android - Do you know why mediaplayer runonuithread doesn't work? -

i trying run android's mediaplayer using runonuithread. did not caught exception setdatasource. after that, nothing happens mediaplayer. should give callback surface changed , onprepared.

it seems mediaplayer doesn't support way. if true, there workarounds ? need kind of logic because need info network query blocked. need run onsuccess that.

what suggestion this? much!

onresume()  {    getinfo(xxx); }  void getinfo(url, new datalistener() {     @override     public void ondatasuccess(xxx) {         playvideoonsuccess(xxx);     } } public void playvideoonsuccess(xxx) {     mybaseactivity.runonuithread(new runnable() {         @override         public void run() {             try {                 mplayerlistener = new videoplayerlistener(null, content);                 // create new mediaplayer                 mvideoplayer = videoplayer.getinstance();                 mvideoplayer.setvideoplayerlistener(mplayerlistener);                  // setdatasource                 mvideoplayer.consumecontent(content);              } catch (exception e) {                 e.printstacktrace();             }         }     }); } 

here sample code used play video hope might in way

   public class videoviewdemo extends activity {  private static final string tag = "videoviewdemo"; private string current;  /**  * todo: set path variable streaming video url or local media  * file path.  */ private string path = "http://www.boisestatefootball.com/sites/default/files/videos/original/01%20-%20coach%20pete%20bio_4.mp4"; private videoview mvideoview;  @override public void oncreate(bundle icicle) {     super.oncreate(icicle);     setcontentview(r.layout.videoview);     mvideoview = (videoview) findviewbyid(r.id.surface_view);     runonuithread(new runnable() {         public void run() {             playvideo();         }     }); }  private void playvideo() {     try {         // final string path = path;         log.v(tag, "path: " + path);         if (path == null || path.length() == 0) {             toast.maketext(videoviewdemo.this, "file url/path empty",                     toast.length_long).show();          } else {             // if path has not changed, start media player             if (path.equals(current) && mvideoview != null) {                 mvideoview.start();                 mvideoview.requestfocus();                 return;             }             current = path;             mvideoview.setvideopath(getdatasource(path));             mvideoview.start();             mvideoview.setmediacontroller(new mediacontroller(this));             mvideoview.requestfocus();          }     } catch (exception e) {         log.e(tag, "error: " + e.getmessage(), e);         if (mvideoview != null) {             mvideoview.stopplayback();         }     } }  private string getdatasource(string path) throws ioexception {     if (!urlutil.isnetworkurl(path)) {         return path;     } else {         url url = new url(path);         urlconnection cn = url.openconnection();         cn.connect();         inputstream stream = cn.getinputstream();         if (stream == null)             throw new runtimeexception("stream null");         file temp = file.createtempfile("mediaplayertmp", "dat");         temp.deleteonexit();         string temppath = temp.getabsolutepath();         fileoutputstream out = new fileoutputstream(temp);         byte buf[] = new byte[128];         {             int numread = stream.read(buf);             if (numread <= 0)                 break;             out.write(buf, 0, numread);         } while (true);         try {             stream.close();         } catch (ioexception ex) {             log.e(tag, "error: " + ex.getmessage(), ex);         }         return temppath;     } } } 

this work me