在我的项目中,我使用以下代码在android媒体播放器中播放音乐文件
MediaPlayer mPlayer = MediaPlayer.create(MyActivity.this, R.raw.myfile);
mPlayer.start();
以上代码是在单击播放按钮时编写的。我想通过单击播放/暂停的单个按钮( again.ie)来暂停播放。我该怎么做呢?
发布于 2012-02-27 14:50:42
您可以使用简单的if-check来处理暂停。试试这个:
if(mPlayer.isPlaying()){
mPlayer.pause();
} else {
mPlayer.start();
}
发布于 2012-02-27 14:51:13
在按钮内单击check for mediaPlayer.isPlaying()
。如果媒体播放器播放的是else false,则返回true。
现在有了这个标志值,你可以做一个if语句,然后像这样切换到播放或暂停,
button.setOnClickListener(new View.OnClickListener() {
public void onClick(View view) {
if (mediaplayer.isPlaying()) {
mediaplayer.pause();
} else {
mediaplayer.start();
}
}
});
发布于 2012-08-31 19:02:49
下面的代码负责你的播放/暂停按钮点击事件,以及在提供的搜索栏(与媒体音轨同步)上前进和后退搜索的前进和后退按钮。目前它只播放一首歌曲。但是,您可以对其进行补充。这是我第一个使用mediaplayer class
的媒体播放器,所以你可能会觉得它有点原始。但是,如果需要,您还可以查看VideoView
示例。使用VideoView
显然更容易,因为标准媒体控制台已经以预定义小部件的形式存在。所以这使得设计播放器变得容易得多。
package in.org.Test;
import android.app.Activity;
import android.media.MediaPlayer;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.ImageButton;
import android.widget.ProgressBar;
import android.widget.SeekBar;
import android.widget.Toast;
public class Test12Activity extends Activity implements OnClickListener,Runnable {
private static final String isPlaying = "Media is Playing";
private static final String notPlaying = "Media has stopped Playing";
private SeekBar seek;
MediaPlayer player = new MediaPlayer();
private ImageButton plus,minus;
ImageButton im;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
plus = (ImageButton) findViewById(R.id.imageButton2);
minus = (ImageButton) findViewById(R.id.imageButton3);
player = MediaPlayer.create(this, R.raw.sound2);
player.setLooping(false);
im = (ImageButton) this.findViewById(R.id.imageButton1);
seek = (SeekBar) findViewById(R.id.seekBar1);
seek.setVisibility(ProgressBar.VISIBLE);
seek.setProgress(0);
seek.setMax(player.getDuration());
new Thread(this).start();
im.setOnClickListener(this);
player.start();
Toast.makeText(this, isPlaying, Toast.LENGTH_LONG).show();
plus.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) { int cu = player.getCurrentPosition(); player.seekTo(cu-5000); }});
minus.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {int cu = player.getCurrentPosition(); player.seekTo(cu+5000);}});
}
@Override
public void onClick(View arg0) {
if (arg0.getId() == R.id.imageButton1) {
if(player.isPlaying()) {
player.pause();
Toast.makeText(this, notPlaying, Toast.LENGTH_LONG).show();
ImageButton img1=(ImageButton) this.findViewById(R.id.imageButton1);
img1.setImageResource(R.drawable.play);
}
else
{
player.start();
Toast.makeText(this, isPlaying, Toast.LENGTH_LONG).show();
ImageButton img1=(ImageButton) this.findViewById(R.id.imageButton1);
img1.setImageResource(R.drawable.pause);
}
}
}
@Override
public void run() {
int currentPosition= 0; String s;
int total = player.getDuration();
while (player!=null && currentPosition<total) {
try {
Thread.sleep(1000);
currentPosition= player.getCurrentPosition();
} catch (InterruptedException e) {
return;
} catch (Exception e) {
return;
}
seek.setProgress(currentPosition);
}
}
}
https://stackoverflow.com/questions/9461056
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