Drawable drawableUp=mContext.getResources().getDrawable(R.drawable.ic_arrow_up_coupon);
//tv_rule.setCompoundDrawables(null,null,drawableUp,null);//点击后会消失不见,不建议用
//设置文字右边的图片,
tv_rule.setCompoundDrawablesWithIntrinsicBounds(null,null,drawableUp,null);
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