public ApplicationContext()
{
//is null in design time mode
if (PhoneApplicationService.Current != null)
{
PhoneApplicationService.Current.Launching += Current_Launching;
PhoneApplicationService.Current.Activated += Current_Activated;
PhoneApplicationService.Current.Deactivated += Current_Deactivated;
PhoneApplicationService.Current.Closing += Current_Closing;
}
//create required objects
_dataAcquirer = new DataSource();
ControllerClient = new PhoneControllerClient(_dataAcquirer);
Settings = new Settings();
}
void Current_Launching(object sender, LaunchingEventArgs e)
{
//set the property value so the app can offer convenient features for the user
if (IsolatedStorageSettings.ApplicationSettings.Contains(LastServerAddressKey))
{
LastServerAddress =
IPAddress.Parse(IsolatedStorageSettings.ApplicationSettings[LastServerAddressKey].ToString());
}
//restore settings
if (IsolatedStorageSettings.ApplicationSettings.Contains(ApplicationSettingsKey))
{
try
{
Settings = (Settings)IsolatedStorageSettings.ApplicationSettings[ApplicationSettingsKey];
}
catch (Exception)
{
_logger.Trace("Restore of application settings from isolated storage failed.");
Settings = new Settings();
}
}
}
void Current_Activated(object sender, ActivatedEventArgs e)
{
_logger.Trace("Application activating");
try
{
//try to restore some values
if (IsolatedStorageSettings.ApplicationSettings.Contains(LastServerAddressKey))
{
LastServerAddress =
IPAddress.Parse(IsolatedStorageSettings.ApplicationSettings[LastServerAddressKey].ToString());
}
if (IsolatedStorageSettings.ApplicationSettings.Contains(ControllerConfigurationKey))
{
var configuration =
(ControllerConfiguration)
IsolatedStorageSettings.ApplicationSettings[ControllerConfigurationKey];
ControllerClient.Configure(configuration);
}
}
catch (Exception ex)
{
_logger.Trace("Reading isolated storage communication settings failed: {0}", ex);
}
//only restore application settings if we were tombstoned
if (!e.IsApplicationInstancePreserved)
{
if (IsolatedStorageSettings.ApplicationSettings.Contains(ApplicationSettingsKey))
{
try
{
Settings = (Settings)IsolatedStorageSettings.ApplicationSettings[ApplicationSettingsKey];
//restore options service
OptionsService.Current.RestoreAfterTombstoning(Settings);
}
catch (Exception)
{
_logger.Trace("Restore of application settings from isolated storage failed.");
Settings = new Settings();
}
}
}
}