Error when setting autoPlay: false #229

budo385 · 2019-11-04T22:35:35Z

════════ Exception caught by gesture ═══════════════════════════════════════════════════════════════
The following NoSuchMethodError was thrown while handling a gesture:
The getter '_duration' was called on null.
Receiver: null
Tried calling: _duration

When the exception was thrown, this was the stack:
#0 Object.noSuchMethod (dart:core-patch/object_patch.dart:51:5)
#1 Duration.>= (dart:core/duration.dart:173:63)
#2 _CupertinoControlsState._playPause (package:chewie/src/cupertino_controls.dart:498:45)
#3 GestureRecognizer.invokeCallback (package:flutter/src/gestures/recognizer.dart:182:24)
#4 TapGestureRecognizer._checkUp (package:flutter/src/gestures/tap.dart:365:11)
...
Handler: "onTap"
Recognizer: TapGestureRecognizer#d9726
debugOwner: GestureDetector
state: ready
won arena
finalPosition: Offset(49.5, 619.5)
finalLocalPosition: Offset(10.5, 18.5)
sent tap down
════════════════════════════════════════════════════════════════════════════════════════════════════

════════ (2) Exception caught by gesture ═══════════════════════════════════════════════════════════
The getter '_duration' was called on null.
Receiver: null
Tried calling: _duration
════════════════════════════════════════════════════════════════════════════════════════════════════

freeweed · 2019-11-14T11:00:54Z

same issue here

yuanjiong · 2019-11-19T12:23:56Z

same issue

RenanDelfanti · 2019-11-21T00:03:55Z

Work around: autoInitialize: true

ouardia-y · 2019-12-10T15:51:53Z

I created a pull request a couple weeks ago that fixes this issue. It has yet to be approved.

saqibcare · 2019-12-20T10:32:01Z

Got same error on real ios device, is there any update?
IOS REAL DEVICE
When i am trying to playing the video from a video file, it is displaying nothing just a blank screen with controls. and when i am pressing the play button, then i getting the following exception.
Note : When i am playing video from http link, then video is playing fine.
ANDROID REAL DEVICE
It is working fine.

flutter doctor
#Doctor summary (to see all details, run flutter doctor -v):
[✓] Flutter (Channel unknown, v1.9.1+hotfix.6, on Mac OS X 10.15.1 19B88, locale en-GB)
 
[✓] Android toolchain - develop for Android devices (Android SDK version 29.0.2)
[✓] Xcode - develop for iOS and macOS (Xcode 11.2.1)
[✓] Chrome - develop for the web
[✓] Android Studio (version 3.5)
[✓] Connected device (3 available)

• No issues found!

Pubspec.yaml

chewie: 0.9.8
video_player: 0.10.4+1

I got the same issue on IOS Real device, Is there any updates?


════════ Exception caught by gesture ═══════════════════════════════════════════
The following NoSuchMethodError was thrown while handling a gesture:
The getter '_duration' was called on null.
Receiver: null
Tried calling: _duration

When the exception was thrown, this was the stack
#0      Object.noSuchMethod  (dart:core-patch/object_patch.dart:51:5)
#1      Duration.>=  (dart:core/duration.dart:173:63)
#2      _CupertinoControlsState._playPause 
package:chewie/src/cupertino_controls.dart:498
#3      GestureRecognizer.invokeCallback 
package:flutter/…/gestures/recognizer.dart:182
#4      TapGestureRecognizer._checkUp 
package:flutter/…/gestures/tap.dart:365
...
Handler: "onTap"
Recognizer: TapGestureRecognizer#c6b94
    debugOwner: GestureDetector
    state: ready
    won arena
    finalPosition: Offset(59.5, 733.0)
    finalLocalPosition: Offset(12.5, 9.5)
    sent tap down
════════════════════════════════════════════════════════════════════════════════

Code of my video class


import 'dart:io';

import 'package:flutter/material.dart';
import 'package:portfolio/Models/FileData.dart';
import 'package:portfolio/Models/globals.dart';
import 'package:portfolio/appbar/appbar.dart';
import 'package:portfolio/repositories/root_repo.dart';
import 'package:video_player/video_player.dart';
import 'package:chewie/chewie.dart';

class VideoPlayerScreen extends StatefulWidget {
  final FileData fileData;
  VideoPlayerScreen({
    @required this.fileData, Key key
  }) : super(key: key);

