This content has 4 years. Some of the information in this post may be out of date or no longer work. Please, read this page keeping its age in your mind.If you have experienced that reopening your application from the phone’s app drawer or launcher is fails because it crashes your application, or displays the first set main page again instead of displaying the latest one, keep reading this article. If you have crashes, or malfunctions, you are probably initializing something in the constructor of the App.xaml.cs, or in the overridden method called ‘OnStart’ like this: Imaginary InitalizeOnlyOnceClass’s Initialize method can be called only once, for the second call, it throws an exception. After you have started your program, sent to background, and bringing it back throws the second Initalization’s exception. This is because the App class gets constructed again when reopening application from the drawer. To handle this, you should make a boolean for the application’s initialization progress. If you receive a blank white screen, you are probably forget to set the Main Page Make sure, that the Application.Current.MainPage always gets a value. If you have implemented the Initialization by your self, or an another way, make sure you have handled correctly the else statement also.Even if the application has been initialized once, the Application.Current.MainPage have to be set always when reconstructing the App. Continue with the last page opened in the application If you want to continue always with the last page opened, you need to store the…