ObjectAnimator;
-import android.animation.ValueAnimator;
 import android.content.Context;
-import android.content.Intent;
 import android.net.Uri;
 import android.support.v7.widget.RecyclerView;
 import android.text.TextUtils;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
-import android.view.ViewTreeObserver;
 import android.widget.ImageView;
 import android.widget.LinearLayout;
 import android.widget.TextView;
 
 import com.topjohnwu.magisk.R;
+import com.topjohnwu.magisk.asyncs.ProcessRepoZip;
+import com.topjohnwu.magisk.components.AlertDialogBuilder;
+import com.topjohnwu.magisk.components.MarkDownWindow;
 import com.topjohnwu.magisk.module.Repo;
-import com.topjohnwu.magisk.receivers.RepoDlReceiver;
+import com.topjohnwu.magisk.receivers.DownloadReceiver;
 import com.topjohnwu.magisk.utils.Utils;
-import com.topjohnwu.magisk.utils.WebWindow;
 
-import java.util.HashSet;
 import java.util.List;
-import java.util.Set;
 
 import butterknife.BindView;
 import butterknife.ButterKnife;
@@ -32,7 +27,7 @@ import butterknife.ButterKnife;
 public class ReposAdapter extends RecyclerView.Adapter<ReposAdapter.ViewHolder> {
 
     private List<Repo> mUpdateRepos, mInstalledRepos, mOthersRepos;
-    private Set<Repo> expandList = new HashSet<>();
+    private Context mContext;
 
     public ReposAdapter(List<Repo> update, List<Repo> installed, List<Repo> others) {
         mUpdateRepos = update;
@@ -42,61 +37,52 @@ public class ReposAdapter extends RecyclerView.Adapter<ReposAdapter.ViewHolder>
 
     @Override
     public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
-        View v = LayoutInflater.from(parent.getContext()).inflate(R.layout.list_item_repo, parent, false);
+        mContext = parent.getContext();
+        View v = LayoutInflater.from(mContext).inflate(R.layout.list_item_repo, parent, false);
         return new ViewHolder(v);
     }
 
     @Override
     public void onBindViewHolder(final ViewHolder holder, int position) {
-        Context context = holder.itemView.getContext();
         Repo repo = getItem(position);
 
         holder.title.setText(repo.getName());
         holder.versionName.setText(repo.getVersion());
         String author = repo.getAuthor();
-        holder.author.setText(TextUtils.isEmpty(author) ? null : context.getString(R.string.author, author));
+        holder.author.setText(TextUtils.isEmpty(author) ? null : mContext.getString(R.string.author, author));
         holder.description.setText(repo.getDescription());
 
-        holder.setExpanded(expandList.contains(repo));
+        holder.infoLayout.setOnClickListener(v -> new MarkDownWindow(null, repo.getDetailUrl(), mContext));
 
-        holder.itemView.setOnClickListener(view -> {
+        holder.downloadImage.setOnClickListener(v -> {
-            if (holder.mExpanded) {
-                holder.collapse();
-                expandList.remove(repo);
-            } else {
-                holder.expand();
-                expandList.add(repo);
-            }
-        });
-        holder.changeLog.setOnClickListener(view -> {
-            if (!TextUtils.isEmpty(repo.getLogUrl())) {
-                new WebWindow(context.getString(R.string.changelog), repo.getLogUrl(), context);
-            }
-        });
-        holder.updateImage.setOnClickListener(view -> {
             String filename = repo.getName() + "-" + repo.getVersion() + ".zip";
-            Utils.getAlertDialogBuilder(context)
+            new AlertDialogBuilder(mContext)
-                    .setTitle(context.getString(R.string.repo_install_title, repo.getName()))
+                    .setTitle(mContext.getString(R.string.repo_install_title, repo.getName()))
-                    .setMessage(context.getString(R.string.repo_install_msg, filename))
+                    .setMessage(mContext.getString(R.string.repo_install_msg, filename))
                     .setCancelable(true)
-                    .setPositiveButton(R.string.download_install, (dialogInterface, i) -> Utils.dlAndReceive(
+                    .setPositiveButton(R.string.install, (d, i) -> Utils.dlAndReceive(
-                            context,
+                            mContext,
-                            new RepoDlReceiver(),
+                            new DownloadReceiver() {
+                                @Override
+                                public void onDownloadDone(Uri uri) {
+                                    new ProcessRepoZip(activity, uri, true).exec();
+                                }
+                            },
+                            repo.getZipUrl(),
+                            Utils.getLegalFilename(filename)))
+                    .setNeutralButton(R.string.download, (d, i) -> Utils.dlAndReceive(
+                            mContext,
+                            new DownloadReceiver() {
+                                @Override
+                                public void onDownloadDone(Uri uri) {
+                                    new ProcessRepoZip(activity, uri, false).exec();
+                                }
+                            },
                             repo.getZipUrl(),
                             Utils.getLegalFilename(filename)))
                     .setNegativeButton(R.string.no_thanks, null)
                     .show();
         });
-        holder.authorLink.setOnClickListener(view -> {
-            if (!TextUtils.isEmpty(repo.getDonateUrl())) {
-                context.startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse(repo.getDonateUrl())));
-            }
-        });
-        holder.supportLink.setOnClickListener(view -> {
-            if (!TextUtils.isEmpty(repo.getSupportUrl())) {
-                context.startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse(repo.getSupportUrl())));
-            }
-        });
     }
 
