在android中更改弹出菜单的背景色

我一直在网上寻找解决方案，但由于某些原因，我尝试过的一切都没有反映在弹出菜单上。下面是我试图改变弹出菜单的颜色，但它没有影响，弹出菜单的背景仍然是黑色

themes.xml
<style name="MyTheme" parent="@style/Theme.AppCompat.Light.DarkActionBar">
    <item name="colorPrimary">#2979FF</item>
    <item name="colorPrimaryDark">#2962FF</item>
    <item name="android:popupMenuStyle">@style/MyPopupMenu</item>
</style>



<style name="MyPopupMenu" parent="@style/Widget.AppCompat.PopupMenu">
    <item name="android:background">#2979FF</item>
</style>

themes.xml
#2979FF
#2962FF
@样式/MyPopupMenu
#2979FF

试试这个：

<style name="MyPopupMenu" parent="@style/Widget.AppCompat.PopupMenu">
   <item name="android:popupBackground">#2979FF</item>
</style>

Context wrapper = new ContextThemeWrapper(getContext(), R.style.MyPopupMenu);
PopupMenu popupMenu = new PopupMenu(wrapper, view);

#2979FF
Context-wrapper=new-ContextThemeWrapper（getContext（），R.style.MyPopupMenu）；
PopupMenu=新的PopupMenu（包装器，视图）；

试试这个：

<style name="MyPopupMenu" parent="@style/Widget.AppCompat.PopupMenu">
   <item name="android:popupBackground">#2979FF</item>
</style>

Context wrapper = new ContextThemeWrapper(getContext(), R.style.MyPopupMenu);
PopupMenu popupMenu = new PopupMenu(wrapper, view);

#2979FF
Context-wrapper=new-ContextThemeWrapper（getContext（），R.style.MyPopupMenu）；
PopupMenu=新的PopupMenu（包装器，视图）；

试试这个：

<style name="MyPopupMenu" parent="@style/Widget.AppCompat.PopupMenu">
   <item name="android:popupBackground">#2979FF</item>
</style>

Context wrapper = new ContextThemeWrapper(getContext(), R.style.MyPopupMenu);
PopupMenu popupMenu = new PopupMenu(wrapper, view);

#2979FF
Context-wrapper=new-ContextThemeWrapper（getContext（），R.style.MyPopupMenu）；
PopupMenu=新的PopupMenu（包装器，视图）；

试试这个：

<style name="MyPopupMenu" parent="@style/Widget.AppCompat.PopupMenu">
   <item name="android:popupBackground">#2979FF</item>
</style>

Context wrapper = new ContextThemeWrapper(getContext(), R.style.MyPopupMenu);
PopupMenu popupMenu = new PopupMenu(wrapper, view);

#2979FF
Context-wrapper=new-ContextThemeWrapper（getContext（），R.style.MyPopupMenu）；
PopupMenu=新的PopupMenu（包装器，视图）；

谢谢。而不是“android:popupBackground”更好的输入：@drawable/some\u background\u drawable。谢谢。而不是“android:popupBackground”更好的输入：@drawable/some\u background\u drawable。谢谢。而不是“android:popupBackground”更好的输入：@drawable/some\u background\u drawable。谢谢。而不是“android:popupBackground”更好的类型：@drawable/some\u background\u drawable。