it's all good on android but not good on iOS.
whenever i try to enter the videoPlayerScreen
error occurs
I tryed another project with same class code ,
it was fine.
but in this project doens't work.
Here's my code
...
class _VideoTestState extends State<VideoTest> {
final FijkPlayer player = FijkPlayer();
#override
void initState() {
super.initState();
player.setDataSource( // ✅ App dies in here
'http://baishan.oversketch.com/2019/11/05/d07f2f1440e51b9680f4bcfe63b0ab67.MP4',
autoPlay: true);
}
#override
Widget build(BuildContext context) {
return Scaffold(
body: Container(
color: Colors.green,
child: Center(
child: FijkView(
player: player,
),
),
),
);
}
}
in Android studio when I enter it , it dies immediately, Log( Lost connection to device. )
but in Xcode show log like this.
I assume its package problem.
not sure about it but only difference between another project and this one is
another project has few package ( actually minimum packages to play video )
this one has alot include firebase things.
I tried ,
flutter clean ,
rm Podfile.lock
pod install.
is there any clue to solve this problem??
Related
I'm sorry if I am making a mistake here, but I think I've tried everything in my power to make it work and I couldn't, also I think there might be something going on here since new_version package isn't working right now (there is a thread on github currently running to solve it):
I am using flutter's in_app_update package https://pub.dev/packages/in_app_update to provide to the user, as you guessed it, app updates.
Code :
bool _once = true;
Future<void> checkForUpdate() async {
InAppUpdate.checkForUpdate().then((info) {
setState(() {
_updateInfo = info;
});
}).catchError((e) {
Get.defaultDialog(
title: "Error",
titleStyle: TextStyle(color: Colors.white),
backgroundColor: Color(0xff7C695F),
content: MyErrorWidget(e.toString(), false));
});
}
...
#override
Widget build(BuildContext context) {
if (_once) {
WidgetsBinding.instance?.addPostFrameCallback((_) => checkForUpdate());
_once = false;
}
...
Center(
child: Text('Update info: $_updateInfo'),
),
ElevatedButton(
child: Text('Update available : Perform Update'),
onPressed: _updateInfo?.updateAvailability ==
UpdateAvailability.updateAvailable
? () {
InAppUpdate.performImmediateUpdate().catchError((e) {
showSnack(e.toString());
});
}
: null),
...
I know that this package is made for release mode, and I am receiving this screen when running in debug mode, which is normal (maybe?)Screenshot of app.
I am aware that you have to make two bundles with different versions codes but same signatures, upload them to Internal Testing inside the play store( so that google play store signs the versions). Install the lowest number version (which for me was versionCode : 11) and then push a new appbundle with new version number ( for me : 12).
As I launched the play store again I indeed noticed that a new update was available :
Play store
But when launching the app (version code 11), The message that is always displayed is the one from 1, and there is no way to debug anything since it is only release mode, also I can't use the package new_version since changes were made to the play store pages which makes it unavailable atm.
Do you guys have any advice?
I'm using the cached_network_image library. If I set it up like this:
void main() {
runApp(MyApp());
}
class MyApp extends StatelessWidget {
#override
Widget build(BuildContext context) {
print('MyApp building');
return MaterialApp(
home: Scaffold(
body: HomeWidget(),
),
);
}
}
class HomeWidget extends StatelessWidget {
#override
Widget build(BuildContext context) {
return Center(
child: Container(
child: CachedNetworkImage(
imageUrl: "https://example.com/image/whatever.png",
placeholder: (context, url) => CircularProgressIndicator(),
errorWidget: (context, url, error) => Icon(Icons.error),
),
),
);
}
}
with a URL that is invalid (either because it returns a 404 or the server refuses the connection), then my IDE freezes and gives one of the following errors:
HttpExceptionWithStatus (HttpException: Invalid statusCode: 404, uri = https://example.com/image/whatever.png)
or this (if I change it to a non-existent host):
SocketException (SocketException: Failed host lookup: 'ksdhfkajsdhfkashdfkadshfk.com' (OS Error: No address associated with hostname, errno = 7))
What I would expect is for the CachedNetworkImage widget to just show the errorWidget, but it doesn't.
The creator of cached_network_image says (source):
If you have break on exceptions enabled the debugger stops, but that's because the dart VM doesn't always know whether an exception is caught or not. If you continue this still shouldn't freeze your app.
That was the key I needed. It is just the debugger stopping. You can hit the continue button or disable stopping on uncaught exceptions. The CachedNetworkImage widget will then show the errorWidget as expected.
