<style name="DialogTheme" parent="@style/Theme.AppCompat.Dialog">
<item name="windowNoTitle">true</item>
<item name="android:windowIsFloating">true</item>
<item name="android:windowCloseOnTouchOutside">false</item>
<item name="android:windowBackground">@android:color/transparent</item>
</style>
标签：false,对话框,样式,主题,Activity,true From： https://www.cnblogs.com/javaktolin/p/17639974.html