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Introducing Apex

, 2 Aug 2011 CPOL
Introducing Apex - a lightweight MVVM and utility library for WPF, Silverlight, and WP7.
Apex.zip
Apex
Apex
Silverlight
Apex.Silverlight
MVVM
Properties
Samples
MVVMSample
Properties
WP7
Apex.WP7
MVVM
Properties
Samples
MVVMSample
ApplicationIcon.png
Background.png
Properties
SplashScreenImage.jpg
WPF
Apex
MVVM
Properties
Settings.settings
Samples
MVVMSample
Properties
Settings.settings
ApexSource.zip
Controls
ControlsSample
Properties
Controls
ControlsSample
ApplicationIcon.png
Background.png
Properties
SplashScreenImage.jpg
ApplicationIcon.png
Background.png
SplashScreenImage.jpg
Controls
Settings.settings
ControlsSample
Properties
Settings.settings
Settings.settings
Samples.zip
Samples
Silverlight
Apex.Silverlight.dll
MVVMSample.dll
MVVMSample.xap
WP7
Apex.WP7.dll
ApplicationIcon.png
Background.png
MVVMSample.dll
MVVMSample.xap
WPF
Apex.dll
MVVMSample.exe
using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Navigation;
using System.Windows.Shapes;
using Microsoft.Phone.Controls;
using Microsoft.Phone.Shell;

namespace MVVMSample
{
  public partial class App : Application
  {
    /// <summary>
    /// Provides easy access to the root frame of the Phone Application.
    /// </summary>
    /// <returns>The root frame of the Phone Application.</returns>
    public PhoneApplicationFrame RootFrame { get; private set; }

    /// <summary>
    /// Constructor for the Application object.
    /// </summary>
    public App()
    {
      // Global handler for uncaught exceptions. 
      UnhandledException += Application_UnhandledException;

      // Show graphics profiling information while debugging.
      if (System.Diagnostics.Debugger.IsAttached)
      {
        // Display the current frame rate counters.
        Application.Current.Host.Settings.EnableFrameRateCounter = true;

        // Show the areas of the app that are being redrawn in each frame.
        //Application.Current.Host.Settings.EnableRedrawRegions = true;

        // Enable non-production analysis visualization mode, 
        // which shows areas of a page that are being GPU accelerated with a colored overlay.
        //Application.Current.Host.Settings.EnableCacheVisualization = true;
      }

      // Standard Silverlight initialization
      InitializeComponent();

      // Phone-specific initialization
      InitializePhoneApplication();
    }

    // Code to execute when the application is launching (eg, from Start)
    // This code will not execute when the application is reactivated
    private void Application_Launching(object sender, LaunchingEventArgs e)
    {
    }

    // Code to execute when the application is activated (brought to foreground)
    // This code will not execute when the application is first launched
    private void Application_Activated(object sender, ActivatedEventArgs e)
    {
    }

    // Code to execute when the application is deactivated (sent to background)
    // This code will not execute when the application is closing
    private void Application_Deactivated(object sender, DeactivatedEventArgs e)
    {
    }

    // Code to execute when the application is closing (eg, user hit Back)
    // This code will not execute when the application is deactivated
    private void Application_Closing(object sender, ClosingEventArgs e)
    {
    }

    // Code to execute if a navigation fails
    private void RootFrame_NavigationFailed(object sender, NavigationFailedEventArgs e)
    {
      if (System.Diagnostics.Debugger.IsAttached)
      {
        // A navigation has failed; break into the debugger
        System.Diagnostics.Debugger.Break();
      }
    }

    // Code to execute on Unhandled Exceptions
    private void Application_UnhandledException(object sender, ApplicationUnhandledExceptionEventArgs e)
    {
      if (System.Diagnostics.Debugger.IsAttached)
      {
        // An unhandled exception has occurred; break into the debugger
        System.Diagnostics.Debugger.Break();
      }
    }

    #region Phone application initialization

    // Avoid double-initialization
    private bool phoneApplicationInitialized = false;

    // Do not add any additional code to this method
    private void InitializePhoneApplication()
    {
      if (phoneApplicationInitialized)
        return;

      // Create the frame but don't set it as RootVisual yet; this allows the splash
      // screen to remain active until the application is ready to render.
      RootFrame = new PhoneApplicationFrame();
      RootFrame.Navigated += CompleteInitializePhoneApplication;

      // Handle navigation failures
      RootFrame.NavigationFailed += RootFrame_NavigationFailed;

      // Ensure we don't initialize again
      phoneApplicationInitialized = true;
    }

    // Do not add any additional code to this method
    private void CompleteInitializePhoneApplication(object sender, NavigationEventArgs e)
    {
      // Set the root visual to allow the application to render
      if (RootVisual != RootFrame)
        RootVisual = RootFrame;

      // Remove this handler since it is no longer needed
      RootFrame.Navigated -= CompleteInitializePhoneApplication;
    }

    #endregion
  }
}

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This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

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About the Author

Dave Kerr
Software Developer
United Kingdom United Kingdom
Follow my blog at www.dwmkerr.com and find out about my charity at www.childrenshomesnepal.org.
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