我一直在努力工作一段時間,試圖讓本教程工作(http://united-coders.com/nico-heid/an-android-seekbar-for-your-mediaplayer/),但我沒有任何運氣。音頻播放完美,但SeekBar不會移動。MediaPlayer在Android中工作,但進度不是
package com.example.playingaudio;
import java.io.FileInputStream;
import android.app.Activity;
import android.media.AudioManager;
import android.media.MediaPlayer;
import android.os.Bundle;
import android.view.View;
import android.widget.SeekBar;
public class MainActivity extends Activity implements Runnable {
private MediaPlayer mediaPlayer;
private SeekBar progress;
@Override
protected void onCreate(Bundle savedInstanceState) {
setContentView(R.layout.activity_main);
super.onCreate(savedInstanceState);
progress = (SeekBar) findViewById(R.id.seekBar1);
}
public void playButton(View view) {
try {
playRecording();
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
protected void playRecording() throws Exception {
final MediaPlayer mediaPlayer = new MediaPlayer();
FileInputStream fileStream = new FileInputStream(
"/sdcard/Download/mySong.mp3");
mediaPlayer.setDataSource(fileStream.getFD());
mediaPlayer.prepare(); // might take long! (for buffering, etc)
mediaPlayer.start();
run();
}
private void ditchMediaPlayer() {
if (mediaPlayer != null) {
try {
mediaPlayer.release();
} catch (Exception e) {
e.printStackTrace();
}
}
}
@Override
public void run() {
// mp is your MediaPlayer
// progress is your ProgressBar
int currentPosition = 0;
int total = mediaPlayer.getDuration();
progress.setMax(total);
while (mediaPlayer != null && currentPosition < total) {
try {
Thread.sleep(1000);
currentPosition = mediaPlayer.getCurrentPosition();
} catch (InterruptedException e) {
return;
} catch (Exception e) {
return;
}
progress.setProgress(currentPosition);
}
}
}
爲什麼你在UI線程上首先執行Thread.sleep()?這太soooooooooooo壞了!上帝該死的太糟糕了! –
我試圖按照教程。 – EGHDK
你能分享你的佈局 – Peshal