bump version v1.11.7

and refactor displayAmount

.circleci/config.yml

@@ -3,11 +3,13 @@ jobs:
   build:
     working_directory: ~/code
     docker:
-      - image: bitriseio/android-ndk
+      - image: circleci/android:api-28-ndk
     environment:
       JVM_OPTS: -Xmx3200m
     steps:
       - checkout
+      - run: yes | sdkmanager --licenses || exit 0
+      - run: yes | sdkmanager --update || exit 0
       - restore_cache:
           key: jars-{{ checksum "build.gradle" }}-{{ checksum  "app/build.gradle" }}
       - run:

.idea/.gitignore

@@ -1,3 +0,0 @@
-workspace.xml
-markdown-*
-misc.xml

.idea/.name

@@ -1 +0,0 @@
-xmrwallet

.idea/compiler.xml

@@ -1,22 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="CompilerConfiguration">
-    <resourceExtensions />
-    <wildcardResourcePatterns>
-      <entry name="!?*.java" />
-      <entry name="!?*.form" />
-      <entry name="!?*.class" />
-      <entry name="!?*.groovy" />
-      <entry name="!?*.scala" />
-      <entry name="!?*.flex" />
-      <entry name="!?*.kt" />
-      <entry name="!?*.clj" />
-      <entry name="!?*.aj" />
-    </wildcardResourcePatterns>
-    <annotationProcessing>
-      <profile default="true" name="Default" enabled="false">
-        <processorPath useClasspath="true" />
-      </profile>
-    </annotationProcessing>
-  </component>
-</project>

.idea/copyright/profiles_settings.xml

@@ -1,3 +0,0 @@
-<component name="CopyrightManager">
-  <settings default="" />
-</component>

.idea/gradle.xml

@@ -1,19 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="GradleSettings">
-    <option name="linkedExternalProjectsSettings">
-      <GradleProjectSettings>
-        <option name="disableWrapperSourceDistributionNotification" value="true" />
-        <option name="distributionType" value="DEFAULT_WRAPPED" />
-        <option name="externalProjectPath" value="$PROJECT_DIR$" />
-        <option name="modules">
-          <set>
-            <option value="$PROJECT_DIR$" />
-            <option value="$PROJECT_DIR$/app" />
-          </set>
-        </option>
-        <option name="resolveModulePerSourceSet" value="false" />
-      </GradleProjectSettings>
-    </option>
-  </component>
-</project>

.idea/modules.xml

@@ -1,9 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="ProjectModuleManager">
-    <modules>
-      <module fileurl="file://$PROJECT_DIR$/app/app.iml" filepath="$PROJECT_DIR$/app/app.iml" />
-      <module fileurl="file://$PROJECT_DIR$/xmrwallet.iml" filepath="$PROJECT_DIR$/xmrwallet.iml" />
-    </modules>
-  </component>
-</project>

.idea/runConfigurations.xml

@@ -1,12 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="RunConfigurationProducerService">
-    <option name="ignoredProducers">
-      <set>
-        <option value="org.jetbrains.plugins.gradle.execution.test.runner.AllInPackageGradleConfigurationProducer" />
-        <option value="org.jetbrains.plugins.gradle.execution.test.runner.TestClassGradleConfigurationProducer" />
-        <option value="org.jetbrains.plugins.gradle.execution.test.runner.TestMethodGradleConfigurationProducer" />
-      </set>
-    </option>
-  </component>
-</project>

.idea/vcs.xml

@@ -1,6 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="VcsDirectoryMappings">
-    <mapping directory="$PROJECT_DIR$" vcs="Git" />
-  </component>
-</project>

app/build.gradle

@@ -7,8 +7,8 @@ android {
         applicationId "com.m2049r.xmrwallet"
         minSdkVersion 21
         targetSdkVersion 28
-        versionCode 164
-        versionName "1.10.14 'Node-O-matiC'"
+        versionCode 177
+        versionName "1.11.7 'Chernushka'"
 
         testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
         externalNativeBuild {
@@ -115,6 +115,10 @@ dependencies {
     implementation 'org.slf4j:slf4j-nop:1.7.25'
     implementation 'com.github.brnunes:swipeablerecyclerview:1.0.2'
 
+    // https://mvnrepository.com/artifact/com.github.aelstad/keccakj
+    implementation 'com.github.aelstad:keccakj:1.1.0'
+
+
     testImplementation "junit:junit:$rootProject.ext.junitVersion"
     testImplementation "org.mockito:mockito-all:$rootProject.ext.mockitoVersion"
     testImplementation "com.squareup.okhttp3:mockwebserver:$rootProject.ext.okHttpVersion"

app/src/main/AndroidManifest.xml

@@ -26,14 +26,14 @@
             android:configChanges="orientation|keyboardHidden"
             android:label="@string/wallet_activity_name"
             android:launchMode="singleTask"
-            android:screenOrientation="portrait" />
+            android:screenOrientation="behind" />
 
         <activity
             android:name=".LoginActivity"
             android:configChanges="orientation|keyboardHidden"
             android:label="@string/app_name"
             android:launchMode="singleTop"
-            android:screenOrientation="portrait">
+            android:screenOrientation="locked">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
                 <category android:name="android.intent.category.LAUNCHER" />
@@ -42,6 +42,22 @@
                 <action android:name="android.hardware.usb.action.USB_DEVICE_ATTACHED" />
             </intent-filter>
 
+            <intent-filter android:label="@string/app_name">
+                <action android:name="android.intent.action.VIEW" />
+                <data android:scheme="monero" />
+
+                <category android:name="android.intent.category.DEFAULT" />
+                <category android:name="android.intent.category.BROWSABLE" />
+            </intent-filter>
+
+            <intent-filter android:label="@string/app_name">
+                <action android:name="android.intent.action.VIEW" />
+                <data android:scheme="bitcoin" />
+
+                <category android:name="android.intent.category.DEFAULT" />
+                <category android:name="android.intent.category.BROWSABLE" />
+            </intent-filter>
+
             <meta-data
                 android:name="android.hardware.usb.action.USB_DEVICE_ATTACHED"
                 android:resource="@xml/usb_device_filter" />
@@ -52,5 +68,15 @@
             android:description="@string/service_description"
             android:exported="false"
             android:label="Monero Wallet Service" />
+
+        <provider
+            android:name="android.support.v4.content.FileProvider"
+            android:authorities="${applicationId}.fileprovider"
+            android:exported="false"
+            android:grantUriPermissions="true">
+            <meta-data
+                android:name="android.support.FILE_PROVIDER_PATHS"
+                android:resource="@xml/filepaths" />
+        </provider>
     </application>
 </manifest>

app/src/main/cpp/monerujo.h

@@ -60,14 +60,14 @@ enum {
     HASH_DATA_AREA = 136
 };
 
-void cn_slow_hash(const void *data, size_t length, char *hash, int variant, int prehashed);
+void cn_slow_hash(const void *data, size_t length, char *hash, int variant, int prehashed, uint64_t height);
 
 inline void slow_hash(const void *data, const size_t length, char *hash) {
-    cn_slow_hash(data, length, hash, 0 /* variant */, 0/*prehashed*/);
+    cn_slow_hash(data, length, hash, 0 /*variant*/, 0 /*prehashed*/, 0 /*height*/);
 }
 
 inline void slow_hash_broken(const void *data, char *hash, int variant) {
-    cn_slow_hash(data, 200 /*sizeof(union hash_state)*/, hash, variant, 1 /*prehashed*/);
+    cn_slow_hash(data, 200 /*sizeof(union hash_state)*/, hash, variant, 1 /*prehashed*/, 0 /*height*/);
 }
 
