UIView is not moving up when keyboard shown AutoLayout - ios

Question

My UIView is not moving up when keyboard shown and disappear when keyboard is hidden as well.
This coding is in ViewDidLoad
[[NSNotificationCenter defaultCenter] addObserver:self selector:#selector(keyboardDidShow:) name:UIKeyboardDidShowNotification object:nil];
[[NSNotificationCenter defaultCenter] addObserver:self selector:#selector(keyboardDidHide:) name:UIKeyboardDidHideNotification object:nil];
and this coding is for the rest.
- (void)keyboardDidShow:(NSNotification *)note
{
[self animateTextField:TRUE];
}
- (void)keyboardDidHide:(NSNotification *)note
{
[self animateTextField:FALSE];
}
-(void)animateTextField :(BOOL)up
{
const int movementDistance = -130; // tweak as needed
const float movementDuration = 1.0; // tweak as needed
int movement = (up ? movementDistance : - movementDistance);
[UIView beginAnimations: #"animateTextField" context: nil];
[UIView setAnimationBeginsFromCurrentState: YES];
[UIView setAnimationDuration: movementDuration];
_buttonsView.frame = CGRectOffset(_buttonsView.frame, 0, movement);
[UIView commitAnimations];
}

Answer 1

I think this suits your implementation:
-(void)animateTextField :(BOOL)up
{
const int movementDistance = -130; // tweak as needed
const float movementDuration = 1.0; // tweak as needed
int movement = (moveUp ? movementDistance : - movementDistance);
[UIView beginAnimations: #"animateTextField" context: nil];
[UIView setAnimationBeginsFromCurrentState: YES];
[UIView setAnimationDuration: movementDuration];
_buttonsView.frame = CGRectOffset(_buttonsView.frame, 0, movement);
[UIView commitAnimations];
[_buttonsView setNeedsLayout];
}
Edit
I tried your code and calling setNeedsLayout did the work..

Answer 2

With auto-layout you animate the constraint constant, though you don't change the CGRect frames. That was the old way.
Please see this link that I answered a similar question that they were having issues animating the movement of a UIView
Animate UIView with layoutConstraints
This should help, though feel free to let me know if you need anything clarified.

Answer 3

use just below code you don't need to call it from any where
#pragma mark - move view up when keyboard is displayed
- (void)textFieldDidBeginEditing:(UITextField *)textField
{
[self animateTextField: textField up: YES];
}
- (void)textFieldDidEndEditing:(UITextField *)textField
{
[self animateTextField: textField up: NO];
}
- (void) animateTextField: (UITextField*) textField up: (BOOL) up
{
const int movementDistance = 80; // tweak as needed
const float movementDuration = 0.3f; // tweak as needed
int movement = (up ? -movementDistance : movementDistance);
[UIView beginAnimations: #"anim" context: nil];
[UIView setAnimationBeginsFromCurrentState: YES];
[UIView setAnimationDuration: movementDuration];
contentView.frame = CGRectOffset( contentView.frame, 0, movement);
[UIView commitAnimations];
}