Merge pull request #31 from m2049r/doc

Update FAQ + version

app/build.gradle

@@ -7,8 +7,8 @@ android {
         applicationId "com.m2049r.xmrwallet"
         minSdkVersion 21
         targetSdkVersion 25
-        versionCode 8
-        versionName "0.5.1"
+        versionCode 9
+        versionName "0.5.2"
         testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
         externalNativeBuild {
             cmake {

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

@@ -16,9 +16,9 @@
 
 package com.m2049r.xmrwallet;
 
-import android.app.Fragment;
 import android.content.Context;
 import android.os.Bundle;
+import android.support.v4.app.Fragment;
 import android.text.Editable;
 import android.text.InputType;
 import android.text.TextWatcher;

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

@@ -16,9 +16,9 @@
 
 package com.m2049r.xmrwallet;
 
-import android.app.Fragment;
 import android.content.Context;
 import android.os.Bundle;
+import android.support.v4.app.Fragment;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;

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

@@ -17,9 +17,6 @@
 package com.m2049r.xmrwallet;
 
 import android.app.AlertDialog;
-import android.app.Fragment;
-import android.app.FragmentManager;
-import android.app.FragmentTransaction;
 import android.content.Context;
 import android.content.DialogInterface;
 import android.content.Intent;
@@ -27,6 +24,10 @@ import android.content.SharedPreferences;
 import android.content.pm.PackageManager;
 import android.os.Bundle;
 import android.support.annotation.NonNull;
+import android.support.v4.app.Fragment;
+
+import android.support.v4.app.FragmentManager;
+import android.support.v4.app.FragmentTransaction;
 import android.support.v7.app.AppCompatActivity;
 import android.support.v7.widget.Toolbar;
 import android.util.Log;
@@ -40,6 +41,7 @@ import android.widget.Toast;
 
 import com.m2049r.xmrwallet.model.Wallet;
 import com.m2049r.xmrwallet.model.WalletManager;
+import com.m2049r.xmrwallet.service.WalletService;
 import com.m2049r.xmrwallet.util.Helper;
 
 import java.io.File;
@@ -77,6 +79,10 @@ public class LoginActivity extends AppCompatActivity
 
     @Override
     public void onWalletSelected(final String walletName) {
+        if (WalletService.Running) {
+            Toast.makeText(this, getString(R.string.service_busy), Toast.LENGTH_SHORT).show();
+            return;
+        }
         Log.d(TAG, "selected wallet is ." + walletName + ".");
         // now it's getting real, check if wallet exists
         String walletPath = Helper.getWalletPath(this, walletName);
@@ -276,7 +282,7 @@ public class LoginActivity extends AppCompatActivity
 
     void startLoginFragment() {
         Fragment fragment = new LoginFragment();
-        getFragmentManager().beginTransaction()
+        getSupportFragmentManager().beginTransaction()
                 .add(R.id.fragment_container, fragment).commit();
         Log.d(TAG, "LoginFragment added");
     }
@@ -295,14 +301,14 @@ public class LoginActivity extends AppCompatActivity
         if (extras != null) {
             newFragment.setArguments(extras);
         }
-        FragmentTransaction transaction = getFragmentManager().beginTransaction();
+        FragmentTransaction transaction = getSupportFragmentManager().beginTransaction();
         transaction.replace(R.id.fragment_container, newFragment);
         transaction.addToBackStack(stackName);
         transaction.commit();
     }
 
     void popFragmentStack(String name) {
-        getFragmentManager().popBackStack(name, FragmentManager.POP_BACK_STACK_INCLUSIVE);
+        getSupportFragmentManager().popBackStack(name, FragmentManager.POP_BACK_STACK_INCLUSIVE);
     }
 
     //////////////////////////////////////////
@@ -312,7 +318,7 @@ public class LoginActivity extends AppCompatActivity
 
     public void createWallet(final String name, final String password, final WalletCreator walletCreator) {
         final GenerateFragment genFragment = (GenerateFragment)
-                getFragmentManager().findFragmentById(R.id.fragment_container);
+                getSupportFragmentManager().findFragmentById(R.id.fragment_container);
         File newWalletFolder = new File(getStorageRoot(), ".new");
         if (!newWalletFolder.exists()) {
             if (!newWalletFolder.mkdir()) {

