Drawable img_top = getResources().getDrawable(menuItemShow.getIv_rs_id());
// 調(diào)用setCompoundDrawables時凭峡，必須調(diào)用Drawable.setBounds()方法,否則圖片不顯示
img_top.setBounds(0, 0, 70, 70);（x声旺，y级及，w，h）
tv.setCompoundDrawables(null, img_top, null, null); //設(shè)置左圖標(biāo)
