iOS 16.4: UISearchTextField.resignFirstResponder() --> app hangs, CPU 100%

Question

Created Mar ’23

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Since iOS 16.4, my apps hangs when I dismiss the keyboard in viewWillDisappear(). Here is my code:

override func viewWillDisappear(_ animated: Bool) {
    super.viewWillDisappear(animated)
    DLog("will disappear &lt;&lt;&lt;&lt;&lt;")
    dismissKeyboard()
}

fileprivate func dismissKeyboard() {
    self.filenameSearchTextField.resignFirstResponder()
}

App hangs, CPU is 100%, memory usage is increasing. The hangs happen on the resignFirstResponder() call.

What's going on here?

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Answer 1

MobileTen OP

Mar ’23

You can try checking to see if the control is still the first responder before resigning it also remove the DLog as well and see what happens.

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