Question

在我的iOS应用中，我正在尝试同时执行2个动画。但是，下面的代码不能满足我的要求。它取消了第一个动画，只取消了第二个动画（来自通知的动画）。至于第一个就在1秒之后才到达最终结果。

dispatch_async(dispatch_get_main_queue(), ^ {
    CGRect tempRect = CGRectMake(0, self.view.frame.size.height, toolbar.frame.size.width, toolbar.frame.size.height);
    [UIView animateWithDuration: 1.0f
    animations: ^ {
        toolbar.frame = tempRect;
    }
    completion: ^ (BOOL finished) {
        [toolbar setHidden: YES];
        isPlayerToolbarActive = NO;
    }];
});

[
    [NSNotificationCenter defaultCenter] postNotificationName: @"animateSidePanels"
    object: @"removingPlayerToolbar"];

// notification is sent here

-
(void) animateSidePanels: (NSNotification * ) notification {
    if ([notification.object isEqualToString: @"removingPlayerToolbar"]) {
        [self.interactionsViewController performExtendAnimation: self.interactionsViewController.view.frame.size.height + 44
        withDuration: 1.0f
        completion: ^ (BOOL finished) {

        }];
    }
}

-(void)performExtendAnimation:(CGFloat)newHeight withDuration:(CGFloat)duration completion:(void (^)(BOOL finished))completion
{
    [UIView animateWithDuration:duration animations:^{
    CGRect newFrame = CGRectMake(self.view.frame.origin.x,
                                 self.view.frame.origin.y,
                                 self.view.frame.size.width,
                                 newHeight);
    self.view.frame = newFrame;

}completion: completion];

} 任何形式的帮助都非常感谢！

Answer 1

尝试使用UIView的{{1}}方法，并在选项中提供animateWithDuration:delay:options:animations:completion:和UIViewAnimationOptionBeginFromCurrentState。

Answer 2

要为interactionViewController的扩展动画制作动画，请使用方法：

+[UIView animateWithDuration:delay:options:animations:completion:]

选项UIViewAnimationOption AllowAnimatedContent 。

一个UIView动画取消了iOS中的另一个动画

2 个答案: