objective c - I want to flash an UIImageview on the iPad, how do I do that? -

i want let uiimageview flash several times.

currently don't know how that.

actual code:

-(void)arrowsanimate{     [uiview animatewithduration:1.0 animations:^{         arrow1.alpha = 1.0;         arrow2.alpha = 1.0;         arrow3.alpha = 1.0;         nslog(@"alpha 1");     } completion:^(bool finished){                  [self arrowsanimate2];      }]; }  -(void)arrowsanimate2{     [uiview animatewithduration:1.0 animations:^{          arrow1.alpha = 0.0;          arrow2.alpha = 0.0;          arrow3.alpha = 0.0;          nslog(@"alpha 0");     } completion:^(bool finished){;}]; } 

later on call this:

for (int = 0;i < 10; i++){ [self arrowsanimate]; } 

this gives me 10x alpha 1, , 10x alpha 0. in middle see 1 animation. suggestions?

thanks.

there simpler way achieve flashing animation using 1 animation block:

aview.alpha = 1.0f; [uiview animatewithduration:0.5f                       delay:0.0f                      options:uiviewanimationoptionautoreverse                  animations:^ {        [uiview setanimationrepeatcount:10.0f/2.0f];        aview.alpha = 0.0f; } completion:^(bool finished) {         [aview removefromsuperview];  }];     

the trick use [uiview setanimationrepeatcount:ntimes/2]; *_inside_* animation block. no need functions or loops.