     @Override
@@ -124,97 +110,12 @@ public class ReposAdapter extends RecyclerView.Adapter<ReposAdapter.ViewHolder>
         @BindView(R.id.version_name) TextView versionName;
         @BindView(R.id.description) TextView description;
         @BindView(R.id.author) TextView author;
-        @BindView(R.id.expand_layout) LinearLayout expandLayout;
+        @BindView(R.id.info_layout) LinearLayout infoLayout;
-        @BindView(R.id.update) ImageView updateImage;
+        @BindView(R.id.download) ImageView downloadImage;
-        @BindView(R.id.changeLog) ImageView changeLog;
-        @BindView(R.id.authorLink) ImageView authorLink;
-        @BindView(R.id.supportLink) ImageView supportLink;
-
-        private ValueAnimator mAnimator;
-        private ObjectAnimator animY2;
-        private boolean mExpanded = false;
-        private static int expandHeight = 0;
 
         ViewHolder(View itemView) {
             super(itemView);
             ButterKnife.bind(this, itemView);
-            expandLayout.getViewTreeObserver().addOnPreDrawListener(
-                    new ViewTreeObserver.OnPreDrawListener() {
-
-                        @Override
-                        public boolean onPreDraw() {
-                            if (expandHeight == 0) {
-                                final int widthSpec = View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED);
-                                final int heightSpec = View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED);
-                                expandLayout.measure(widthSpec, heightSpec);
-                                expandHeight = expandLayout.getMeasuredHeight();
-                            }
-
-                            expandLayout.getViewTreeObserver().removeOnPreDrawListener(this);
-                            expandLayout.setVisibility(View.GONE);
-                            mAnimator = slideAnimator(0, expandHeight);
-                            animY2 = ObjectAnimator.ofFloat(updateImage, "translationY", expandHeight / 2);
-                            return true;
-                        }
-
-                    });
-        }
-
-        private void setExpanded(boolean expanded) {
-            mExpanded = expanded;
-            ViewGroup.LayoutParams layoutParams = expandLayout.getLayoutParams();
-            layoutParams.height = expanded ? expandHeight : 0;
-            expandLayout.setLayoutParams(layoutParams);
-            expandLayout.setVisibility(expanded ? View.VISIBLE : View.GONE);
-            if (expanded) {
-                updateImage.setTranslationY(expandHeight / 2);
-            } else {
-                updateImage.setTranslationY(0);
-            }
-        }
-
-        private void expand() {
-            expandLayout.setVisibility(View.VISIBLE);
-            mAnimator.start();
-            animY2.start();
-            mExpanded = true;
-        }
-
-        private void collapse() {
-            if (!mExpanded) return;
-            int finalHeight = expandLayout.getHeight();
-            ValueAnimator mAnimator = slideAnimator(finalHeight, 0);
-            mAnimator.addListener(new Animator.AnimatorListener() {
-                @Override
-                public void onAnimationEnd(Animator animator) {
-                    expandLayout.setVisibility(View.GONE);
-                }
-
-                @Override
-                public void onAnimationStart(Animator animator) {}
-
-                @Override
-                public void onAnimationCancel(Animator animator) {}
-
-                @Override
-                public void onAnimationRepeat(Animator animator) {}
-            });
-            mAnimator.start();
-            animY2.reverse();
-            mExpanded = false;
-        }
-
-        private ValueAnimator slideAnimator(int start, int end) {
-
-            ValueAnimator animator = ValueAnimator.ofInt(start, end);
-
-            animator.addUpdateListener(valueAnimator -> {
-                int value = (Integer) valueAnimator.getAnimatedValue();
-                ViewGroup.LayoutParams layoutParams = expandLayout.getLayoutParams();
-                layoutParams.height = value;
-                expandLayout.setLayoutParams(layoutParams);
-            });
-            return animator;
         }
 