 #ifdef __cplusplus

app/src/main/java/com/m2049r/levin/util/LevinReader.java

@@ -173,10 +173,10 @@ public class LevinReader {
 
     // this should be in LittleEndianDataInputStream because it has little
     // endian logic
-    private long readRest(int firstByte, int bytes) throws IOException {
+    private long readRest(final int firstByte, final int bytes) throws IOException {
         long result = firstByte;
-        for (int i = 0; i < bytes; i++) {
-            result = result + (in.readUnsignedByte() << 8);
+        for (int i = 1; i < bytes + 1; i++) {
+            result = result + (((long) in.readUnsignedByte()) << (8 * i));
         }
         return result;
     }

app/src/main/java/com/m2049r/xmrwallet/GenerateFragment.java

@@ -16,6 +16,7 @@
 
 package com.m2049r.xmrwallet;
 
+import android.app.Activity;
 import android.app.AlertDialog;
 import android.content.Context;
 import android.content.DialogInterface;
@@ -33,6 +34,7 @@ import android.view.Menu;
 import android.view.MenuInflater;
 import android.view.View;
 import android.view.ViewGroup;
+import android.view.WindowManager;
 import android.view.inputmethod.EditorInfo;
 import android.widget.Button;
 import android.widget.LinearLayout;
@@ -45,6 +47,7 @@ import com.m2049r.xmrwallet.util.FingerprintHelper;
 import com.m2049r.xmrwallet.util.Helper;
 import com.m2049r.xmrwallet.util.KeyStoreHelper;
 import com.m2049r.xmrwallet.util.RestoreHeight;
+import com.m2049r.xmrwallet.util.ledger.Monero;
 import com.m2049r.xmrwallet.widget.Toolbar;
 import com.nulabinc.zxcvbn.Strength;
 import com.nulabinc.zxcvbn.Zxcvbn;
@@ -95,7 +98,6 @@ public class GenerateFragment extends Fragment {
         etWalletRestoreHeight = view.findViewById(R.id.etWalletRestoreHeight);
         bGenerate = view.findViewById(R.id.bGenerate);
 
-        etWalletMnemonic.getEditText().setRawInputType(InputType.TYPE_CLASS_TEXT);
         etWalletAddress.getEditText().setRawInputType(InputType.TYPE_TEXT_FLAG_NO_SUGGESTIONS);
         etWalletViewKey.getEditText().setRawInputType(InputType.TYPE_TEXT_FLAG_NO_SUGGESTIONS);
         etWalletSpendKey.getEditText().setRawInputType(InputType.TYPE_TEXT_FLAG_NO_SUGGESTIONS);
@@ -241,9 +243,7 @@ public class GenerateFragment extends Fragment {
                 }
             });
             etWalletAddress.setVisibility(View.VISIBLE);
-            etWalletAddress.getEditText().setOnEditorActionListener(new TextView.OnEditorActionListener()
-
-            {
+            etWalletAddress.getEditText().setOnEditorActionListener(new TextView.OnEditorActionListener() {
                 public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {
                     if ((event != null && (event.getKeyCode() == KeyEvent.KEYCODE_ENTER) && (event.getAction() == KeyEvent.ACTION_DOWN))
                             || (actionId == EditorInfo.IME_ACTION_NEXT)) {
@@ -275,9 +275,7 @@ public class GenerateFragment extends Fragment {
         }
         if (type.equals(TYPE_KEY)) {
             etWalletSpendKey.setVisibility(View.VISIBLE);
-            etWalletSpendKey.getEditText().setOnEditorActionListener(new TextView.OnEditorActionListener()
-
-            {
+            etWalletSpendKey.getEditText().setOnEditorActionListener(new TextView.OnEditorActionListener() {
                 public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {
                     if ((event != null && (event.getKeyCode() == KeyEvent.KEYCODE_ENTER) && (event.getAction() == KeyEvent.ACTION_DOWN))
                             || (actionId == EditorInfo.IME_ACTION_NEXT)) {
@@ -304,9 +302,7 @@ public class GenerateFragment extends Fragment {
                 }
             });
         }
-        bGenerate.setOnClickListener(new View.OnClickListener()
-
-        {
+        bGenerate.setOnClickListener(new View.OnClickListener() {
             @Override
             public void onClick(View v) {
                 Helper.hideKeyboard(getActivity());
@@ -617,4 +613,80 @@ public class GenerateFragment extends Fragment {
         }
         super.onCreateOptionsMenu(menu, inflater);
     }
+
+    AlertDialog ledgerDialog = null;
+
+    public void convertLedgerSeed() {
+        if (ledgerDialog != null) return;
+        final Activity activity = getActivity();
+        View promptsView = getLayoutInflater().inflate(R.layout.prompt_ledger_seed, null);
+        android.app.AlertDialog.Builder alertDialogBuilder = new android.app.AlertDialog.Builder(activity);
+        alertDialogBuilder.setView(promptsView);
+
+        final TextInputLayout etSeed = promptsView.findViewById(R.id.etSeed);
+        final TextInputLayout etPassphrase = promptsView.findViewById(R.id.etPassphrase);
+
+        etSeed.getEditText().addTextChangedListener(new TextWatcher() {
+            @Override
+            public void afterTextChanged(Editable s) {
+                if (etSeed.getError() != null) {
+                    etSeed.setError(null);
+                }
+            }
+
+            @Override
+            public void beforeTextChanged(CharSequence s, int start,
+                                          int count, int after) {
+            }
+
+            @Override
+            public void onTextChanged(CharSequence s, int start,
+                                      int before, int count) {
+            }
+        });
+
+        alertDialogBuilder
+                .setCancelable(false)
+                .setPositiveButton(getString(R.string.label_ok), null)
+                .setNegativeButton(getString(R.string.label_cancel),
+                        new DialogInterface.OnClickListener() {
+                            public void onClick(DialogInterface dialog, int id) {
+                                Helper.hideKeyboardAlways(activity);
+                                etWalletMnemonic.getEditText().getText().clear();
+                                dialog.cancel();
+                                ledgerDialog = null;
+                            }
+                        });
+
+        ledgerDialog = alertDialogBuilder.create();
+
+        ledgerDialog.setOnShowListener(new DialogInterface.OnShowListener() {
+            @Override
+            public void onShow(DialogInterface dialog) {
+                Button button = ((AlertDialog) dialog).getButton(AlertDialog.BUTTON_POSITIVE);
+                button.setOnClickListener(new View.OnClickListener() {
+                    @Override
+                    public void onClick(View view) {
+                        String ledgerSeed = etSeed.getEditText().getText().toString();
+                        String ledgerPassphrase = etPassphrase.getEditText().getText().toString();
+                        String moneroSeed = Monero.convert(ledgerSeed, ledgerPassphrase);
+                        if (moneroSeed != null) {
+                            etWalletMnemonic.getEditText().setText(moneroSeed);
+                            ledgerDialog.dismiss();
+                            ledgerDialog = null;
+                        } else {
+                            etSeed.setError(getString(R.string.bad_ledger_seed));
+                        }
+                    }
+                });
+            }
+        });
+
+        // set FLAG_SECURE to prevent screenshots in Release Mode
+        if (!(BuildConfig.DEBUG && BuildConfig.FLAVOR_type.equals("alpha"))) {
+            ledgerDialog.getWindow().setFlags(WindowManager.LayoutParams.FLAG_SECURE, WindowManager.LayoutParams.FLAG_SECURE);
+        }
+
+        ledgerDialog.show();
+    }
 }