  @override
  _VideoPlayerScreenState createState() => _VideoPlayerScreenState();
}

class _VideoPlayerScreenState extends State<VideoPlayerScreen> {
  Global globalVariables;
  VideoPlayerController controller;
  File videoFile;
  String rootPath;

  ChewieController _chewieController;
  @override
  void initState() {
     super.initState();
      if(Root.rootObject.rootPath == "" )
      {
        Root.rootObject.getRootPath();
      }
      videoFile = File(Root.rootObject.rootPath + "/" + widget.fileData.name);
      bool fileExist = new File(videoFile.path).existsSync();
      print(fileExist);
      print(videoFile.path);
      controller = new VideoPlayerController.file(videoFile);
    _chewieController = new ChewieController(
      videoPlayerController: controller,
      aspectRatio: 16 / 9,
      autoInitialize: true,
      looping: true,
      /*errorBuilder: (context, errorMessage){
        return Center(
          child: Text(
            errorMessage = "Sorry, video is not avaiable!!!",
            style: TextStyle(color: Colors.black),
          )
        );
      },*/
    );
  }
  
  @override
  Widget build(BuildContext context) {
    Size size = MediaQuery.of(context).size;
    globalVariables = new Global(size);
    return  Stack(children: <Widget>[        
        Center(
          child: Container(
          decoration: BoxDecoration(
            color: globalVariables.backgroundColor,
          ),
          child: Image.asset(
            'assets/bg.png',
           width: size.width,
           height: size.height,
           fit: BoxFit.fill,
        ))),
    Scaffold(
      backgroundColor: Colors.transparent,
      appBar: MyAppBar(
        //  titleText: Text('Butterfly Video'),
      ),
      body: Padding(
        padding: const EdgeInsets.all(8.0),
        child: Chewie(
          controller: _chewieController,
        ),
      )
      )]
  );
  }

  @override
  void dispose() {
        // IMPORTANT to dispose of all the used resources
    controller.dispose();
    _chewieController.dispose();
    super.dispose();

  }

}

mountaineer59 · 2020-02-28T10:58:57Z

setting autoPlay: false, autoInitialize: true, might do the trick

ghost · 2020-11-18T08:27:02Z

Hi, i'm facing the same issue (the getter _duration was called on null) and solutions mentioned above didn't help me fix it. Everything was working fine until i updated packages (chewie and videoplayer). Does somebody have other suggestions how to fix this error? Thanks in advance.

ghost · 2020-11-18T10:40:06Z

Hi, i'm facing the same issue (the getter _duration was called on null) and solutions mentioned above didn't help me fix it. Everything was working fine until i updated packages (chewie and videoplayer). Does somebody have other suggestions how to fix this error? Thanks in advance.

after downgrading back to chewie 0.9.10 and videoplayer 0.10.12+5 , the issue is gone.

nstrelow · 2020-11-18T11:32:06Z

@pasty161 Can you provide a minimal example for which this is failing?
Thanks

DFelten · 2020-11-25T08:00:18Z

setting autoPlay: false, autoInitialize: true, might do the trick

Unfortunately this doesn't help. The duration error is still there.

mahmoudalaa97 · 2020-12-04T13:37:13Z

setting autoPlay: false, autoInitialize: true, might do the trick

Still Not Working. 😞

maoamid · 2020-12-05T20:38:24Z

I think it is a problem in flutter video widget. Please read this
flutter/flutter#48670
there are some workarounds to force video player initialization even if the duration is unknown (live streams for example).
The problem seems to appear only on iOS

nstrelow · 2020-12-06T13:44:55Z

@maoamid The link sends you to chewies issue. ^^
flutter/flutter#48670

maoamid · 2020-12-07T23:30:55Z

@nstrelow my mistake, I updated the link. Thank you!

nathanaelneveux · 2020-12-15T21:03:53Z

I think it is a problem in flutter video widget. Please read this
flutter/flutter#48670
there are some workarounds to force video player initialization even if the duration is unknown (live streams for example).
The problem seems to appear only on iOS

The problem described above is in fact with this plugin - specifically in cupertino_controls.dart

You'll notice that in material_controls.dart build function there are checks to make sure nothing is loaded if duration == null

children: <Widget>[
    _latestValue != null &&
        !_latestValue.isPlaying &&
        _latestValue.duration == null ||
        _latestValue.isBuffering
            ? const Expanded(
                      child: const Center(
                        child: const CircularProgressIndicator(),
                      ),
                    )
            : _buildHitArea(),

There is no such check in cupertino_controls.dart

children: <Widget>[
              _buildTopBar(
                  backgroundColor, iconColor, barHeight, buttonPadding),
              _buildHitArea(),

If you force load material controls on iOS you no longer get the The getter '_duration' was called on null. error.

