c# - 如何访问 UITableViewSource 下的 NavigationController.PushViewController？

Question

如何访问 UITableviewSource 类中的 NavigationController？

在行选择时，我想导航到另一个 UIController。

这是我的代码，

public class RootTableSource : UITableViewSource
{
    IList<VendorDetails> tableItems;
    string cellIdentifier = "UIViewController";

    ReportsList reportList;
    AddNewReport addnewReport;

    public RootTableSource()
    {
    }

    public RootTableSource (IEnumerable<VendorDetails> items)
    {
        tableItems = items.ToList (); 
    }

    public override void RowSelected (UITableView tableView, NSIndexPath indexPath)
    {
        tableView.DeselectRow (indexPath, true); 

        // Redirect to another UIController....
    }

    public VendorDetails GetItem (int id)
    {
        return tableItems [id];
    }
}

Answer 1

你有在 AppDelegate 中实例化 UINavigationController 吗？

像这样...

@property (strong, nonatomic) UINavigationController *navigationViewController;

那么你应该可以从 AppDelegate 委托(delegate)访问 UINavigationController

#import "AppDelegate.h"

@implementation yourClassName

-(void)functionName{

    AppDelegate *appdelegate = (AppDelegate*)[[UIApplication sharedApplication]delegate];

    appdelegate.navigationViewController;  //your UINavigationController

    [appdelegate.navigationViewController pushViewController:yourUIViewController animated:YES];

}

@end

希望得到帮助~

编辑:

抱歉，我以前从未使用过 Xamarin

所以我认为这是一种糟糕的实现方式...

但看起来可行

AppDelegates.cs

[Register ("AppDelegate")]
public partial class AppDelegate : UIApplicationDelegate
{

    UIWindow window;
    HomeScreen home;
    public static UINavigationController navigation;
    //set navigation public and static      

    public override bool FinishedLaunching (UIApplication app, NSDictionary options)
    {
        window = new UIWindow (UIScreen.MainScreen.Bounds);
        home = new HomeScreen ();
        navigation = new UINavigationController(home);
        window.RootViewController =  navigation;
        window.MakeKeyAndVisible ();
        return true;
    }
}

yourClassName.cs

AppDelegate.navigation
//access navigation 

希望再次得到帮助...