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

@@ -16,12 +16,12 @@
 
 package com.m2049r.xmrwallet;
 
-import android.app.Fragment;
 import android.content.Context;
 import android.content.SharedPreferences;
 import android.os.Bundle;
 import android.os.StrictMode;
 import android.support.design.widget.FloatingActionButton;
+import android.support.v4.app.Fragment;
 import android.util.Log;
 import android.view.ContextMenu;
 import android.view.KeyEvent;

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

@@ -16,10 +16,10 @@
 
 package com.m2049r.xmrwallet;
 
-import android.app.Fragment;
 import android.content.Context;
 import android.os.Bundle;
 import android.os.Handler;
+import android.support.v4.app.Fragment;
 import android.util.Log;
 import android.view.LayoutInflater;
 import android.view.View;
@@ -28,8 +28,7 @@ import android.widget.Toast;
 
 import com.google.zxing.BarcodeFormat;
 import com.google.zxing.Result;
-import com.m2049r.xmrwallet.model.WalletManager;
-import com.m2049r.xmrwallet.util.Helper;
+import com.m2049r.xmrwallet.util.BarcodeData;
 
 import me.dm7.barcodescanner.zxing.ZXingScannerView;
 
@@ -39,9 +38,7 @@ public class ScannerFragment extends Fragment implements ZXingScannerView.Result
     Listener activityCallback;
 
     public interface Listener {
-        void onAddressScanned(String address, String paymentId);
-
-        boolean isPaymentIdValid(String paymentId);
+        boolean onAddressScanned(String uri);
     }
 
     private ZXingScannerView mScannerView;
@@ -61,32 +58,16 @@ public class ScannerFragment extends Fragment implements ZXingScannerView.Result
         mScannerView.startCamera();
     }
 
-    static final String URI_PREFIX = "monero:";
-    static final String PAYMENTID_STRING = "?tx_payment_id=";
+    static final String QR_SCHEME = "monero:";
+    static final String QR_PAYMENTID = "tx_payment_id";
+    static final String QR_AMOUNT = "tx_amount";
 
     @Override
     public void handleResult(Result rawResult) {
-        Log.d(TAG, rawResult.getBarcodeFormat().toString() + "/" + rawResult.getText());
-        String text = rawResult.getText();
+        //Log.d(TAG, rawResult.getBarcodeFormat().toString() + "/" + rawResult.getText());
         if ((rawResult.getBarcodeFormat() == BarcodeFormat.QR_CODE) &&
-                (text.startsWith(URI_PREFIX))) {
-            String address = null;
-            String paymentId = null;
-            String s = text.substring(URI_PREFIX.length());
-            if (s.length() == 95) {
-                address = s;
-            } else {
-                int i = s.indexOf(PAYMENTID_STRING);
-                if ((i == 95) && (s.length() == (95 + PAYMENTID_STRING.length() + 16))) {
-                    address = s.substring(0, 95);
-                    paymentId = s.substring(95 + PAYMENTID_STRING.length());
-                    if (!activityCallback.isPaymentIdValid(paymentId)) {
-                        address = null;
-                    }
-                }
-            }
-            if (Helper.isAddressOk(address, WalletManager.getInstance().isTestNet())) {
-                activityCallback.onAddressScanned(address, paymentId);
+                (rawResult.getText().startsWith(QR_SCHEME))) {
+            if (activityCallback.onAddressScanned(rawResult.getText())) {
                 return;
             } else {
                 Toast.makeText(getActivity(), getString(R.string.send_qr_address_invalid), Toast.LENGTH_SHORT).show();
@@ -120,7 +101,7 @@ public class ScannerFragment extends Fragment implements ZXingScannerView.Result
     @Override
     public void onAttach(Context context) {
         super.onAttach(context);
-        Log.d(TAG, "attaching scan");
+        //Log.d(TAG, "attaching scan");
         if (context instanceof Listener) {
             this.activityCallback = (Listener) context;
         } else {

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

@@ -16,11 +16,11 @@
 
 package com.m2049r.xmrwallet;
 
