如何使用数据绑定实现ExoPlayer？

android {
    ...
    dataBinding {
        enabled = true
    }
}

<layout xmlns:android="http://schemas.android.com/apk/res/android">
    <data>
        <variable
            name="player"
            type="com.example.Player" />
    </data>
    
    <FrameLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent">
        
        <com.google.android.exoplayer2.ui.PlayerView
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            app:player="@{player.exoPlayer}" />

    </FrameLayout>
</layout>

public class Player {
    private SimpleExoPlayer exoPlayer;
    
    public Player() {
        // 初始化ExoPlayer实例
        exoPlayer = new SimpleExoPlayer.Builder(context).build();
    }
    
    public SimpleExoPlayer getExoPlayer() {
        return exoPlayer;
    }
}

public class MainActivity extends AppCompatActivity {
    private ActivityMainBinding binding;
    private Player player;
    
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        
        binding = DataBindingUtil.setContentView(this, R.layout.activity_main);
        player = new Player();
        binding.setPlayer(player);
    }
}