如何检测键盘类型的变化与新键盘类型的大小，类型，建议栏高度？

有没有办法检测键盘类型的变化与大小，类型和建议栏高度，从英语键盘更改为印地语，其中包含某种建议栏（见截图）。

普通英语键盘

第一个问题

改为印地语LIPI后 – 当我改变时，everthing很好，因为英语和印地语键盘的大小相同，但在开始输入印地语Lipi建议覆盖TextField

第二个问题

更改为表情符号 – 表情符号键盘高度与英语相比稍微多一点，所以再次键盘覆盖TextField 。

Answer 1

添加一个名为“UIKeyboardWillChangeFrameNotification”的通知的观察者。

通知的“userInfo”字典在屏幕上具有多个键盘框架。

添加一个观察者

 [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(logNotification:) name:UIKeyboardWillChangeFrameNotification object:nil]; 

选择器与记录器

 - (void)logNotification:(NSNotification *)notification { NSLog(@"%@", notification); } 

userInfo字典内容

 userInfo = { UIKeyboardAnimationCurveUserInfoKey = 7; UIKeyboardAnimationDurationUserInfoKey = 0; UIKeyboardBoundsUserInfoKey = "NSRect: {{0, 0}, {320, 216}}"; UIKeyboardCenterBeginUserInfoKey = "NSPoint: {160, 441.5}"; UIKeyboardCenterEndUserInfoKey = "NSPoint: {160, 460}"; UIKeyboardFrameBeginUserInfoKey = "NSRect: {{0, 315}, {320, 253}}"; UIKeyboardFrameEndUserInfoKey = "NSRect: {{0, 352}, {320, 216}}"; UIKeyboardIsLocalUserInfoKey = 1; }} 

Answer 2

我也面临同样的问题。 我通过使用下面的代码解决了

 CGSize keyboardSize = [aNotification.userInfo[UIKeyboardFrameEndUserInfoKey] CGRectValue].size; 

使用UIKeyboardFrameEndUserInfoKey而不是使用UIKeyboardFrameBeginUserInfoKey。

Answer 3

斯威夫特4

注册观察员

 NotificationCenter.default.addObserver(self,selector:#selector(KeyboardWillChangeFrame),name:NSNotification.Name.UIKeyboardWillChangeFrame,object: nil) 

function

  @objc func KeyboardWillChangeFrame(_ notification: Notification){ if let keyboardSize = (notification.userInfo?[UIKeyboardFrameEndUserInfoKey] as? NSValue)?.cgRectValue { let keyboardHeight = keyboardSize.height print("New Keyboard Height:",keyboardHeight) } } 

Answer 4

您需要按照屏幕上显示的方式获得键盘的高度

• 发送UIKeyboardWillShowNotification时键盘高度为224

注册针对UIKeyboardWillShowNotification和UIKeyboardWillHideNotification通知的观察者：

 [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(keyboardWillShow:) name:UIKeyboardWillShowNotification object:nil]; [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(keyboardWillHide:) name:UIKeyboardWillHideNotification object:nil]; 

设置键盘高度的全局变量：

 CGFloat _currentKeyboardHeight = 0.0f; 

实现keyboardWillShow和keyboardWillHide以对键盘高度的当前变化作出反应：

 - (void)keyboardWillShow:(NSNotification*)notification { NSDictionary *info = [notification userInfo]; CGSize kbSize = [[info objectForKey:UIKeyboardFrameEndUserInfoKey] CGRectValue].size; CGFloat deltaHeight = kbSize.height - _currentKeyboardHeight; // Write code to adjust views accordingly using deltaHeight _currentKeyboardHeight = kbSize.height; } - (void)keyboardWillHide:(NSNotification*)notification { NSDictionary *info = [notification userInfo]; CGSize kbSize = [[info objectForKey:UIKeyboardFrameEndUserInfoKey] CGRectValue].size; // Write code to adjust views accordingly using kbSize.height _currentKeyboardHeight = 0.0f; }