Android SystemUI source need to modify the rounded style dialog implementation, then native code has a style integration under the framework of the res inside the
<style name="Theme. SystemUI. Dialog. GlobalActions" parent=@ android: style/Theme. DeviceDefault. Light. NoActionBar. FullScreen "& gt;
Then I inside the framework in the style of the parent class found a attribute
DialogCornerRadius
Then I wrote in a subclass to again, but I found no effect setting of dp value

Then write
Also do not take effect, so I want to ask, where does my writing problems lead to no effect