音乐文件播放45秒，然后在android应用程序中停止

MediaPlayer mediaPlayer = new MediaPlayer();
mediaPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC);
mediaPlayer.setDataSource(url);
mediaPlayer.setBufferSize(1024 * 10); // 设置缓冲区大小
mediaPlayer.prepareAsync();
mediaPlayer.setOnPreparedListener(new MediaPlayer.OnPreparedListener() {
    @Override
    public void onPrepared(MediaPlayer mp) {
        mp.start();
    }
});

// 确保没有类似以下的代码
new Handler().postDelayed(new Runnable() {
    @Override
    public void run() {
        mediaPlayer.stop();
    }
}, 45000); // 45秒后停止播放

ConnectivityManager connectivityManager = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo networkInfo = connectivityManager.getActiveNetworkInfo();
if (networkInfo != null && networkInfo.isConnected()) {
    // 网络可用，继续播放
} else {
    // 网络不可用，暂停播放
    mediaPlayer.pause();
}