Added preference to enable/disable crash notifications

src/main/java/com/nutomic/syncthingandroid/service/SyncthingRunnable.java

@@ -55,6 +55,7 @@ public class SyncthingRunnable implements Runnable {
     private String[] mCommand;
     private String mErrorLog;
     private final File mLogFile;
+    private final SharedPreferences mPreferences;
 
     public enum Command {
         generate, // Generate keys, a config file and immediately exit.
@@ -71,6 +72,7 @@ public class SyncthingRunnable implements Runnable {
         mContext = context;
         mSyncthingBinary = mContext.getApplicationInfo().nativeLibraryDir + "/" + BINARY_NAME;
         mLogFile = new File(mContext.getExternalFilesDir(null), "syncthing.log");
+        mPreferences = PreferenceManager.getDefaultSharedPreferences(mContext);
         switch (command) {
             case generate:
                 mCommand = new String[]{ mSyncthingBinary, "-generate", mContext.getFilesDir().toString() };
@@ -96,6 +98,7 @@ public class SyncthingRunnable implements Runnable {
         mSyncthingBinary = mContext.getApplicationInfo().nativeLibraryDir + "/" + BINARY_NAME;
         mCommand = manualCommand;
         mLogFile = new File(mContext.getExternalFilesDir(null), "syncthing.log");
+        mPreferences = PreferenceManager.getDefaultSharedPreferences(mContext);
     }
 
     @Override
@@ -167,6 +170,8 @@ public class SyncthingRunnable implements Runnable {
                             .setAction(SyncthingService.ACTION_RESTART));
                     break;
                 default:
+                    Log.w(TAG, "Syncthing has crashed (exit code " + ret + ")");
+                    if (mPreferences.getBoolean("notify_crashes", false)) {
                         // Show notification to inform user about crash.
                         Intent intent = new Intent();
                         intent.setAction(android.content.Intent.ACTION_VIEW);
@@ -182,6 +187,7 @@ public class SyncthingRunnable implements Runnable {
                                 mContext.getSystemService(Context.NOTIFICATION_SERVICE);
                         nm.notify(NOTIFICATION_ID_CRASH, n);
                     }
+            }
         } catch (IOException | InterruptedException e) {
             Log.e(TAG, "Failed to execute syncthing binary or read output", e);
         } finally {
@@ -196,16 +202,14 @@ public class SyncthingRunnable implements Runnable {
      * Returns true if root is available and enabled in settings.
      */
     private boolean useRoot() {
-        SharedPreferences sp = PreferenceManager.getDefaultSharedPreferences(mContext);
+        return mPreferences.getBoolean(SyncthingService.PREF_USE_ROOT, false) && Shell.SU.available();
-        return sp.getBoolean(SyncthingService.PREF_USE_ROOT, false) && Shell.SU.available();
     }
 
     /**
      * Returns true if the experimental setting for using wake locks has been enabled in settings.
      */
     private boolean useWakeLock() {
-        SharedPreferences sp = PreferenceManager.getDefaultSharedPreferences(mContext);
+        return mPreferences.getBoolean(SyncthingService.PREF_USE_WAKE_LOCK, false);
-        return sp.getBoolean(SyncthingService.PREF_USE_WAKE_LOCK, false);
     }
 
     /**

src/main/res/values/strings.xml

@@ -357,6 +357,10 @@ Please report any problems you encounter via Github.</string>
     <!-- Summary for the log activity -->
     <string name="open_log_summary">Open the Syncthing and Android log window</string>
 
+    <string name="notify_crashes_title">Notify about Syncthing crashes</string>
+
+    <string name="notify_crashes_summary">Show a notification whenever a Syncthing crash is detected</string>
+
     <string name="syncthing_forum_title">Syncthing Forum</string>
     <string name="syncthing_forum_summary">Go to the Syncthing Forum</string>
     <string name="syncthing_forum_url" translatable="false">https://forum.syncthing.net/</string>

src/main/res/xml/app_settings.xml

@@ -154,6 +154,11 @@
                 android:action=".activities.LogActivity" />
         </Preference>
 
+        <CheckBoxPreference
+            android:key="notify_crashes"
+            android:title="@string/notify_crashes_title"
+            android:summary="@string/notify_crashes_summary"/>
+
         <EditTextPreference
             android:key="sttrace"
             android:title="@string/sttrace_title"