Android获取网络图片并显示的方法

public class MainActivity extends AppCompatActivity {  Button button;  ImageView imageView;  String url = "http://i4.buimg.com/dccba6282641a9e0.jpg";  //String textURL = "http://192.168.1.104:8080/add.jsp";  @Override  protected void onCreate(Bundle savedInstanceState) {    super.onCreate(savedInstanceState);    setContentView(R.layout.activity_main);    button = (Button) findViewById(R.id.button);    imageView = (ImageView) findViewById(R.id.imageView);    button.setOnClickListener(new View.OnClickListener() {      @Override      public void onClick(View v) {        new Thread(new Runnable() {          @Override          public void run() {            Bitmap bmp = getURLimage(url);            Message msg = new Message();            msg.what = 0;            msg.obj = bmp;            System.out.println("000");            handle.sendMessage(msg);          }        }).start();      }    });  }  //在消息队列中实现对控件的更改  private Handler handle = new Handler() {    public void handleMessage(Message msg) {      switch (msg.what) {        case 0:          System.out.println("111");          Bitmap bmp=(Bitmap)msg.obj;          imageView.setImageBitmap(bmp);          break;      }    };  };  //加载图片  public Bitmap getURLimage(String url) {    Bitmap bmp = null;    try {      URL myurl = new URL(url);      // 获得连接      HttpURLConnection conn = (HttpURLConnection) myurl.openConnection();      conn.setConnectTimeout(6000);//设置超时      conn.setDoInput(true);      conn.setUseCaches(false);//不缓存      conn.connect();      InputStream is = conn.getInputStream();//获得图片的数据流      bmp = BitmapFactory.decodeStream(is);//读取图像数据      //读取文本数据      //byte[] buffer = new byte[100];      //inputStream.read(buffer);      //text = new String(buffer);      is.close();    } catch (Exception e) {      e.printStackTrace();    }    return bmp;  }}