// *** Protected Methods ***
protected async void OnSuspending(object sender, ISuspendingEventArgs e)
{
ISuspendingDeferral deferal = GetDeferral(e);
await SuspendServicesAsync();
deferal.Complete();
}
// *** Protected Methods ***
protected async void OnSuspending(object sender, ISuspendingEventArgs e)
{
ISuspendingDeferral deferal = GetDeferral(e);
IEnumerable <Task> resumingTasks = registeredServices.Select(service => service.OnSuspending());
await Task.WhenAll(resumingTasks);
deferal.Complete();
}
// *** Protected Methods ***
protected async void OnSuspending(object sender, ISuspendingEventArgs e)
{
ISuspendingDeferral deferal = GetDeferral(e);
IEnumerable<Task> resumingTasks = registeredServices.Select(service => service.OnSuspending());
await Task.WhenAll(resumingTasks);
deferal.Complete();
}
/// <summary>
/// Runs a function while also getting a suspension deferral from the Windows Runtime.
/// </summary>
private static Func <Func <Task>, Task> RunWithDeferral(ISuspendingEventArgs e)
{
return(async function =>
{
ISuspendingDeferral deferral = e.SuspendingOperation.GetDeferral();
try
{
await function();
}
finally
{
deferral.Complete();
}
});
}
/// <summary>
/// Runs a function while also getting a suspension deferral from the Windows Runtime.
/// </summary>
private static Func<Func<Task>, Task> RunWithDeferral(ISuspendingEventArgs e)
{
return async function =>
{
ISuspendingDeferral deferral = e.SuspendingOperation.GetDeferral();
try
{
await function();
}
finally
{
deferral.Complete();
}
};
}
public async Task SuspendAsync(ISuspendingEventArgs e)
{
Navigation.Settings.LastSuspended = DateTime.Now;
if (Settings.EnableLifecycleStrategy)
{
PreviouslySuspended = true;
_messengerService.Send(new Messages.SuspendingMessage {
EventArgs = e
});
// TODO: what to do with multiple views?
foreach (var nav in NavigationService.Instances.Select(x => x as INavigationService2))
{
await nav.SaveAsync(true);
}
}
}
protected virtual ISuspendingDeferral GetDeferral(ISuspendingEventArgs e)
{
// NB: Use a virtual method rather than getting the deferral directly to aid testing
return e.SuspendingOperation.GetDeferral();
}
protected virtual ISuspendingDeferral GetDeferral(ISuspendingEventArgs e)
{
// NB: Use a virtual method rather than getting the deferral directly to aid testing
return(e.SuspendingOperation.GetDeferral());
}
protected override ISuspendingDeferral GetDeferral(ISuspendingEventArgs e)
{
return ((MockSuspendingEventArgs)e).GetDeferral();
}
} // Noncompliant
private async void OnSuspending(object sender, ISuspendingEventArgs e)
{
} // Compliant - ends with EventArgs and 1st param is object sender
private async void OnSuspending(object sender, ISuspendingEventArgs e)
{
}
async void MyOtherMethod1(object o, ISuspendingEventArgs args)
{
}
// *** Overriden base methods ***
protected override ISuspendingDeferral GetDeferral(ISuspendingEventArgs e)
{
return(((MockSuspendingEventArgs)e).GetDeferral());
}
// *** Methods ***
public void Suspend(ISuspendingEventArgs e)
{
base.OnSuspending(null, e);
}
async void MyOtherMethod1(object o, ISuspendingEventArgs args)
{
await Task.Run(() => Console.WriteLine("test"));
}
private async void OnSuspending(object sender, ISuspendingEventArgs e)
{
await Task.Run(() => Console.WriteLine("test"));
}
public void Suspend(ISuspendingEventArgs e)
{
base.OnSuspending(null, e);
}