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add VideoProvider widget to play video in example app

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This commit is contained in:
Wenqi Li 2020-08-22 15:32:52 +08:00
parent 3699cb02a9
commit 48cd6f6663
1 changed files with 75 additions and 6 deletions
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81
example/lib/main.dart
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@ -6,6 +6,7 @@ import 'package:flutter/rendering.dart';
import 'package:permission_handler/permission_handler.dart';
import 'package:photo_gallery/photo_gallery.dart';
import 'package:transparent_image/transparent_image.dart';
import 'package:video_player/video_player.dart';
void main() {
runApp(MyApp());
@ -30,7 +31,7 @@ class _MyAppState extends State<MyApp> {
Future<void> initAsync() async {
if (await _promptPermissionSetting()) {
List<Album> collections =
await PhotoGallery.listAlbums(mediumType: MediumType.image);
await PhotoGallery.listAlbums(mediumType: MediumType.video);
setState(() {
_collections = collections;
_loading = false;
@ -224,13 +225,81 @@ class ViewerPage extends StatelessWidget {
),
body: Container(
alignment: Alignment.center,
child: FadeInImage(
fit: BoxFit.cover,
placeholder: MemoryImage(kTransparentImage),
image: PhotoProvider(mediumId: medium.id),
),
child: medium.mediumType == MediumType.image
? FadeInImage(
fit: BoxFit.cover,
placeholder: MemoryImage(kTransparentImage),
image: PhotoProvider(mediumId: medium.id),
)
: VideoProvider(
mediumId: medium.id,
),
),
),
);
}
}
class VideoProvider extends StatefulWidget {
final String mediumId;
const VideoProvider({
@required this.mediumId,
});
@override
_VideoProviderState createState() => _VideoProviderState();
}
class _VideoProviderState extends State<VideoProvider> {
VideoPlayerController _controller;
File _file;
@override
void initState() {
WidgetsBinding.instance.addPostFrameCallback((_) {
initAsync();
});
super.initState();
}
Future<void> initAsync() async {
try {
_file = await PhotoGallery.getFile(mediumId: widget.mediumId);
_controller = VideoPlayerController.file(_file);
_controller.initialize().then((_) {
// Ensure the first frame is shown after the video is initialized, even before the play button has been pressed.
setState(() {});
});
} catch (e) {
print("Failed : $e");
}
}
@override
Widget build(BuildContext context) {
return _controller == null || !_controller.value.initialized
? Container()
: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
AspectRatio(
aspectRatio: _controller.value.aspectRatio,
child: VideoPlayer(_controller),
),
FlatButton(
onPressed: () {
setState(() {
_controller.value.isPlaying
? _controller.pause()
: _controller.play();
});
},
child: Icon(
_controller.value.isPlaying ? Icons.pause : Icons.play_arrow,
),
),
],
);
}
}