我正在从 url 播放 mp3 文件,但在播放歌曲时 SeekBar 没有更新。
当我试图用力移动时,歌曲就会从头开始播放。
下面的代码我用来播放和更新 SeekBar。
我想创建一个跟踪媒体播放器进度的搜索栏,但效果不太好,音乐正在播放,但搜索栏保持空闲状态。我有遗漏什么吗?
我想我不是不打电话更新SeekBar()从正确位置开始的方法...所以尝试通过改变位置更新SeekBar()但没有工作...
我是不是错过了什么……?请帮忙......我是Android新手......
活动.java
Play = findViewById(R.id.Play_button);
Play.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
play (url);//Song Url
}
});
private void play(String url) {
if (mediaPlayer != null && mediaPlayer.isPlaying()) {
mediaPlayer.stop();
}
mediaPlayer = new MediaPlayer();
mediaPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC);
try {
mediaPlayer.setOnCompletionListener(new MediaPlayer.OnCompletionListener() {
public void onCompletion(MediaPlayer mp) {
try {
if (temp == playurl.length) {
temp = 0;
play(playurl[temp]);
t1.setText(mobileArray[temp]);
} else {
temp = temp + 1;
play(playurl[temp]);
t1.setText(mobileArray[temp]);
}
}catch(ArrayIndexOutOfBoundsException exception) {
temp = 0;
play(playurl[temp]);
t1.setText(mobileArray[temp]);
}
}
});
mediaPlayer.setDataSource(url);
} catch (IllegalArgumentException e) {
Toast.makeText(getApplicationContext(), "Please Check Your Internet Connection!", Toast.LENGTH_LONG).show();
} catch (SecurityException e) {
Toast.makeText(getApplicationContext(), "Please Check Your Internet Connection!", Toast.LENGTH_LONG).show();
} catch (IllegalStateException e) {
Toast.makeText(getApplicationContext(), "Please Check Your Internet Connection!", Toast.LENGTH_LONG).show();
} catch (IOException e) {
e.printStackTrace();
}catch (Exception ex){
String err = (ex.getMessage()==null)?"SD Card failed":ex.getMessage();
Log.e("sdcard-err2:",err);
}
try {
mediaPlayer.prepare();
} catch (IllegalStateException e) {
Toast.makeText(getApplicationContext(), "Please Check Your Internet Connection!", Toast.LENGTH_LONG).show();
} catch (IOException e) {
Toast.makeText(getApplicationContext(), "Please Check Your Internet Connection!", Toast.LENGTH_LONG).show();
}catch (Exception ex){
String err = (ex.getMessage()==null)?"SD Card failed":ex.getMessage();
Log.e("sdcard-err2:",err);
}
try {
mediaPlayer.start();
}catch (Exception ex){
String err = (ex.getMessage()==null)?"SD Card failed":ex.getMessage();
Log.e("sdcard-err2:",err);
}
finalTime = mediaPlayer.getDuration();
updateSeekBar();
startTime = mediaPlayer.getCurrentPosition();
}
private void updateSeekBar() {
seekBar.setProgress((int) (((float) mediaPlayer.getCurrentPosition() / mediaFileLength) * 100));
if (mediaPlayer.isPlaying()) {
Runnable updater = new Runnable() {
@Override
public void run() {
updateSeekBar();
}
};seekBar.post(updater);
}
}
@Override
public void onBufferingUpdate(MediaPlayer mp, int percent) {
seekBar.setSecondaryProgress(percent);
}