UIView - How to get notified when the view is loaded?
ios, iphone, objective-c, uiview, viewdidload
Solution
Depending on what kind of actions you need to perform, there are several techniques:
- `-(id)initWithFrame:(CGRect)frame` - UIView's designated initializer; always sent to a UIView to initialize it, unless the view is loaded from a nib;
- `-(id)initWithCoder:(NSCoder *)coder` - always sent to initialize a UIView whenever the view is loaded from a nib;
- `-(void)awakeFromNib` - sent after all the objects in the nib are initialized and connected; applicable only if you load the object from a nib; you must call super;
- `-(void)willMoveToSuperview:(UIView *)newSuperview` - sent immediately before the view is added as a subview to another view; `newSuperview` may be nil when you remove the view from its superview;
- `-(void)willMoveToWindow:(UIWindow *)newWindow` - sent immediately before the view (or its superview) is added to a window; `newWindow` may be nil when you remove the view from a window;
- `-(void)didMoveToSuperview` - sent immediately after the view is inserted into a view hierarchy;
- `-(void)didMoveToWindow` - sent immediately after the view gets its window property set. -
Basically, you can choose to perform your actions during initialization (1 & 2), after loading from a nib (3), before insertion into a view hierarchy (4 & 5) and after that (6 & 7).
Problem
Is there anything similar to the `viewDidLoad` of `UIViewController` for a `UIView`??? I need to be notified as soon as a `UIView` has loaded (Subclass of `UIView`), and perform some actions.