请教一个VideoView的问题

xiao4623581 2010-10-18 04:31:01

各位高手大侠好，小弟我在做VideoView Widget这个实例时，在1.5平台下可以运行里面的播放影片，并且是联网的那种
{
mButton01.setOnClickListener(new Button.OnClickListener()
{
@Override
public void onClick(View arg0)
{
if(bIfSDExist)
{
strVideoPath = "http://www.dubblogs.cc:8751/Android/Test/Media/mp4/test.mp4";
playVideo(strVideoPath);
resetVideo();
}
}
});

mButton02.setOnClickListener(new Button.OnClickListener()
{
@Override
public void onClick(View arg0)
{
if(bIfSDExist)
{
strVideoPath = "http://www.dubblogs.cc:8751/Android/Test/Media/mp4/test.3gp";
playVideo(strVideoPath);
resetVideo();
}
}
});
}
但是小弟换到2.2的平台下，发现不能播放上面的strVideoPath中的内容。并且什么效果都没有，连不能播放的格式错误提醒也没有，当我把strVideoPath换成strVideoPath="http://www.dubblogs.cc:8751/Android/Test/Media/mp4/H264.mp4"后，点击播放按钮后会有此种格式的影片不能播放，在这里想请教下大家这是怎么回事？麻烦了
下面的是代码
package play.com.cn;

import android.app.Activity;
import android.graphics.PixelFormat;
import android.media.MediaPlayer;
import android.net.Uri;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.MediaController;
import android.widget.TextView;
import android.widget.Toast;
import android.widget.VideoView;

public class Play3gp extends Activity {
private TextView mTextView01;
private VideoView mVideoView01;
private String strVideoPath ="";
private Button mButton01,mButton02;
private String TAG = "HIPPO_VIDEOVIEW";
/*默认判别是否安装存储卡flag为false*/
private boolean bIfSDExist = false;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
/*全屏幕*/
getWindow().setFormat(PixelFormat.TRANSLUCENT);
setContentView(R.layout.main);

/*判断存储卡是否存在*/
if(android.os.Environment.getExternalStorageState().equals(android.os.Environment.MEDIA_MOUNTED))
{
bIfSDExist=true;
}
else
{
bIfSDExist = false;
mMakeTextToast(getResources().getText(R.string.str_err_nosd).toString(),true);
}

mTextView01 = (TextView)findViewById(R.id.myTextView1);
mVideoView01 = (VideoView)findViewById(R.id.myVideoView);

mButton01 = (Button)findViewById(R.id.myButton1);
mButton02 = (Button)findViewById(R.id.myButton2);

mButton01.setOnClickListener(new Button.OnClickListener()
{
@Override
public void onClick(View arg0)
{
if(bIfSDExist)
{
strVideoPath = "http://www.dubblogs.cc:8751/Android/Test/Media/mp4/test.mp4";
playVideo(strVideoPath);
resetVideo();
}
}
});

mButton02.setOnClickListener(new Button.OnClickListener()
{
@Override
public void onClick(View arg0)
{
if(bIfSDExist)
{
strVideoPath = "http://www.dubblogs.cc:8751/Android/Test/Media/mp4/test.3gp";
playVideo(strVideoPath);
resetVideo();
}
}
});
}

/*自定义的以VideoView播放影片*/
private void playVideo(String strPath)
{
if(strPath!="")
{
/*调用VideoURI方法，指定解析路径*/
mVideoView01.setVideoURI(Uri.parse(strPath));
/*设置控制Bar显示在此Context中*/
mVideoView01.setMediaController(new MediaController(Play3gp.this));

mVideoView01.requestFocus();

/*调用VideoView.start()自动播放*/
mVideoView01.start();
if(mVideoView01.isPlaying())
{
//下面的程序不会被运行，因start()后尚需要preparing()
/*mTextView01.setText("Now Playing:"+strPath);
Log.i(TAG, strPath);*/
mVideoView01.setOnPreparedListener(new MediaPlayer.OnPreparedListener()
{
@Override
public void onPrepared(MediaPlayer mp)
{
mTextView01.setText(strVideoPath);
}
});

mVideoView01.setOnCompletionListener(new MediaPlayer.OnCompletionListener()
{
@Override
public void onCompletion(MediaPlayer arg0)
{
mMakeTextToast(getResources().getText(R.string.str_complete).toString(),true);
}
});
}

}
}

private void resetVideo()
{
if(mVideoView01!=null)
{
mVideoView01.seekTo(0);
}
}
public void mMakeTextToast(String str,boolean isLong)
{
if(isLong==true)
{
Toast.makeText(Play3gp.this,str,Toast.LENGTH_LONG).show();
}
else
{
Toast.makeText(Play3gp.this, str, Toast.LENGTH_SHORT).show();
}
}

}

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