android textview设置字体大小及粗细

 //设置字体加粗
    @BindingAdapter("addBoldNum")
    @JvmStatic
    fun textBold(view: TextView,addBoldNum:Float) {
        view.apply {
            this.paint.style = Paint.Style.FILL_AND_STROKE
            this.paint.strokeWidth = addBoldNum
        }
        view.invalidate()
    }