In VS Code you can uncheck this in the bottom left of the debug pannel.
I believe there is a similar setting in Android studio based on this post.
I also experienced this issue, and could not find a flutter way to solve the 404 issue which crashes the app.
As a solution, I am using imagekit as a CDN and we can tell imagekit to display a default image if the original image is missing: https://docs.imagekit.io/features/default-images
I am using Flutter and whenever I want to to play a sound it crashes and throw me this:
iOS => call startHeadlessService, playerId d580eb03-1cab-4a44-9b7d-5b80ac32a53c
iOS => call play, playerId d580eb03-1cab-4a44-9b7d-5b80ac32a53c
play!
Lost connection to device.
I don't know why, I followed step by step.
Here's the code I write if it's helping:
import 'package:flutter/material.dart';
import 'package:audioplayers/audio_cache.dart';
void main() => runApp(XylophoneApp());
class XylophoneApp extends StatelessWidget {
#override
Widget build(BuildContext context) {
return MaterialApp(
home: Scaffold(
body: SafeArea(
child: Center(
child: FlatButton(
onPressed: () {
final player = AudioCache();
player.play('note1.wav');
},
child: Text('Play me!'),
),
),
),
),
);
}
}
And Here is my pubspec.yaml :
dependencies:
flutter:
sdk: flutter
cupertino_icons: ^0.1.2
audioplayers: ^0.16.0
I've done everthing that was in that course step by step, but instead of asking me to allow microphones ( that was in course ), the app just lost connection.
I don't know why, in the course never explain what to do if you meet errors.
Can you help me understand why is this happening and how can be handled? It would help me a lot. Thank you in advance!
The emulator is iPhone 11 pro max.
Also I tried running it by calling " flutter run " in the terminal
With the help of J. Saw from the comments above, we changed the package version from 0.16 to 0.10 and it's working
In production mode, is there a way to force a full restart of the application (I am not talking about a hot reload at development time!).
Practical use cases:
At initialization process the application detects that there is no network connection. The lack of network connectivity might have prevented a correct start up (e.g. loading of external resource such as JSON files...).
During the initial handshaking, new versions of some important resources need to be downloaded (kind of update).
In both use cases, I would like the application to proceed with a full restart, rather than having to build a complex logic at the ApplicationState level.
You could wrap your whole app into a statefulwidget. And when you want to restart you app, rebuild that statefulwidget with a child that possess a different Key.
This would make you loose the whole state of your app.
import 'package:flutter/material.dart';
void main() {
runApp(
RestartWidget(
child: MaterialApp(),
),
);
}
class RestartWidget extends StatefulWidget {
RestartWidget({this.child});
final Widget child;
static void restartApp(BuildContext context) {
context.findAncestorStateOfType<_RestartWidgetState>().restartApp();
}
#override
_RestartWidgetState createState() => _RestartWidgetState();
}
class _RestartWidgetState extends State<RestartWidget> {
Key key = UniqueKey();
void restartApp() {
setState(() {
key = UniqueKey();
});
}
#override
Widget build(BuildContext context) {
return KeyedSubtree(
key: key,
child: widget.child,
);
}
}
In this example you can reset your app from everywhere using RestartWidget.restartApp(context).
The flutter_phoenix package is based on Rémi Rousselet's answer, making it even simpler.
void main() {
runApp(
Phoenix(
child: App(),
),
);
}
Then when you need to restart the app, just call:
Phoenix.rebirth(context);
I developed the restart_app plugin to restart the whole app natively.
Update:
For anyone who get this exception:
MissingPluginException(No implementation found for method restartApp on channel restart)
Just stop and rebuild the app.
You can also use the runApp(new MyWidget) function to do something similar
This is what this function does:
Inflate the given widget and attach it to the screen.
The widget is given constraints during layout that force it to fill the entire screen. If you wish to align your widget to one side of the screen (e.g., the top), consider using the Align widget. If you wish to center your widget, you can also use the Center widget
Calling runApp again will detach the previous root widget from the screen and attach the given widget in its place. The new widget tree is compared against the previous widget tree and any differences are applied to the underlying render tree, similar to what happens when a StatefulWidget rebuilds after calling State.setState.
https://docs.flutter.io/flutter/widgets/runApp.html
So simple package: flutter_restart
dependencies:
flutter_restart: ^0.0.3
to use:
void _restartApp() async {
FlutterRestart.restartApp();
}
I just want to add Regarding I have Tried #Remi answer which works great on most of the cases to restart the app. The only problem with the answer is that some things if you are doing Navigation route extensively you probably go to a state which It gives you an error like,
The method 'restartApp' was called on null.
