默认菜单：
<!-- Base application theme. -->
<style name="AppTheme" parent="Theme.AppCompat.DayNight">
<!-- Customize your theme here. -->
<item name="colorPrimary">@color/colorPrimary</item>
<item name="colorPrimaryDark">@color/colorPrimaryDark</item>
<item name="colorAccent">@color/colorAccent</item>
<item name="android:windowContentTransitions">true</item>
<item name="toolbarStyle">@style/customToolbarStyle</item>
<item name="toolbarNavigationButtonStyle">
@style/Widget.AppCompat.Toolbar.Button.Navigation
</item>
<item name="actionModeBackground">@color/colorPrimaryDark</item>
<item name="actionModeCloseDrawable">@drawable/ic_close_black</item>
<item name="actionOverflowButtonStyle">@style/ActionButton.Overflow</item>
<item name="popupMenuStyle">@style/AppTheme.PopupOverlay</item>
<item name="android:windowLightStatusBar">@bool/lightStatusBar</item>
</style>
<style name="AppTheme.PopupOverlay" parent="ThemeOverlay.AppCompat.DayNight">
<item name="overlapAnchor">false</item>
<item name="android:itemTextAppearance">@style/CustomMenuTextAppearance</item>
</style>
<style name="CustomMenuTextAppearance" parent="TextAppearance.AppCompat.Light.Widget.PopupMenu.Large">
<item name="android:textSize">16sp</item>
<item name="android:textColor">@color/menu_item_color</item>
</style>
PopupMenu菜单：
<style name="ViewScreenStyle" parent="Theme.AppCompat.DayNight.NoActionBar">
<item name="android:windowTranslucentNavigation">true</item>
<item name="android:windowTranslucentStatus">true</item>
<item name="colorPrimary">@color/colorPrimary</item>
<item name="colorPrimaryDark">@color/colorPrimaryDark</item>
<item name="colorAccent">@color/colorAccent</item>
<item name="android:windowContentTransitions">true</item>
<item name="android:windowBackground">@android:color/transparent</item>
<item name="android:windowIsTranslucent">true</item>
<item name="android:textAppearanceLargePopupMenu">@style/CustomPopupMenuTextAppearanceLarge</item>
</style>
<style name="CustomPopupMenuTextAppearanceLarge" parent="@style/TextAppearance.AppCompat.Light.Widget.PopupMenu.Large">
<item name="android:textColor">@color/menu_item_color</item>
<item name="android:textSize">16sp</item>
</style>