Dialog类型，不影响底部activity

    <style name="Out" parent="Theme.AppCompat.Dialog">
        <item name="windowNoTitle">true</item>
        <item name="android:windowNoTitle">true</item>
        <item name="android:windowBackground">@android:color/transparent</item>
        <item name="android:windowTranslucentNavigation">true</item>
        <item name="android:windowIsFloating">true</item>
        <item name="android:backgroundDimEnabled">false</item>
        <item name="android:windowCloseOnTouchOutside">true</item>
    </style>

设置宽高

    val window = window
        window.setLayout(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT)
        window.setBackgroundDrawableResource(R.color.transparent)

全屏theme

   <style name="GuidePerTheme">
        <item name="android:windowIsTranslucent">true</item>
        <item name="android:windowIsFloating">true</item>
        <item name="android:windowBackground">@android:color/transparent</item>
        <item name="android:windowContentOverlay">@null</item>
        <item name="android:windowNoTitle">true</item>
        <item name="android:backgroundDimEnabled">false</item>
    </style>