app/src/main/java/com/m2049r/xmrwallet/GenerateReviewFragment.java

@@ -33,6 +33,7 @@ import android.view.Menu;
 import android.view.MenuInflater;
 import android.view.View;
 import android.view.ViewGroup;
+import android.view.WindowManager;
 import android.view.inputmethod.EditorInfo;
 import android.widget.Button;
 import android.widget.ImageButton;
@@ -620,6 +621,11 @@ public class GenerateReviewFragment extends Fragment {
                 return false;
             }
         });
+        // set FLAG_SECURE to prevent screenshots in Release Mode
+        if (!(BuildConfig.DEBUG && BuildConfig.FLAVOR_type.equals("alpha"))) {
+            openDialog.getWindow().setFlags(WindowManager.LayoutParams.FLAG_SECURE, WindowManager.LayoutParams.FLAG_SECURE);
+        }
+
         return openDialog;
     }
 

app/src/main/java/com/m2049r/xmrwallet/LoginActivity.java

@@ -269,7 +269,11 @@ public class LoginActivity extends BaseActivity
         } else {
             Timber.i("Waiting for permissions");
         }
-        processUsbIntent(getIntent());
+
+        // try intents
+        Intent intent = getIntent();
+        if (!processUsbIntent(intent))
+            processUriIntent(intent);
     }
 
     boolean checkServiceRunning() {
@@ -716,6 +720,10 @@ public class LoginActivity extends BaseActivity
         intent.putExtra(WalletActivity.REQUEST_PW, walletPassword);
         intent.putExtra(WalletActivity.REQUEST_FINGERPRINT_USED, fingerprintUsed);
         intent.putExtra(WalletActivity.REQUEST_STREETMODE, streetmode);
+        if (uri != null) {
+            intent.putExtra(WalletActivity.REQUEST_URI, uri);
+            uri = null; // use only once
+        }
         startActivity(intent);
     }
 
@@ -921,8 +929,11 @@ public class LoginActivity extends BaseActivity
 
                     @Override
                     public boolean createWallet(File aFile, String password) {
+                        NodeInfo currentNode = getNode();
+                        final long restoreHeight =
+                                (currentNode != null) ? currentNode.getHeight() - 20 : -1;
                         Wallet newWallet = WalletManager.getInstance()
-                                .createWallet(aFile, password, MNEMONIC_LANGUAGE);
+                                .createWallet(aFile, password, MNEMONIC_LANGUAGE, restoreHeight);
                         boolean success = (newWallet.getStatus() == Wallet.Status.Status_Ok);
                         if (!success) {
                             Timber.e(newWallet.getErrorString());
@@ -1221,6 +1232,12 @@ public class LoginActivity extends BaseActivity
             case R.id.action_language:
                 onChangeLocale();
                 return true;
+            case R.id.action_ledger_seed:
+                Fragment f = getSupportFragmentManager().findFragmentById(R.id.fragment_container);
+                if (f instanceof GenerateFragment) {
+                    ((GenerateFragment) f).convertLedgerSeed();
+                }
+                return true;
             default:
                 return super.onOptionsItemSelected(item);
         }
@@ -1353,30 +1370,31 @@ public class LoginActivity extends BaseActivity
     };
 
     private void connectLedger(UsbManager usbManager, final UsbDevice usbDevice) {
-        try {
-            Ledger.connect(usbManager, usbDevice);
-            registerDetachReceiver();
-            onLedgerAction();
-            runOnUiThread(new Runnable() {
-                @Override
-                public void run() {
-                    Toast.makeText(LoginActivity.this,
-                            getString(R.string.toast_ledger_attached, usbDevice.getProductName()),
-                            Toast.LENGTH_SHORT)
-                            .show();
-                }
-            });
-        } catch (IOException ex) {
-            runOnUiThread(new Runnable() {
-                @Override
-                public void run() {
-                    Toast.makeText(LoginActivity.this,
-                            getString(R.string.open_wallet_ledger_missing),
-                            Toast.LENGTH_SHORT)
-                            .show();
-                }
-            });
-        }
+        if (Ledger.ENABLED)
+            try {
+                Ledger.connect(usbManager, usbDevice);
+                registerDetachReceiver();
+                onLedgerAction();
+                runOnUiThread(new Runnable() {
+                    @Override
+                    public void run() {
+                        Toast.makeText(LoginActivity.this,
+                                getString(R.string.toast_ledger_attached, usbDevice.getProductName()),
+                                Toast.LENGTH_SHORT)
+                                .show();
+                    }
+                });
+            } catch (IOException ex) {
+                runOnUiThread(new Runnable() {
+                    @Override
+                    public void run() {
+                        Toast.makeText(LoginActivity.this,
+                                getString(R.string.open_wallet_ledger_missing),
+                                Toast.LENGTH_SHORT)
+                                .show();
+                    }
+                });
+            }
     }
 
     @Override
@@ -1385,7 +1403,7 @@ public class LoginActivity extends BaseActivity
         processUsbIntent(intent);
     }
 
-    private void processUsbIntent(Intent intent) {
+    private boolean processUsbIntent(Intent intent) {
         String action = intent.getAction();
         if (UsbManager.ACTION_USB_DEVICE_ATTACHED.equals(action)) {
             synchronized (this) {
@@ -1398,6 +1416,21 @@ public class LoginActivity extends BaseActivity
                     }
                 }
             }
+            return true;
+        }
+        return false;
+    }
+
+    private String uri = null;
+
+    private void processUriIntent(Intent intent) {
+        String action = intent.getAction();
+        if (Intent.ACTION_VIEW.equals(action)) {
+            synchronized (this) {
+                uri = intent.getDataString();
+                Timber.d("URI Intent %s", uri);
+                HelpFragment.display(getSupportFragmentManager(), R.string.help_uri);
+            }
         }
     }
 

app/src/main/java/com/m2049r/xmrwallet/LoginFragment.java

@@ -440,7 +440,7 @@ public class LoginFragment extends Fragment implements WalletInfoAdapter.OnInter
             Collections.sort(nodesToTest, NodeInfo.BestNodeComparator);
             NodeInfo bestNode = nodesToTest.get(0);
             if (bestNode.isValid())
-                return nodesToTest.get(0);
+                return bestNode;
             else
                 return null;
         }

app/src/main/java/com/m2049r/xmrwallet/NodeFragment.java

@@ -32,6 +32,7 @@ import android.view.Menu;
 import android.view.MenuInflater;
 import android.view.View;
 import android.view.ViewGroup;
+import android.view.WindowManager;
 import android.view.inputmethod.EditorInfo;
 import android.widget.Button;
 import android.widget.TextView;
@@ -505,6 +506,10 @@ public class NodeFragment extends Fragment
                     });
                 }
             });
+            // set FLAG_SECURE to prevent screenshots in Release Mode
+            if (!(BuildConfig.DEBUG && BuildConfig.FLAVOR_type.equals("alpha"))) {
+                editDialog.getWindow().setFlags(WindowManager.LayoutParams.FLAG_SECURE, WindowManager.LayoutParams.FLAG_SECURE);
+            }
 
             etNodePass.getEditText().setOnEditorActionListener(new TextView.OnEditorActionListener() {
                 public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {

app/src/main/java/com/m2049r/xmrwallet/ReceiveFragment.java

@@ -17,19 +17,28 @@
 package com.m2049r.xmrwallet;
 
 import android.content.Context;
+import android.content.Intent;
 import android.graphics.Bitmap;
 import android.graphics.Canvas;
 import android.graphics.drawable.BitmapDrawable;
+import android.net.Uri;
 import android.nfc.NfcManager;
 import android.os.AsyncTask;
 import android.os.Bundle;
+import android.support.annotation.Nullable;
 import android.support.design.widget.TextInputLayout;
 import android.support.v4.app.Fragment;
+import android.support.v4.content.FileProvider;
+import android.support.v4.view.MenuItemCompat;
+import android.support.v7.widget.ShareActionProvider;
 import android.text.Editable;
 import android.text.InputType;
 import android.text.TextWatcher;
 import android.view.KeyEvent;
 import android.view.LayoutInflater;
+import android.view.Menu;
+import android.view.MenuInflater;
+import android.view.MenuItem;
 import android.view.View;
 import android.view.ViewGroup;
 import android.view.inputmethod.EditorInfo;
@@ -56,6 +65,9 @@ import com.m2049r.xmrwallet.util.MoneroThreadPoolExecutor;
 import com.m2049r.xmrwallet.widget.ExchangeView;
 import com.m2049r.xmrwallet.widget.Toolbar;
 
+import java.io.File;
+import java.io.FileOutputStream;
+import java.io.IOException;
 import java.util.HashMap;
 import java.util.Map;
 
@@ -69,8 +81,8 @@ public class ReceiveFragment extends Fragment {
     private TextInputLayout etNotes;
     private ExchangeView evAmount;
     private TextView tvQrCode;
-    private ImageView qrCode;
-    private ImageView qrCodeFull;
+    private ImageView ivQrCode;
+    private ImageView ivQrCodeFull;
     private EditText etDummy;
     private ImageButton bCopyAddress;
     private Button bSubaddress;
@@ -97,9 +109,9 @@ public class ReceiveFragment extends Fragment {
         tvAddress = view.findViewById(R.id.tvAddress);
         etNotes = view.findViewById(R.id.etNotes);
         evAmount = view.findViewById(R.id.evAmount);
-        qrCode = view.findViewById(R.id.qrCode);
+        ivQrCode = view.findViewById(R.id.qrCode);
         tvQrCode = view.findViewById(R.id.tvQrCode);
-        qrCodeFull = view.findViewById(R.id.qrCodeFull);
+        ivQrCodeFull = view.findViewById(R.id.qrCodeFull);
         etDummy = view.findViewById(R.id.etDummy);
         bCopyAddress = view.findViewById(R.id.bCopyAddress);
         bSubaddress = view.findViewById(R.id.bSubaddress);
@@ -178,25 +190,25 @@ public class ReceiveFragment extends Fragment {
             }
         });
 
-        qrCode.setOnClickListener(new View.OnClickListener() {
+        ivQrCode.setOnClickListener(new View.OnClickListener() {
             @Override
             public void onClick(View v) {
                 Helper.hideKeyboard(getActivity());
                 etDummy.requestFocus();
                 if (qrValid) {
-                    qrCodeFull.setImageBitmap(((BitmapDrawable) qrCode.getDrawable()).getBitmap());
-                    qrCodeFull.setVisibility(View.VISIBLE);
+                    ivQrCodeFull.setImageBitmap(((BitmapDrawable) ivQrCode.getDrawable()).getBitmap());
+                    ivQrCodeFull.setVisibility(View.VISIBLE);
                 } else {
                     evAmount.doExchange();
                 }
             }
         });
 
-        qrCodeFull.setOnClickListener(new View.OnClickListener() {
+        ivQrCodeFull.setOnClickListener(new View.OnClickListener() {
             @Override
             public void onClick(View v) {
-                qrCodeFull.setImageBitmap(null);
-                qrCodeFull.setVisibility(View.GONE);
+                ivQrCodeFull.setImageBitmap(null);
+                ivQrCodeFull.setVisibility(View.GONE);
             }
         });
 
@@ -228,6 +240,81 @@ public class ReceiveFragment extends Fragment {
         return view;
     }
 
+    @Override
+    public void onCreate(@Nullable Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setHasOptionsMenu(true);
+    }
+
+    private ShareActionProvider shareActionProvider;
+
+    @Override
+    public void onCreateOptionsMenu(Menu menu, final MenuInflater inflater) {
+        inflater.inflate(R.menu.receive_menu, menu);
+        super.onCreateOptionsMenu(menu, inflater);
+
+        // Locate MenuItem with ShareActionProvider
+        MenuItem item = menu.findItem(R.id.menu_item_share);
+
+        // Fetch and store ShareActionProvider
+        shareActionProvider = (ShareActionProvider) MenuItemCompat.getActionProvider(item);
+
+        shareActionProvider.setOnShareTargetSelectedListener(new ShareActionProvider.OnShareTargetSelectedListener() {
+            @Override
+            public boolean onShareTargetSelected(ShareActionProvider shareActionProvider, Intent intent) {
+                saveQrCode(); // save it only if we need it
+                return false;
+            }
+        });
+    }
+
+    private void setShareIntent() {
+        if (shareActionProvider != null) {
+            if (qrValid) {
+                shareActionProvider.setShareIntent(getShareIntent());
+            } else {
+                shareActionProvider.setShareIntent(null);
+            }
+        }
+    }
+
+    private void saveQrCode() {
+        if (!qrValid) throw new IllegalStateException("trying to save null qr code!");
+
+        File cachePath = new File(getActivity().getCacheDir(), "images");
+        if (!cachePath.exists())
+            if (!cachePath.mkdirs()) throw new IllegalStateException("cannot create images folder");
+        File png = new File(cachePath, "QR.png");
+        try {
+            FileOutputStream stream = new FileOutputStream(png);
+            Bitmap qrBitmap = ((BitmapDrawable) ivQrCode.getDrawable()).getBitmap();
+            qrBitmap.compress(Bitmap.CompressFormat.PNG, 100, stream);
+            stream.close();
+        } catch (IOException ex) {
+            Timber.e(ex);
+            // make sure we don't share an old qr code
+            if (!png.delete()) throw new IllegalStateException("cannot delete old qr code");
+            // if we manage to delete it, the URI points to nothing and the user gets a toast with the error
+        }
+    }
+
+    private Intent getShareIntent() {
+        File imagePath = new File(getActivity().getCacheDir(), "images");
+        File png = new File(imagePath, "QR.png");
+        Uri contentUri = FileProvider.getUriForFile(getActivity(),
+                BuildConfig.APPLICATION_ID + ".fileprovider", png);
+        if (contentUri != null) {
+            Intent shareIntent = new Intent();
+            shareIntent.setAction(Intent.ACTION_SEND);
+            shareIntent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION); // temp permission for receiving app to read this file
+            shareIntent.setDataAndType(contentUri, getActivity().getContentResolver().getType(contentUri));
+            shareIntent.putExtra(Intent.EXTRA_STREAM, contentUri);
+            shareIntent.putExtra(Intent.EXTRA_TEXT, bcData.getUriString());
+            return shareIntent;
+        }
+        return null;
+    }
+
     void enableSubaddressButton(boolean enable) {
         bSubaddress.setEnabled(enable);
         if (enable) {
@@ -242,23 +329,23 @@ public class ReceiveFragment extends Fragment {
         Toast.makeText(getActivity(), getString(R.string.message_copy_address), Toast.LENGTH_SHORT).show();
     }
 
