CODEWITHSUNDEEP
flutterdartagora.io
Tester12
Tester12

Reputation: 1011

How to take screenshot in flutter during video call?

I'm currently using agora SDK for a flutter video call. During the video call, I need to take a screenshot. Only on the video call screen, the screenshot is black and on other screens the screenshots are fine. By using RenderRepaintBoundary I can't able to take a screenshot,

Code used to take the screenshot:

Future<void> _capturePng() async {
    try {
      RenderRepaintBoundary boundary =
          _globalKey.currentContext.findRenderObject();
      ui.Image image = await boundary.toImage(pixelRatio: 3.0);
      ByteData byteData =
          await image.toByteData(format: ui.ImageByteFormat.png);
      var pngBytes = byteData.buffer.asUint8List();
      final result = await ImageGallerySaver.saveImage(pngBytes);
    } catch (e) {
      print(e);
    }  }  Widget build(BuildContext context) {
    return RepaintBoundary(
        key: _globalKey,
        child: Scaffold(
            backgroundColor: Colors.black,
            body: GestureDetector(
                onDoubleTap: () => _capturePng(),
                child: Screenshot(
                  controller: screenshotController,
                  child: Center(
                    child: Stack(
                      children: <Widget>[
                        _viewRows(),
                        _toolbar(),
                      ],
                    ),
                  ),
                ))));
}

issue screenshot:

working fine screenshot:

Agora SDK link

replace this below code with flutter main.dart sample

videocall.zip

Agora rtc version:agora_rtc_engine: ^1.0.7

Also tried using this plugin: screenshot: ^0.1.1 but still, the issue occurs

Upvotes: 3

Views: 2027

Answers (2)

Naung9
Naung9

Reputation: 244

I think your code for screenshoot is right. The problem may be in where you put the RepaintBoundary. In general, the key provided in RepaintBoundary will be able to screenshot it's whole child hierarchy. So I think the solution is to put your Widget which renders your live video feed inside RepaintBoundary as child. e.g

Widget build(context){
   return RepaintBoundary(
      key: _yourGlobalKey,
      child: _yourLiveVideoFeedWidget
   );
}

Upvotes: 1

meherdeep thakur
meherdeep thakur

Reputation: 873

I believe there’s a problem with your screenshot method declaration, this is the syntax that needs to be followed:

ScreenshotController screenshotController = ScreenshotController();

Upvotes: 0

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