IOS adds an animation to hide a view

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When creating an image wallpaper application, you need to hide the tab and navigation bar at the bottom of the wallpaper. These systems are all animated.

Then, I added the like button to the wallpaper and set its hidden to work with the dynamic hiding of tabs.

Button. Hidden = yes;

However, it is found that the button is instantaneous and does not match the tab animation.

Therefore, an animation is added to the hidden action of the button. As follows:

-(Void) Hidden {catransition * animation = [catransition animation]; animation. type = kcatransitionfade; animation. duration= 0.4; [button. layer addanimation: animation forkey: Nil]; button. hidden = yes ;}

You only need the above code for each hidden operation.

Ref: http://stackoverflow.com/questions/9115854/animating-hide-show