-    boolean qrValid = true;
+    private boolean qrValid = false;
 
     void clearQR() {
         if (qrValid) {
-            qrCode.setImageBitmap(null);
+            ivQrCode.setImageBitmap(null);
             qrValid = false;
+            setShareIntent();
             if (isLoaded)
                 tvQrCode.setVisibility(View.VISIBLE);
         }
     }
 
     void setQR(Bitmap qr) {
-        qrCode.setImageBitmap(qr);
+        ivQrCode.setImageBitmap(qr);
         qrValid = true;
+        setShareIntent();
         tvQrCode.setVisibility(View.GONE);
-        Helper.hideKeyboard(getActivity());
-        etDummy.requestFocus();
     }
 
     @Override
@@ -392,7 +479,7 @@ public class ReceiveFragment extends Fragment {
             return;
         }
         bcData = new BarcodeData(BarcodeData.Asset.XMR, address, null, notes, xmrAmount);
-        int size = Math.min(qrCode.getHeight(), qrCode.getWidth());
+        int size = Math.max(ivQrCode.getWidth(), ivQrCode.getHeight());
         Bitmap qr = generate(bcData.getUriString(), size, size);
         if (qr != null) {
             setQR(qr);
@@ -422,8 +509,8 @@ public class ReceiveFragment extends Fragment {
             Bitmap bitmap = Bitmap.createBitmap(pixels, 0, width, width, height, Bitmap.Config.RGB_565);
             bitmap = addLogo(bitmap);
             return bitmap;
-        } catch (WriterException e) {
-            e.printStackTrace();
+        } catch (WriterException ex) {
+            Timber.e(ex);
         }
         return null;
     }
@@ -487,6 +574,7 @@ public class ReceiveFragment extends Fragment {
     @Override
     public void onPause() {
         Timber.d("onPause()");
+        Helper.hideKeyboard(getActivity());
         super.onPause();
     }
 

app/src/main/java/com/m2049r/xmrwallet/SecureActivity.java

@@ -31,7 +31,7 @@ public abstract class SecureActivity extends AppCompatActivity {
         super.onCreate(savedInstanceState);
 
         // set FLAG_SECURE to prevent screenshots in Release Mode
-        if (!BuildConfig.DEBUG && !BuildConfig.FLAVOR_type.equals("alpha")) {
+        if (!(BuildConfig.DEBUG && BuildConfig.FLAVOR_type.equals("alpha"))) {
             getWindow().setFlags(LayoutParams.FLAG_SECURE, LayoutParams.FLAG_SECURE);
         }
     }

app/src/main/java/com/m2049r/xmrwallet/TxFragment.java

@@ -36,7 +36,7 @@ import com.m2049r.xmrwallet.model.TransactionInfo;
 import com.m2049r.xmrwallet.model.Transfer;
 import com.m2049r.xmrwallet.model.Wallet;
 import com.m2049r.xmrwallet.util.Helper;
-import com.m2049r.xmrwallet.util.UserNotes;
+import com.m2049r.xmrwallet.data.UserNotes;
 import com.m2049r.xmrwallet.widget.Toolbar;
 
 import java.text.SimpleDateFormat;
@@ -71,7 +71,6 @@ public class TxFragment extends Fragment {
     private TextView tvTxFee;
     private TextView tvTxTransfers;
     private TextView etTxNotes;
-    private Button bTxNotes;
 
     // XMRTO stuff
     private View cvXmrTo;
@@ -102,21 +101,9 @@ public class TxFragment extends Fragment {
         tvTxFee = view.findViewById(R.id.tvTxFee);
         tvTxTransfers = view.findViewById(R.id.tvTxTransfers);
         etTxNotes = view.findViewById(R.id.etTxNotes);
-        bTxNotes = view.findViewById(R.id.bTxNotes);
 
         etTxNotes.setRawInputType(InputType.TYPE_CLASS_TEXT);
 
-        bTxNotes.setOnClickListener(new View.OnClickListener() {
-            @Override
-            public void onClick(View v) {
-                info.notes = null; // force reload on next view
-                bTxNotes.setEnabled(false);
-                etTxNotes.setEnabled(false);
-                userNotes.setNote(etTxNotes.getText().toString());
-                activityCallback.onSetNote(info.hash, userNotes.txNotes);
-            }
-        });
-
         tvTxXmrToKey.setOnClickListener(new View.OnClickListener() {
             @Override
             public void onClick(View v) {
@@ -131,14 +118,6 @@ public class TxFragment extends Fragment {
         return view;
     }
 
-    public void onNotesSet(boolean reload) {
-        bTxNotes.setEnabled(true);
-        etTxNotes.setEnabled(true);
-        if (reload) {
-            loadNotes(this.info);
-        }
-    }
-
     void shareTxInfo() {
         if (this.info == null) return;
         StringBuffer sb = new StringBuffer();
@@ -315,7 +294,6 @@ public class TxFragment extends Fragment {
         }
     }
 
-
     @Override
     public void onCreate(@Nullable Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
@@ -337,9 +315,9 @@ public class TxFragment extends Fragment {
 
         String getTxNotes(String hash);
 
-        String getTxAddress(int major, int minor);
+        boolean setTxNotes(String txId, String txNotes);
 
-        void onSetNote(String txId, String notes);
+        String getTxAddress(int major, int minor);
 
         void setToolbarButton(int type);
 
@@ -357,4 +335,16 @@ public class TxFragment extends Fragment {
                     + " must implement Listener");
         }
     }
-}
+
+    @Override
+    public void onPause() {
+        if (!etTxNotes.getText().toString().equals(userNotes.note)) { // notes have changed
+            // save them
+            userNotes.setNote(etTxNotes.getText().toString());
+            info.notes = userNotes.txNotes;
+            activityCallback.setTxNotes(info.hash, info.notes);
+        }
+        Helper.hideKeyboard(getActivity());
+        super.onPause();
+    }
+}

app/src/main/java/com/m2049r/xmrwallet/WalletActivity.java

@@ -47,6 +47,7 @@ import android.widget.Toast;
 
 import com.m2049r.xmrwallet.data.BarcodeData;
 import com.m2049r.xmrwallet.data.TxData;
+import com.m2049r.xmrwallet.data.UserNotes;
 import com.m2049r.xmrwallet.dialog.CreditsFragment;
 import com.m2049r.xmrwallet.dialog.HelpFragment;
 import com.m2049r.xmrwallet.fragment.send.SendAddressWizardFragment;
@@ -59,7 +60,6 @@ import com.m2049r.xmrwallet.model.WalletManager;
 import com.m2049r.xmrwallet.service.WalletService;
 import com.m2049r.xmrwallet.util.Helper;
 import com.m2049r.xmrwallet.util.MoneroThreadPoolExecutor;
-import com.m2049r.xmrwallet.util.UserNotes;
 import com.m2049r.xmrwallet.widget.Toolbar;
 
 import java.util.ArrayList;
@@ -81,6 +81,7 @@ public class WalletActivity extends BaseActivity implements WalletFragment.Liste
     public static final String REQUEST_PW = "pw";
     public static final String REQUEST_FINGERPRINT_USED = "fingerprint";
     public static final String REQUEST_STREETMODE = "streetmode";
+    public static final String REQUEST_URI = "uri";
 
     private NavigationView accountsView;
     private DrawerLayout drawer;
@@ -92,6 +93,8 @@ public class WalletActivity extends BaseActivity implements WalletFragment.Liste
 
     private String password;
 
