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 } } }; }

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