在定位3.0+時獲取NetworkOnMainThreadException在運行時3.0+

由於ActionBarSherlock的原因，我將Manifest更改爲目標API 16，此後，用於檢查當前播放歌曲的處理程序不再有效。它會在下面標記的行上引發NetworkOnMainThreadException。在定位3.0+時獲取NetworkOnMainThreadException在運行時3.0+

我在做什麼錯？我以爲我的多線程設置正確。

這裏是我的代碼：

handler = new Handler(); 

    updateSongTask = new Runnable() { 
     public void run() { 
      Log.d("asdf", "scraper started"); 
      Scraper scraper = new ShoutCastScraper(); // THIS LINE throws the exception 
      List<Stream> streams; 
      try { 
       streams = scraper.scrape(new URI(url)); 
       for (Stream stream : streams) {      
        Intent songIntent = new Intent(CUSTOM_INTENT); 

        String[] songAndArtist = songAndArtist(stream.getCurrentSong()); 
        songIntent.putExtra("song", songAndArtist[0]); 
        songIntent.putExtra("artist", songAndArtist[1]); 
        songIntent.putExtra("stationurl", url); 
        sendBroadcast(songIntent); 
        Log.d("asdf", "should send broadcast"); 

       } 
      } catch (Exception e) { 
       // TODO Auto-generated catch block 
       e.printStackTrace(); 
      } 

      handler.postDelayed(this, 5000); 
     } 
    }; 

    handler.postDelayed(updateSongTask, 0);

來源

2012-07-03 Steven Schoen