animateWithDuration动画是非常不可预测的

Question

This question is asked a lot of people but I have not really found the answer to it.

I have some class where inside many other methods with animation

someClass.m
@implementation

////..

-(void) someAnimationWithSomeObject (someParameters...blablabla

    [UIView animateWithDuration:0.2f
                          delay:delay
                        options:UIViewAnimationOptionCurveEaseOut
                     animations:^
     {
         self.center = point;
         self.transform = CGAffineTransformMakeRotation(_angle);
     }
                     completion:nil)];

in ViewController

-(void) someMethod1 {
/.....


for (int i=0; i < count; i++) {

/...some operation with coordinates

        [self.cardContainer addSubview:someView];

        [someView someAnimationWithSomeObject:someParameters withDelay:delay];
        delay += 0.2f; 
/... }

[self someMethod2];

}

-(void) someMethod2 {
/.....


for (int i=0; i < count; i++) {

/...some operation with coordinates

        [self.cardContainer addSubview:someView];

        [someView someAnimationWithSomeObject:someParameters withDelay:delay];
        delay += 0.2f; 
/... }

}

- (void)viewDidLoad
{
    [super viewDidLoad];

    [self someMethod1];

}

When I use this code animation is very unpredictable, because when call someMethod2 calculation of coordinates is fastest then animation.

how to make the animation to play in the first method and then in the second in etc.

[solved]

after someMethod1 adding

 [self performSelector:@selector(someMethod2) withObject:nil afterDelay:delay];

and need some correction with delay + or -

it's well done!

Answer 1

Consider starting the second method in the completion block of the first. That is, "Do this animation; then, when it's finished, call someMethod2 and start the next animation.