iOS 5 UISplitViewController 不调用 ShouldHideViewController

Question

我正在使用 MonoDevelop 3.0.3 和 Monotouch 5.2.12

为什么在 iOS 5.1 中从未调用“UISplitViewController”类中的“ShouldHideViewController”？

如果我不分配“ShouldHideViewController”和“将显示/隐藏”属性，左/主视图会正确显示，但我无法在主视图中隐藏/显示“BarButtonItem”(viewFees ).

以下是我的 Split View类代码:

using System;
using MonoTouch.UIKit;

namespace PlazaTimePad 
{
  public class FeesSplitViewController : UISplitViewController
  {
    CalendarMonthViewController viewCalendar;
    FeeListViewController viewFees;

    public FeesSplitViewController () : base()
    {
      this.TabBarItem.Title = "My Time"; 
      viewFees = new FeeListViewController ();
      viewCalendar = new CalendarMonthViewController (viewFees);

      ViewControllers = new UIViewController[] {viewCalendar, viewFees};

      WillHideViewController += (object sender, UISplitViewHideEventArgs e) => {
        viewFees.AddContentsButton (e.BarButtonItem);
      };

      WillShowViewController += (object sender, UISplitViewShowEventArgs e) => {
        viewFees.RemoveContentsButton ();
      };

      ShouldHideViewController += (svc, viewController, inOrientation) => {
        return inOrientation == UIInterfaceOrientation.Portrait || 
               inOrientation == UIInterfaceOrientation.PortraitUpsideDown;
      };
    }
  }
}

Answer 1

我认为您应该只覆盖 WillRotate 或 DidRotate 来实现您要执行的操作。

这是链接:

http://docs.go-mono.com/index.aspx?link=M%3AMonoTouch.UIKit.UIViewController.WillRotate(MonoTouch.UIKit.UIInterfaceOrientation%2CSystem.Double )

http://iosapi.xamarin.com/index.aspx?link=M%3AMonoTouch.UIKit.UIViewController.DidRotate(MonoTouch.UIKit.UIInterfaceOrientation )

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