-import android.app.Fragment;
 import android.content.Context;
 import android.content.DialogInterface;
 import android.os.Bundle;
 import android.os.Handler;
+import android.support.v4.app.Fragment;
 import android.support.v7.app.AlertDialog;
 import android.text.Editable;
 import android.text.InputType;
@@ -373,26 +373,40 @@ public class SendFragment extends Fragment {
     @Override
     public void onResume() {
         super.onResume();
+        Log.d(TAG, "onResume");
         BarcodeData data = activityCallback.getScannedData();
         if (data != null) {
             String scannedAddress = data.address;
             if (scannedAddress != null) {
                 etAddress.setText(scannedAddress);
+            } else {
+                etAddress.getText().clear();
             }
             String scannedPaymenId = data.paymentId;
             if (scannedPaymenId != null) {
                 etPaymentId.setText(scannedPaymenId);
+            } else {
+                etPaymentId.getText().clear();
+            }
+            if (data.amount >= 0) {
+                String scannedAmount = Helper.getDisplayAmount(data.amount);
+                etAmount.setText(scannedAmount);
+            } else {
+                etAmount.getText().clear();
+            }
+            etAmount.requestFocus();
+            etAmount.setSelection(etAmount.getText().length());
+        } else { // no scan data
+            // jump to first empty field
+            if (etAddress.getText().toString().isEmpty()) {
+                etAddress.requestFocus();
+            } else if (etPaymentId.getText().toString().isEmpty()) {
+                etPaymentId.requestFocus();
+            } else {
+                etAmount.requestFocus();
+                etAmount.setSelection(etAmount.getText().length());
             }
         }
-        // jump to first empty field
-        if (etAddress.getText().toString().isEmpty()) {
-            etAddress.requestFocus();
-        } else if (etPaymentId.getText().toString().isEmpty()) {
-            etPaymentId.requestFocus();
-        } else {
-            etAmount.requestFocus();
-        }
-        Log.d(TAG, "onResume");
     }
 
     @Override

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

@@ -16,28 +16,23 @@
 
 package com.m2049r.xmrwallet;
 
-import android.app.Fragment;
 import android.content.ClipData;
 import android.content.ClipboardManager;
 import android.content.Context;
 import android.os.Bundle;
+import android.support.v4.app.Fragment;
 import android.text.InputType;
-import android.util.Log;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
 import android.widget.Button;
-import android.widget.ProgressBar;
 import android.widget.TextView;
 import android.widget.Toast;
 
 import com.m2049r.xmrwallet.model.TransactionInfo;
 import com.m2049r.xmrwallet.model.Transfer;
 import com.m2049r.xmrwallet.model.Wallet;
-import com.m2049r.xmrwallet.model.WalletManager;
-import com.m2049r.xmrwallet.service.MoneroHandlerThread;
 
-import java.io.File;
 import java.text.SimpleDateFormat;
 import java.util.Calendar;
 import java.util.Date;

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

@@ -16,18 +16,20 @@
 
 package com.m2049r.xmrwallet;
 
-import android.app.Fragment;
-import android.app.FragmentManager;
-import android.app.FragmentTransaction;
 import android.content.ComponentName;
 import android.content.Context;
 import android.content.Intent;
 import android.content.ServiceConnection;
 import android.content.pm.PackageManager;
+import android.net.Uri;
+import android.net.UrlQuerySanitizer;
 import android.os.Bundle;
 import android.os.IBinder;
 import android.os.PowerManager;
 import android.support.annotation.NonNull;
+import android.support.v4.app.Fragment;
+import android.support.v4.app.FragmentManager;
+import android.support.v4.app.FragmentTransaction;
 import android.support.v7.app.AppCompatActivity;
 import android.support.v7.widget.Toolbar;
 import android.util.Log;
@@ -45,6 +47,9 @@ import com.m2049r.xmrwallet.util.BarcodeData;
 import com.m2049r.xmrwallet.util.Helper;
 import com.m2049r.xmrwallet.util.TxData;
 
+import java.util.HashMap;
+import java.util.Map;
+
 public class WalletActivity extends AppCompatActivity implements WalletFragment.Listener,
         WalletService.Observer, SendFragment.Listener, TxFragment.Listener,
         GenerateReviewFragment.ListenerWithWallet,
@@ -155,7 +160,7 @@ public class WalletActivity extends AppCompatActivity implements WalletFragment.
         }
 
         Fragment walletFragment = new WalletFragment();
-        getFragmentManager().beginTransaction()
+        getSupportFragmentManager().beginTransaction()
                 .add(R.id.fragment_container, walletFragment).commit();
         Log.d(TAG, "fragment added");
 
