VX-N3

https://developer.android.com/docs/quality-guidelines/core-app-quality

app/src/main/java/eu/faircode/email/ActivityMain.java

@@ -36,6 +36,7 @@ import java.util.List;
 
 public class ActivityMain extends ActivityBase implements FragmentManager.OnBackStackChangedListener, SharedPreferences.OnSharedPreferenceChangeListener {
     private static final long SPLASH_DELAY = 1500L; // milliseconds
+    private static final long RESTORE_STATE_INTERVAL = 3 * 60 * 1000L; // milliseconds
     private static final long SERVICE_START_DELAY = 5 * 1000L; // milliseconds
 
     @Override
@@ -165,8 +166,16 @@ public class ActivityMain extends ActivityBase implements FragmentManager.OnBack
                         Intent view = new Intent(ActivityMain.this, ActivityView.class)
                                 .addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
 
+                        // VX-N3
+                        // https://developer.android.com/docs/quality-guidelines/core-app-quality
+                        long now = new Date().getTime();
+                        long last = prefs.getLong("last_launched", 0L);
+                        if (now - last > RESTORE_STATE_INTERVAL)
+                            view.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK);
+
                         Intent saved = args.getParcelable("intent");
                         if (saved == null) {
+                            prefs.edit().putLong("last_launched", now).apply();
                             startActivity(view, options);
                             if (sync_on_launch)
                                 ServiceUI.sync(ActivityMain.this, null);