To resolve this error you have to know the Context and use Navigator.of(context).pop(); multiples times back. For me, the solution is that just go to the initial route. It will inject all the states from a new. Where you want to restart just add this Line.
Navigator.pushNamedAndRemoveUntil(context,'/',(_) => false);
If you want to only restart a specific widget then the Remi solution is awesome. Thanks for the solution Remi though. It help me understand states in flutter.
I have found Hossein's restart_app package also pretty useful for native restarts (not only on Flutter level).
To everyone having the MissingPluginException error, just reinstall the app again on the device, means that hot reload won't work. The app has native methods which need to compiled in the Android/iOS App.
I wanted to restart my app after logout.
so I used https://pub.dev/packages/flutter_phoenix (flutter phoenix).
It worked for me.
Install flutter_phoenix by running this command on your terminal inside your flutter app directory.
$ flutter pub add flutter_phoenix
Import it inside your "main.dart".
Wrap your root widget inside Phoenix.
runApp(
Phoenix(
child: MyApp()
));
Now you can call this wherever you want to restart your app :-
Phoenix.rebirth(context)
Note: flutter_phoenix does not restart the app on OS level, it only restarts the app on app level.
Thecnically this is not a restart but it will work for most of the scenarios:
// Remove any route in the stack
Navigator.of(context).popUntil((route) => false);
// Add the first route. Note MyApp() would be your first widget to the app.
Navigator.push(
context,
CupertinoPageRoute(builder: (context) => const MyApp()),
);
Follow the steps-
Go to your terminal and type in the following:
flutter pub add flutter_restart
This will update some dependencies in pubspec.yaml file.
Import the following package in whichever file you want to implement the restart code-
import 'package:flutter_restart/flutter_restart.dart';
Create a void function
void _restartApp() async {
await FlutterRestart.restartApp();
}
Write this wherever you want to start the app-
_restartApp();
I tried the above suggested methods and none of them worked and i was using getx.
so i ended up modified the accepted answer with a delay as a workaround and it works now.
class RestartAppWidget extends StatefulWidget {
RestartAppWidget({this.child});
final Widget child;
static void restartApp(BuildContext context) {
context.findAncestorStateOfType<_RestartAppWidgetState>().restartApp();
}
#override
_RestartAppWidgetState createState() => _RestartAppWidgetState();
}
class _RestartAppWidgetState extends State<RestartAppWidget> {
bool restarting = false;
void restartApp() async {
restarting = true; // restart variable is set to true
setState(() {});
Future.delayed(Duration(milliseconds: 300)).then((value) {
setState(() {
restarting = false; //restart variable is set to false
});
});
// setState(() {
// key = UniqueKey();
// });
}
#override
Widget build(BuildContext context) {
if (restarting) {
return SizedBox(); //an empty Sizedbox is displayed for 300 milliseconds you can add a loader if you want
}
return SizedBox(
child: widget.child,
);
}
}`
wrap the root widget with RestartAppWidget
runApp(RestartAppWidget(
child: MyApp(),
))
you can use this code to restart the app at flutter level
RestartAppWidget.restartApp(Get.context);
In production mode, is there a way to force a full restart of the application (I am not talking about a hot reload at development time!).
Practical use cases:
At initialization process the application detects that there is no network connection. The lack of network connectivity might have prevented a correct start up (e.g. loading of external resource such as JSON files...).
During the initial handshaking, new versions of some important resources need to be downloaded (kind of update).
In both use cases, I would like the application to proceed with a full restart, rather than having to build a complex logic at the ApplicationState level.
You could wrap your whole app into a statefulwidget. And when you want to restart you app, rebuild that statefulwidget with a child that possess a different Key.
This would make you loose the whole state of your app.
import 'package:flutter/material.dart';
void main() {
runApp(
RestartWidget(
child: MaterialApp(),
),
);
}
class RestartWidget extends StatefulWidget {
RestartWidget({this.child});
final Widget child;
static void restartApp(BuildContext context) {
context.findAncestorStateOfType<_RestartWidgetState>().restartApp();
}
#override
_RestartWidgetState createState() => _RestartWidgetState();
}
class _RestartWidgetState extends State<RestartWidget> {
Key key = UniqueKey();
void restartApp() {
setState(() {
key = UniqueKey();
});
}
#override
Widget build(BuildContext context) {
return KeyedSubtree(
key: key,
child: widget.child,
);
}
}
In this example you can reset your app from everywhere using RestartWidget.restartApp(context).
