public override void Execute(CallbackActionWaiter callbackActionWaiter, bool animated)
{
UIViewController host = Controller.Host;
var vc = Controller.AsViewController();
callbackActionWaiter.WaitOne();
host.PresentViewController(vc, animated, callbackActionWaiter.ReleaseOne);
}
public override void Execute(CallbackActionWaiter callbackActionWaiter, bool animated)
{
if (HostStack.Modal is NavigationControllerInnerStack navigationControllerInnerStack)
{
callbackActionWaiter.WaitOne();
navigationControllerInnerStack.Host.DismissViewController(animated, callbackActionWaiter.ReleaseOne);
callbackActionWaiter.Add(() => navigationControllerInnerStack.Host.SafeDispose());
}
else if (HostStack.Modal is SimpleControllerInnerStack simpleControllerInnerStack)
{
callbackActionWaiter.WaitOne();
simpleControllerInnerStack.Controller.DismissViewController(animated, callbackActionWaiter.ReleaseOne);
callbackActionWaiter.Add(() => simpleControllerInnerStack.Controller.SafeDispose());
}
else
{
throw new NotSupportedException($"Unsupported type of {HostStack.Modal.GetType().Name}");
}
}
public async Task UpdateNavigation(NavigationOperation <TViewModel> navigationOperation, INavigationInProgress navigationInProgress)
{
if (navigationOperation.Pushes.Count == 0 && navigationOperation.Pops.Count == 0)
{
return;
}
var controllersToPush = navigationOperation.Pushes.Select(x => new PushInformation <TViewModel>(_factoryAssociation[x.Screen], x.Instance));
foreach (var push in navigationOperation.Pushes)
{
await push.Instance.GetViewModel(""); //TODO: add route here
}
if (navigationInProgress.IsCancelled)
{
Task.Run(async() =>
{
// we wait 10s just in case, shouldn't put too much memory pressure on GC
await Task.Delay(10_000);
foreach (var push in navigationOperation.Pushes)
{
push.Instance.ViewModelInstance?.SafeDispose();
}
}).ConfigureAwait(false);
return;
}
navigationInProgress.Commit();
UIApplication.SharedApplication.InvokeOnMainThread(() =>
{
var callbackActionWaiter = new CallbackActionWaiter();
callbackActionWaiter.WaitOne();
_navigationStack.EnsureInitialized(_navigationController);
_navigationStack.ApplyActions(navigationOperation.Pops.Count, controllersToPush, callbackActionWaiter);
// lines below could be commented if we encounter issues with viewmodel disposing
callbackActionWaiter.Add(() =>
{
foreach (PopAction <TViewModel> pop in navigationOperation.Pops)
{
pop.Instance.ViewModelInstance?.DispatchSafeDispose();
}
});
Task.Run(async() =>
{
// we wait 10s to let the time for navigation controller animations before disposing content
await Task.Delay(10_000);
UIApplication.SharedApplication.InvokeOnMainThread(callbackActionWaiter.ReleaseOne);
});
});
}
