SimpleOrientationSensor sample

This sample shows how to use the Windows.Devices.Sensors.SimpleOrientationSensor API.

 
 
 
 
 
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4/2/2014
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//
// SuspensionManager.h
// Declaration of the SuspensionManager class
//

#pragma once

namespace SDKSample
{
	/// <summary>
	/// SuspensionManager captures global session state to simplify process lifetime management
	/// for an application.  Note that session state will be automatically cleared under a variety
	/// of conditions and should only be used to store information that would be convenient to
	/// carry across sessions, but that should be disacarded when an application crashes or is
	/// upgraded.
	/// </summary>
	class SuspensionManager sealed
	{
	public:
		static void RegisterFrame(Windows::UI::Xaml::Controls::Frame^ frame, Platform::String^ sessionStateKey, Platform::String^ sessionBaseKey = nullptr);
		static void UnregisterFrame(Windows::UI::Xaml::Controls::Frame^ frame);
		static concurrency::task<void> SaveAsync();
		static concurrency::task<void> RestoreAsync(Platform::String^ sessionBaseKey = nullptr);
		static Windows::Foundation::Collections::IMap<Platform::String^, Platform::Object^>^ SessionState();
		static Windows::Foundation::Collections::IMap<Platform::String^, Platform::Object^>^ SessionStateForFrame(
			Windows::UI::Xaml::Controls::Frame^ frame);

	private:
		static void RestoreFrameNavigationState(Windows::UI::Xaml::Controls::Frame^ frame);
		static void SaveFrameNavigationState(Windows::UI::Xaml::Controls::Frame^ frame);

		static Platform::Collections::Map<Platform::String^, Platform::Object^>^ _sessionState;
		static const wchar_t* sessionStateFilename;

		static std::vector<Platform::WeakReference> _registeredFrames;
		static Windows::UI::Xaml::DependencyProperty^ FrameSessionStateKeyProperty;
		static Windows::UI::Xaml::DependencyProperty^ FrameSessionBaseKeyProperty;
		static Windows::UI::Xaml::DependencyProperty^ FrameSessionStateProperty;
	};
}