objective c - How to return BOOL from animateWithDuration? -

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i try create method , return bool type animatewithduration. object seems not detected on completion block. can explain me, why can happen?

+ (bool)showanimationfirstcontent:(uiview *)view {     bool status = no;      cgrect show = [swfirstcontent rectfirstcontentshow];      [uiview animatewithduration:duration                           delay:delay                         options:uiviewanimationoptionbeginfromcurrentstate                      animations:^{ view.frame = show; }                      completion:^( bool finished ) {                          status = yes;                      }];     return status; }

thanks advance.

you setting status value inside block executed asynchronously. meaning, return statement not guaranteed executed after block executed. know when animation finished need declare method in different way.

+ (void)showanimationfirstcontent:(uiview *)view completion:(void (^)(void))callbackblock{      cgrect show = [swfirstcontent rectfirstcontentshow];      [uiview animatewithduration:duration                           delay:delay                         options:uiviewanimationoptionbeginfromcurrentstate                      animations:^{ view.frame = show; }                      completion:^( bool finished ) {                          callbackblock();                      }]; }

and can call method this:

[myclass showanimationfirstcontent:aview completion:^{ //this block executed when animation finished     [self dowhateveryouwant]; }];

you may want read bit more how block works.

hope helps.


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