+    private String uri = null;
+
     private long streetMode = 0;
 
     @Override
@@ -147,8 +150,13 @@ public class WalletActivity extends BaseActivity implements WalletFragment.Liste
         final WalletFragment walletFragment = (WalletFragment)
                 getSupportFragmentManager().findFragmentByTag(WalletFragment.class.getName());
         if (walletFragment != null) walletFragment.resetDismissedTransactions();
-        updateAccountsBalance();
         forceUpdate();
+        runOnUiThread(new Runnable() {
+            @Override
+            public void run() {
+                updateAccountsBalance();
+            }
+        });
     }
 
     @Override
@@ -171,6 +179,11 @@ public class WalletActivity extends BaseActivity implements WalletFragment.Liste
         return getWallet().getUserNote(txId);
     }
 
+    @Override
+    public boolean setTxNotes(String txId, String txNotes) {
+        return getWallet().setUserNote(txId, txNotes);
+    }
+
     @Override
     public String getTxAddress(int major, int minor) {
         return getWallet().getSubaddress(major, minor);
@@ -191,6 +204,7 @@ public class WalletActivity extends BaseActivity implements WalletFragment.Liste
             // we can set the streetmode height AFTER opening the wallet
             requestStreetMode = extras.getBoolean(REQUEST_STREETMODE);
             password = extras.getString(REQUEST_PW);
+            uri = extras.getString(REQUEST_URI);
             connectWalletService(walletId, password);
         } else {
             finish();
@@ -512,7 +526,8 @@ public class WalletActivity extends BaseActivity implements WalletFragment.Liste
 
     @Override
     public void onSendRequest() {
-        replaceFragment(new SendFragment(), null, null);
+        replaceFragment(SendFragment.newInstance(uri), null, null);
+        uri = null; // only use uri once
     }
 
     @Override
@@ -708,26 +723,6 @@ public class WalletActivity extends BaseActivity implements WalletFragment.Liste
         }
     }
 
-    @Override
-    public void onSetNotes(final boolean success) {
-        try {
-            final TxFragment txFragment = (TxFragment)
-                    getSupportFragmentManager().findFragmentById(R.id.fragment_container);
-            runOnUiThread(new Runnable() {
-                public void run() {
-                    if (!success) {
-                        Toast.makeText(WalletActivity.this, getString(R.string.tx_notes_set_failed), Toast.LENGTH_LONG).show();
-                    }
-                    txFragment.onNotesSet(success);
-                }
-            });
-        } catch (ClassCastException ex) {
-            // not in tx fragment
-            Timber.d(ex.getLocalizedMessage());
-            // never mind
-        }
-    }
-
     @Override
     public void onProgress(final String text) {
         try {
@@ -789,21 +784,6 @@ public class WalletActivity extends BaseActivity implements WalletFragment.Liste
 
     }
 
-    @Override
-    public void onSetNote(String txId, String notes) {
-        if (mIsBound) { // no point in talking to unbound service
-            Intent intent = new Intent(getApplicationContext(), WalletService.class);
-            intent.putExtra(WalletService.REQUEST, WalletService.REQUEST_CMD_SETNOTE);
-            intent.putExtra(WalletService.REQUEST_CMD_SETNOTE_TX, txId);
-            intent.putExtra(WalletService.REQUEST_CMD_SETNOTE_NOTES, notes);
-            startService(intent);
-            Timber.d("SET NOTE request sent");
-        } else {
-            Timber.e("Service not bound");
-        }
-
-    }
-
     @Override
     public void onPrepareSend(final String tag, final TxData txData) {
         if (mIsBound) { // no point in talking to unbound service
@@ -958,8 +938,6 @@ public class WalletActivity extends BaseActivity implements WalletFragment.Liste
         }
         if (!processed || (onUriScannedListener == null)) {
             Toast.makeText(this, getString(R.string.nfc_tag_read_what), Toast.LENGTH_LONG).show();
-        } else {
-            Toast.makeText(this, getString(R.string.nfc_tag_read_success), Toast.LENGTH_SHORT).show();
         }
     }
 
@@ -1059,6 +1037,7 @@ public class WalletActivity extends BaseActivity implements WalletFragment.Liste
         } else {
             tvBalance.setText(null);
         }
+        updateAccountsList();
     }
 
     void updateAccountsHeader() {
@@ -1072,8 +1051,11 @@ public class WalletActivity extends BaseActivity implements WalletFragment.Liste
         Menu menu = accountsView.getMenu();
         menu.removeGroup(R.id.accounts_list);
         final int n = wallet.getNumAccounts();
+        final boolean showBalances = (n > 1) && !isStreetMode();
         for (int i = 0; i < n; i++) {
-            final String label = wallet.getAccountLabel(i);
+            final String label = (showBalances ?
+                    getString(R.string.label_account, wallet.getAccountLabel(i), Helper.getDisplayAmount(wallet.getBalance(i), 2))
+                    : wallet.getAccountLabel(i));
             final MenuItem item = menu.add(R.id.accounts_list, getAccountId(i), 2 * i, label);
             item.setIcon(R.drawable.ic_account_balance_wallet_black_24dp);
             if (i == wallet.getAccountIndex())

app/src/main/java/com/m2049r/xmrwallet/WalletFragment.java

@@ -219,7 +219,7 @@ public class WalletFragment extends Fragment
         if (isExchanging) return; // wait for exchange to finish - it will fire this itself then.
         // at this point selection is XMR in case of error
         String displayB;
-        double amountA = Double.parseDouble(Wallet.getDisplayAmount(unlockedBalance)); // crash if this fails!
+        double amountA = Helper.getDecimalAmount(unlockedBalance).doubleValue();
         if (!Helper.CRYPTO.equals(balanceCurrency)) { // not XMR
             double amountB = amountA * balanceRate;
             displayB = Helper.getFormattedAmount(amountB, false);
@@ -235,10 +235,10 @@ public class WalletFragment extends Fragment
     private final ExchangeApi exchangeApi = Helper.getExchangeApi();
 
     void refreshBalance() {
-        double unconfirmedXmr = Double.parseDouble(Helper.getDisplayAmount(balance - unlockedBalance));
+        double unconfirmedXmr = Helper.getDecimalAmount(balance - unlockedBalance).doubleValue();
         showUnconfirmed(unconfirmedXmr);
         if (sCurrency.getSelectedItemPosition() == 0) { // XMR
-            double amountXmr = Double.parseDouble(Wallet.getDisplayAmount(unlockedBalance)); // assume this cannot fail!
+            double amountXmr = Helper.getDecimalAmount(unlockedBalance).doubleValue();
             showBalance(Helper.getFormattedAmount(amountXmr, true));
         } else { // not XMR
             String currency = (String) sCurrency.getSelectedItem();
@@ -294,7 +294,7 @@ public class WalletFragment extends Fragment
 
     public void exchangeFailed() {
         sCurrency.setSelection(0, true); // default to XMR
-        double amountXmr = Double.parseDouble(Wallet.getDisplayAmount(unlockedBalance)); // assume this cannot fail!
+        double amountXmr = Helper.getDecimalAmount(unlockedBalance).doubleValue();
         showBalance(Helper.getFormattedAmount(amountXmr, true));
         hideExchanging();
     }

app/src/main/java/com/m2049r/xmrwallet/data/BarcodeData.java

@@ -21,7 +21,10 @@ import android.net.Uri;
 import com.m2049r.xmrwallet.model.Wallet;
 import com.m2049r.xmrwallet.util.BitcoinAddressValidator;
 import com.m2049r.xmrwallet.util.OpenAliasHelper;
+import com.m2049r.xmrwallet.util.PaymentProtocolHelper;
 
