在android中从http服务器播放视频
我有一个列表视图,其中我从服务器的特定文件夹加载所有视频。 现在我想要做的是通过点击一个列表项目,它应该在视频视图中播放该视频。 一切似乎都工作完美,但只有我面临的问题是当我点击列表视图项目它不播放该视频。
PS。 我得到以下登录错误日志,但我的应用程序不会停止不幸的是,我的显示器不断显示视频加载进度栏,我在Asynctask中设置,但当我检查日志猫,我看到了这个错误。
当然,我已经在谷歌搜索以及SO,但我没有得到满意的结果。
Folowwing是我的日志猫消息。
02-21 11:08:52.964: W/SurfaceFlinger(101): nothing to do with mask 0x00000000
02-21 11:08:52.974: W/System.err(1992): java.lang.RuntimeException: Can't create handler inside thread that has not called Looper.prepare()
02-21 11:08:52.976: W/System.err(1992): at android.os.Handler.<init>(Handler.java:121)
02-21 11:08:52.976: W/System.err(1992): at android.widget.MediaController$3.<init>(MediaController.java:474)
02-21 11:08:52.977: W/System.err(1992): at android.widget.MediaController.<init>(MediaController.java:474)
02-21 11:08:52.978: W/System.err(1992): at android.widget.MediaController.<init>(MediaController.java:210)
02-21 11:08:52.978: W/System.err(1992): at iqual.fidol_final.ServerFileList.playVideo(ServerFileList.java:225)
02-21 11:08:52.979: W/System.err(1992): at iqual.fidol_final.ServerFileList.access$3(ServerFileList.java:221)
02-21 11:08:52.979: W/System.err(1992): at iqual.fidol_final.ServerFileList$PlayVideo$1.run(ServerFileList.java:181)
02-21 11:08:52.979: W/System.err(1992): at java.lang.Thread.run(Thread.java:856)
以下是我的代码。
mListView.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
String url1 = null;
Object o1 = myList.get(position);
url1 = o1.toString().replace(" ", "%20").trim();
playVideo = (PlayVideo) new PlayVideo(url1).execute();
}
});
这是我的Asynctask playvideo
class PlayVideo extends AsyncTask<String, Void, Boolean> {
String baseURL;
public PlayVideo(String baseURL) {
this.baseURL = baseURL;
}
@Override
protected void onPreExecute() {
super.onPreExecute();
pDialog = ProgressDialog.show(ServerFileList.this,
" Buffering...", "please wait..", false);
pDialog.setCancelable(false);
}
@Override
protected Boolean doInBackground(String... urls) {
Thread thread = new Thread(new Runnable() {
@Override
public void run() {
try {
playVideo(baseURL);
} catch (Exception e) {
e.printStackTrace();
}
}
});
thread.start();
return true;
}
@Override
protected void onPostExecute(Boolean result) {
super.onPostExecute(result);
}
}
以下是我的playVideo方法。
private void playVideo(String baseURL) {
Uri myUri = Uri.parse(baseURL);
MediaController mc;
mc = new MediaController(this);
mVideoView.setMediaController(mc);
mVideoView.setVideoURI(myUri);
System.out.println("====Myuri=====" + myUri);
mVideoView.requestFocus();
mVideoView.start();
}
我也尝试在doInbackground方法中创建新的线程,并通过删除线程,但这个技巧并不适合我。
还有一件事情,它显示第225行是mc = new MediaController(this);
你可以删除你的AsyncTask并使用下面的代码直接播放你的视频,
String url1 = null;
Object o1 = myList.get(position);
url1 = o1.toString().replace(" ", "%20").trim();
playVideo(url1);
U可以在VideoView中播放视频试试这个使用Asynctask
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.playvideo);
VideoView v=(VideoView)findViewById(R.id.videoview);
new BackgroundAsyncTask().execute("Video Url");
}
public class BackgroundAsyncTask extends AsyncTask<String, Uri, Void> {
Integer track = 0;
ProgressDialog dialog;
protected void onPreExecute() {
dialog = new ProgressDialog(PlayVideo.this);
dialog.setMessage("Loading, Please Wait...");
dialog.setCancelable(true);
dialog.show();
}
protected void onProgressUpdate(final Uri... uri) {
try {
media = new MediaController(PlayVideo.this);
v.setMediaController(media);
media.setPrevNextListeners(new View.OnClickListener() {
@Override
public void onClick(View v) {
// next button clicked
}
}, new View.OnClickListener() {
@Override
public void onClick(View v) {
finish();
}
});
media.show(10000);
v.setVideoURI(uri[0]);
v.requestFocus();
v.setOnPreparedListener(new OnPreparedListener() {
public void onPrepared(MediaPlayer arg0) {
v.start();
dialog.dismiss();
}
});
}
catch (IllegalArgumentException e) {
e.printStackTrace();
}
catch (IllegalStateException e) {
e.printStackTrace();
}
catch (SecurityException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
@Override
protected Void doInBackground(String... params) {
try {
Uri uri = Uri.parse(params[0]);
publishProgress(uri);
} catch (Exception e) {
e.printStackTrace();
}
return null;
}
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