Я пытаюсь добавить UIToolbar на UIKeyboard, чтобы имя пользователя могло легко переключаться между двумя текстовыми полями. Однако я не могу заставить его работать. Пожалуйста, вы можете сказать мне, что я делаю неправильно. Я настроил Центр уведомлений в моем viewDidLoad.
- (void)keyboardWillShow:(NSNotification *)notification {
for (UIWindow *keyboardWindow in [[UIApplication sharedApplication] windows]) {
// Now iterating over each subview of the available windows
for (UIView *keyboard in [keyboardWindow subviews]) {
// Check to see if the description of the view we have referenced is UIKeyboard.
// If so then we found the keyboard view that we were looking for.
if([[keyboard description] hasPrefix:@"<UIKeyboard"] == YES) {
NSValue *v = [[notification userInfo] valueForKey:UIKeyboardBoundsUserInfoKey];
CGRect kbBounds = [v CGRectValue];
UIToolbar *input = [[UIToolbar alloc] initWithFrame:CGRectMake(0, 0, kbBounds.size.width, 50)];
UIBarButtonItem *previous = [[UIBarButtonItem alloc] initWithTitle:@"Previous" style:UIBarButtonItemStylePlain target:self action:@selector(previousTextField:)];
UIBarButtonItem *next = [[UIBarButtonItem alloc] initWithTitle:@"Next" style:UIBarButtonItemStylePlain target:self action:@selector(nextTextField:)];
UIBarButtonItem *space = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemFlexibleSpace target:nil action:nil];
UIBarButtonItem *done = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemDone target:self action:@selector(hideKeyboard:)];
[input setItems:[NSArray arrayWithObjects:previous,next,space,done,nil]];
if(input == nil) {
UIToolbar *input = [[UIToolbar alloc] initWithFrame:CGRectMake(0, 0, kbBounds.size.width, 50)];
UIBarButtonItem *previous = [[UIBarButtonItem alloc] initWithTitle:@"Previous" style:UIBarButtonItemStylePlain target:self action:@selector(previousTextField:)];
UIBarButtonItem *next = [[UIBarButtonItem alloc] initWithTitle:@"Next" style:UIBarButtonItemStylePlain target:self action:@selector(nextTextField:)];
UIBarButtonItem *space = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemFlexibleSpace target:nil action:nil];
UIBarButtonItem *done = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemDone target:self action:@selector(hideKeyboard:)];
[input setItems:[NSArray arrayWithObjects:previous,next,space,done,nil]];
}
[input removeFromSuperview];
input.frame = CGRectMake(0, 0, kbBounds.size.width, 30);
[keyboard addSubview:input];
keyboard.bounds = CGRectMake(kbBounds.origin.x, kbBounds.origin.y, kbBounds.size.width, kbBounds.size.height + 60);
for(UIView* subKeyboard in [keyboard subviews]) {
if([[subKeyboard description] hasPrefix:@"<UIKeyboardImpl"] == YES) {
subKeyboard.bounds = CGRectMake(kbBounds.origin.x, kbBounds.origin.y - 30, kbBounds.size.width, kbBounds.size.height);
}
}
}
}
}
}