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DotNet Cologne 2015 - Windows 10 AppDev, Teil2: Coole APIs - (Daniel Meixner)
The document provides detailed information on app-to-app communication protocols within the Windows ecosystem, emphasizing custom URI schemes and app services for launching and interacting with applications. It outlines methods for querying app capabilities, sending data, and managing app service connections, including debugging practices and best practices for wrapping services in an SDK. Additionally, it covers the use of system triggers to optimize background tasks based on specific events.
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DotNet Cologne 2015 - Windows 10 AppDev, Teil2: Coole APIs - (Daniel Meixner)
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- 4. http://windows.Microsoft.com Today - Share Contract -File Picker - Launch URI
- 5. http://windows.Microsoft.com Launcher.LaunchUriAsync(new Uri(“myapp:?Oh=yes“)); How DoI Link to an App? http://aka.ms/launchwindowsapp
- 6. http://windows.Microsoft.com Custom schemes workon all platforms. Spotify:// launches the Spotify app everywhere Custom Schemes
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- 8. http://windows.Microsoft.com Launcher.LaunchUriAsync (new Uri(“myapp:?Oh=no“)); Evil TwinProblem User/OS chooses target
- 9. http://windows.Microsoft.com Launch specific var options= new LauncherOptions(); options.TargetApplicationPackageFamilyName= “12Me.MyApp"; Launcher.LaunchUriAsync(new Uri(“myapp:?Oh=yes"), options);
- 10. http://windows.Microsoft.com Get the PFN privatestring GetPackageFamilyName() { return Windows.ApplicationModel.Package.Current.Id.FamilyName; }
- 11. var options =new LauncherOptions(); options.TargetApplicationPackageFamilyName= “12Me.MyApp"; string thumbnailToken = SharedStorageAccessManager.AddFile (gpxFile); var launchUri = new Uri(“myapp:?Oh=yes&file=" + thumbnailToken); await Launcher.LaunchUriAsync(launchUri, options, inputData); Launcher.LaunchUriAsync(new Uri(“myapp:?Oh=yes"), options);
- 12. //Query for acustom scheme (myapp) var queryUri = new Uri(“myapp:"); await Launcher.QueryUriSupportAsync(queryUri, LaunchQuerySupportType.Uri); //Query for a custom scheme supported by a specific app var queryUri = new Uri(“myapp:"); string packageFamilyName = " 12Me.MyApp "; await Launcher.QueryUriSupportAsync(queryUri, LaunchQuerySupportType.Uri, packageFamilyName);
- 13. //Find all appsthat support custom scheme myapp: var customSchemeProviders = await Launcher.FindUriSchemeHandlersAsync(“myapp"); //Find all apps that can launch a file of type .foo var fileTypeHandlers = await Launcher.FindFileTypeHandlersAsync(“.foo");
- 14. //Find all appsthat support custom scheme myapp: var customSchemeProviders = await Launcher.FindUriSchemeHandlersAsync(“myapp"); //Find all apps that can launch a file of type .foo var fileTypeHandlers = await Launcher.FindFileTypeHandlersAsync(“.foo");
- 15. var resultData =new ValueSet(); resultData.Add("Result", value); operation.ProtocolForResultsOperation.ReportCompleted(resultData); App A App B var options = new LauncherOptions(); options.TargetApplicationPackageFamilyName= “12Me.MyApp"; Launcher.LaunchUriForResultsAsync(new Uri(“myapp-forresults:?Oh=yes"), options);
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- 17. App Services toApp Communication
- 19. Client App A Packagewith App Service App Service Background Task var conn = new AppServiceConnection(); conn.AppServiceName = “FooAppService”; conn.PackageFamilyName = “12Me.MyApp“; var status = await conn.OpenAsync();
- 20. Package with AppService Client App A App Service Background Task var conn = new AppServiceConnection(); conn.AppServiceName = “FooAppService”; conn.PackageFamilyName = “12Me.MyApp“; var status = await conn.OpenAsync(); var message = new ValueSet(); message.Add(“Hi”, “There”); var r = await conn.SendMessageAsync(message); conn.Dispose();
- 21. Client App A ClientApp B Package with App Service App Service Background Task App Service Background Task App Service Connection App Service Connection
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- 24. Band App Provide App service ClientApp A Client App B
- 25. Product Scanner Checkout App InventoryApp Inventory Service Payment Gateway
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- 27. http://windows.Microsoft.com Enhanced App toApp in Windows 10 Send file token, send data Launch a *specific* app App Services Launch for Results Shared App Folder
- 28. http://windows.Microsoft.com 1. Set breakpointsin app service code 2. Check ‘Do not launch but debug my code when it starts’ in project properties 3. Launch app service foreground app in debugger – nothing happens! 4. Run client app to connect to app service 5. Debugger attaches and breaks on your breakpoint Debugging an App Service
- 29. http://windows.Microsoft.com Service is activatedon-demand Client may terminate service by disposing its AppServiceConnection If the invoking app is suspended, app services sponsored by the app will be terminated Insufficient resources may cause launch failure or service termination App Service Lifetime
- 30. http://windows.Microsoft.com Wrap your customscheme or app service in an SDK Use NuGet to distribute SDK Use REST-style versioning. For breaking changes, expose a new endpoint Best Practices
- 31. http://windows.Microsoft.com Windows.System.Launcher Link to aspecific app Pass arbitrary data Send files Launch apps for results Windows.ApplicationModel.AppServices Provide services to other apps Consume services provided by other apps App to App Summary
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- 38. http://windows.Microsoft.com Trigger based BackgroundTasks Apps subscribe to triggers they are interested in Only run *when* trigger is fired • Push notification • Geofencing • BLE device • Timer • Sensors
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