The flutter_phoenix package is based on Rémi Rousselet's answer, making it even simpler.
void main() {
runApp(
Phoenix(
child: App(),
),
);
}
Then when you need to restart the app, just call:
Phoenix.rebirth(context);
I developed the restart_app plugin to restart the whole app natively.
Update:
For anyone who get this exception:
MissingPluginException(No implementation found for method restartApp on channel restart)
Just stop and rebuild the app.
You can also use the runApp(new MyWidget) function to do something similar
This is what this function does:
Inflate the given widget and attach it to the screen.
The widget is given constraints during layout that force it to fill the entire screen. If you wish to align your widget to one side of the screen (e.g., the top), consider using the Align widget. If you wish to center your widget, you can also use the Center widget
Calling runApp again will detach the previous root widget from the screen and attach the given widget in its place. The new widget tree is compared against the previous widget tree and any differences are applied to the underlying render tree, similar to what happens when a StatefulWidget rebuilds after calling State.setState.
https://docs.flutter.io/flutter/widgets/runApp.html
So simple package: flutter_restart
dependencies:
flutter_restart: ^0.0.3
to use:
void _restartApp() async {
FlutterRestart.restartApp();
}
I just want to add Regarding I have Tried #Remi answer which works great on most of the cases to restart the app. The only problem with the answer is that some things if you are doing Navigation route extensively you probably go to a state which It gives you an error like,
The method 'restartApp' was called on null.
To resolve this error you have to know the Context and use Navigator.of(context).pop(); multiples times back. For me, the solution is that just go to the initial route. It will inject all the states from a new. Where you want to restart just add this Line.
Navigator.pushNamedAndRemoveUntil(context,'/',(_) => false);
If you want to only restart a specific widget then the Remi solution is awesome. Thanks for the solution Remi though. It help me understand states in flutter.
I have found Hossein's restart_app package also pretty useful for native restarts (not only on Flutter level).
To everyone having the MissingPluginException error, just reinstall the app again on the device, means that hot reload won't work. The app has native methods which need to compiled in the Android/iOS App.
I wanted to restart my app after logout.
so I used https://pub.dev/packages/flutter_phoenix (flutter phoenix).
It worked for me.
Install flutter_phoenix by running this command on your terminal inside your flutter app directory.
$ flutter pub add flutter_phoenix
Import it inside your "main.dart".
Wrap your root widget inside Phoenix.
runApp(
Phoenix(
child: MyApp()
));
Now you can call this wherever you want to restart your app :-
Phoenix.rebirth(context)
Note: flutter_phoenix does not restart the app on OS level, it only restarts the app on app level.
Thecnically this is not a restart but it will work for most of the scenarios:
// Remove any route in the stack
Navigator.of(context).popUntil((route) => false);
// Add the first route. Note MyApp() would be your first widget to the app.
Navigator.push(
context,
CupertinoPageRoute(builder: (context) => const MyApp()),
);
Follow the steps-
Go to your terminal and type in the following:
flutter pub add flutter_restart
This will update some dependencies in pubspec.yaml file.
Import the following package in whichever file you want to implement the restart code-
import 'package:flutter_restart/flutter_restart.dart';
Create a void function
void _restartApp() async {
await FlutterRestart.restartApp();
}
Write this wherever you want to start the app-
_restartApp();
I tried the above suggested methods and none of them worked and i was using getx.
so i ended up modified the accepted answer with a delay as a workaround and it works now.
class RestartAppWidget extends StatefulWidget {
RestartAppWidget({this.child});
final Widget child;
static void restartApp(BuildContext context) {
context.findAncestorStateOfType<_RestartAppWidgetState>().restartApp();
}
#override
_RestartAppWidgetState createState() => _RestartAppWidgetState();
}
class _RestartAppWidgetState extends State<RestartAppWidget> {
bool restarting = false;
void restartApp() async {
restarting = true; // restart variable is set to true
setState(() {});
Future.delayed(Duration(milliseconds: 300)).then((value) {
setState(() {
restarting = false; //restart variable is set to false
});
});
// setState(() {
// key = UniqueKey();
// });
}
#override
Widget build(BuildContext context) {
if (restarting) {
return SizedBox(); //an empty Sizedbox is displayed for 300 milliseconds you can add a loader if you want
}
return SizedBox(
child: widget.child,
);
}
}`
wrap the root widget with RestartAppWidget
runApp(RestartAppWidget(
child: MyApp(),
))
you can use this code to restart the app at flutter level
RestartAppWidget.restartApp(Get.context);