deveco studio 实现多个视频播放代码

以下是使用 DevEco Studio 实现多个视频播放的示例代码：

XML 布局文件：

<DirectionalLayout
    ohos:id="$+id:video_container"
    ohos:height="match_parent"
    ohos:width="match_parent"
    ohos:orientation="vertical">
    
    <VideoPlayer
        ohos:id="$+id:video_player1"
        ohos:height="match_content"
        ohos:width="match_parent" />

    <VideoPlayer
        ohos:id="$+id:video_player2"
        ohos:height="match_content"
        ohos:width="match_parent" />

    <VideoPlayer
        ohos:id="$+id:video_player3"
        ohos:height="match_content"
        ohos:width="match_parent" />
</DirectionalLayout>

Java 代码：

import ohos.agp.components.VideoPlayer;
import ohos.app.Context;
import ohos.media.player.Player;

public class VideoPlayerActivity extends AbilitySlice {
    private VideoPlayer videoPlayer1;
    private VideoPlayer videoPlayer2;
    private VideoPlayer videoPlayer3;

    @Override
    public void onStart(Intent intent) {
        super.onStart(intent);
        super.setUIContent(ResourceTable.Layout_video_player);

        // 获取视频播放器控件的引用
        videoPlayer1 = (VideoPlayer) findComponentById(ResourceTable.Id_video_player1);
        videoPlayer2 = (VideoPlayer) findComponentById(ResourceTable.Id_video_player2);
        videoPlayer3 = (VideoPlayer) findComponentById(ResourceTable.Id_video_player3);

        // 创建 MediaPlayer 对象并设置数据源
        HMediaPlayer mediaPlayer1 = new HMediaPlayer();
        mediaPlayer1.setSource(new HUri("path/to/video1.mp4"));

        HMediaPlayer mediaPlayer2 = new HMediaPlayer();
        mediaPlayer2.setSource(new HUri("path/to/video2.mp4"));

        HMediaPlayer mediaPlayer3 = new HMediaPlayer();
        mediaPlayer3.setSource(new HUri("path/to/video3.mp4"));

        // 将 MediaPlayer 对象与 VideoPlayer 控件关联
        videoPlayer1.setPlayer(mediaPlayer1);
        videoPlayer2.setPlayer(mediaPlayer2);
        videoPlayer3.setPlayer(mediaPlayer3);

        // 准备视频播放
        mediaPlayer1.prepare();
        mediaPlayer2.prepare();
        mediaPlayer3.prepare();

        // 开始播放视频
        mediaPlayer1.start();
        mediaPlayer2.start();
        mediaPlayer3.start();
    }
}

以上示例代码中，我们首先在 XML 布局文件中创建了三个 VideoPlayer 控件，然后在 Java 代码中获取了这些控件的引用。接下来，我们分别为每个视频创建了一个 HMediaPlayer 对象，并设置了数据源。最后，我们将 MediaPlayer 对象与 VideoPlayer 控件关联，并依次调用了 prepare() 和 start() 方法，开始播放视频。

需要注意的是，在实际应用中，您需要根据实际情况对代码进行适当的修改和优化。