@@ -336,7 +341,7 @@ public class WalletActivity extends AppCompatActivity implements WalletFragment.
         Log.d(TAG, "onRefreshed()");
         try {
             final WalletFragment walletFragment = (WalletFragment)
-                    getFragmentManager().findFragmentById(R.id.fragment_container);
+                    getSupportFragmentManager().findFragmentById(R.id.fragment_container);
             if (wallet.isSynchronized()) {
                 Log.d(TAG, "onRefreshed() synced");
                 releaseWakeLock(); // the idea is to stay awake until synced
@@ -401,7 +406,7 @@ public class WalletActivity extends AppCompatActivity implements WalletFragment.
     public void onCreatedTransaction(final PendingTransaction pendingTransaction) {
         try {
             final SendFragment sendFragment = (SendFragment)
-                    getFragmentManager().findFragmentById(R.id.fragment_container);
+                    getSupportFragmentManager().findFragmentById(R.id.fragment_container);
             runOnUiThread(new Runnable() {
                 public void run() {
                     PendingTransaction.Status status = pendingTransaction.getStatus();
@@ -440,7 +445,7 @@ public class WalletActivity extends AppCompatActivity implements WalletFragment.
     public void onSetNotes(final boolean success) {
         try {
             final TxFragment txFragment = (TxFragment)
-                    getFragmentManager().findFragmentById(R.id.fragment_container);
+                    getSupportFragmentManager().findFragmentById(R.id.fragment_container);
             runOnUiThread(new Runnable() {
                 public void run() {
                     if (!success) {
@@ -460,7 +465,7 @@ public class WalletActivity extends AppCompatActivity implements WalletFragment.
     public void onProgress(final String text) {
         try {
             final WalletFragment walletFragment = (WalletFragment)
-                    getFragmentManager().findFragmentById(R.id.fragment_container);
+                    getSupportFragmentManager().findFragmentById(R.id.fragment_container);
             runOnUiThread(new Runnable() {
                 public void run() {
                     walletFragment.onProgress(text);
@@ -477,7 +482,7 @@ public class WalletActivity extends AppCompatActivity implements WalletFragment.
     public void onProgress(final int n) {
         try {
             final WalletFragment walletFragment = (WalletFragment)
-                    getFragmentManager().findFragmentById(R.id.fragment_container);
+                    getSupportFragmentManager().findFragmentById(R.id.fragment_container);
             runOnUiThread(new Runnable() {
                 public void run() {
                     walletFragment.onProgress(n);
@@ -563,7 +568,7 @@ public class WalletActivity extends AppCompatActivity implements WalletFragment.
 
     @Override
     public boolean isPaymentIdValid(String paymentId) {
-        return getWallet().isPaymentIdValid(paymentId);
+        return Wallet.isPaymentIdValid(paymentId);
     }
 
     @Override
@@ -573,9 +578,9 @@ public class WalletActivity extends AppCompatActivity implements WalletFragment.
 
     void popFragmentStack(String name) {
         if (name == null) {
-            getFragmentManager().popBackStack();
+            getSupportFragmentManager().popBackStack();
         } else {
-            getFragmentManager().popBackStack(name, FragmentManager.POP_BACK_STACK_INCLUSIVE);
+            getSupportFragmentManager().popBackStack(name, FragmentManager.POP_BACK_STACK_INCLUSIVE);
         }
     }
 
@@ -583,14 +588,14 @@ public class WalletActivity extends AppCompatActivity implements WalletFragment.
         if (extras != null) {
             newFragment.setArguments(extras);
         }
-        FragmentTransaction transaction = getFragmentManager().beginTransaction();
+        FragmentTransaction transaction = getSupportFragmentManager().beginTransaction();
         transaction.replace(R.id.fragment_container, newFragment);
         transaction.addToBackStack(stackName);
         transaction.commit();
     }
 
     private void onWalletDetails() {
-        Fragment fragment = getFragmentManager().findFragmentById(R.id.fragment_container);
+        Fragment fragment = getSupportFragmentManager().findFragmentById(R.id.fragment_container);
         if (!(fragment instanceof GenerateReviewFragment)) {
             Bundle extras = new Bundle();
             extras.putString("type", GenerateReviewFragment.VIEW_WALLET);
@@ -605,7 +610,7 @@ public class WalletActivity extends AppCompatActivity implements WalletFragment.
 
