Centering two buttons with Cocoa Auto Layout

Question

I have a problem with Cocoa Auto Layout and can\'t get my head around this problem. All I\'d like to achieve is to have two buttons always centered in a view as depicted below.<

Answer 1

You can achieved as below way also.

1.Take Leading space for left button, Trailing space for right button.
2.Construct Outlets for both Leading and Trailing constraints.

 __weak IBOutlet NSLayoutConstraint *leadingConstraint;
 __weak IBOutlet NSLayoutConstraint *trailingConstraint;

3.Caluclate constants as below formula.

NSInteger constant = (SCREEN_WIDTH - (CGRectGetWidth(leftButton.frame) + CGRectGetWidth(rightButton.frame))) / 3;
    leadingConstraint.constant = constant;
    trailingConstraint.constant = constant;

Hope it will helps you.