Is it possible to change the background color of items of Dropdown component?

[chelicksst]

I'm developing a .NET MAUI project for Android.

It's possible to change the background color of the placeholder, of the text of the placeholder. But is it possible for the background of the dropdown list itself? I mean in XAML code of the page.

[enisn]

That is a tough question to answer. Here how it works:

It creates a Android.Widget.PopupMenu and opens it on the native layer:

UraniumUI/src/UraniumUI/Handlers/DropdownHandler.Android.cs

Line 31 in 1deac10

var popupMenu = new Android.Widget.PopupMenu(activity, PlatformView, GetGravityFlags(VirtualViewDropdown.HorizontalTextAlignment));

This popupmenu inherits style from default Material theme of the android SDK, and I couldn't find any property to set it separately. It may be configured for entire application easily:
https://stackoverflow.com/a/48161007/7200126

But not sure about theming menus separately for each instance

You can create a style.xml file under your \Platforms\Android\Resources\values folder and define a new theme for android. Use it in the MainActivty to make it work. There should be a documentation for it for MAUI. I'll check it

[enisn]

That might help: https://learn.microsoft.com/en-us/answers/questions/1005346/create-own-theme-on-android-in-net-maui

[chelicksst]

That might help: https://learn.microsoft.com/en-us/answers/questions/1005346/create-own-theme-on-android-in-net-maui

Thank you very much! It helped!) Here's the solution:

In Platforms/Android/Resources/values/colors.xml we override the default styles:

<style name="MyAppTheme" parent="Maui.SplashTheme">
	<item name="android:textColor">@android:color/white</item>
	<item name="android:itemBackground">@android:color/black</item>
</style>

The important thing is the inheritance from Maui.SplashTheme.
Then in Platforms/Android/MainActivity.cs we apply our styles:

[Activity(Theme = "@style/MyAppTheme", ...]
public class MainActivity : MauiAppCompatActivity
{
}

But it removes the border around the popup. I think there's a way to fix it, but I haven't found it yet.

[chelicksst]

That might help: https://learn.microsoft.com/en-us/answers/questions/1005346/create-own-theme-on-android-in-net-maui

Also I wanted to say Thank you for this great UraniumUI extension for .NET MAUI! It really provides some useful things that .NET MAUI doesn't have =)