 
     private void startScanFragment() {
-        Fragment fragment = getFragmentManager().findFragmentById(R.id.fragment_container);
+        Fragment fragment = getSupportFragmentManager().findFragmentById(R.id.fragment_container);
         if (fragment instanceof SendFragment) {
             Bundle extras = new Bundle();
             replaceFragment(new ScannerFragment(), null, extras);
@@ -626,12 +631,61 @@ public class WalletActivity extends AppCompatActivity implements WalletFragment.
     private BarcodeData scannedData = null;
 
     @Override
-    public void onAddressScanned(String address, String paymentId) {
-        // Log.d(TAG, "got " + address);
-        scannedData = new BarcodeData(address, paymentId);
-        popFragmentStack(null);
+    public boolean onAddressScanned(String uri) {
+        BarcodeData bcData = parseMoneroUri(uri);
+        if (bcData != null) {
+            this.scannedData = bcData;
+            popFragmentStack(null);
+            return true;
+        } else {
+            return false;
+        }
     }
 
+    /**
+     * Parse and decode a monero scheme string. It is here because it needs to validate the data.
+     *
+     * @param uri String containing a monero URL
+     * @return BarcodeData object or null if uri not valid
+     */
+    public BarcodeData parseMoneroUri(String uri) {
+        if (uri == null) return null;
+
+        if (!uri.startsWith(ScannerFragment.QR_SCHEME)) return null;
+
+        String noScheme = uri.substring(ScannerFragment.QR_SCHEME.length());
+        Uri monero = Uri.parse(noScheme);
+        Map<String, String> parms = new HashMap<>();
+        String query = monero.getQuery();
+        if (query != null) {
+            String[] args = query.split("&");
+            for (String arg : args) {
+                String[] namevalue = arg.split("=");
+                if (namevalue.length == 0) {
+                    continue;
+                }
+                parms.put(Uri.decode(namevalue[0]).toLowerCase(),
+                        namevalue.length > 1 ? Uri.decode(namevalue[1]) : null);
+            }
+        }
+        String address = monero.getPath();
+        String paymentId = parms.get(ScannerFragment.QR_PAYMENTID);
+        String amountString = parms.get(ScannerFragment.QR_AMOUNT);
+        long amount = -1;
+        if (amountString != null) {
+            amount = Wallet.getAmountFromString(amountString);
+        }
+        if ((paymentId != null) && !Wallet.isPaymentIdValid(paymentId)) {
+            address = null;
+        }
+
+        if (Helper.isAddressOk(address, WalletManager.getInstance().isTestNet())) {
+            return new BarcodeData(address, paymentId, amount);
+        }
+        return null;
+    }
+
+
     @Override
     public BarcodeData getScannedData() {
         BarcodeData data = scannedData;
@@ -640,7 +694,8 @@ public class WalletActivity extends AppCompatActivity implements WalletFragment.
     }
 
     @Override
-    public void onRequestPermissionsResult(int requestCode, @NonNull String permissions[], @NonNull int[] grantResults) {
+    public void onRequestPermissionsResult(int requestCode, @NonNull String permissions[],
+                                           @NonNull int[] grantResults) {
         Log.d(TAG, "onRequestPermissionsResult()");
         switch (requestCode) {
             case Helper.PERMISSIONS_REQUEST_CAMERA:

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

@@ -16,21 +16,16 @@
 
 package com.m2049r.xmrwallet;
 
-import android.app.Fragment;
-import android.content.ClipData;
-import android.content.ClipboardManager;
 import android.content.Context;
-import android.content.DialogInterface;
 import android.os.Bundle;
 import android.support.constraint.ConstraintLayout;
-import android.support.v7.app.AlertDialog;
+import android.support.v4.app.Fragment;
 import android.support.v7.widget.DividerItemDecoration;
 import android.support.v7.widget.RecyclerView;
 import android.util.Log;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
-import android.view.animation.Interpolator;
 import android.widget.Button;
 import android.widget.LinearLayout;
 import android.widget.ProgressBar;
@@ -38,9 +33,8 @@ import android.widget.TextView;
 
 import com.m2049r.xmrwallet.layout.TransactionInfoAdapter;
 import com.m2049r.xmrwallet.model.TransactionInfo;
-import com.m2049r.xmrwallet.model.Transfer;
 import com.m2049r.xmrwallet.model.Wallet;
-import com.m2049r.xmrwallet.model.WalletManager;
+import com.m2049r.xmrwallet.util.Helper;
 
