Flutter使用Android原生播放器详解

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");
    }
}

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);
    }
}

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;
    }
}

<?xml version="1.0" encoding="utf-8"?>
<com.videoplayer.player.VideoView xmlns:android="Http://schemas.android.com/apk/res/android"
    android:id="@+id/videoView"
    android:layout_width="match_parent"
    android:layout_height="match_parent" />

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