采用Spanned在android View任意位置加图片效果

mageGetter imgGetter = new Html.ImageGetter() {
@Override
public Drawable getDrawable(String source) {
Drawable drawable = null;
drawable = demobutton.this.getResources().getDrawable(
Integer.parseInt(source));
drawable.setBounds(0, 0, drawable.getIntrinsicWidth(),
drawable.getIntrinsicHeight());
return drawable;
}
};

Button btn = (Button) findViewById(R.id.button1);
StringBuffer sb = new StringBuffer();
sb.append("<img src=\"").append(R.drawable.button1).append("\"/>").append("<font color=\"6f6f6f\">按钮上加图片效果</font>");;
Spanned span = Html.fromHtml(sb.toString(), imgGetter, null);
btn.setText(span);
sb = null;