Android实现图片上传

class NormalLoadPictrue {
     private String uri;
     private ImageView imageView;
     private byte [] picByte;
      
      
     public void getPicture(String uri,ImageView imageView){
         this .uri = uri;
         this .imageView = imageView;
         new Thread(runnable).start();
     }
      
     @SuppressLint ( "HandlerLeak" )
     Handler handle = new Handler(){
         @Override
         public void handleMessage(Message msg) {
             super .handleMessage(msg);
             if (msg.what == 1 ) {
                 if (picByte != null ) {
                     Bitmap bitmap = BitmapFactory.decodeByteArray(picByte, 0 , picByte.length);
                     imageView.setImageBitmap(bitmap);
                 }
             } else if (msg.what == 1 ){
                 ToastUtil.show( "图片下载失败!" );
             }
         }
     };
  
     Runnable runnable = new Runnable() {
         @Override
         public void run() {
             try {
                 URL url = new URL(uri);
                 HttpURLConnection conn = (HttpURLConnection)url.openConnection();
                 conn.setRequestMethod( "GET" );
                 conn.setReadTimeout( 10000 );
                  
                 if (conn.getResponseCode() == 200 ) {
                     InputStream fis =  conn.getInputStream();
                     ByteArrayOutputStream bos = new ByteArrayOutputStream();
                     byte [] bytes = new byte [ 1024 ];
                     int length = - 1 ;
                     while ((length = fis.read(bytes)) != - 1 ) {
                         bos.write(bytes, 0 , length);
                     }
                     picByte = bos.toByteArray();
                     bos.close();
                     fis.close();
                      
                     Message message = new Message();
                     message.what = 1 ;
                     handle.sendMessage(message);
                 }
                  
                  
             } catch (ConnectTimeoutException e) {
                 Message message = new Message();
                 message.what = 2 ;
                 handle.sendMessage(message);
                 e.printStackTrace();
             } catch (ClientProtocolException e) {
                 Message message = new Message();
                 message.what = 2 ;
                 handle.sendMessage(message);
                 e.printStackTrace();
             } catch (SocketTimeoutException e) {
                 Message message = new Message();
                 message.what = 2 ;
                 handle.sendMessage(message);
                 e.printStackTrace();
             } catch (UnsupportedEncodingException e) {
                 Message message = new Message();
                 message.what = 2 ;
                 handle.sendMessage(message);
                 e.printStackTrace();
             } catch (IOException e) {
                 Message message = new Message();
                 message.what = 2 ;
                 handle.sendMessage(message);
                 e.printStackTrace();
             } catch (Exception e) {
                 Message message = new Message();
                 message.what = 2 ;
                 handle.sendMessage(message);
                 e.printStackTrace(); // TODO: handle exception
             }
         }
     };
      
}

转载于:https://my.oschina.net/hjwsun/blog/508733

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