UIButton單擊使應用程序崩潰

Question

當我單擊按鈕時，我在page 1上有按鈕，我正在執行一些動畫和導航到新頁面，例如Page 2 。

在page 2有一個“取消”按鈕，當我單擊該按鈕時，我想回到我的上一頁，即Page 1但是在單擊“取消”按鈕時，我的應用程序崩潰了。

這是我在Page 1: 頁上的示例代碼Page 1: 頁面CRViewController的名稱

- (IBAction)ClickMe:(id)sender {
    RegistraionViewController *secondController = [[RegistraionViewController alloc] init];

    CATransition *transitionAnimation = [CATransition animation];
    [transitionAnimation setDuration:1];
    [transitionAnimation setType:@"push"];
    [transitionAnimation setSubtype:kCATransitionFromBottom];
    [transitionAnimation setTimingFunction:[CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionDefault]];

    [self.view.layer addAnimation:transitionAnimation forKey:kCATransitionFromBottom];
    [self.view addSubview:secondController.view];
}

Page 2:上的代碼Page 2: 頁面RegistraionViewController的名稱 （單擊時崩潰）。

- (IBAction)Click:(id)sender {
    CRViewController *secondController = [[CRViewController alloc] init];

    CATransition *transitionAnimation = [CATransition animation];
    [transitionAnimation setDuration:1];
    [transitionAnimation setType:@"push"];
    [transitionAnimation setSubtype:kCATransitionFromTop];
    [transitionAnimation setTimingFunction:[CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionDefault]];

    [self.view.layer addAnimation:transitionAnimation forKey:kCATransitionFromBottom];
    [self.view addSubview:secondController.view];
}

Answer 1

嘗試這個：

- (IBAction)ClickMe:(id)sender {   
    RegistraionViewController *secondController = [[RegistraionViewController alloc] init];   
    [self.navigationController pushViewController:secondController animated:YES];   
}


- (IBAction) Click:(id)sender {    
   [self.navigationController popViewControllerAnimated:YES];    
}

編輯：
對不起。 如果要自定義一些UIViewController過渡動畫，請參見以下內容：
UIViewController過渡-Objective-C
http://www.teehanlax.com/blog/custom-uiviewcontroller-transitions/
或者，您可以嘗試以下操作：

- (IBAction)ClickMe:(id)sender {
    RegistraionViewController *secondController = [[RegistraionViewController alloc] init];

    CATransition *transitionAnimation = [CATransition animation];
    [transitionAnimation setDuration:1];
    [transitionAnimation setType:@"push"];
    [transitionAnimation setSubtype:kCATransitionFromBottom];
    [transitionAnimation setTimingFunction:[CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionDefault]];

    [self.navigationController.view.layer addAnimation:transitionAnimation forKey:nil];
    [self.navigationController pushViewController:secondController animated:NO]; 
}

- (IBAction)Click:(id)sender {
    CRViewController *secondController = [[CRViewController alloc] init];

    CATransition *transitionAnimation = [CATransition animation];
    [transitionAnimation setDuration:1];
    [transitionAnimation setType:@"push"];
    [transitionAnimation setSubtype:kCATransitionFromTop];
    [transitionAnimation setTimingFunction:[CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionDefault]];

    [self.navigationController.view.layer addAnimation:transitionAnimation forKey:nil];
    [self.navigationController popToViewController:secondController animated:NO];
}

Answer 2

由於子視圖，您的問題出在某處。 我已經嘗試過您的代碼。

我在項目中做了以下代碼，並希望動畫能對您有所幫助。

CATransition *animation = [CATransition animation];
    [animation setDelegate:self];
    [animation setTimingFunction:[CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionLinear]];
    [animation setDuration:0.8];
    [animation setType:kCATransitionFade];
    [animation setSubtype:kCATransitionMoveIn];

    //[[self.view layer]addAnimation:animation forKey:@"fview"];

    [self.navigationController.view.layer addAnimation:animation forKey:nil];

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

在動畫類型中，您可以提供所需的任何動畫。

希望對您有幫助。

Answer 3

*

- (IBAction)ClickMe:(id)sender {
    RegistraionViewController *secondController = [[RegistraionViewController alloc] init];
    CATransition *transitionAnimation = [CATransition animation];
    [transitionAnimation setDuration:1];
    [transitionAnimation setType:@"push"];
    [transitionAnimation setSubtype:kCATransitionFromBottom];
    [transitionAnimation setTimingFunction:[CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionDefault]];
    [self.view.layer addAnimation:transitionAnimation forKey:kCATransitionFromBottom];
    [self addChildViewController:secondController];
    [self.view addSubview:secondController.view];
}

*用上面的代碼替換第1頁上的示例代碼，然后檢查。

希望這對您有幫助