timnew
commented
3 years ago I'm not 100% this is a flutter bug or there is something critical missed from the code.
As I'm actually expecting to get a callback from Flutter Engine when all the routes has been popped from the root Navigator. So I can manually update the fragment stack.
I tried to use FlutterUiDisplayListener to capture the callback from Flutter, but FlutterUiDisplayListener.onFlutterUiNoLongerDisplayed was not called on all routes are popped, but called on FlutterActivity/FlutterFragment is closed.
TahaTesser
hamdikahloun
huycozy
I'm adding a few new screens built with Flutter onto an exiting Android app with a pre-warmed engine. Everything works so smoothly until I tried to close the UI from the flutter side.
In stand-alone flutter app, when all routes popped from the root Navigator, the app is closed automatically. But in this app, the app popped into a funny screen.
This is the
homeor theMaterialAppWhen I clicked
Exit, it runsNavigator.pop(context);I was expecting the
This is the same screen captured the by emulator screenshot tool, which is a blank screen
FlutterActivityis finished, but it doesn't, and this is what I see on the screen:I can leave this screen by press physical back, I can return to my native screen.
If I re-show the flutter screen again, I would see
It renders a transparent view on it, but you can still see flutter debug ribbon.
If I triggers hot reload right now, I can see logs:
Steps to Reproduce
This is flutter side code
This is the android side code
Expected results:
When I pressed "Exit" button in flutter app, the last route is popped via
Navigator.pop, the activity/fragment should be removed from the Android navigation stack, same as physical back button is pressed. I tried to hostFlutterFragmentin a activity or useFlutterActivitydirectly, both has the renders the transparent view.Actual results: A transparent activity/fragment is still there, which can be dismissed by pressing physical back
Logs are attached below, expand it to see:
Logs
``` ``` ``` ⋊> flutter analyze Analyzing mobile-android... info • Unused import: 'package:flutter_module/screens/feedback/FeedbackDialog.dart' • flutter_module/lib/screens/app/FlutterApp.dart:5:8 • unused_import info • Unused import: 'package:flutter_module/screens/profile/ProfileScreen.dart' • flutter_module/lib/screens/app/FlutterApp.dart:6:8 • unused_import 2 issues found. (ran in 4.7s) ``` ``` [✓] Flutter (Channel stable, 1.22.2, on Mac OS X 10.15.5 19F101, locale en-AU) • Flutter version 1.22.2 at /Users/tim.wen/Workspace/flutter • Framework revision 84f3d28555 (3 weeks ago), 2020-10-15 16:26:19 -0700 • Engine revision b8752bbfff • Dart version 2.10.2 [✓] Android toolchain - develop for Android devices (Android SDK version 29.0.3) • Android SDK at /Users/tim.wen/Library/Android/sdk • Platform android-29, build-tools 29.0.3 • ANDROID_HOME = Users/tim.wen/Library/Android/sdk • Java binary at: /Applications/Android Studio.app/Contents/jre/jdk/Contents/Home/bin/java • Java version OpenJDK Runtime Environment (build 1.8.0_242-release-1644-b3-6222593) • All Android licenses accepted. [✓] Xcode - develop for iOS and macOS (Xcode 12.1) • Xcode at /Applications/Xcode.app/Contents/Developer • Xcode 12.1, Build version 12A7403 • CocoaPods version 1.9.3 [!] Android Studio • Android Studio at /Applications/Android Studio 4.2 Preview.app/Contents ✗ Flutter plugin not installed; this adds Flutter specific functionality. ✗ Dart plugin not installed; this adds Dart specific functionality. • Java version OpenJDK Runtime Environment (build 1.8.0_242-release-1644-b3-6222593) [!] Android Studio (version 4.1) • Android Studio at /Applications/Android Studio.app/Contents ✗ Flutter plugin not installed; this adds Flutter specific functionality. ✗ Dart plugin not installed; this adds Dart specific functionality. • Java version OpenJDK Runtime Environment (build 1.8.0_242-release-1644-b3-6222593) [✓] VS Code (version 1.50.1) • VS Code at /Applications/Visual Studio Code.app/Contents • Flutter extension version 3.16.0 [✓] Connected device (1 available) • Android SDK built for x86 (mobile) • emulator-5554 • android-x86 • Android 10 (API 29) (emulator) ! Doctor found issues in 2 categories. ```