How to override three finger accessibility zoom gesture?

2018-07-04 08:13:38

I am trying to create a gesture recognizer that responds to three touches, but the gesture is ignored if the user has the accessibility zoom feature enabled, which triggers off a three finger double tap.

My view uses massive UI elements, so zooming is not appropriate. Is there an api to disable the accessibility zoom so I can respond to a three finger tap?

You could try posting a UIAccessibilityPauseAssistiveTechnologyNotification though I believe this only refers to external ATs, and not to VoiceOver and Zoom features. Though I have not played around with it much.

EDIT: I just checked, the constant for disabling the zoom feature is not available in UIAccessibilityConstants.h . So this will not work, meaning there is no viable solution for this.

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