Fix for picker on hidden page opens after back navigation in Android #25319
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… only pop up when tapped or the Enter key is pressed.
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Hey there @BagavathiPerumal! Thank you so much for your PR! Someone from the team will get assigned to your PR shortly and we'll get it reviewed. |
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Root cause
The root cause of the issue is that the picker on MainPage unexpectedly opens the Picker dialog popup in FirstPage when navigating back, even though MainPage is not currently visible. This occurs because the Picker's focus changes during navigation back to FirstPage using Navigation.PopModalAsync(), triggering a click operation on the Picker, which opens the dialog regardless of MainPage's visibility.
Description of Issue Fix
The fix involves removing the auto-open behavior on focus from the Pickers by eliminating the FocusChanged event, which handled the Picker's OnClick operation when focus changed. This adjustment prevents the Picker dialog from opening during page navigation.
Specifically, when the Picker gains focus, the previous implementation would trigger PlatformView.CallOnClick() or OnClick(PlatformView, EventArgs.Empty), leading to the unwanted dialog popup. Additionally, the FocusableInTouchMode property is set to false to ensure that the Pickers do not gain focus unexpectedly.
Tested the behavior in the following platforms.
Issues Fixed
Fixes #24862
Reference
Similar code changes have been applied to the DatePicker and TimePicker dialogs to enable auto-opening after resolving the navigation issue. The link to the PR containing the changes is mentioned below.
#8913
Output
24862-BeforeFix.mp4
24862-AfterFix.mp4