How to create navigation in a Xamarin.iOS app?

时光怂恿深爱的人放手 提交于 2020-02-25 09:44:07

问题


I'm used to working with Xamarin.Forms. I create a Page in XAML or C# and navigate to it. But now it's my first time trying to create an iOS app that's not Xamarin.Forms. I'm doing it from Visual Studio on a Windows PC (connected to a Mac, of course). I've figured out that the ViewController is something like a Xamarin.Forms Page. But how do I create another page and tell the app to navigate to it? Do I create another UIViewController? And if so, how do I tell one to navigate to another?

All I've found are tutorials that use other IDEs. How do I do it in Visual Studio not "for Mac"?

Also, it seems that one way (the only way?) is to use something called a storyboard. However, in VS when clicking on a storyboard in solution explorer it starts "connecting to mac" (which it's already connected to) and there's a progress bar that just goes on and on. It never loads. So if there's a different way without a storyboard, that would be better.


回答1:


But how do I create another page and tell the app to navigate to it? Do I create another UIViewController? And if so, how do I tell one to navigate to another?

You can create it as follow :

Right click Xamarin IOS Project - > Add - > New Item - > User Interface (UIViewController Class / ViewController With StoryBorad )

All I've found are tutorials that use other IDEs. How do I do it in Visual Studio not "for Mac"?

Here is the official document about Walkthrough on Windows however about using storyboard .And there is a sample project below it.

So if there's a different way without a storyboard, that would be better.

If ViewController not exist in StoryBoard, then you can navigate to this Controller without StoryBoard .

this.PresentViewController(new UIViewControllerSecond(), true, null);

Else if StoryBoard contain the other ViewControllers , you also can use C# to navigate to next View.

SecondController secondController = this.Storyboard.InstantiateViewController("SecondController ") as SecondController ;
if (secondController != null)
{
    this.PushViewController(secondController , true);
}  

By the way , if Setting Root View Controller as NavigationController , use this.NavigationController.PushViewController(...) to navigate.



来源:https://stackoverflow.com/questions/58087254/how-to-create-navigation-in-a-xamarin-ios-app

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