SCLAlertView don't move when keyboard shows - ios

Question

I'm using SCLAlertView and add custom view with UITextView, my problem is when showing keyboard at first time the SCLAlertView not moving, see this picture
I write this code to move SCLAlertView when keyboard will show
- (void)viewWillAppear:(BOOL)animated
{
[super viewWillAppear:animated];
[[NSNotificationCenter defaultCenter] addObserver:self selector:#selector(keyboardWillShowFirstView:) name:UIKeyboardWillShowNotification object:nil];
[[NSNotificationCenter defaultCenter] addObserver:self selector:#selector(keyboardWillHideFirstView:) name:UIKeyboardWillHideNotification object:nil];
}
- (void)viewDidDisappear:(BOOL)animated
{
[super viewDidDisappear:animated];
[[NSNotificationCenter defaultCenter] removeObserver:self name:UIKeyboardWillShowNotification object:nil];
[[NSNotificationCenter defaultCenter] removeObserver:self name:UIKeyboardWillHideNotification object:nil];
}
- (void)keyboardWillShowFirstView:(NSNotification *)notification
{
CGSize screenSize = [UIScreen mainScreen].bounds.size;
CGRect dialogRect = addAlert.view.frame;
CGFloat keyboardHeight = [[[notification userInfo] objectForKey:UIKeyboardFrameEndUserInfoKey] CGRectValue].size.height;
CGFloat top = (screenSize.height - keyboardHeight - dialogRect.size.height) / 2;
NSLog(#"show........: %.0f", top);
[UIView animateWithDuration:0.2 animations:^{
CGRect frame = addAlert.view.frame;
frame.origin.y = top;
addAlert.view.frame = frame;
}];
}
- (void)keyboardWillHideFirstView:(NSNotification *)notification
{
CGSize screenSize = [UIScreen mainScreen].bounds.size;
CGRect dialogRect = addAlert.view.frame;
CGFloat top = (screenSize.height - dialogRect.size.height) / 2;
NSLog(#"...hide.....: %.0f", top);
[UIView animateWithDuration:0.2 animations:^{
CGRect frame = addAlert.view.frame;
frame.origin.y = top;
addAlert.view.frame = frame;
}];
}
Now when I hide & show keyboard manually in simulator "Command+K" it's moving right!!
Can someone help to fix that!

Answer 1

Try to hook the centerY constraint of the AlertView as IBOutlet and change it's constant as the keyboard is shown/Hidden
like this
(void)keyboardWillShowFirstView:(NSNotification *)notification
{
CGSize screenSize = [UIScreen mainScreen].bounds.size;
CGRect dialogRect = addAlert.view.frame;
CGFloat keyboardHeight = [[[notification userInfo] objectForKey:UIKeyboardFrameEndUserInfoKey] CGRectValue].size.height;
CGFloat top = -1 * (keyboardHeight / 2.0);
self.alertViewCenterY.constant = top
[UIView animateWithDuration:0.2 animations:^{
[self.view layoutIfNeeded];
}];
}
- (void)keyboardWillHideFirstView:(NSNotification *)notification
{
self.alertViewCenterY.constant = 0
[UIView animateWithDuration:0.2 animations:^{
[self.view layoutIfNeeded];
}];
}
Note: You may hook Top or bottom constraint If you want