Objective c UIKeyboardWillShowNotification不调用,只有UIKeyboardWillHideNotification在iOS 9中调用
在iOS 8之前一切正常。 但当用户点击文本字段时,控件直接进入UIKeyboardWillHideNotification通知 登录控制台-找不到支持键盘iPhoneTruffle NumberPad类型4的键盘平面;使用675849259_Turfle_iPhone-Simple-Pad_默认值 这是代码--Objective c UIKeyboardWillShowNotification不调用,只有UIKeyboardWillHideNotification在iOS 9中调用,objective-c,iphone,notifications,uitextfield,ios9,Objective C,Iphone,Notifications,Uitextfield,Ios9,在iOS 8之前一切正常。 但当用户点击文本字段时,控件直接进入UIKeyboardWillHideNotification通知 登录控制台-找不到支持键盘iPhoneTruffle NumberPad类型4的键盘平面;使用675849259_Turfle_iPhone-Simple-Pad_默认值 这是代码-- 这可能与模拟器设置有关,请参阅菜单“硬件>键盘>连接键盘硬件”。如果此选项处于启用状态,您将获得UIKeyboardWillHideNotification,但决不会UIKeyboar
这可能与模拟器设置有关,请参阅菜单“硬件>键盘>连接键盘硬件”。如果此选项处于启用状态,您将获得
UIKeyboardWillHideNotification
,但决不会UIKeyboardWillShowNotification
这是模拟的问题,也会有类似的问题。您的代码是否只在真实设备上工作?
`
In view did load
- (void)viewDidLoad {
[super viewDidLoad];
self.txtMobNumber.delegate = self;
self.txtMobNumber.keyboardType = UIKeyboardTypeNumberPad;
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(keyboardWillShow:) name:@"UIKeyboardWillShowNotification" object:nil];
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(keyboardWillHide:) name:@"UIKeyboardWillHideNotification" object:nil];
}
notification callback
- (void)keyboardWillShow:(NSNotification *)notification
{
// Save the height of keyboard and animation duration
NSDictionary *userInfo = [notification userInfo];
CGRect keyboardRect = [userInfo[@"UIKeyboardBoundsUserInfoKey"] CGRectValue];
[UIView beginAnimations:@"moveKeyboard" context:nil];
float height = keyboardRect.size.height-60;
self.view.frame = CGRectMake(self.view.frame.origin.x, self.view.frame.origin.y - height, self.view.frame.size.width, self.view.frame.size.height);
[UIView commitAnimations];
// [self setNeedsUpdateConstraints];
}
// Reset the desired height
- (void)keyboardWillHide:(NSNotification *)notification
{
// Reset the desired height (keep the duration)
NSDictionary *userInfo = [notification userInfo];
CGRect keyboardRect = [userInfo[@"UIKeyboardBoundsUserInfoKey"] CGRectValue];
[UIView beginAnimations:@"moveKeyboard" context:nil];
float height = keyboardRect.size.height-60;
self.view.frame = CGRectMake(self.view.frame.origin.x, self.view.frame.origin.y + height, self.view.frame.size.width, self.view.frame.size.height);
[UIView commitAnimations];
}
`