Android 用TextView显示超链接、图片

ImageGetter imgGetter = new Html.ImageGetter() {
        @Override
        public Drawable getDrawable(String source) {
            Drawable drawable = null;
            URL url;
            try {
                url = new URL(source);
                drawable = Drawable.createFromStream(url.openStream(), "");
            } catch (Exception e) {
                return null;
            }
            drawable.setBounds(0, 0, drawable.getIntrinsicWidth(),
                    drawable.getIntrinsicHeight());
            return drawable;
        }
    };