Since Xamarin.Forms 3.1 a TabbedPage.BarSelectedItemColor property has been introduced and we can simply use it to achieve our goal.
Unfortunately on iOS we have to implement the solution ourselves. Luckily there is a TintColor property on a
UITabBar that we can use.
We will create an
Effect using the knowledge listed above. The effect will have a single AttachedProperty which will represent the selected tab tint color:
Next we will create the
Here is the Android implementation:
Here is the iOS implementation:
In both cases we are monitoring
SelectedTabTintColorProperty for changes and once changed simply applying a new
Now we can just add the effect to our
TabbedPage and change the tint color for example
OnCurrentPageChanged so each tab will have its own tint color.
Full example can be found on github.