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When a button's style is changed and the button is disabled (IsEnabled=false) the styling does not work.
A sample solution is available at https://github.com/KolibriDev/TestXFBugs
This project has Xamarin.Forms 188.8.131.52 installed.
To replicate the problem:
* Build and run the Droid project.
* Navigate to the PinPage from the LoginPage (by filling out all entries)
* Click twice on any button on the PinPage
* The text for the buttons disappears
When the user clicks twice on any button on the PinPage, all buttons become disabled and the style WhiteButtonDisabled is applied which should change the TextColor of the buttons. Instead, the text for the buttons disappears. Note that if the buttons are not disabled when changing the style, the styling works.
XF doesn't expose properties to set disabled colors on controls. the style looks correctly applied, but given your style and the disabled state applied by android, your text is no longer visible. Tweak your style os that, once desaturated by android, you're still able to read the numbers
e.g., this style shows that the disabled style is applied, and the text is readable
<Style x:Key="WhiteButtonDisabled" TargetType="Button">
<Setter Property="BackgroundColor" Value="Red" />
<Setter Property="TextColor" Value="Black" />
<Setter Property="FontSize" Value="16" />
I have now changed the solution so it uses custom renderers to change text and background colors when the buttons are disabled.
It is strange, however, that the button's text on Droid is visible in XF 184.108.40.206, but not visible in XF 220.127.116.11.