94 lines
2.4 KiB
Dart
94 lines
2.4 KiB
Dart
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import 'dart:async';
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import 'package:flutter/services.dart';
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import 'package:flutter/material.dart';
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class GstPlayerTextureController {
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static const MethodChannel _channel = MethodChannel('flutter_gstreamer_player');
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int textureId = 0;
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static int _id = 0;
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Future<int> initialize(String pipeline) async {
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// No idea why, but you have to increase `_id` first before pass it to method channel,
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// if not, receiver of method channel always received 0
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GstPlayerTextureController._id = GstPlayerTextureController._id + 1;
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textureId = await _channel.invokeMethod('PlayerRegisterTexture', {
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'pipeline': pipeline,
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'playerId': GstPlayerTextureController._id,
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});
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return textureId;
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}
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Future<Null> dispose() {
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return _channel.invokeMethod('dispose', {'textureId': textureId});
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}
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bool get isInitialized => textureId != null;
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}
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class GstPlayer extends StatefulWidget {
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String pipeline;
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GstPlayer({Key? key, required this.pipeline}) : super(key: key);
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@override
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State<GstPlayer> createState() => _GstPlayerState();
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}
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class _GstPlayerState extends State<GstPlayer> {
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final _controller = GstPlayerTextureController();
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@override
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void initState() {
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initializeController();
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super.initState();
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}
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@override
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void didUpdateWidget(GstPlayer oldWidget) {
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if (widget.pipeline != oldWidget.pipeline) {
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initializeController();
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}
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super.didUpdateWidget(oldWidget);
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}
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Future<Null> initializeController() async {
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await _controller.initialize(
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widget.pipeline,
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);
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setState(() {});
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}
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@override
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Widget build(BuildContext context) {
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var currentPlatform = Theme.of(context).platform;
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switch (currentPlatform) {
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case TargetPlatform.linux:
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case TargetPlatform.android:
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return Container(
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child: _controller.isInitialized
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? Texture(textureId: _controller.textureId)
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: null,
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);
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break;
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case TargetPlatform.iOS:
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String viewType = _controller.textureId.toString();
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final Map<String, dynamic> creationParams = <String, dynamic>{};
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return UiKitView(
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viewType: viewType,
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layoutDirection: TextDirection.ltr,
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creationParams: creationParams,
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creationParamsCodec: const StandardMessageCodec(),
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);
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break;
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default:
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throw UnsupportedError('Unsupported platform view');
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}
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}
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}
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