[iOS] Fix NRE in Shell SearchHandlerAppearanceTracker #24970
Merged
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Description of Change
Fix crash on iOS involving Shell SearchHandler.
Fallback to
_defaultPlaceholderTintColor
iftargetColor
is null inUpdateClearPlaceholderIconColor
.Issues Fixed
Fixes #19504
A previous PR fixed an identical problem #11927
Steps to Reproduce
Create a shell with two shell content. Add a SearchHandler to one ShellContent ContentPage.
Start application. Click on the SearchHandler. Navigate to the other page. Navigate back. NullReferenceException crash.