SystemUI上下角度显示圆角

之前碰到一个需求，需要在launcher界面整体，四个角均显示圆角。 对于这个需求在Android11上面下hi需要修改config.xml文件,具体修改如下：

frameworks/base/+/2390/1/core/res/res/values/dimens.xml
<!-- Default radius of the software rounded corners. -->
    <dimen name="rounded_corner_radius">0dp</dimen> 
    <!-- Radius of the software rounded corners at the top of the display in its natural
        orientation. If zero, the value of rounded_corner_radius is used. -->
    <dimen name="rounded_corner_radius_top">0dp</dimen>
    <!-- Radius of the software rounded corners at the bottom of the display in its natural
        orientation. If zero, the value of rounded_corner_radius is used. -->
    <dimen name="rounded_corner_radius_bottom">0dp</dimen

修改rounded_corner_radius，四个角都会加上对应角度。看备注可以知道如果只想修改上面位圆角，只修改rounded_corner_radius_top，而修改下方位圆角可修改rounded_corner_radius_bottom。

但是到了Android13上面，只修改config.xml文件，这个需求并不完全生效，只有锁屏界面生效了上半部分，但是解锁进入launcher之后，圆角不生效了。关于Android13的修改除了上面修改config.xml配置文件之外，还需要新增如下修改：

    /packages/SystemUI/src/com/android/systemui/decor/RoundedCornerResDelegate.kt
     private fun reloadMeasures() {
        val mRoundedCorners = RoundedCorners.getRoundedCornerRadius(res,displayUniqueId)

        topRoundedDrawable?.let {
            //topRoundedSize = Size(it.intrinsicWidth, it.intrinsicHeight)
            topRoundedSize = Size(mRoundedCorners,mRoundedCorners)
        }
        bottomRoundedDrawable?.let {
            //bottomRoundedSize = Size(it.intrinsicWidth, it.intrinsicHeight)
            bottomRoundedSize = Size(mRoundedCorners, mRoundedCorners)
        }