KeyboardAvoider

KeyboardAvoider is the utility class for prevent covering TextField by software keyboard.

Usage

• Initialize KeyboardAvoider class with scrollView.

self.keyboardAvoider = KeyboardAvoider(scrollView: scrollView)

• Set UITextFieldDelegate to textField and call textFieldDidBeginEditing() in UITextFieldDelegate's textFieldDidBeginEditing()

func textFieldDidBeginEditing(_ textField: UITextField) {
    keyboardAvoider.textFieldDidBeginEditing(textField)
}

• Call beginObservingKeyboardEvent() in viewWillAppear()

override func viewWillAppear(_ animated: Bool) {
    super.viewWillAppear(animated)
    keyboardAvoider.beginObservingKeyboardEvent()
}

• Call endObservingKeyboardEvent() in viewWillDisappear()

override func viewWillDisappear(_ animated: Bool) {
    super.viewWillDisappear(animated)
    keyboardAvoider.endObservingKeyboardEvent()
}