示例#1
0
        /// <summary>
        /// Invoked when the application is launched normally by the end user.  Other entry points
        /// will be used such as when the application is launched to open a specific file.
        /// </summary>
        /// <param name="e">Details about the launch request and process.</param>
        protected override void OnLaunched(LaunchActivatedEventArgs e)
        {
            SqliteDatabase.CreateTables();
            // TODO: Enable Notifications
            InitNotificationsAsync();
//#if DEBUG
//            if (System.Diagnostics.Debugger.IsAttached)
//            {
//                this.DebugSettings.EnableFrameRateCounter = true;
//            }
//#endif

            Frame rootFrame = Window.Current.Content as Frame;

            // Do not repeat app initialization when the Window already has content,
            // just ensure that the window is active
            if (rootFrame == null)
            {
                // Create a Frame to act as the navigation context and navigate to the first page
                rootFrame = new Frame();

                rootFrame.NavigationFailed += OnNavigationFailed;
                rootFrame.Navigated        += OnNavigated;

                if (e.PreviousExecutionState == ApplicationExecutionState.Terminated)
                {
                    //TODO: Load state from previously suspended application
                }

                // Place the frame in the current Window
                Window.Current.Content = rootFrame;

                // Register a handler for BackRequested events and set the
                // visibility of the Back button
                SystemNavigationManager.GetForCurrentView().BackRequested += OnBackRequested;

                SystemNavigationManager.GetForCurrentView().AppViewBackButtonVisibility =
                    rootFrame.CanGoBack ?
                    AppViewBackButtonVisibility.Visible :
                    AppViewBackButtonVisibility.Collapsed;
            }


            if (rootFrame.Content == null)
            {
                // When the navigation stack isn't restored navigate to the first page,
                // configuring the new page by passing required information as a navigation
                // parameter
                rootFrame.Navigate(typeof(MainPage), e.Arguments);
            }
            // Ensure the current window is active
            Window.Current.Activate();
        }