android：通过URL加载ImageView

iphone上实现很简单，一行代码：

imageView.image =[UIImage imageWithContentsOfURL:theURL];

android：

两种方法：

Bitmap bimage=  getBitmapFromURL(bannerpath);
image.setImageBitmap(bimage);

 public static Bitmap getBitmapFromURL(String src) {
        try {
            Log.e("src",src);
            URL url = new URL(src);
            HttpURLConnection connection = (HttpURLConnection) url.openConnection();
            connection.setDoInput(true);
            connection.connect();
            InputStream input = connection.getInputStream();
            Bitmap myBitmap = BitmapFactory.decodeStream(input);
            Log.e("Bitmap","returned");
            return myBitmap;
        } catch (IOException e) {
            e.printStackTrace();
            Log.e("Exception",e.getMessage());
            return null;
        }
    }

or try it

public static Bitmap loadBitmap(String url) {
    Bitmap bitmap = null;
    InputStream in = null;
    BufferedOutputStream out = null;

    try {
        in = new BufferedInputStream(new URL(url).openStream(), IO_BUFFER_SIZE);

        final ByteArrayOutputStream dataStream = new ByteArrayOutputStream();
        out = new BufferedOutputStream(dataStream, IO_BUFFER_SIZE);
        copy(in, out);
        out.flush();

        final byte[] data = dataStream.toByteArray();
        BitmapFactory.Options options = new BitmapFactory.Options();
        //options.inSampleSize = 1;

        bitmap = BitmapFactory.decodeByteArray(data, 0, data.length,options);
    } catch (IOException e) {
        Log.e(TAG, "Could not load Bitmap from: " + url);
    } finally {
        closeStream(in);
        closeStream(out);
    }

    return bitmap;
}

 

方法2

 

    Drawable drawable = LoadImageFromWebOperations(bannerpath);
    image.setImageDrawable(drawable);

     private Drawable LoadImageFromWebOperations(String url)
    {
         try
         {
             InputStream is = (InputStream) new URL(url).getContent();
             Drawable d = Drawable.createFromStream(is, "src name");
             return d;
         }catch (Exception e) {
             System.out.println("Exc="+e);
             return null;
         }
     }

 

搞定！