     }

app/src/main/java/com/topjohnwu/magisk/adapters/SuLogAdapter.java

@@ -109,7 +109,9 @@ public class SuLogAdapter {
         @Override
         public void onBindGroupViewHolder(LogGroupViewHolder holder, int flatPosition, ExpandableGroup group) {
             holder.date.setText(group.getTitle());
-            if (isGroupExpanded(flatPosition)) holder.expand();
+            if (isGroupExpanded(flatPosition)) {
+                holder.expand();
+            }
         }
     }
 

app/src/main/java/com/topjohnwu/magisk/asyncs/CheckUpdates.java

@@ -0,0 +1,72 @@
+package com.topjohnwu.magisk.asyncs;
+
+import android.app.NotificationManager;
+import android.app.PendingIntent;
+import android.content.Context;
+import android.content.Intent;
+import android.support.v4.app.TaskStackBuilder;
+import android.support.v7.app.NotificationCompat;
+
+import com.topjohnwu.magisk.MagiskManager;
+import com.topjohnwu.magisk.R;
+import com.topjohnwu.magisk.SplashActivity;
+import com.topjohnwu.magisk.utils.Utils;
+import com.topjohnwu.magisk.utils.WebService;
+
+import org.json.JSONException;
+import org.json.JSONObject;
+
+public class CheckUpdates extends ParallelTask<Void, Void, Void> {
+
+    private static final String UPDATE_JSON = "https://raw.githubusercontent.com/topjohnwu/MagiskManager/updates/magisk_update.json";
+    private static final int NOTIFICATION_ID = 1;
+
+    private boolean showNotification = false;
+
+    public CheckUpdates(Context context, boolean b) {
+        this(context);
+        showNotification = b;
+    }
+
+    public CheckUpdates(Context context) {
+        magiskManager = Utils.getMagiskManager(context);
+    }
+
+    @Override
+    protected Void doInBackground(Void... voids) {
+        String jsonStr = WebService.request(UPDATE_JSON, WebService.GET);
+        try {
+            JSONObject json = new JSONObject(jsonStr);
+            JSONObject magisk = json.getJSONObject("magisk");
+            magiskManager.remoteMagiskVersion = magisk.getDouble("versionCode");
+            magiskManager.magiskLink = magisk.getString("link");
+            magiskManager.releaseNoteLink = magisk.getString("note");
+        } catch (JSONException ignored) {
+        }
+        return null;
+    }
+
+    @Override
+    protected void onPostExecute(Void v) {
+        if (magiskManager.magiskVersion < magiskManager.remoteMagiskVersion
+                && showNotification && magiskManager.updateNotification) {
+            NotificationCompat.Builder builder = new NotificationCompat.Builder(magiskManager);
+            builder.setSmallIcon(R.drawable.ic_magisk)
+                    .setContentTitle(magiskManager.getString(R.string.magisk_update_title))
+                    .setContentText(magiskManager.getString(R.string.magisk_update_available, magiskManager.remoteMagiskVersion))
+                    .setVibrate(new long[]{0, 100, 100, 100})
+                    .setAutoCancel(true);
+            Intent intent = new Intent(magiskManager, SplashActivity.class);
+            intent.putExtra(MagiskManager.INTENT_SECTION, "install");
+            TaskStackBuilder stackBuilder = TaskStackBuilder.create(magiskManager);
+            stackBuilder.addParentStack(SplashActivity.class);
+            stackBuilder.addNextIntent(intent);
+            PendingIntent pendingIntent = stackBuilder.getPendingIntent(NOTIFICATION_ID, PendingIntent.FLAG_UPDATE_CURRENT);
+            builder.setContentIntent(pendingIntent);
+            NotificationManager notificationManager =
+                    (NotificationManager) magiskManager.getSystemService(Context.NOTIFICATION_SERVICE);
+            notificationManager.notify(NOTIFICATION_ID, builder.build());
+        }
+        magiskManager.updateCheckDone.trigger();
+    }
+}