+import java.net.URI;
+import java.net.URISyntaxException;
 import java.util.HashMap;
 import java.util.Map;
 
@@ -37,9 +40,10 @@ public class BarcodeData {
     public static final String OA_XMR_ASSET = "xmr";
     public static final String OA_BTC_ASSET = "btc";
 
-    static final String BTC_SCHEME = "bitcoin:";
+    static final String BTC_SCHEME = "bitcoin";
     static final String BTC_DESCRIPTION = "message";
     static final String BTC_AMOUNT = "amount";
+    static final String BTC_BIP70_PARM = "r";
 
     public enum Asset {
         XMR, BTC
@@ -48,7 +52,8 @@ public class BarcodeData {
     public enum Security {
         NORMAL,
         OA_NO_DNSSEC,
-        OA_DNSSEC
+        OA_DNSSEC,
+        BIP70
     }
 
     final public Asset asset;
@@ -58,57 +63,44 @@ public class BarcodeData {
     final public String amount;
     final public String description;
     final public Security security;
+    final public String bip70;
 
     public BarcodeData(Asset asset, String address) {
-        this.asset = asset;
-        this.address = address;
-        amount = null;
-        paymentId = null;
-        addressName = null;
-        description = null;
-        this.security = Security.NORMAL;
+        this(asset, address, null, null, null, null, Security.NORMAL);
     }
 
     public BarcodeData(Asset asset, String address, String amount) {
-        this.asset = asset;
-        this.address = address;
-        this.amount = amount;
-        paymentId = null;
-        addressName = null;
-        description = null;
-        this.security = Security.NORMAL;
+        this(asset, address, null, null, null, amount, Security.NORMAL);
+    }
+
+    public BarcodeData(Asset asset, String address, String amount, String description, Security security) {
+        this(asset, address, null, null, description, amount, security);
     }
 
     public BarcodeData(Asset asset, String address, String paymentId, String amount) {
-        this.asset = asset;
-        this.address = address;
-        this.paymentId = paymentId;
-        this.amount = amount;
-        addressName = null;
-        description = null;
-        this.security = Security.NORMAL;
+        this(asset, address, null, paymentId, null, amount, Security.NORMAL);
     }
 
     public BarcodeData(Asset asset, String address, String paymentId, String description, String amount) {
-        this.asset = asset;
-        this.address = address;
-        this.paymentId = paymentId;
-        this.description = description;
-        this.amount = amount;
-        addressName = null;
-        this.security = Security.NORMAL;
+        this(asset, address, null, paymentId, description, amount, Security.NORMAL);
     }
 
-    public BarcodeData(Asset asset, String address, String addressName, String paymentId, String description, String amount, Security sec) {
+    public BarcodeData(Asset asset, String address, String addressName, String paymentId, String description, String amount, Security security) {
+        this(asset, address, addressName, null, paymentId, description, amount, security);
+    }
+
+    public BarcodeData(Asset asset, String address, String addressName, String bip70, String paymentId, String description, String amount, Security security) {
         this.asset = asset;
         this.address = address;
+        this.bip70 = bip70;
         this.addressName = addressName;
         this.paymentId = paymentId;
         this.description = description;
         this.amount = amount;
-        this.security = sec;
+        this.security = security;
     }
 
+
     public Uri getUri() {
         return Uri.parse(getUriString());
     }
@@ -146,6 +138,10 @@ public class BarcodeData {
         if (bcData == null) {
             bcData = parseBitcoinUri(qrCode);
         }
+        // check for btc payment uri (like bitpay)
+        if (bcData == null) {
+            bcData = parseBitcoinPaymentUrl(qrCode);
+        }
         // check for naked btc address
         if (bcData == null) {
             bcData = parseBitcoinNaked(qrCode);
@@ -228,19 +224,28 @@ public class BarcodeData {
     }
 
     // bitcoin:mpQ84J43EURZHkCnXbyQ4PpNDLLBqdsMW2?amount=0.01
-    static public BarcodeData parseBitcoinUri(String uri) {
-        Timber.d("parseBitcoinUri=%s", uri);
+    // bitcoin:?r=https://bitpay.com/i/xxx
+    static public BarcodeData parseBitcoinUri(String uriString) {
+        Timber.d("parseBitcoinUri=%s", uriString);
 
-        if (uri == null) return null;
+        if (uriString == null) return null;
+        URI uri;
+        try {
+            uri = new URI(uriString);
+        } catch (URISyntaxException ex) {
+            return null;
+        }
+        if (!uri.isOpaque() ||
+                !uri.getScheme().equals(BTC_SCHEME)) return null;
 
-        if (!uri.startsWith(BTC_SCHEME)) return null;
-
-        String noScheme = uri.substring(BTC_SCHEME.length());
-        Uri bitcoin = Uri.parse(noScheme);
+        String[] parts = uri.getRawSchemeSpecificPart().split("[?]");
+        if ((parts.length <= 0) || (parts.length > 2)) {
+            Timber.d("invalid number of parts %d", parts.length);
+            return null;
+        }
         Map<String, String> parms = new HashMap<>();
-        String query = bitcoin.getQuery();
-        if (query != null) {
-            String[] args = query.split("&");
+        if (parts.length == 2) {
+            String[] args = parts[1].split("&");
             for (String arg : args) {
                 String[] namevalue = arg.split("=");
                 if (namevalue.length == 0) {
@@ -250,10 +255,26 @@ public class BarcodeData {
                         namevalue.length > 1 ? Uri.decode(namevalue[1]) : "");
             }
         }
-        String address = bitcoin.getPath();
         String description = parms.get(BTC_DESCRIPTION);
+        String address = parts[0]; // no need to decode as there can bo no special characters
+        if (address.isEmpty()) { // possibly a BIP72 uri
+            String bip70 = parms.get(BTC_BIP70_PARM);
+            if (bip70 == null) {
+                Timber.d("no address and can't find pp url");
+                return null;
+            }
+            if (!PaymentProtocolHelper.isHttp(bip70)) {
+                Timber.d("[%s] is not http url", bip70);
+                return null;
+            }
+            return new BarcodeData(BarcodeData.Asset.BTC, null, null, bip70, null, description, null, Security.NORMAL);
+        }
+        if (!BitcoinAddressValidator.validate(address)) {
+            Timber.d("BTC address (%s) invalid", address);
+            return null;
+        }
         String amount = parms.get(BTC_AMOUNT);
-        if (amount != null) {
+        if ((amount != null) && (!amount.isEmpty())) {
             try {
                 Double.parseDouble(amount);
             } catch (NumberFormatException ex) {
@@ -261,11 +282,22 @@ public class BarcodeData {
                 return null; // we have an amount but its not a number!
             }
         }
-        if (!BitcoinAddressValidator.validate(address)) {
-            Timber.d("address invalid");
+        return new BarcodeData(BarcodeData.Asset.BTC, address, null, description, amount);
+    }
+
+    // https://bitpay.com/invoice?id=xxx
+    // https://bitpay.com/i/KbMdd4EhnLXSbpWGKsaeo6
+    static public BarcodeData parseBitcoinPaymentUrl(String url) {
+        Timber.d("parseBitcoinUri=%s", url);
+
+        if (url == null) return null;
+
+        if (!PaymentProtocolHelper.isHttp(url)) {
+            Timber.d("[%s] is not http url", url);
             return null;
         }
-        return new BarcodeData(BarcodeData.Asset.BTC, address, null, description, amount);
+
+        return new BarcodeData(Asset.BTC, url);
     }
 
