我的 View 中有六个 UITextField，我想决定 View 是否必须移动。如何在移动 View 之前检查选择了哪个 TextField？
这就是我显示键盘和移动 View 的代码:
NSNotificationCenter.defaultCenter().addObserver(self, selector: Selector("keyboardWillShow:"), name: UIKeyboardWillShowNotification, object: nil)
NSNotificationCenter.defaultCenter().addObserver(self, selector: Selector("keyboardWillHide:"), name: UIKeyboardWillHideNotification, object: nil)
func keyboardWillShow(notification: NSNotification) {
if let keyboardSize = (notification.userInfo?[UIKeyboardFrameBeginUserInfoKey] as? NSValue)?.CGRectValue() {
self.view.frame.origin.y -= keyboardSize.height - 85
}
}
func keyboardWillHide(notification: NSNotification) {
if let keyboardSize = (notification.userInfo?[UIKeyboardFrameBeginUserInfoKey] as? NSValue)?.CGRectValue() {
self.view.frame.origin.y += keyboardSize.height - 85
}
}
最佳答案
如果您想知道选择了哪个UITextField，可以使用textFieldDidBeginEditing和textFieldDidEndEditing
func textFieldDidBeginEditing(textField: UITextField!) {
currentSelectedTextField = textField
}
func textFieldDidEndEditing(textField: UITextField!) {
currentSelectedTextField = nil
}
关于如何在选择 UITextField 时管理键盘的引用:https://developer.apple.com/library/ios/documentation/StringsTextFonts/Conceptual/TextAndWebiPhoneOS/KeyboardManagement/KeyboardManagement.html
关于ios - 出现键盘时快速移动 View ，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/35089529/