xcode IOS：关闭两个viewController
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IOS: dismiss two viewController
提问by cyclingIsBetter
I have three viewController
我有三个 viewController
First, Second and Third
一、二、三
from Second to open Third I use
从第二个到打开第三个我用
Third *third = [[Third alloc]initWithNibName:@"Third" bundle:nil];
[self presentModalViewController:third animated:YES];
[third release];
Now I want return from third to first; then I set in viewDidAppear in second this code:
现在我想从第三回到第一；然后我在第二个代码中在 viewDidAppear 中设置：
[self dismissModalViewControllerAnimated:NO];
but for 1 second I see Second and I don't want watch it...how can I do?
但是有 1 秒钟我看到了 Second 并且我不想看它……我该怎么办？
回答by rakeshNS
You need to dismiss third view controller first and then second Viewcontroller. Do the following code when you want to go first view controller.
您需要先关闭第三个视图控制器，然后再关闭第二个视图控制器。当您想首先使用视图控制器时，请执行以下代码。
-(void)goToFirstView{
UIViewController *vc = [self parentViewController];
// UIViewController *vc = [self presentingViewController]; //ios 5 or later
[self dismissModalViewControllerAnimated:NO];
[vc dismissModalViewControllerAnimated:YES];
}
回答by GoZoner
How is the Third modal view being dismissed in the first place? Perhaps by the user touching a 'Done' button? If so, it is in the handler for the button that you want to dismiss both.
第三个模态视图是如何首先被驳回的？也许通过用户触摸“完成”按钮？如果是这样，则在您要关闭这两个按钮的处理程序中。
You can dismiss both as:
您可以将两者视为：
[self dismissModalViewControllerAnimated: YES];
[self.presentingViewController dismissModalViewControllerAnimated: NO];
回答by Ankit Srivastava
This happens coz viewDidAppear is called everytime before the view appears so as soon as it appears you dismiss it and it disappears..
发生这种情况是因为 viewDidAppear 每次在视图出现之前都会被调用，所以只要它出现，你就会关闭它并消失。
I don't think what u are trying to do can be achieved with modalViewControllers... instead use a navigationController and keep adding your viewcontrollers onto the stack and when you want to goto the First view controller just call
我不认为你想要做的事情可以用 modalViewControllers 来实现......而是使用 navigationController 并继续将你的视图控制器添加到堆栈中，当你想转到第一个视图控制器时，只需调用
[self.navigationController popToRootViewControllerAnimated:YES];
EDIT:
EDIT：
just thought of it this can be achieved by using delegation.. you make second the delegate of third and as soon you dismiss the thirdviecontroller send the delegate a message.In this message call [self dismissModalViewControllerAnimated:NO];..
and you are done.. (pretty easy if you know delegation.)
只是想到这可以通过使用委托来实现..你让第二个代表第三个，一旦你解除第三个控制器向代表发送一个消息。在这个消息调用中[self dismissModalViewControllerAnimated:NO];..你就完成了..（如果你很容易知道委托。）
