音频seekBar线程问题？
最初，我有一个 MediaPlayer mPlayers 来播放/暂停/停止我的音频文件。现在，我正在尝试为我的媒体添加一个搜索栏。我尝试使用线程，这就是我想到的：
在 onCreate() 中：
seekBar.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
@Override
public void onProgressChanged(SeekBar seekBar, int progress,
boolean fromUser) {
// TODO Auto-generated method stub
mPlayer.seekTo(progress);
}
////........Omitted Code..........\\\\
//At the very end of the method:
seekThread = new Thread(this); //My Activity implements:Runnable
seekThread.start();
然后，我实现了一个方法 run() 来每 1 秒更新我的搜索栏：
public void run() {
try {
while(mPlayer != null){
int currentPosition = mPlayer.getCurrentPosition();
Message msg = new Message();
msg.what = currentPosition;
threadHandler.sendMessage(msg);
Thread.sleep(1000);
}
} catch (InterruptedException e) {
e.printStackTrace();
}
}
private Handler threadHandler = new Handler(){
public void handleMessage(Message msg){
seekBar.setProgress(msg.what);
}
};
但是，在我的 HTC Magic，音频运行效率低下。有些话重复了。似乎搜索栏每隔一段时间就会向后退一点。
为了让你更好地理解这个问题，让我们这样说：如果音频说： abcdefghijklmn ，那么它将是这样的： abccdeffghijjklmnn 。
您对我的帖子有什么改进建议吗？我做得对吗？
Originally, I had a MediaPlayer mPlayers to play/pause/stop my Audio file. Now, I'm trying to add a seek bar for my media. I tried using Threads and this is what I came up with:
In onCreate() :
seekBar.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
@Override
public void onProgressChanged(SeekBar seekBar, int progress,
boolean fromUser) {
// TODO Auto-generated method stub
mPlayer.seekTo(progress);
}
////........Omitted Code..........\\\\
//At the very end of the method:
seekThread = new Thread(this); //My Activity implements:Runnable
seekThread.start();
Then, I implemented a method run() to update my seek bar every 1 sec:
public void run() {
try {
while(mPlayer != null){
int currentPosition = mPlayer.getCurrentPosition();
Message msg = new Message();
msg.what = currentPosition;
threadHandler.sendMessage(msg);
Thread.sleep(1000);
}
} catch (InterruptedException e) {
e.printStackTrace();
}
}
private Handler threadHandler = new Handler(){
public void handleMessage(Message msg){
seekBar.setProgress(msg.what);
}
};
However, In my HTC Magic, the audio run inefficiently. Some words are repeated. It seems like the seek bar is going back a little bit every some time.
To make you understand the problem well, Let's say this: if the audio says that: abcdefghijklmn , then it will be like this: abccdeffghijjklmnn.
Any improvement you suggest to my thread ? Am I doing it right?
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不确定这是否有帮助，但请尝试：
没有此条件，mPlayer.seekTo(progress);每次调用seekBar.setProgress(msg.what)时都会被调用；
Not sure this will help, but try:
Without this condition, mPlayer.seekTo(progress); is called every time you call seekBar.setProgress(msg.what);