public static void NavigateForResult <TActivity, TParameters, TResult>(
[NotNull] this NavigationServiceBase navigationService,
[NotNull] IAndroidView <IViewModelWithResultHandler> fromView,
[CanBeNull] TParameters parameters,
[CanBeNull] ForwardNavigationDelegate navigationStrategy = null)
where TActivity : Activity, IActivityView <IViewModelWithParameters <TParameters> >, IActivityView <IViewModelWithResult <TResult> >
where TParameters : ViewModelParametersBase
where TResult : ViewModelResultBase
{
if (navigationService == null)
{
throw new ArgumentNullException(nameof(navigationService));
}
if (fromView == null)
{
throw new ArgumentNullException(nameof(fromView));
}
var activity = fromView.GetActivity();
var targetActivityType = typeof(TActivity);
var intent = new Intent(activity, targetActivityType);
intent.PutViewModelParameters(parameters);
var requestCode = RequestCode.Get <TResult>(activity, targetActivityType);
(navigationStrategy ?? NavigationStrategy.Forward.Default()).Invoke(fromView, requestCode, intent);
}
internal static IAndroidView <IViewModel> FindParentViewWithModel([NotNull] this IAndroidView view)
{
IAndroidView <IViewModel> parentView = null;
if (view is Android.Support.V4.App.Fragment appCompatFragment)
{
parentView = FindParentViewWithModel(appCompatFragment);
}
else if (view is Fragment fragment)
{
parentView = FindParentViewWithModel(fragment);
}
return(parentView);
}
private static IAndroidView <IViewModel> FindParentViewWithModel([NotNull] Fragment fragment)
{
IAndroidView <IViewModel> parentView = null;
var parentFragment = fragment.ParentFragment;
while (parentView == null && parentFragment != null)
{
parentView = parentFragment as IAndroidView <IViewModel>;
parentFragment = parentFragment.ParentFragment;
}
if (parentView == null)
{
parentView = fragment.Activity as IAndroidView <IViewModel>;
}
return(parentView);
}
public static void Navigate <TActivity>(
[NotNull] this NavigationServiceBase navigationService,
[NotNull] IAndroidView fromView,
[CanBeNull] ForwardNavigationDelegate navigationStrategy = null)
where TActivity : Activity, IActivityView <IViewModelWithoutParameters>
{
if (navigationService == null)
{
throw new ArgumentNullException(nameof(navigationService));
}
if (fromView == null)
{
throw new ArgumentNullException(nameof(fromView));
}
var activity = fromView.GetActivity();
var targetActivityType = typeof(TActivity);
var intent = new Intent(activity, targetActivityType);
(navigationStrategy ?? NavigationStrategy.Forward.Default()).Invoke(fromView, null, intent);
}
public static void Navigate(
[NotNull] this NavigationServiceBase navigationService,
[NotNull] IAndroidView fromView,
[NotNull] Type toViewType,
[CanBeNull] ForwardNavigationDelegate navigationStrategy = null)
{
if (navigationService == null)
{
throw new ArgumentNullException(nameof(navigationService));
}
if (fromView == null)
{
throw new ArgumentNullException(nameof(fromView));
}
if (toViewType == null)
{
throw new ArgumentNullException(nameof(toViewType));
}
var activity = fromView.GetActivity();
var intent = new Intent(activity, toViewType);
(navigationStrategy ?? NavigationStrategy.Forward.Default()).Invoke(fromView, null, intent);
}
public static Activity GetActivity([NotNull] this IAndroidView view)
{
if (view == null)
{
throw new System.ArgumentNullException(nameof(view));
}
Activity parentActivityOrSelf = null;
if (view is Activity activity)
{
parentActivityOrSelf = activity;
}
else if (view is Android.Support.V4.App.Fragment appCompatFragment)
{
parentActivityOrSelf = appCompatFragment.Activity;
}
else if (view is Fragment fragment)
{
parentActivityOrSelf = fragment.Activity;
}
return(parentActivityOrSelf);
}
