I have a situation where I need to use local_auth which expects FlutterFragmentActivity as main activity, but on the other hand I also wanna use video_player package which expects FlutterActivity as main activity.
Main Activity for local_auth:
package //your package name for eg.com.example.filename
import androidx.annotation.NonNull;
import io.flutter.embedding.android.FlutterActivity
import io.flutter.embedding.android.FlutterFragmentActivity
import io.flutter.embedding.engine.FlutterEngine
import io.flutter.plugins.GeneratedPluginRegistrant
class MainActivity: FlutterFragmentActivity() {
override fun configureFlutterEngine(#NonNull flutterEngine: FlutterEngine) {
GeneratedPluginRegistrant.registerWith(flutterEngine);
}
}
Main Activity for video_player:
package //your package name for eg.com.example.filename
import android.content.Context
import android.os.Bundle
import androidx.annotation.NonNull
import io.flutter.embedding.android.FlutterActivity
import io.flutter.embedding.engine.FlutterEngine
import io.flutter.plugins.videoplayer.*
class MainActivity : FlutterActivity() {
override fun configureFlutterEngine(#NonNull flutterEngine:
FlutterEngine) {
super.configureFlutterEngine(flutterEngine)
flutterEngine.getPlugins().add(VideoPlayerPlugin())
}
}
Is there a way to combine both activities so that both packages get their own required FlutterActivity and FlutterFragmentActivity for functioning?
If I use main activity as FlutterFragmentActivity app crashes while compiling and video_player package works smoothly, and if I use FlutterActivity app compiles successfully, but local_auth didn't worked because it requires FlutterFragmentActivity for auth apis to function.
Related
I want to play an audio as the app background music(without button click/autoplay). The code seen like no problem, but cant display.Did I do anything wrong with the code?
import 'package:flutter/material.dart';
import 'package:flame/game.dart';
import 'package:flame/input.dart';
import 'package:flame_audio/flame_audio.dart';
import 'package:flutter/widgets.dart';
void main() {
runApp(GameWidget(game: Audio()));
}
class Audio extends FlameGame with TapDetector {
#override
Future<void> onLoad() async {
super.onLoad();
}
#override
void onTapUp(TapUpInfo) {
FlameAudio.bgm.play('assets/Sound3.mp3');
}
}
pubspec.yaml
assets:
- assets/Sound3.mp3
[The Error Show in C:\flutter_windows_2.10.4-stable\flutter\packages\flutter\lib\src\services\asset_bundle.dart][1]
[1]: https://i.stack.imgur.com/p383i.png
const AssetImage('icons/heart.png', package: 'my_icons');
Assets used by the package (or plugin) itself should also be fetched using the package argument.
line: https://docs.flutter.dev/development/ui/assets-and-images
I'm using injectable and get_it in flutter dart (following the very popular Reso coder)
I have a simple abstract class:
import 'package:injectable/injectable.dart';
//#injectable
abstract class IRandomQuantityRepository {
Future<int> getRandomQuantity();
}
and I have two simple concrete implementations of it:
import 'package:injectable/injectable.dart';
#dev
#injectable
class DevRandomQuantityRepository implements IRandomQuantityRepository {
const DevRandomQuantityRepository();
#override
Future<int> getRandomQuantity() async => 90;
}
and
import 'dart:math';
import 'package:injectable/injectable.dart';
#prod
#injectable
class RandomQuantityRepository implements IRandomQuantityRepository {
const RandomQuantityRepository();
#override
Future<int> getRandomQuantity() async => Random().nextInt(100);
}
Lastly, I have an injection.dart:
import 'package:get_it/get_it.dart';
import 'package:injectable/injectable.dart';
import 'package:moontreeapp/injection.config.dart';
final GetIt getIt = GetIt.instance;
#InjectableInit(preferRelativeImports: false)
void configureInjection(String env) {
$initGetIt(getIt, environment: env);
}
abstract class Env {
static const prod = 'prod';
static const dev = 'dev';
}
besides all that I have a bloc that wants to use stuff:
#injectable
class RandomQuantityBloc
extends Bloc<RandomQuantityEvent, RandomQuantityState> {
final IRandomQuantityRepository _quantityFacade; // notice this final...
doesn't that look good? I think so. So then I run this command to make the generated code flutter pub run build_runner watch
But I get a message:
[RandomQuantityBloc] depends on unregistered type [IRandomQuantityRepository]... Did you forget to annotate the above class(s) or their implementation with #injectable?
or add the right environment keys?
