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[help] textfield.didBeginEditing() is not being called on the first ...

I have set the UITextfieldDelegate to self, i just can't seem to figure out why it doesn't get called till the 2nd time.

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查詢 「UITextFieldDelegate」的人也找了：

  1. becomeFirstResponder
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  5. textFieldShouldBeginEditing
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  6. UITextInputTraits
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  7. textFieldDidBeginEditing
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  8. textFieldDidEndEditing
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