Last Updated: February 25, 2016

iOS - Centering view vertically and horizontally using autolayout programmatically

Centering a view using Auto Layout constrains via GUI builder is easy as drinking water. Here some example how to do that programmatically:

[self.view addConstraint:
 [NSLayoutConstraint constraintWithItem:self.view
 attribute:NSLayoutAttributeCenterX
 relatedBy:0
 toItem:view
 attribute:NSLayoutAttributeCenterX
 multiplier:1
 constant:0]];

[self.view addConstraint:
 [NSLayoutConstraint constraintWithItem:self
 attribute:NSLayoutAttributeCenterY
 relatedBy:0
 toItem:view
 attribute:NSLayoutAttributeCenterY
 multiplier:1
 constant:0]];

source : http://stackoverflow.com/a/21494707/1467988

#ios

#objective-c