     static public BarcodeData parseBitcoinNaked(String address) {

app/src/main/java/com/m2049r/xmrwallet/data/NodeInfo.java

@@ -46,7 +46,8 @@ import okhttp3.ResponseBody;
 import timber.log.Timber;
 
 public class NodeInfo extends Node {
-    final static public int MIN_MAJOR_VERSION = 9;
+    final static public int MIN_MAJOR_VERSION = 11;
+    final static public String RPC_VERSION = "2.0";
 
     private long height = 0;
     private long timestamp = 0;
@@ -228,9 +229,12 @@ public class NodeInfo extends Node {
                 responseCode = response.code();
                 if (response.isSuccessful()) {
                     ResponseBody respBody = response.body(); // closed through Response object
-                    if ((respBody != null) && (respBody.contentLength() < 1000)) { // sanity check
+                    if ((respBody != null) && (respBody.contentLength() < 2000)) { // sanity check
                         final JSONObject json = new JSONObject(
                                 respBody.string());
+                        String rpcVersion = json.getString("jsonrpc");
+                        if (!RPC_VERSION.equals(rpcVersion))
+                            return false;
                         final JSONObject header = json.getJSONObject(
                                 "result").getJSONObject("block_header");
                         height = header.getLong("height");

app/src/main/java/com/m2049r/xmrwallet/data/TxData.java

@@ -20,9 +20,6 @@ import android.os.Parcel;
 import android.os.Parcelable;
 
 import com.m2049r.xmrwallet.model.PendingTransaction;
-import com.m2049r.xmrwallet.util.UserNotes;
-
-import timber.log.Timber;
 
 // https://stackoverflow.com/questions/2139134/how-to-send-an-object-from-one-android-activity-to-another-using-intents
 public class TxData implements Parcelable {

app/src/main/java/com/m2049r/xmrwallet/data/TxDataBtc.java

@@ -18,12 +18,11 @@ package com.m2049r.xmrwallet.data;
 
 import android.os.Parcel;
 
-import com.m2049r.xmrwallet.model.PendingTransaction;
-
 public class TxDataBtc extends TxData {
 
     private String xmrtoUuid;
     private String btcAddress;
+    private String bip70;
     private double btcAmount;
 
     public TxDataBtc() {
@@ -50,6 +49,14 @@ public class TxDataBtc extends TxData {
         this.btcAddress = btcAddress;
     }
 
+    public String getBip70() {
+        return bip70;
+    }
+
+    public void setBip70(String bip70) {
+        this.bip70 = bip70;
+    }
+
     public double getBtcAmount() {
         return btcAmount;
     }
@@ -63,6 +70,7 @@ public class TxDataBtc extends TxData {
         super.writeToParcel(out, flags);
         out.writeString(xmrtoUuid);
         out.writeString(btcAddress);
+        out.writeString(bip70);
         out.writeDouble(btcAmount);
     }
 
@@ -81,16 +89,19 @@ public class TxDataBtc extends TxData {
         super(in);
         xmrtoUuid = in.readString();
         btcAddress = in.readString();
+        bip70 = in.readString();
         btcAmount = in.readDouble();
     }
 
     @Override
     public String toString() {
-        StringBuffer sb = new StringBuffer();
+        StringBuilder sb = new StringBuilder();
         sb.append(",xmrtoUuid:");
         sb.append(xmrtoUuid);
         sb.append(",btcAddress:");
         sb.append(btcAddress);
+        sb.append(",bip70:");
+        sb.append(bip70);
         sb.append(",btcAmount:");
         sb.append(btcAmount);
         return sb.toString();

app/src/main/java/com/m2049r/xmrwallet/data/UserNotes.java

@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-package com.m2049r.xmrwallet.util;
+package com.m2049r.xmrwallet.data;
 
 import com.m2049r.xmrwallet.xmrto.api.QueryOrderStatus;
 

app/src/main/java/com/m2049r/xmrwallet/dialog/HelpFragment.java

@@ -67,7 +67,7 @@ public class HelpFragment extends DialogFragment {
 
         AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
         builder.setView(view);
-        builder.setNegativeButton(R.string.about_close,
+        builder.setNegativeButton(R.string.help_ok,
                 new DialogInterface.OnClickListener() {
                     @Override
                     public void onClick(DialogInterface dialog, int id) {

app/src/main/java/com/m2049r/xmrwallet/dialog/ProgressDialog.java

@@ -22,11 +22,11 @@ import android.content.Context;
 import android.os.Bundle;
 import android.view.LayoutInflater;
 import android.view.View;
-import android.view.ViewGroup;
-import android.widget.FrameLayout;
+import android.view.WindowManager;
 import android.widget.ProgressBar;
 import android.widget.TextView;
 
+import com.m2049r.xmrwallet.BuildConfig;
 import com.m2049r.xmrwallet.R;
 
 import java.util.Locale;
@@ -62,9 +62,6 @@ public class ProgressDialog extends AlertDialog {
         pbBar = view.findViewById(R.id.pbBar);
         tvProgress = view.findViewById(R.id.tvProgress);
         setView(view);
-        //setTitle("blabla");
-        //super.setMessage("bubbu");
-//        view.invalidate();
         setIndeterminate(indeterminate);
         if (maxValue > 0) {
             setMax(maxValue);
@@ -78,6 +75,11 @@ public class ProgressDialog extends AlertDialog {
         }
 
         super.onCreate(savedInstanceState);
+
+        // set FLAG_SECURE to prevent screenshots in Release Mode
+        if (!(BuildConfig.DEBUG && BuildConfig.FLAVOR_type.equals("alpha"))) {
+            getWindow().setFlags(WindowManager.LayoutParams.FLAG_SECURE, WindowManager.LayoutParams.FLAG_SECURE);
+        }
     }
 
     public void setProgress(int value, int max) {

app/src/main/java/com/m2049r/xmrwallet/fragment/send/SendBtcAmountWizardFragment.java

@@ -120,6 +120,15 @@ public class SendBtcAmountWizardFragment extends SendWizardFragment {
         return true;
     }
 
+    private void setBip70Mode() {
+        TxDataBtc txDataBtc = (TxDataBtc) sendListener.getTxData();
+        if (txDataBtc.getBip70() != null) {
+            numberPad.setVisibility(View.INVISIBLE);
+        } else {
+            numberPad.setVisibility(View.VISIBLE);
+        }
+    }
+
     double maxBtc = 0;
     double minBtc = 0;
 
@@ -141,12 +150,13 @@ public class SendBtcAmountWizardFragment extends SendWizardFragment {
             tvFunds.setText(getString(R.string.send_available,
                     getString(R.string.unknown_amount)));
         }
-        if ((evAmount.getAmount() == null) || evAmount.getAmount().isEmpty()) {
-            final BarcodeData data = sendListener.popBarcodeData();
-            if ((data != null) && (data.amount != null)) {
+        final BarcodeData data = sendListener.popBarcodeData();
+        if (data != null) {
+            if (data.amount != null) {
                 evAmount.setAmount(data.amount);
             }
         }
+        setBip70Mode();
         callXmrTo();
     }