android在代码中设置drawableTop属性

首先抽取按钮设置的drawable

private Drawable changeBtnTop(int id){    Drawable drawableTop  = getResources().getDrawable(id);    drawableTop .setBounds(0, 0, drawableTop .getMinimumWidth(), drawableTop .getMinimumHeight());    return drawableTop ;
}
设置对应按钮的drawableTop背景
tv_setting_ele.setCompoundDrawables(null,changeBtnTop(R.mipmap.main_setting_motor_management_down),null,null);