app/src/main/java/com/topjohnwu/magisk/asyncs/FlashZip.java

@@ -0,0 +1,154 @@
+package com.topjohnwu.magisk.asyncs;
+
+import android.app.Activity;
+import android.app.ProgressDialog;
+import android.net.Uri;
+import android.widget.Toast;
+
+import com.topjohnwu.magisk.MagiskManager;
+import com.topjohnwu.magisk.R;
+import com.topjohnwu.magisk.components.AlertDialogBuilder;
+import com.topjohnwu.magisk.utils.Logger;
+import com.topjohnwu.magisk.utils.Shell;
+import com.topjohnwu.magisk.utils.Utils;
+import com.topjohnwu.magisk.utils.ZipUtils;
+
+import java.io.File;
+import java.io.FileNotFoundException;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.util.List;
+
+public class FlashZip extends SerialTask<Void, String, Integer> {
+
+    private Uri mUri;
+    private File mCachedFile, mScriptFile, mCheckFile;
+
+    private String mFilename;
+    private ProgressDialog progress;
+
+    public FlashZip(Activity context, Uri uri) {
+        super(context);
+        mUri = uri;
+
+        mCachedFile = new File(magiskManager.getCacheDir(), "install.zip");
+        mScriptFile = new File(magiskManager.getCacheDir(), "/META-INF/com/google/android/update-binary");
+        mCheckFile = new File(mScriptFile.getParent(), "updater-script");
+
+        // Try to get the filename ourselves
+        mFilename = Utils.getNameFromUri(magiskManager, mUri);
+    }
+
+    private void copyToCache() throws Throwable {
+        publishProgress(magiskManager.getString(R.string.copying_msg));
+
+        if (mCachedFile.exists() && !mCachedFile.delete()) {
+            Logger.error("FlashZip: Error while deleting already existing file");
+            throw new IOException();
+        }
+        try (
+                InputStream in = magiskManager.getContentResolver().openInputStream(mUri);
+                OutputStream outputStream = new FileOutputStream(mCachedFile)
+        ) {
+            byte buffer[] = new byte[1024];
+            int length;
+            if (in == null) throw new FileNotFoundException();
+            while ((length = in.read(buffer)) > 0)
+                outputStream.write(buffer, 0, length);
+
+            Logger.dev("FlashZip: File created successfully - " + mCachedFile.getPath());
+        } catch (FileNotFoundException e) {
+            Logger.error("FlashZip: Invalid Uri");
+            throw e;
+        } catch (IOException e) {
+            Logger.error("FlashZip: Error in creating file");
+            throw e;
+        }
+    }
+
+    protected boolean unzipAndCheck() throws Exception {
+        ZipUtils.unzip(mCachedFile, mCachedFile.getParentFile(), "META-INF/com/google/android");
+        List<String> ret;
+        ret = Utils.readFile(mCheckFile.getPath());
+        return Utils.isValidShellResponse(ret) && ret.get(0).contains("#MAGISK");
+    }
+
+    private int cleanup(int ret) {
+        Shell.su(
+                "rm -rf " + mCachedFile.getParent() + "/*",
+                "rm -rf " + MagiskManager.TMP_FOLDER_PATH
+        );
+        return ret;
+    }
+
+    @Override
+    protected void onPreExecute() {
+        progress = new ProgressDialog(activity);
+        progress.setTitle(R.string.zip_install_progress_title);
+        progress.show();
+    }
+
+    @Override
+    protected void onProgressUpdate(String... values) {
+        progress.setMessage(values[0]);
+    }
+
+    @Override
+    protected Integer doInBackground(Void... voids) {
+        Logger.dev("FlashZip Running... " + mFilename);
+        List<String> ret;
+        try {
+            copyToCache();
+            if (!unzipAndCheck()) return cleanup(0);
+            publishProgress(magiskManager.getString(R.string.zip_install_progress_msg, mFilename));
+            ret = Shell.su(
+                    "BOOTMODE=true sh " + mScriptFile + " dummy 1 " + mCachedFile,
+                    "if [ $? -eq 0 ]; then echo true; else echo false; fi"
+            );
+            if (!Utils.isValidShellResponse(ret)) return -1;
+            Logger.dev("FlashZip: Console log:");
+            for (String line : ret) {
+                Logger.dev(line);
+            }
+            if (Boolean.parseBoolean(ret.get(ret.size() - 1)))
+                return cleanup(1);
+
+        } catch (Throwable e) {
+            e.printStackTrace();
+        }
+        return cleanup(-1);
+    }
+
+    // -1 = error, manual install; 0 = invalid zip; 1 = success
+    @Override
+    protected void onPostExecute(Integer result) {
+        super.onPostExecute(result);
+        progress.dismiss();
+        switch (result) {
+            case -1:
+                Toast.makeText(magiskManager, magiskManager.getString(R.string.install_error), Toast.LENGTH_LONG).show();
+                Utils.showUriSnack(activity, mUri);
+                break;
+            case 0:
+                Toast.makeText(magiskManager, magiskManager.getString(R.string.invalid_zip), Toast.LENGTH_LONG).show();
+                break;
+            case 1:
+                onSuccess();
+                break;
+        }
+    }
+
+    protected void onSuccess() {
+        magiskManager.updateCheckDone.trigger();
+        new LoadModules(activity).exec();
+
+        new AlertDialogBuilder(activity)
+                .setTitle(R.string.reboot_title)
+                .setMessage(R.string.reboot_msg)
+                .setPositiveButton(R.string.reboot, (dialogInterface, i) -> Shell.su(true, "reboot"))
+                .setNegativeButton(R.string.no_thanks, null)
+                .show();
+    }
+}

