解雇一個視圖控制器並提出另一個viewController

Question

在我的應用程序中，我有4個UIViewcontrollers -A，B，C和D。

從我的UIViewController A可以顯示UIVIewControllers B或C或D。 假設，從A開始，我呈現了B。然后，在B上，有兩個UIButtons ，單擊它們，我需要關閉B和Present C或關閉B和PresentD。這是成功發生的，但首先是在關閉之后B，出現A的屏幕，然后轉到C或D。

這是我所做的：

在按鈕上按B，操作是：

{
    UINavigationController *controller = (UINavigationController *)self.parentViewController;
    NSLog(@"%@",[controller parentViewController]);
    UITabBarController *tabBarReference = (UITabBarController *)[controller parentViewController];

    HomePageViewController *presController = (HomePageViewController *)tabBarReference.presentingViewController;
    [presController dismissTabControllerWithHandlerWithSenderAtIndex:1];
}

在A中，我有以下方法：

-(void)dismissTabControllerWithHandlerWithSenderAtIndex:(NSInteger)index
{
    if(index == 0)
    {
        [self dismissViewControllerAnimated:NO completion:^{

            [self aboutButtonPressed:self];

        }];
    }

    else
    {
        [self dismissViewControllerAnimated:NO completion:^{

            [self settingsButtonPressed:self];

        }];
    }
}

這是我正在打電話的方法。

- (IBAction)settingsButtonPressed:(id)sender
{
    [self.contactUsView setHidden:YES];

    NSUserDefaults *prefs = [NSUserDefaults standardUserDefaults];
    NSString *deviceType = [prefs objectForKey:@"DeviceType"];
    NSString *iOSType = [prefs objectForKey:@"iOSType"];

    if([iOSType isEqualToString:@"iOS7"])
    {
        if([deviceType isEqualToString:@"iPad"])
        {
            SettingsViewController *settingsPage = [[SettingsViewController alloc] initWithNibName:@"SettingsViewController_iPad" bundle:NULL];
            settingsPage.modalTransitionStyle = UIModalTransitionStylePartialCurl;
            [self presentViewController:settingsPage animated:YES completion:NULL];
        }

        else
        {
            SettingsViewController *settingsPage = [[SettingsViewController alloc] initWithNibName:@"SettingsViewController" bundle:NULL];
            settingsPage.modalTransitionStyle = UIModalTransitionStylePartialCurl;
            [self presentViewController:settingsPage animated:YES completion:NULL];
        }
    }

    else
    {
        if([deviceType isEqualToString:@"iPad"])
        {
            SettingsViewController *settingsPage = [[SettingsViewController alloc] initWithNibName:@"SettingsViewController_iPad_iOS6" bundle:NULL];
            settingsPage.modalTransitionStyle = UIModalTransitionStylePartialCurl;
            [self presentViewController:settingsPage animated:YES completion:NULL];
        }

        else
        {
            SettingsViewController *settingsPage = [[SettingsViewController alloc] initWithNibName:@"SettingsViewController_iOS6" bundle:NULL];
            settingsPage.modalTransitionStyle = UIModalTransitionStylePartialCurl;
            [self presentViewController:settingsPage animated:YES completion:NULL];
        }
    }
}

Answer 1

好吧，去：-

假設viewcontroller A是基＆它presents任一view controllers B或C.

在必須關閉視圖控制器B或C的地方實現委托/通知。

發送委托或發布通知后，關閉view controller without animation, ie animation:NO的當前view controller without animation, ie animation:NO 。

需要在view controller A中聽到已發布的此通知。

在這里，您將展示下一個視圖控制器。

編輯：-

-(void)dismissTabControllerWithHandlerWithSenderAtIndex:(NSInteger)index
{
    if(index == 0)
    {
        [self dismissViewControllerAnimated:NO completion:nil];
        [self aboutButtonPressed:self];

    }

    else
    {

        [self dismissViewControllerAnimated:NO completion:nil];
        [self settingsButtonPressed:self];
    }
}