加载远程图像到ImageView,但没有加载上

Question

我使用以下函数加载一个远程图像到ImageView。图像存在于URL,我想从URL中加载图像，但当我调用函数想显示图像时, ImageView仍是空白。为什么会出现这种情况啊？

public static void setImage(ImageView view, String url) throws IOException { 

        final URLConnection conn = new URL(url).openConnection(); 
        conn.connect(); 
        final InputStream is = conn.getInputStream(); 

        final BufferedInputStream bis = new BufferedInputStream(is, 100000); 

        final Bitmap bm = BitmapFactory.decodeStream(bis); 
        bis.close(); 
        is.close(); 

        view.setImageBitmap(bm); 
    } 

Answer 1

通过下面的代码能够加载远程图像到ImageView:

 Bitmap bitmap = null;

    HttpGet httpRequest = null;


    try {
            URL url = new URL(your_url);
            httpRequest = new HttpGet(url.toURI());

            HttpClient httpclient = new DefaultHttpClient();
            HttpResponse response = (HttpResponse) httpclient.execute(httpRequest);

            HttpEntity entity = response.getEntity();
            BufferedHttpEntity bufHttpEntity = new BufferedHttpEntity(entity); 
            InputStream instream = bufHttpEntity.getContent();
            bitmap = BitmapFactory.decodeStream(instream);
    } catch (URISyntaxException e) {
            e.printStackTrace();
    } catch (MalformedURLException e) {
        e.printStackTrace();
    } catch (IOException e) {
    }