Android 播放器开发之seekBar

核心提示：1.在播放器上加入滚动条的代码如下，把goOn()放到onCreate()里：Java代码//进度条public void goOn(){seekBar.setMax(mediaPlayer.getDuration());new Thread(new Runnable(){public void run() {whil

1.在播放器上加入滚动条的代码如下，把goOn()放到onCreate()里：

Java代码

//进度条

public void goOn()

{

seekBar.setMax(mediaPlayer.getDuration());

new Thread(new Runnable(){

public void run() {

while(true){

//获得当前播放的进度值

seekBar.setProgress(mediaPlayer.getCurrentPosition());

try {

Thread.sleep(1000);

} catch (InterruptedException e) {

e.printStackTrace();

}

}

}}).start();

}

//进度条

public void goOn()

{

seekBar.setMax(mediaPlayer.getDuration());

new Thread(new Runnable(){

public void run() {

while(true){

//获得当前播放的进度值

seekBar.setProgress(mediaPlayer.getCurrentPosition());

try {

Thread.sleep(1000);

} catch (InterruptedException e) {

e.printStackTrace();

}

}

}}).start();

}

2.滚动条拖动播放的代码如下：将startProgressUpdate()方法放入onCreate()里面

Java代码

//拖动进度条更新

public void startProgressUpdate(){

//开辟Thread 用于定期刷新SeekBar

DelayThread dThread = new DelayThread(100);

dThread.start();

}

private Handler mHandle = new Handler(){

@Override

public void handleMessage(Message msg){

int position = mediaPlayer.getCurrentPosition();

int mMax = mediaPlayer.getDuration();

int sMax = seekBar.getMax();

seekBar.setProgress(position*sMax/mMax);

}

};

public class DelayThread extends Thread {

int milliseconds;

public DelayThread(int i){

milliseconds = i;

}

public void run() {