問題使用CATransitions切換視圖

Question

所以我嘗試使用此代碼視圖之間切換：

CATransition *applicationLoadViewIn = [CATransition animation]; 

    [applicationLoadViewIn setDuration:1]; 

    [applicationLoadViewIn setType:kCATransitionReveal]; 

    [applicationLoadViewIn setTimingFunction:[CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseIn]]; 

    MyViewControllerClass *theControllerIAmSwitchingTo = [[MyViewControllerClass alloc] init]; 

    [[theControllerIAmSwitchingTo.view layer] addAnimation:applicationLoadViewIn forKey:kCATransitionReveal]; 

但是，該代碼不起作用。沒有錯誤，並且代碼執行得很好，但它沒有做任何事情。我在這裏有什麼錯誤？

Answer 1

您需要將動畫添加到父視圖層，然後將該視圖添加爲父視圖的子視圖。

所以不是

[[theControllerIAmSwitchingTo.view layer] addAnimation:applicationLoadViewIn forKey:kCATransitionReveal]; 

您需要使用

[parentView.layer addAnimation:animation forKey:kCATransitionReveal]; 
[parentView addSubview:theControllerIAmSwitchingTo.view]; 

Answer 2

只是不喜歡它：

CATransition *applicationLoadViewIn = [CATransition animation]; 

    [applicationLoadViewIn setDuration:1]; 

    [applicationLoadViewIn setType:kCATransitionReveal]; 

    [applicationLoadViewIn setTimingFunction:[CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseIn]]; 

    MyViewControllerClass *theControllerIAmSwitchingTo = [[MyViewControllerClass alloc] init]; 

    [[theControllerIAmSwitchingTo.view layer] addAnimation:applicationLoadViewIn forKey:kCATransitionReveal]; 

    [self.navigationController pushViewController:theControllerIAmSwitchingTo animated:NO]; 

我注意到的問題是，您不添加您的視圖您的導航堆棧，這就是爲什麼你的視圖不會被加載，你看不到動畫。