Animation 添加子视图时显示动画

我想添加带有动画的子视图。我正在使用添加子视图，所以它不显示任何动画，所以我想在执行此操作时显示任何动画。。。我正在使用以下代码：-

UIViewController *vControllerHome = [[viewTemp alloc] initWithNibName:@"viewTemp" bundle:nil];
vControllerHome.view.frame =CGRectMake(0, 0, 320, 414);
[self.view addSubview:vControllerHome.view];
self.selectedViewController = vControllerHome;

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有人能建议我怎么做吗？

这是代码。。试试看

PS:Replace

myView

为要替换的视图的名称。

CATransition *applicationLoadViewIn =[CATransition animation];
[applicationLoadViewIn setDuration:duration];
[applicationLoadViewIn setType:kCATransitionReveal];
[applicationLoadViewIn setTimingFunction:[CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseIn]];
[[myView layer]addAnimation:applicationLoadViewIn forKey:kCATransitionReveal];

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下面是动画块的示例

[UIView transitionWithView:containerView 
                  duration:0.5 
               options:UIViewAnimationTransitionFlipFromRight //any animation
            animations:^ { [containerView addSubview:subview]; }
            completion:nil];

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也许您可以对UIView进行子类化，并重写方法

willMove（tosuperviewnewsuperview:UIView？

下面是一个例子：

override public func willMove(toSuperview newSuperview: UIView?) {
    super.willMove(toSuperview: newSuperview)

    if let _ = newSuperview {
        // This view will be added to some view
        UIView.animate(withDuration: 0.2, delay: 0.0, usingSpringWithDamping: 0.6, initialSpringVelocity: 30.0, options: .curveEaseInOut, animations: {
            //...
        }, completion: { (finish) in

        })
    } else {
        // This view will be removed
    }
}

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要删除子视图，请使用相同的代码，但替换[containerView addSubview:subview]；使用[self.view removeFromSuperview]；