TextView中的图文混排

ImageSpan imageSpanMenu1 = new ImageSpan(activity,menuResId1);
SpannableString contentMenu1 = new SpannableString(" "+menuName1);
contentMenu1.setSpan(imageSpanMenu1, 0, 2, SpannableString.SPAN_EXCLUSIVE_EXCLUSIVE);
btn_czxc.setText(contentMenu1);