 import java.text.NumberFormat;
 import java.util.List;
@@ -69,9 +63,9 @@ public class WalletFragment extends Fragment implements TransactionInfoAdapter.O
         clProgress = (ConstraintLayout) view.findViewById(R.id.clProgress);
         llUnconfirmedAmount = (LinearLayout) view.findViewById(R.id.llUnconfirmedAmount);
         tvBalance = (TextView) view.findViewById(R.id.tvBalance);
-        tvBalance.setText(getDisplayAmount(0));
+        tvBalance.setText(Helper.getDisplayAmount(0));
         tvUnconfirmedAmount = (TextView) view.findViewById(R.id.tvUnconfirmedAmount);
-        tvUnconfirmedAmount.setText(getDisplayAmount(0));
+        tvUnconfirmedAmount.setText(Helper.getDisplayAmount(0));
         tvBlockHeightProgress = (TextView) view.findViewById(R.id.tvBlockHeightProgress);
 
         bSend = (Button) view.findViewById(R.id.bSend);
@@ -175,23 +169,6 @@ public class WalletFragment extends Fragment implements TransactionInfoAdapter.O
     private long firstBlock = 0;
     private String walletTitle = null;
 
-    private String getDisplayAmount(long amount) {
-        String s = Wallet.getDisplayAmount(amount);
-        int lastZero = 0;
-        int decimal = 0;
-        for (int i = s.length() - 1; i >= 0; i--) {
-            if ((lastZero == 0) && (s.charAt(i) != '0')) lastZero = i + 1;
-            // TODO i18n
-            if (s.charAt(i) == '.') {
-                decimal = i;
-                break;
-            }
-        }
-        //Log.d(TAG, decimal + "/" + lastZero + "/" + s);
-        int cutoff = Math.max(lastZero, decimal + 2);
-        return s.substring(0, cutoff);
-    }
-
     private void updateStatus(Wallet wallet) {
         Log.d(TAG, "updateStatus()");
         if (walletTitle == null) {
@@ -200,8 +177,8 @@ public class WalletFragment extends Fragment implements TransactionInfoAdapter.O
         }
         long balance = wallet.getBalance();
         long unlockedBalance = wallet.getUnlockedBalance();
-        tvBalance.setText(getDisplayAmount(unlockedBalance));
-        tvUnconfirmedAmount.setText(getDisplayAmount(balance - unlockedBalance));
+        tvBalance.setText(Helper.getDisplayAmount(unlockedBalance));
+        tvUnconfirmedAmount.setText(Helper.getDisplayAmount(balance - unlockedBalance));
         // balance cannot be less than unlockedBalance
         /*if (balance != unlockedBalance) {
             llPendingAmount.setVisibility(View.VISIBLE);

app/src/main/java/com/m2049r/xmrwallet/service/WalletService.java

@@ -19,10 +19,7 @@ package com.m2049r.xmrwallet.service;
 import android.app.Notification;
 import android.app.PendingIntent;
 import android.app.Service;
-import android.content.Context;
 import android.content.Intent;
-import android.graphics.Bitmap;
-import android.graphics.BitmapFactory;
 import android.os.Binder;
 import android.os.Bundle;
 import android.os.Handler;
@@ -30,13 +27,11 @@ import android.os.IBinder;
 import android.os.Looper;
 import android.os.Message;
 import android.os.Process;
-import android.support.v4.app.NotificationCompat;
 import android.util.Log;
 
 import com.m2049r.xmrwallet.R;
 import com.m2049r.xmrwallet.WalletActivity;
 import com.m2049r.xmrwallet.model.PendingTransaction;
-import com.m2049r.xmrwallet.model.TransactionHistory;
 import com.m2049r.xmrwallet.model.Wallet;
 import com.m2049r.xmrwallet.model.WalletListener;
 import com.m2049r.xmrwallet.model.WalletManager;
@@ -44,6 +39,8 @@ import com.m2049r.xmrwallet.util.Helper;
 import com.m2049r.xmrwallet.util.TxData;
 
 public class WalletService extends Service {
+    public static boolean Running = false;
+
     final static String TAG = "WalletService";
     final static int NOTIFICATION_ID = 2049;
 