I'm using a workaround to get HLS videos to load in iOS (per flutter/plugins#48670) but was still getting the _duration error in chewie using the latest version - some digging and I found the above discrepancies between cupertino and material controls.

maoamid · 2020-12-24T20:13:00Z

I think it is a problem in flutter video widget. Please read this
flutter/flutter#48670
there are some workarounds to force video player initialization even if the duration is unknown (live streams for example).
The problem seems to appear only on iOS

The problem described above is in fact with this plugin - specifically in cupertino_controls.dart

You'll notice that in material_controls.dart build function there are checks to make sure nothing is loaded if duration == null
children: <Widget>[
    _latestValue != null &&
        !_latestValue.isPlaying &&
        _latestValue.duration == null ||
        _latestValue.isBuffering
            ? const Expanded(
                      child: const Center(
                        child: const CircularProgressIndicator(),
                      ),
                    )
            : _buildHitArea(),
There is no such check in cupertino_controls.dart
children: <Widget>[
              _buildTopBar(
                  backgroundColor, iconColor, barHeight, buttonPadding),
              _buildHitArea(),
If you force load material controls on iOS you no longer get the The getter '_duration' was called on null. error.

I'm using a workaround to get HLS videos to load in iOS (per flutter/plugins#48670) but was still getting the _duration error in chewie using the latest version - some digging and I found the above discrepancies between cupertino and material controls.

@nathanaelneveux thanks a lot, you helped me with this obsesrvation. Merry Christmas!

nstrelow · 2021-02-18T09:55:50Z

This should be fixed with 0.12.1

VladyslavBondarenko mentioned this issue Apr 17, 2020

chewie/video_player flutter The getter '_duration' was called on null flutter/flutter#54961

Closed

DFelten mentioned this issue Nov 25, 2020

Fix duration called on null for cupertino controls #406

Merged

nstrelow closed this as completed Feb 18, 2021

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Error when setting autoPlay: false #229

Error when setting autoPlay: false #229

budo385 commented Nov 4, 2019

freeweed commented Nov 14, 2019

yuanjiong commented Nov 19, 2019

RenanDelfanti commented Nov 21, 2019

ouardia-y commented Dec 10, 2019

saqibcare commented Dec 20, 2019

mountaineer59 commented Feb 28, 2020

ghost commented Nov 18, 2020

ghost commented Nov 18, 2020

nstrelow commented Nov 18, 2020

DFelten commented Nov 25, 2020

mahmoudalaa97 commented Dec 4, 2020

maoamid commented Dec 5, 2020 •

edited

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nstrelow commented Dec 6, 2020

maoamid commented Dec 7, 2020

nathanaelneveux commented Dec 15, 2020

maoamid commented Dec 24, 2020

nstrelow commented Feb 18, 2021

Error when setting autoPlay: false #229

Error when setting autoPlay: false #229

Comments

budo385 commented Nov 4, 2019

freeweed commented Nov 14, 2019

yuanjiong commented Nov 19, 2019

RenanDelfanti commented Nov 21, 2019

ouardia-y commented Dec 10, 2019

saqibcare commented Dec 20, 2019

mountaineer59 commented Feb 28, 2020

ghost commented Nov 18, 2020

ghost commented Nov 18, 2020

nstrelow commented Nov 18, 2020

DFelten commented Nov 25, 2020

mahmoudalaa97 commented Dec 4, 2020

maoamid commented Dec 5, 2020 • edited Loading

nstrelow commented Dec 6, 2020

maoamid commented Dec 7, 2020

nathanaelneveux commented Dec 15, 2020

maoamid commented Dec 24, 2020

nstrelow commented Feb 18, 2021

maoamid commented Dec 5, 2020 •

edited

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