Driving Task Crash When Adding Action Sheet or Alert

Question

Created Dec ’23

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I have a driving task app and am trying to show a CPActionSheetTemplate or a CPAlertTemplate. Both of these are crashing showing:

Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: 'Unsupported object <CPActionSheetTemplate: 0x6000030319e0> <identifier: C744031B-99F6-4999-AF19-6ED43140502B, userInfo: (null), tabTitle: (null), tabImage: (null), showsTabBadge: 0> passed to pushTemplate:animated:completion:. Allowed classes: {(
    CPSearchTemplate,
    CPNowPlayingTemplate,
    CPPointOfInterestTemplate,
    CPListTemplate,
    CPInformationTemplate,
    CPContactTemplate,
    CPGridTemplate,
    CPMapTemplate
)}'

This is very strange, because in the docs all app types are allowed to show ActionSheets and Alerts.

Screenshot 2023-12-21 at 3.17.05 PM.jpg

Why is this crashing?

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Answer 1

Frameworks Engineer OP

Apple

Jan ’24

Hi! The action sheet, alert, and voice control templates are presented modally on top of the currently-visible template; they are not pushed onto the template stack. So instead of using -[CPInterfaceController pushTemplate:animated:completion:], you should use -[CPInterfaceController presentTemplate:animated:completion:].

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