无法获取位图上传到PHP服务器？

Question

我试图让我的应用程序将使用相机拍摄的图像上传到服务器。我知道这不是服务器，因为我可以毫无问题地访问网址。我得到Error in http connection android.os.NetworkOnMainThreadException作为错误。这是我正在尝试使用的代码。

public void uploadFile(Bitmap file) { 
     Bitmap bitmapOrg = file; 
     ByteArrayOutputStream bao = new ByteArrayOutputStream(); 
     bitmapOrg.compress(Bitmap.CompressFormat.JPEG, 90, bao); 
     byte[] ba = bao.toByteArray(); 
     String ba1=Base64.encodeBytes(ba); 

     ArrayList<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>(); 
     nameValuePairs.add(new BasicNameValuePair("image",ba1)); 

     try { 
      HttpClient httpclient = new DefaultHttpClient(); 
      HttpPost httppost = new HttpPost("http://example.info/appserver/upload.php"); 
      httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs)); 
      HttpResponse response = httpclient.execute(httppost); 
      HttpEntity entity = response.getEntity(); 
      is = entity.getContent(); 
     } catch(Exception e){ 
      Log.e("log_tag", "Error in http connection "+e.toString()); 
     } 

    } 

Answer 1

网络活动无法在主线程（UI线程）上完成，因为它会严重影响您的应用程序对用户的感受。查看training doc on doing network access using AsyncTasks获取解决方案。