app/src/main/java/com/topjohnwu/magisk/asyncs/GetBootBlocks.java

@@ -0,0 +1,27 @@
+package com.topjohnwu.magisk.asyncs;
+
+import android.app.Activity;
+
+import com.topjohnwu.magisk.utils.Shell;
+import com.topjohnwu.magisk.utils.Utils;
+
+public class GetBootBlocks extends SerialTask<Void, Void, Void> {
+
+    public GetBootBlocks(Activity context) {
+        super(context);
+    }
+
+    @Override
+    protected Void doInBackground(Void... params) {
+        magiskManager.blockList = Shell.su("ls /dev/block | grep mmc");
+        if (magiskManager.bootBlock == null) {
+            magiskManager.bootBlock = Utils.detectBootImage();
+        }
+        return null;
+    }
+
+    @Override
+    protected void onPostExecute(Void v) {
+        magiskManager.blockDetectionDone.trigger();
+    }
+}

app/src/main/java/com/topjohnwu/magisk/asyncs/LoadApps.java

@@ -0,0 +1,39 @@
+package com.topjohnwu.magisk.asyncs;
+
+import android.app.Activity;
+import android.content.pm.ApplicationInfo;
+import android.content.pm.PackageManager;
+
+import com.topjohnwu.magisk.adapters.ApplicationAdapter;
+
+import java.util.Collections;
+import java.util.Iterator;
+import java.util.List;
+
+public class LoadApps extends ParallelTask<Void, Void, Void> {
+
+    public LoadApps(Activity context) {
+        super(context);
+    }
+
+    @Override
+    protected Void doInBackground(Void... voids) {
+        PackageManager pm = magiskManager.getPackageManager();
+        List<ApplicationInfo> list = pm.getInstalledApplications(0);
+        for (Iterator<ApplicationInfo> i = list.iterator(); i.hasNext(); ) {
+            ApplicationInfo info = i.next();
+            if (ApplicationAdapter.BLACKLIST.contains(info.packageName) || !info.enabled) {
+                i.remove();
+            }
+        }
+        Collections.sort(list, (a, b) -> a.loadLabel(pm).toString().toLowerCase()
+                .compareTo(b.loadLabel(pm).toString().toLowerCase()));
+        magiskManager.appList = Collections.unmodifiableList(list);
+        return null;
+    }
+
+    @Override
+    protected void onPostExecute(Void v) {
+        new MagiskHide(activity).list();
+    }
+}

app/src/main/java/com/topjohnwu/magisk/asyncs/LoadModules.java

@@ -0,0 +1,41 @@
+package com.topjohnwu.magisk.asyncs;
+
+import android.app.Activity;
+
+import com.topjohnwu.magisk.MagiskManager;
+import com.topjohnwu.magisk.module.BaseModule;
+import com.topjohnwu.magisk.module.Module;
+import com.topjohnwu.magisk.utils.Logger;
+import com.topjohnwu.magisk.utils.Utils;
+import com.topjohnwu.magisk.utils.ValueSortedMap;
+
+public class LoadModules extends SerialTask<Void, Void, Void> {
+
+    public LoadModules(Activity context) {
+        super(context);
+    }
+
+    @Override
+    protected Void doInBackground(Void... voids) {
+        Logger.dev("LoadModules: Loading modules");
+
+        magiskManager.moduleMap = new ValueSortedMap<>();
+
+        for (String path : Utils.getModList(MagiskManager.MAGISK_PATH)) {
+            Logger.dev("LoadModules: Adding modules from " + path);
+            Module module;
+            try {
+                module = new Module(path);
+                magiskManager.moduleMap.put(module.getId(), module);
+            } catch (BaseModule.CacheModException ignored) {}
+        }
+
+        Logger.dev("LoadModules: Data load done");
+        return null;
+    }
+
+    @Override
+    protected void onPostExecute(Void v) {
+        magiskManager.moduleLoadDone.trigger();
+    }
+}