Tuesday, 12 December 2017

Dynamic Constraint



A. First set static constraint of a view like - Button, Image, UIView etc.

1. Select a constraint (Leading, Top, Trailing, Bottom)  and drag to View Controller IBOutlet

Code -  @IBOutlet weak var leadingConstraint: NSLayoutConstraint!

 2. Constraint :

Code - leadingConstraint.constant = 100

3. Check constraint available

Code - leadingConstraint.isActive

4.


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