将合成滑块挂钩到MediaPlayer

import android.media.MediaPlayer;
import android.os.Bundle;
import android.widget.SeekBar;
import androidx.appcompat.app.AppCompatActivity;

public class MainActivity extends AppCompatActivity {

    private MediaPlayer mediaPlayer;
    private SeekBar seekBar;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        mediaPlayer = MediaPlayer.create(this, R.raw.your_audio_file);
        seekBar = findViewById(R.id.seekBar);

        seekBar.setMax(mediaPlayer.getDuration());

        mediaPlayer.setOnCompletionListener(mp -> {
            seekBar.setProgress(0);
        });

        seekBar.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
            @Override
            public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
                if (fromUser) {
                    mediaPlayer.seekTo(progress);
                }
            }

            @Override
            public void onStartTrackingTouch(SeekBar seekBar) {
                // 用户开始拖动滑块
            }

            @Override
            public void onStopTrackingTouch(SeekBar seekBar) {
                // 用户停止拖动滑块
            }
        });

        mediaPlayer.start();
    }

    @Override
    protected void onDestroy() {
        super.onDestroy();
        if (mediaPlayer != null) {
            mediaPlayer.release();
            mediaPlayer = null;
        }
    }
}