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Comment by Sebastian Hoppe on "Customize the Title Bar of a MAUI app with these simple steps" | Hashnode

Sebastian Hoppe

Aug 25, 2023

P.S.: Actually, it regards to all popup views, such as alert views (DisplayAlert(...)), picker selection views and others. That's why - in my case - it would be sensible to add a theme for that. But how?

Julian Ewers-Peters

Mobile App Developer

Aug 27, 2023

Hi Sebastian Hoppe,

popups such as alert dialogs and the picker use native platform views. In order to theme those, you need to use platform-specific code.

This can be achieved either by using custom renderers (the old-fashioned Xamarin.Forms way), control customization using handlers and mappers or by manually setting color values in the styles.xml of the Android platform, similar to how I have described it in my blog post about splash screens in MAUI.

I hope this helps.

Cheers Julian

Sebastian Hoppe

Aug 29, 2023

Hi Julian Ewers-Peters,

actually I tried Handler (found one to change the color of the "3-point-item" but sadly not for the popup background color). In the colors.xml I could change the default purple color of the dialog buttons which is hard to see on dark grey background. If you are able to change the background color of the popup, that contains your secondary toolbar items, to green which would fit your color style nicely please let me know. :-)

Regards. Sebastian.