Question

我想添加带动画的子视图。我正在使用添加子视图，所以它没有显示任何动画所以我想在我这样做时显示任何动画...我使用下面的代码： -

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

任何人都可以建议我这样做吗？

Answer 1

这是代码..试试吧。

PS：将myView替换为您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];

Answer 2

也许您可以继承UIView并覆盖方法willMove(toSuperview newSuperview: UIView?)

以下是示例：

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
    }
}

在添加子视图时显示动画

2 个答案: