ios - Animation doesn't work -


i have problem animation. problem if try animate view created goes well, if try create , animate view @ same time animation doesn't work.

can me?

my methods

+ (loginview *)sharedinstance {     @synchronized(self) {         if (nil == _sharedinstance) {             _sharedinstance = (loginview *)[[[nsbundle mainbundle] loadnibnamed:@"loginview" owner:nil options:nil] objectatindex:0];         }     }     return _sharedinstance; }  - (void)hide:(bool)value animated:(bool)animated {     catransition * animation = [catransition animation];      animation.type = kcatransitionfade;     [animation setduration:1.0];      if(_automanagemodalview)         [animation setdelegate:self];      [[self layer] removeallanimations];     [[self layer] addanimation:animation forkey:kcatransition];      self.hidden = value; }

how call them

[[loginview sharedinstance] hide:no animated:yes];

the first time (with same call) animation doesn't work, secondo time goes well. thank in advance!

you animating view in lifecycle. in theory, create view, display somewhere (e.g., addsubview:), animate it.

it highly possible, though have not checked it, first time hide:animated: method called self.layer property null; in case, animation happen before view displayed, not see it.

all in all, first display view, call hide:animated: method on it.

after comment: try , call hide:animated: method through method like:

 performselector:withobject:afterdelay:

if specify 0.0 delay, queue call hide:animate: on main loop, processing related loadnibnamed: can happen , give view time set display correctly.

in order use performselector:withobject:afterdelay: need modify method signature takes 1 argument , must nsobject-derived type, not primitive type.


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