Flutter3引用原生播放器

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Flutter3引用原生播放器

2024-02-13 02:41| 来源: 网络整理| 查看: 265

接上篇：Flutter3引用原生播放器-IOS(Swift)篇

安卓端原生播放器的接入思路与ios基本一致，所以本篇就不废话了，直接上代码：

创建插件VideoViewPlugin实现FlutterPlugin：

package io.flutter.plugins.videoplayer; import android.util.Log; import androidx.annotation.NonNull; import io.flutter.embedding.engine.plugins.FlutterPlugin; import io.flutter.embedding.engine.plugins.activity.ActivityAware; import io.flutter.embedding.engine.plugins.activity.ActivityPluginBinding; public class VideoViewPlugin implements FlutterPlugin, ActivityAware { private final static String TAG = "VideoViewPlugin"; FlutterPluginBinding fpBinding; @Override public void onAttachedToEngine(@NonNull FlutterPluginBinding binding) { fpBinding = binding; Log.e(TAG, "onAttachedToEngine"); } @Override public void onDetachedFromEngine(@NonNull FlutterPluginBinding binding) { Log.e(TAG, "onDetachedFromEngine"); } @Override public void onAttachedToActivity(@NonNull ActivityPluginBinding apBinding) { fpBinding.getPlatformViewRegistry().registerViewFactory("plugins.my_video_player/view", new VideoViewFactory(fpBinding, apBinding)); Log.e(TAG, "onAttachedToActivity"); } @Override public void onDetachedFromActivityForConfigChanges() { Log.e(TAG, "onDetachedFromActivityForConfigChanges"); } @Override public void onReattachedToActivityForConfigChanges(@NonNull ActivityPluginBinding binding) { Log.e(TAG, "onReattachedToActivityForConfigChanges"); } @Override public void onDetachedFromActivity() { Log.e(TAG, "onDetachedFromActivity"); } }

由于引用视频播放器时需要用到Activity的context，所以实现了ActivityAware接口，在onAttachedToActivity方法中注册PlatformViewFactory！

创建VideoViewFactory实现PlatformViewFactory：

package io.flutter.plugins.videoplayer; import android.content.Context; import io.flutter.Log; import io.flutter.embedding.engine.plugins.FlutterPlugin; import io.flutter.embedding.engine.plugins.activity.ActivityPluginBinding; import io.flutter.plugin.common.StandardMessageCodec; import io.flutter.plugin.platform.PlatformView; import io.flutter.plugin.platform.PlatformViewFactory; public class VideoViewFactory extends PlatformViewFactory { private final static String TAG = "VideoViewFactory"; private final FlutterPlugin.FlutterPluginBinding fpBinding; private final ActivityPluginBinding apBinding; public VideoViewFactory(FlutterPlugin.FlutterPluginBinding fpBinding, ActivityPluginBinding apBinding) { super(StandardMessageCodec.INSTANCE); Log.e(TAG, "VideoViewFactory"); this.fpBinding = fpBinding; this.apBinding = apBinding; } @Override public PlatformView create(Context context, int viewId, Object args) { Log.e(TAG, "PlatformView-create:" + args.toString()); return new VideoViewPlayer(args.toString(), fpBinding, apBinding); } }

创建VideoViewPlayer，实现PlatformView和MethodChannel.MethodCallHandler：

package io.flutter.plugins.videoplayer; import android.app.Activity; import android.content.Context; import android.util.Log; import android.view.LayoutInflater; import android.view.View; import androidx.annotation.NonNull; import androidx.annotation.Nullable; import com.th.kjjl_flutter.R; import com.videoplayer.player.VideoView; import io.flutter.embedding.engine.plugins.FlutterPlugin; import io.flutter.embedding.engine.plugins.activity.ActivityPluginBinding; import io.flutter.plugin.common.MethodCall; import io.flutter.plugin.common.MethodChannel; import io.flutter.plugin.platform.PlatformView; public class VideoViewPlayer implements PlatformView, MethodChannel.MethodCallHandler { private final static String TAG = "VideoPlayerView"; Activity context; private VideoView videoView; private MethodChannel methodChannel; VideoViewPlayer(String viewId, FlutterPlugin.FlutterPluginBinding fpBinding, ActivityPluginBinding apBinding) { this.context = apBinding.getActivity(); videoView = (VideoView) LayoutInflater.from(context).inflate(R.layout.video_player, null); methodChannel = new MethodChannel(fpBinding.getBinaryMessenger(), "my_video_player_" + viewId); methodChannel.setMethodCallHandler(this); } @Override public void onMethodCall(@NonNull MethodCall call, @NonNull MethodChannel.Result result) { Log.e(TAG, "call.method>>" + call.method); switch (call.method) { case "setUrl": String url = call.arguments.toString(); videoView.initVideoController(context); videoView.setUrl(url); break; case "start": videoView.start(); break; case "pause": videoView.pause(); break; case "release": videoView.pause(); videoView.release(); break; case "stopFullScreen": videoView.stopFullScreen(); break; default: result.notImplemented(); } } @Nullable @Override public View getView() { return videoView; } @Override public void dispose() { Log.e(TAG, "dispose>>"); videoView.pause(); videoView.release(); methodChannel.setMethodCallHandler(null); methodChannel = null; } }

其中的VideoView即引用的第三方播放器库，你可以根据自己情况，使用常见的安卓端开源播放器如GSY，饺子，DKPlayer等！

video_player.xml：

在MainActivity中注册插件：

class MainActivity : FlutterActivity() { override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) flutterEngine!!.plugins.add(VideoViewPlugin()) } }

注意：不要在GeneratedPluginRegistrant中去注册插件包括IOS，这个类由系统自动生成其它第三方插件注册代码！安卓端在MainActivity中注册，IOS端在AppDelegate中注册！

flutter中的引用以及通信方法，上一篇已经写了，本篇就不再重复了！需要注意的是，插件名，插件id，methodChannel等，安卓，IOS和Flutter三端一定要一致！

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Flutter3引用原生播放器

Flutter3引用原生播放器

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