ios - iOS8/iOS8苹果系统键盘的高度是多少？

Question

在 iOS 8 中，Apple 系统键盘的高度是多少，有和没有位于键盘顶部的预测文本栏？

Answer 1

使用

NSValue* keyboardFrame = [keyboardInfo valueForKey:UIKeyboardFrameEndUserInfoKey];

详细值

将UIKeyboardWillChangeFrameNotification的观察者添加到viewDidLoad；

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

委托(delegate)方法

- (void)keyboardWillChange:(NSNotification *)notification {
    NSDictionary* keyboardInfo = [notification userInfo];
    NSValue* keyboardFrame = [keyboardInfo valueForKey:UIKeyboardFrameEndUserInfoKey];
   NSLog("value ==%@",keyboardFrame);
}