private static async Task <bool> DetermineActivationKind()
{
bool isRedirect = false;
// Find out what kind of activation this is.
AppActivationArguments args = AppInstance.GetCurrent().GetActivatedEventArgs();
ExtendedActivationKind kind = args.Kind;
ReportInfo($"ActivationKind={kind}");
if (kind == ExtendedActivationKind.Launch)
{
// This is a launch activation: here we'll register for file activation.
ReportLaunchArgs("Main", args);
RegisterForFileActivation();
}
else if (kind == ExtendedActivationKind.File)
{
ReportFileArgs("Main", args);
try
{
// This is a file activation: here we'll get the file information,
// and register the file name as our instance key.
if (args.Data is IFileActivatedEventArgs fileArgs)
{
IStorageItem file = fileArgs.Files[0];
AppInstance keyInstance = AppInstance.FindOrRegisterForKey(file.Name);
ReportInfo($"Registered key = {keyInstance.Key}");
// If we successfully registered the file name, we must be the
// only instance running that was activated for this file.
if (keyInstance.IsCurrent)
{
// Report successful file name key registration.
ReportInfo($"IsCurrent=true; registered this instance for {file.Name}");
// Hook up the Activated event, to allow for this instance of the app
// getting reactivated as a result of multi-instance redirection.
keyInstance.Activated += OnActivated;
}
else
{
isRedirect = true;
await keyInstance.RedirectActivationToAsync(args);
}
}
}
catch (Exception ex)
{
ReportInfo($"Error getting instance information: {ex.Message}");
}
}
return(isRedirect);
}