使用'presentModalViewController'加载视图 [英] Using 'presentModalViewController' to load a view

问题描述

我正在尝试从另一个视图控制器加载临时的滑入式视图.我的应用程序的视图控制器的结构如下:

I am attempting to load a temporary, slide-in, view from another view controller. My application's view controllers are structured:

Application > Tab Bar Controller > TabBarItem > View Controller

在此视图控制器中，有一个按钮可以成功触发加载临时视图的方法:

In this view controller, I have a button that successfully fires a method to load the temporary view:

- (IBAction)displayTimePickerViewForDayButton:(id)sender {

    NSLog(@"displayTimePickerViewForDayButton method entered.");

    // create the selector view controller and become the delegate
    WOTimePickerViewController *tpvc = [[WOTimePickerViewController alloc] initWithNibName:@"WOTimePickerView" bundle:nil];
    tpvc.delegate = self;
    tpvc.modalTransitionStyle = UIModalTransitionStyleCoverVertical;

    [self presentModalViewController:tpvc animated:YES];
    [tpvc release];
}

我已经验证了我的WOTimePickerViewController是成功地从init方法返回的，但是视图从未输入它的viewDidLoad方法.

I have verified that my WOTimePickerViewController is successfully returning from the init method but the view never enters it's viewDidLoad method.

因此，如果我查看IB中的视图，它似乎已连接到vc的"view"属性.当我在模拟器中(从IB)运行视图时，它将正确呈现.

So, if I look at the view in IB, it appears to be connected to the vc's "view" property. When I run the view in the simulator (from IB) it renders correctly.

当我从XCODE运行该应用程序时，可以导航到该视图，单击我的按钮，然后出现空白的白色屏幕(请注意，这不是应该加载的视图的白色背景).

When I run the app from XCODE, I can navigate to the view, click my button, and a blank white screen appears (note this is not the white background of the view that should load).

推荐答案

您应该这样做..

WOTimePickerViewController *tpvc = [[WOTimePickerViewController alloc] initWithNibName:@"WOTimePickerView" bundle:nil];
    tpvc.delegate = self;
UINavigationController *navCntrlr = [[UINavigationController alloc] initWithRootViewController:tpvc];
    navCntrlr.modalTransitionStyle = UIModalTransitionStyleCoverVertical;

    [self.navigationController presentModalViewController:tpvc animated:YES];
    [tpvc release];

但是您缺少的重要一件事是您做得不好.

But the important thing you are missing is you are not doing it right.

您应该这样做:

[self.navigationController presentModalViewController:tpvc animated:YES];

，当您要关闭modalView控制器时，您应该这样做:

and when you want to dismiss the modalView controller you should do it like:

[self.navigationController dismissModalViewControllerAnimated:YES];

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