ARC-将uiview作为子视图添加到另一个uiview时使用强弱

Question

I am creating an ipad app where I add many UIImageviews over other UIViews and UIImageviews. I am not sure whether to use strong or weak while adding UIImageviews as subviews . I have created a project without ARC and now I am looking forward to convert it to ARC(because of "easy memory management") but still not sure about how should I type(weak/strong) my views.

Answer 1

Are you really trying to add subviews to a view or to add reference to subviews in a view controller?

If your parent class is a subclass of UIView, you're really adding subviews to a view. So addSubview method add a strong reference to your view. You can use weak reference.

If your parent class is a subclass of UIViewController, you're not really adding subviews to a view. So nothing add strong reference to your object. Use a strong reference.