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“Application windows are expected to have a root view controller at the end of application launch” error only on iPad

由 烂漫一生 提交于 2019-11-27 13:35:55
I am trying to convert my iPhone only application to a Universal application. I switched the devices to Universal and let Xcode do it's thing making a MainWindow-iPad.xib for me, and now when I run the app in the iPhone simulator it works fine, but when I run it in the iPad simulator I get a white screen and the Application windows are expected to have a root view controller at the end of application launch error. I have read some other posts about this same problem but none of them are just limited to one device. Here is my application:didFinishLaunchWithOptions: method: - (BOOL)application:

How to make my WPF MainWindow a singleton?

由 旧巷老猫 提交于 2019-11-27 04:27:06
问题 I want to make my MainWindow a singleton because I want to make accessing it from all other windows in my app easier. But I couldn't make it run. Here is what I did. As usual, I made the MainWindow contractor private, and created a public static MainWindow Instance property to return a static instance. When I just run it without any other changes, I got "No Source Available" error. I googled the Internet and found one related topic at http://www.netframeworkdev.com/windows-presentation

Windows Forms: Change application mainwindow at runtime

由 拈花ヽ惹草 提交于 2019-11-26 17:19:17
问题 Normally I would do Application.Run(myMainForm). But I want to do something like this: MyForm1 f = new MyForm1(); f.Close+=OnOpenOverviewWin(); Application.Run(f); void OnOpenOverviewWin() { MyOverViewForm f = new MyOverViewForm (); Application.Run(f); // i want to do this Application.NewMainWindow = f; // or something like that } 回答1: Set the Application.ShutdownMode property to ShutdownMode.OnLastWindowClose MyForm1 f = new MyForm1(); f.Close += OnOpenOverviewWin(); Application.ShutdownMode

“Application windows are expected to have a root view controller at the end of application launch” error only on iPad

由 不打扰是莪最后的温柔 提交于 2019-11-26 16:25:04
问题 I am trying to convert my iPhone only application to a Universal application. I switched the devices to Universal and let Xcode do it's thing making a MainWindow-iPad.xib for me, and now when I run the app in the iPhone simulator it works fine, but when I run it in the iPad simulator I get a white screen and the Application windows are expected to have a root view controller at the end of application launch error. I have read some other posts about this same problem but none of them are just
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