GradientDrawable drawable = new GradientDrawable();
        //设置圆角大小
        drawable.setCornerRadius(5);
        //设置边缘线的宽以及颜色
        drawable.setStroke(1, Color.parseColor(#FF00FF));
        //设置shape背景色
        drawable.setColor(Color.parseColor("#FFFFFF"));
        //设置到TextView中
        tv_type.setBackgroundDrawable(drawable);