在pushViewController过渡期间，UIButton动画可以继续吗？

Question

我正在选择按钮增长和缩小而不是突出显示。目标是在点击按钮时使按钮增长...并在发布时同时执行两个动作：

1. 使用pushViewController进行屏幕转换
2. 在过渡期间将按钮缩小回正常尺寸

我的问题：我无法同时完成1＆amp; 2。屏幕转换似乎取消了发布动画。在过渡期间，按钮仍保持大尺寸。

Screeshots

• 左下角的正常尺寸Feed按钮
• 按比例放大Feed按钮，在屏幕转换过程中卡住该按钮

buttonPress和buttonRelease的动画方法：

- (void)buttonPress:(UIButton*)button{
    POPSpringAnimation *scaleAnimation = [POPSpringAnimation animationWithPropertyNamed:kPOPLayerScaleXY];
    scaleAnimation.toValue = [NSValue valueWithCGSize:CGSizeMake(1.5, 1.5)];
    scaleAnimation.springBounciness = 15.f;
    [button.layer pop_addAnimation:scaleAnimation forKey:@"scaleAnim"];
    button.highlighted = NO;
}


- (void)buttonRelease:(UIButton*)button {
    POPSpringAnimation *scaleAnimation = [POPSpringAnimation animationWithPropertyNamed:kPOPLayerScaleXY];
    scaleAnimation.toValue = [NSValue valueWithCGSize:CGSizeMake(1.0, 1.0)];
    scaleAnimation.springBounciness = 15.f;
    [button.layer pop_addAnimation:scaleAnimation forKey:@"scaleAnim"];
    button.highlighted = NO;
}

将动画附加到按钮的方法：

- (void)attachAnimationsToButton:(UIButton *)button
{
    [button addTarget:self action:@selector(buttonPress:) forControlEvents:UIControlEventTouchDown];
    [button addTarget:self action:@selector(buttonPress:) forControlEvents:UIControlEventTouchDragInside];
    [button addTarget:self action:@selector(buttonRelease:) forControlEvents:UIControlEventTouchUpInside];
    [button addTarget:self action:@selector(buttonRelease:) forControlEvents:UIControlEventTouchDragExit];
    [button addTarget:self action:@selector(buttonRelease:) forControlEvents:UIControlEventTouchUpOutside];
}

Feed按钮：

 self.feedButton = [[UIButton alloc] init];
 [self.feedButton setImage:[UIImage tag_feedButtonImage] forState:UIControlStateNormal];
 [self attachAnimationsToButton:self.feedButton];
 [self.feedButton addTarget:self action:@selector(showFeed) forControlEvents:UIControlEventTouchUpInside];
 [self addSubview:self.feedButton];

显示Feed方法：

- (void)showFeed
{   
    [self.navigationController pushViewController:[TAGTabBarController new] animated:NO];
}

提前感谢您的帮助！

-Josh