Ok, so that's cool, lets add it to the interface:
import 'package:injectable/injectable.dart';
#injectable // <-- added
abstract class IRandomQuantityRepository {
Future<int> getRandomQuantity();
}
but then I get a new error:
> [IRandomQuantityRepository] is abstract and can not be registered directly!
> if it has a factory or a create method annotate it with #factoryMethod
> 14 │ abstract class IRandomQuantityRepository {
> │ ^^^^^^^^^^^^^^^^^^^^^^^^^
In the past I've handled dependency injection manually, so I'm new to these packages, what am I missing here?
Besides all that, the real issue is that I can't switch the injection based on the environment. I can use get_it to get a concrete dependency but not one based on environment like in this test:
/// has no effect:
configureInjection(Env.dev);
/// gets prod version:
final devRandomQuantity = getIt<RandomQuantityRepository>();
So something about this whole set up isn't configuring the Injections correctly... What am I missing?
One final thing that might be useful is to see the generated code:
// GENERATED CODE - DO NOT MODIFY BY HAND
// **************************************************************************
// InjectableConfigGenerator
// **************************************************************************
import 'package:get_it/get_it.dart' as _i1;
import 'package:injectable/injectable.dart' as _i2;
import 'package:moontreeapp/application/quantity/bloc/randomquantity_bloc.dart'
as _i5;
import 'package:moontreeapp/domain/quantity/i_randomquantity_repository.dart' as _i6;
import 'package:moontreeapp/infrastructure/quantity/dev_randomquantity_repository.dart'
as _i3;
import 'package:moontreeapp/infrastructure/quantity/mock_randomquantity_repository.dart'
as _i4;
import 'package:moontreeapp/infrastructure/quantity/randomquantity_repository.dart'
as _i7;
const String _dev = 'dev';
const String _prod = 'prod';
// ignore_for_file: unnecessary_lambdas
// ignore_for_file: lines_longer_than_80_chars
/// initializes the registration of provided dependencies inside of [GetIt]
_i1.GetIt $initGetIt(_i1.GetIt get,
{String? environment, _i2.EnvironmentFilter? environmentFilter}) {
final gh = _i2.GetItHelper(get, environment, environmentFilter);
gh.factory<_i3.DevRandomQuantityRepository>(
() => _i3.DevRandomQuantityRepository(),
registerFor: {_dev});
gh.factory<_i5.RandomQuantityBloc>(
() => _i5.RandomQuantityBloc(get<_i6.IRandomQuantityRepository>()));
gh.factory<_i7.RandomQuantityRepository>(() => _i7.RandomQuantityRepository(),
registerFor: {_prod});
return get;
}
Do I put #injectable on abstract classes or not?
ok, so I guess injectable can't see what the class implements so you have to make it explicit. also, I missed that #dev isn't built in, you have to make it.
So this is the proper way to use the decorations
#Environment('dev')
#Injectable(as: IRandomQuantityRepository)
class DevRandomQuantityRepository implements IRandomQuantityRepository {
const DevRandomQuantityRepository();
#override
Future<Either<QuantFailure, Quantity>> getRandomQuantity() async =>
right(Quantity(Amount(900.0001), Decimal(4)));
}
and that way this does work:
configureInjection(Env.dev);
final mockRandomQuantity = getIt<IRandomQuantityRepository>();
await mockRandomQuantity.getRandomQuantity();
// 90
Is it possible to navigate out of a Flame Engine game widget into other Flutter widgets?
The app below immediately loads the game widget. How can navigation outside of the Game widget to another Flutter widget be achieved?
Flutter version: 2.2.3
Dart version: 2.13.4
Flame Engine version: flame-1.0.0-rc8
main.dart
import 'package:flame/flame.dart';
import 'package:flame/game.dart';
import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';
import 'package:my_game.dart';
void main() {
runApp(
GameWidget(
game: MyGame(),
),
);
}
my_game.dart
import 'package:flame/extensions.dart';
import 'package:flame/game.dart';
import 'package:flame/gestures.dart';
import 'package:flutter/gestures.dart';
import 'package:flutter/material.dart';
class MyGame extends BaseGame with TapDetector {
#override
void update(double dt) { /* TODO */ }
#override
void render(Canvas canvas) { /* TODO */ }
#override
void onTapUp(TapUpDetails details) {
// How to navigate outside of the game widget?
