iOS zoomToRect持续时间

Question

可能重复:是否有
任何方法可以更改UIScrollView的zoomToRect的持续时间？

有没有办法复制[UIScrollView zoomToRect:zoomRect animated:YES]的行为,以便动画持续给定的持续时间？

Answer 1

你可以把它放在你的UIScrollView子类中:

- (void)zoomToRect:(CGRect)rect animated:(BOOL)animated
{
    [UIView animateWithDuration:(animated?0.3f:0.0f)
                          delay:0
                        options:UIViewAnimationOptionBeginFromCurrentState
                     animations:^{
                         [super zoomToRect:rect animated:NO];
                     } 
                     completion:nil];
}