我有一个需要重复的动画,直到我决定停止它。
单击按钮后如何停止动画?
[UIView animateWithDuration:0.2 delay:0 options:(UIViewAnimationCurveLinear | UIViewAnimationOptionAutoreverse | UIViewAnimationOptionRepeat) animations:^{
CGAffineTransform transform = CGAffineTransformMakeRotation(DEGREES_TO_RADIANS(5));
self.transform = transform;
} completion:^(BOOL finished){
}];
答案 0 :(得分:12)
您必须添加另一个选项UIViewAnimationOptionAllowUserInteraction
...
你应该试试这个:
[UIView animateWithDuration:2 delay:0 options:UIViewAnimationCurveLinear | UIViewAnimationOptionAutoreverse | UIViewAnimationOptionRepeat | UIViewAnimationOptionAllowUserInteraction animations:^
{
view.frame = CGRectMake(0, 100, 200, 200);
} completion:^(BOOL finished)
{
if(! finished) return;
}];
要停止动画,请使用:
[view.layer removeAllAnimations];
答案 1 :(得分:2)
U可以改为使用CABasicAnimation。
CABasicAnimation *appDeleteShakeAnimation = [CABasicAnimation animationWithKeyPath:@"transform.rotation"];
appDeleteShakeAnimation.autoreverses = YES;
appDeleteShakeAnimation.repeatDuration = HUGE_VALF;
appDeleteShakeAnimation.duration = 0.2;
appDeleteShakeAnimation.fromValue = [NSNumber numberWithFloat:-degreeToRadian(5)];
appDeleteShakeAnimation.toValue=[NSNumber numberWithFloat:degreeToRadian(5)];
[self.layer addAnimation:appDeleteShakeAnimation forKey:@"appDeleteShakeAnimation"];
然后,当你想要停止它时,你可以打电话
[self.layer removeAnimationForKey:@"appDeleteShakeAnimation"];