}
}
You can do two things:
Either put the GameWidget in a Stack and handle navigation by Navigator from Flutter and remove and add the GameWidget to the widget tree when deemed necessary. Flutter Navigation docs
Use the Overlays API in Flame to handle the state from within Flame instead. Flame docs
For using the overlays you add the overlays that you want to have accessible when you create the GameWidget and then you call game.overlays.add to render a specific widget, and game.overlays.remove to stop rendering it.
I do recommend that you upgrade from rc8 to rc13, since the docs are for that version and things are more stable in general.
I want to upload files in the firebase storage, but i have an error of appcheck after many researches, i saw that i have to activate Appcheck on firebase, but also to activate it on my application
in a google video on youtube, i have seen that i have to call this function while building my app:
initFirebase(){
FirebaseApp.initializeApp(/*context*/ this);
FirebaseAppCheck firebaseAppCheck = FirebaseAppCheck.getInstance();
firebaseAppCheck.installAppCheckProviderFactory(
SafetyNetAppCheckProviderFactory.getInstance());
}
But i have errors, that the methods "initializeApp";"getInstance" and "installAppCheckProviderFactory" are not defined,
Your MainActivity.kt shoul look like this:
package com.example.app //your package name
import androidx.annotation.NonNull
import io.flutter.embedding.android.FlutterActivity
import io.flutter.embedding.engine.FlutterEngine
import io.flutter.plugin.common.MethodChannel
import com.google.firebase.FirebaseApp
import com.google.firebase.appcheck.FirebaseAppCheck
import com.google.firebase.appcheck.debug.DebugAppCheckProviderFactory
class MainActivity: FlutterActivity() {
private val CHANNEL = "samples.flutter.dev/battery"
override fun configureFlutterEngine(#NonNull flutterEngine: FlutterEngine) {
super.configureFlutterEngine(flutterEngine)
MethodChannel(flutterEngine.dartExecutor.binaryMessenger, CHANNEL).setMethodCallHandler {
call, result ->
FirebaseApp.initializeApp(/*context=*/this)
val firebaseAppCheck = FirebaseAppCheck.getInstance()
firebaseAppCheck.installAppCheckProviderFactory(
DebugAppCheckProviderFactory.getInstance()
)
}
}
}
And your main.dart like this:
import 'package:firebase_app_check/firebase_app_check.dart';
import 'package:firebase_core/firebase_core.dart';
import 'package:flutter/material.dart';
Future<void> main() async {
WidgetsFlutterBinding.ensureInitialized();
await Firebase.initializeApp();
await FirebaseAppCheck.instance.activate();
}
I got an error for unhandled plugin exception for google_fonts and shared_preferences:
Unhandled Exception: MissingPluginException(No implementation found
for method getAll on channel plugins.flutter.io/shared_preferences)
Unhandled Exception: MissingPluginException(No implementation found
for method getApplicationSupportDirectory on channel
plugins.flutter.io/path_provider) MethodChannel.invokeMethod
(package:flutter/src/services/platform_channel.dart:332:12)
_localPath (package:google_fonts/src/file_io_desktop_and_mobile.dart:28:27)
googleFontsTextStyle
(package:google_fonts/src/google_fonts_base.dart:107:3)
import androidx.annotation.NonNull
import io.flutter.embedding.engine.FlutterEngine
import io.flutter.embedding.android.FlutterFragmentActivity
import io.flutter.plugins.GeneratedPluginRegistrant
class MainActivity: FlutterActivity() {
override fun configureFlutterEngine(#NonNull flutterEngine: FlutterEngine) {
GeneratedPluginRegistrant.registerWith(flutterEngine);
}
}
By adding above code solved the problem it was suggested on GitHub
link
I'm solved with change code from mainactivity.kt or mainactivity.java.
import androidx.annotation.NonNull
import io.flutter.embedding.engine.FlutterEngine
import io.flutter.embedding.android.FlutterFragmentActivity
import io.flutter.plugins.GeneratedPluginRegistrant
class MainActivity: FlutterFragmentActivity() {
override fun configureFlutterEngine(#NonNull flutterEngine:
FlutterEngine) {
GeneratedPluginRegistrant.registerWith(flutterEngine)
}
}
after that, flutter clean and run