Add even more prompts (specifically for location) - thanks Google Play :/

app/src/main/java/nodomain/freeyourgadget/gadgetbridge/activities/ControlCenterv2.java

@@ -89,6 +89,8 @@ public class ControlCenterv2 extends AppCompatActivity
         implements NavigationView.OnNavigationItemSelectedListener, GBActivity {
 
     public static final int MENU_REFRESH_CODE = 1;
+    public static final String ACTION_REQUEST_PERMISSIONS
+            = "nodomain.freeyourgadget.gadgetbridge.activities.controlcenter.requestpermissions";
     private static PhoneStateListener fakeStateListener;
 
     //needed for KK compatibility
@@ -123,6 +125,9 @@ public class ControlCenterv2 extends AppCompatActivity
                 case DeviceService.ACTION_REALTIME_SAMPLES:
                     handleRealtimeSample(intent.getSerializableExtra(DeviceService.EXTRA_REALTIME_SAMPLE));
                     break;
+                case ACTION_REQUEST_PERMISSIONS:
+                    checkAndRequestPermissions(false);
+                    break;
             }
         }
     };
@@ -234,6 +239,7 @@ public class ControlCenterv2 extends AppCompatActivity
         filterLocal.addAction(GBApplication.ACTION_NEW_DATA);
         filterLocal.addAction(DeviceManager.ACTION_DEVICES_CHANGED);
         filterLocal.addAction(DeviceService.ACTION_REALTIME_SAMPLES);
+        filterLocal.addAction(ACTION_REQUEST_PERMISSIONS);
         LocalBroadcastManager.getInstance(this).registerReceiver(mReceiver, filterLocal);
 
         refreshPairedDevices();
@@ -250,7 +256,7 @@ public class ControlCenterv2 extends AppCompatActivity
                 // Put up a dialog explaining why we need permissions (Polite, but also Play Store policy)
                 // When accepted, we open the Activity for Notification access
                 DialogFragment dialog = new NotifyListenerPermissionsDialogFragment();
-                dialog.show(getSupportFragmentManager(), "PermissionsDialogFragment");
+                dialog.show(getSupportFragmentManager(), "NotifyListenerPermissionsDialogFragment");
             }
         }
 
@@ -263,11 +269,11 @@ public class ControlCenterv2 extends AppCompatActivity
                     // Put up a dialog explaining why we need permissions (Polite, but also Play Store policy)
                     // When accepted, we open the Activity for Notification access
                     DialogFragment dialog = new NotifyPolicyPermissionsDialogFragment();
-                    dialog.show(getSupportFragmentManager(), "PermissionsDialogFragment");
+                    dialog.show(getSupportFragmentManager(), "NotifyPolicyPermissionsDialogFragment");
                 }
             }
             // Check all the other permissions that we need to for Android M + later
-            checkAndRequestPermissions();
+            checkAndRequestPermissions(true);
         }
 
         ChangeLog cl = createChangeLog();
@@ -405,7 +411,7 @@ public class ControlCenterv2 extends AppCompatActivity
     }
 
     @TargetApi(Build.VERSION_CODES.M)
-    private void checkAndRequestPermissions() {
+    private void checkAndRequestPermissions(boolean showDialogFirst) {
         List<String> wantedPermissions = new ArrayList<>();
 
         if (ContextCompat.checkSelfPermission(this, Manifest.permission.BLUETOOTH) == PackageManager.PERMISSION_DENIED)
@@ -478,15 +484,20 @@ public class ControlCenterv2 extends AppCompatActivity
                     }
                 }
                 wantedPermissions.removeAll(shouldNotAsk);
-            } else {
+            } else if (!showDialogFirst) {
                 // Permissions have not been asked yet, but now will be
                 prefs.getPreferences().edit().putBoolean("permissions_asked", true).apply();
             }
 
             if (!wantedPermissions.isEmpty()) {
+                if (showDialogFirst) {
+                    // Show a dialog - thus will then call checkAndRequestPermissions(false)
+                    DialogFragment dialog = new LocationPermissionsDialogFragment();
+                    dialog.show(getSupportFragmentManager(), "LocationPermissionsDialogFragment");
+                } else {
                     GB.toast(this, getString(R.string.permission_granting_mandatory), Toast.LENGTH_LONG, GB.ERROR);
                     ActivityCompat.requestPermissions(this, wantedPermissions.toArray(new String[0]), 0);
-                GB.toast(this, getString(R.string.permission_granting_mandatory), Toast.LENGTH_LONG, GB.ERROR);
+                }
             }
         }
 
@@ -579,4 +590,25 @@ public class ControlCenterv2 extends AppCompatActivity
         }
     }
 
+    /// Called from checkAndRequestPermissions - this puts up a dialog explaining we need permissions, and then calls checkAndRequestPermissions (via an intent) when 'ok' pressed
+    public static class LocationPermissionsDialogFragment extends DialogFragment {
+        ControlCenterv2 controlCenter;
+
+        @Override
+        public Dialog onCreateDialog(Bundle savedInstanceState) {
+            // Use the Builder class for convenient dialog construction
+            AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
+            Context context = getContext();
+            builder.setMessage(context.getString(R.string.permission_location,
+                            getContext().getString(R.string.app_name),
+                            getContext().getString(R.string.ok)))
+                    .setPositiveButton(R.string.ok, new DialogInterface.OnClickListener() {
+                        public void onClick(DialogInterface dialog, int id) {
+                            Intent intent = new Intent(ACTION_REQUEST_PERMISSIONS);
+                            LocalBroadcastManager.getInstance(getContext()).sendBroadcast(intent);
+                        }
+                    });
+            return builder.create();
+        }
+    }
 }

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

@@ -1185,8 +1185,9 @@
     <string name="about_additional_contributions">Many thanks to all unlisted contributors for contributing code, translations, support, ideas, motivation, bug reports, money… ✊</string>
     <string name="about_links">Links</string>
     <string name="permission_granting_mandatory">All these permissions are required and instability might occur if not granted</string>
-    <string name="permission_notification_listener">%1$s needs access to Notifications in order to display them on your watch.\n\nPlease tap \'%2$s\' then \'%1$s\' and enable \'Allow Notification Access\', then tap \'Back\' to return to %1$s</string>
-    <string name="permission_notification_policy_access">%1$s needs access to Do Not Disturb settings in order to honour them on your watch.\n\nPlease tap \'%2$s\' then \'%1$s\' and enable \'Allow Do Not Disturb\', then tap \'Back\' to return to %1$s</string>
+    <string name="permission_notification_listener">%1$s needs access to Notifications in order to display them on your watch when your phone\'s screen is off.\n\nPlease tap \'%2$s\' then \'%1$s\' and enable \'Allow Notification Access\', then tap \'Back\' to return to %1$s</string>
+    <string name="permission_notification_policy_access">%1$s needs access to Do Not Disturb settings in order to honour them on your watch when your phone\'s screen is off.\n\nPlease tap \'%2$s\' then \'%1$s\' and enable \'Allow Do Not Disturb\', then tap \'Back\' to return to %1$s</string>
+    <string name="permission_location">%1$s needs access to your location in the background to allow it to stay connected to your watch even when your screen is off.\n\nPlease tap \'%2$s\' to agree.</string>
     <string name="error_version_check_extreme_caution">CAUTION: Error when checking version information! You should not continue! Saw version name \"%s\"</string>
     <string name="require_location_provider">Location must be enabled</string>
     <string name="companiondevice_pairing">CompanionDevice Pairing</string>