当我的网址不起作用时，我需要调整一个错误侦听器，该侦听器在textview中设置离线状态。我不知道该如何精确调整。或返回假的意思是什么？任何帮助将不胜感激。
这是我的媒体播放器:
lv_tracks.setOnItemClickListener(new AdapterView.OnItemClickListener(){
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
if (isNetworkAvailable()) {
mSelectedTrackTitle.setText(stations[position]);
// mSelectedTrackImage.setImageResource(images[position]);
nowplaying.setText("Now Playing");
mPlayerControl.setImageResource(R.drawable.ic_pause_circle_filled);
Resources res = getResources();
String[] links = res.getStringArray(R.array.links);
String url = links[position];
// Toast.makeText(MainActivity.this,url,Toast.LENGTH_SHORT).show();
if (mMediaPlayer.isPlaying()) {
Log.d("abc", "playing and now going to reset : " + url);
try {
mMediaPlayer.pause();
mMediaPlayer.stop();
mMediaPlayer.release();
mMediaPlayer = new MediaPlayer();
mMediaPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC);
mMediaPlayer.setDataSource(url);
mMediaPlayer.prepare();
mMediaPlayer.start();
} catch (IOException e) {
nowplaying.setText("Offline");
Toast.makeText(MainActivity.this,"SERVER IS DOWN",Toast.LENGTH_SHORT).show();
//mMediaPlayer.release();
e.printStackTrace();
}
} else {
try {
Log.d("abc", "in else part :" + url);
mMediaPlayer = new MediaPlayer();
mMediaPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC);
mMediaPlayer.setDataSource(url);
mMediaPlayer.prepare();
mMediaPlayer.start();
} catch (IOException e) {
nowplaying.setText("Offline");
Toast.makeText(MainActivity.this,"SERVER IS DOWN",Toast.LENGTH_SHORT).show();
//mMediaPlayer.release();
e.printStackTrace();
}
return;
}
} else {
Toast.makeText(MainActivity.this, "No Internet Connection", Toast.LENGTH_SHORT).show();
}
}
});
Logcat(首次选择时):
10/12 17:07:54.426 20080-20091 / indusradio.pk W / MediaPlayer-JNI:
MediaPlayer最终定稿未发布10-12 17:07:54.426
20080-20091 / indusradio.pk I / MediaPlayer本机:Pid:20080 MediaPlayer
破坏者10-12 17:08:29.478 20080-20096 / indusradio.pk
D / MediaPlayerNative:消息:MEDIA_ERROR(100)，
ext1 = MEDIA_ERROR_UNKNOWN(1)，ext2 = 0x80000000 10-12 17:08:29.480
20080-20096 / indusradio.pk E / MediaPlayerNative:错误(1，-2147483648)
10-12 17:08:29.480 20080-20096 / indusradio.pk D / MediaPlayer原生
[notify]:[1204]回调应用listenerNotNull = 1，发送= 0 10-12
17:08:29.487 20080-20080 / indusradio.pk D / HwRTBlurUtils:检查模糊
HwToast-Toast的样式，themeResId:0x7f0900b4，上下文:
com.example.maham.indusradio.MainActivity @ 77db462，Nhwext:6，获取
模糊:使用禁用
android.graphics.drawable.NinePatchDrawable@c363c7 10-12 17:08:29.505
20080-20080 / indusradio.pk W / System.err:java.io.IOException:准备
失败。:status = 0x1 10-12 17:08:29.506 20080-20080 / indusradio.pk
W / System.err:位于android.media.MediaPlayer._prepare(本机方法)
10-12 17:08:29.507 20080-20080 / indusradio.pk W / System.err:at
android.media.MediaPlayer.prepare(MediaPlayer.java:1313)10-12
17:08:29.507 20080-20080 / indusradio.pk W / System.err:at
com.example.maham.indusradio.MainActivity $ 3.onItemClick(MainActivity.java:174)
有时它会崩溃，并且花费大约20秒的时间才能显示脱机状态。
最佳答案
您可以将文本设置为
mMediaPlayer = new MediaPlayer();
mMediaPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC);
mMediaPlayer.setDataSource(url);
mMediaPlayer.setOnPreparedListener(new MediaPlayer.OnPreparedListener() {
@Override
public void onPrepared(MediaPlayer mp) {
mMediaPlayer.start();
}
});
mMediaPlayer.setOnErrorListener(new MediaPlayer.OnErrorListener() {
@Override
public boolean
onError(MediaPlayer mp, int what, int extra) {
return false;
}
});
mMediaPlayer.prepareAsync();
} catch (IOException e) {
nowplaying.setText("OFFLINE")
e.printStackTrace();
}
关于java - 如何在媒体播放器中调整setOnErrorListener并将文本 View 中的状态设置为“脱机”，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/52773449/