问从URL中将图像加载到位图时出现OutOfMemory

EN

    BitmapFactory.Options bmOptions;
    bmOptions = new BitmapFactory.Options();
    bmOptions.inJustDecodeBounds = true;
    //from web
    try {
        Bitmap bitmap=null;
        InputStream is=new URL(url).openStream();
        BitmapFactory.decodeStream(is, null, bmOptions);
        is.close();
        BitmapFactory.Options o2 = new BitmapFactory.Options();
        o2.inSampleSize = 1;
        is = new URL(url).openStream();
        bitmap = BitmapFactory.decodeStream(is, null, o2);
        is.close();
        return bitmap;
    } catch (Exception ex){
       ex.printStackTrace();
       return null;
    }