@@ -400,9 +397,6 @@ public class WalletService extends Service {
 
     @Override
     public void onCreate() {
-        //mNM = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
-        //showNotification();
-
         // We are using a HandlerThread and a Looper to avoid loading and closing
         // concurrency
         MoneroHandlerThread thread = new MoneroHandlerThread("WalletService",
@@ -419,8 +413,6 @@ public class WalletService extends Service {
     @Override
     public void onDestroy() {
         Log.d(TAG, "onDestroy()");
-        // Cancel the persistent notification.
-        //mNM.cancel(NOTIFICATION);
         if (this.listener != null) {
             Log.w(TAG, "onDestroy() with active listener");
             // no need to stop() here because the wallet closing should have been triggered
@@ -438,7 +430,8 @@ public class WalletService extends Service {
 
     @Override
     public int onStartCommand(Intent intent, int flags, int startId) {
-        // when the activity satrts the service, it expects to start it for a new wallet
+        Running = true;
+        // when the activity starts the service, it expects to start it for a new wallet
         // the service is possibly still occupied with saving the last opened wallet
         // so we queue the open request
         // this should not matter since the old activity is not getting updates
@@ -514,6 +507,7 @@ public class WalletService extends Service {
         }
         stopForeground(true);
         stopSelf();
+        Running = false;
     }
 
     private Wallet loadWallet(String walletName, String walletPassword) {

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

@@ -19,10 +19,11 @@ package com.m2049r.xmrwallet.util;
 public class BarcodeData {
     public String address = null;
     public String paymentId = null;
-    //String amount = null:
+    public long amount = -1;
 
-    public BarcodeData(String address, String paymentId) {
+    public BarcodeData(String address, String paymentId, long amount) {
         this.address = address;
         this.paymentId = paymentId;
+        this.amount = amount;
     }
 }

app/src/main/java/com/m2049r/xmrwallet/util/Helper.java

@@ -27,6 +27,7 @@ import android.view.WindowManager;
 import android.view.inputmethod.InputMethodManager;
 
 import com.m2049r.xmrwallet.R;
+import com.m2049r.xmrwallet.model.Wallet;
 import com.m2049r.xmrwallet.model.WalletManager;
 
 import java.io.File;
@@ -135,5 +136,20 @@ public class Helper {
             return ((address.length() == 95) && ("4".indexOf(address.charAt(0)) >= 0));
         }
     }
-
+    static public String getDisplayAmount(long amount) {
+        String s = Wallet.getDisplayAmount(amount);
+        int lastZero = 0;
+        int decimal = 0;
+        for (int i = s.length() - 1; i >= 0; i--) {
+            if ((lastZero == 0) && (s.charAt(i) != '0')) lastZero = i + 1;
+            // TODO i18n
+            if (s.charAt(i) == '.') {
+                decimal = i;
+                break;
+            }
+        }
+        //Log.d(TAG, decimal + "/" + lastZero + "/" + s);
+        int cutoff = Math.max(lastZero, decimal + 2);
+        return s.substring(0, cutoff);
+    }
 }

app/src/main/res/values/strings.xml

@@ -22,6 +22,8 @@
     <string name="status_transaction_failed">Transaction failed!</string>
     <string name="status_transaction_prepare_failed">Could not create transaction!</string>
 
+    <string name="service_busy">I am still busy with your last wallet &#8230;</string>
+
     <string name="prompt_password">Password for</string>
     <string name="bad_password">Bad password!</string>
     <string name="bad_wallet">Wallet does not exists!</string>

doc/FAQ.md

@@ -2,6 +2,7 @@
 
 ## What features does it have?
 
+- Support for Android >= 5.0 with ARM processor
 - Testnet and Mainnet
 - Generate new wallets
 - Recover wallets form mnemonic seed or from keys
@@ -15,8 +16,7 @@
 - Access to daemon with username/password and nonstandard port
 - Only 5 decimal places shown in transactions (full amount in details - click on transaction)
 - All significant figures shown in balance
-- QR Code scanning incl. payment ID - make sure to *ALWAYS* verify
-the scanned code is what it is advertised to be!
+- QR Code scanning - make sure to *ALWAYS* verify the scanned code is what it is advertised to be!
 
 ## I cannot select and copy the mnemonic seed
 Copying anything to the clipboard on Android exposes it to any other App running. So this