Question

我在MonoTouch和iOS6模拟器以及iOS6设备上使用UIDocumentInteractionController，我的代码一半正常工作。但是它对于iOS5模拟器/设备根本不起作用。这是我在示例项目中进行测试的示例类。

using System;
using MonoTouch.UIKit;
using MonoTouch.Foundation;

namespace DocumentThing
{
    public class MyViewController : UIViewController
    {
        UIDocumentInteractionController documentInteractionController1;
        UIDocumentInteractionController documentInteractionController2;
        UIBarButtonItem leftButton;
        UIBarButtonItem rightButton;

        public MyViewController()
        {

        }

        public override void ViewDidLoad()
        {
            View.BackgroundColor = UIColor.White;

            leftButton = new UIBarButtonItem(UIBarButtonSystemItem.Action, null, null);
            leftButton.Clicked += delegate(object sender, EventArgs e)
            {
                InvokeOnMainThread(delegate {
                    documentInteractionController1 = new UIDocumentInteractionController();
                    documentInteractionController1.Url = NSUrl.FromFilename(@"testpdf.pdf");
                    documentInteractionController1.PresentOpenInMenu(View.Frame, View, true);
                });
            };
            NavigationItem.LeftBarButtonItem = leftButton;


            rightButton = new UIBarButtonItem(UIBarButtonSystemItem.Action, null, null);
            rightButton.Clicked += delegate(object sender, EventArgs e)
            {
                InvokeOnMainThread(delegate {
                    documentInteractionController2 = new UIDocumentInteractionController();
                    documentInteractionController2.Url = NSUrl.FromFilename(@"testpdf.pdf");
                    documentInteractionController2.PresentOptionsMenu(View.Frame, View, true);
                });
            };
            NavigationItem.RightBarButtonItem = rightButton;
        }
    }
}

PresentOptionsMenu在iOS6上工作正常但在iOS5中没有，iOS5和iOS6上的PresentOptionInMenu都失败了。不确定这是否是iOS5 / 6 SDK /模拟器的错误，或者是否是MonoTouch中的错误。我不知道如何进一步调试这个问题...

建议？

Answer 1

回答我自己的问题......

您是否检查过您的设备上是否有打开PDF的东西？不要忘记默认情况下不安装iBooks，iOS不认为将Safari用作PDF阅读器。

UIDocumentInteractionController在iOS6中工作但在iOS5中不工作

1 个答案: