Center a large UIView using NSLayoutConstraint

Question

I am new to use Autolayouts, even this is my first try. Whatever I do with it, I end with a white screen as result. Here is my attempt.

I have a UIView,

Answer 1

Auto Layout Constraints is the best approach to what you are trying to achieve. Auto layout constraints are added automatically when you check the Use Autolayout option in the IB.

Check out this tutorial which tells more about auto layouts in iOS6 http://www.raywenderlich.com/20881/beginning-auto-layout-part-1-of-2

then you can check this link for the updated autolayout in iOS7 http://www.doubleencore.com/2013/09/auto-layout-updates-in-ios-7/