iOS UIButton - Difference between UIButton setUserInteractionEnabled and setEnabled

Question

Wait!!!:
I know that you may think this question have been asked and answered several time before. But I can guarantee you that this questi

Answer 1

@property(nonatomic, getter=isUserInteractionEnabled) BOOL userInteractionEnabled

A Boolean value that determines whether user events are ignored and removed from the event queue. When set to NO, user events—such as touch and keyboard—intended for the view are ignored and removed from the event queue. When set to YES, events are delivered to the view normally. The default value of this property is YES.

Discussion:

During an animation, user interactions are temporarily disabled for all views involved in the animation, regardless of the value in this property. You can disable this behavior by specifying the UIViewAnimationOptionAllowUserInteraction option when configuring the animation.

Apple Doc on UIView

@property(nonatomic, getter=isEnabled) BOOL enabled

A Boolean value that determines whether the receiver is enabled.

Discussion:

Specify YES to make the control enabled; otherwise, specify NO to make it disabled. The default value is YES. If the enabled state is NO, the control ignores touch events and subclasses may draw differently.

For your reference:

1. Apple Doc on UIControl
2. SO Q&A

As @danh states:

"At least one reason is that during animation, user interaction is disabled on UIViews. It would be wrong for controls to draw themselves as greyed out while they are animated. So at least during animation, the two properties have distinct meanings."