public async Task CloseModal(bool animation = false)
{
await Device.InvokeOnMainThreadAsync(async() =>
{
try
{
Debug.WriteLine($"CloseModal(animation={animation})");
Page page = null;
if (Device.RuntimePlatform == Device.Android)
{
page = await _navigation.Navigation.PopModalAsync(false);
}
else
{
page = await _navigation.Navigation.PopModalAsync(animation);
}
if (page != null)
{
var pageKey = _pagesByKey.First(p => p.Value == page.GetType()).Key;
Debug.WriteLine($"CloseModal():PageKey({pageKey})");
}
CurrentPage = _navigation.CurrentPage;
AppStateController.PopViewState();
}
catch (Exception ex)
{
Debug.WriteLine(ex);
}
});
}
public async Task PopToRootAsync()
{
await Device.InvokeOnMainThreadAsync(async() =>
{
try
{
Debug.WriteLine($"PopToRootAsync()");
while (_navigation.Navigation.ModalStack.Any())
{
await _navigation.Navigation.PopModalAsync(false);
}
await _navigation.Navigation.PopToRootAsync(false);
CurrentPage = _navigation.CurrentPage;
AppStateController.ClearNavigationMetaStack();
}
catch (Exception ex)
{
Debug.WriteLine(ex);
}
});
}
protected override async void OnStart()
{
var result = await DependencyService.Get <IPermissionService>()
.CheckPermissions(Permission.Storage);
if (!result.Any(x => x.Value == PermissionStatus.Granted))
{
return;
}
//await ClearTablesAsync();
await CreateTablesAsync();
var navigationService = SimpleIoc.Default.GetInstance <INavigationService>();
var navList = AppStateController.RestoreState();
AppStateController.ClearNavigationMetaStack();
foreach (var nav in navList)
{
switch (nav.CurrentPage)
{
case "MainPage":
await navigationService.ReplaceRoot(Locator.Home);
break;
default:
break;
}
}
base.OnStart();
}
protected override void OnResume()
{
try
{
AppStateController.ResetState();
}
catch (Exception ex)
{
Debug.WriteLine(ex);
}
}
private void SavePreviousPageState(string pageKey)
{
Debug.WriteLine($"SavePreviousPageState(pageKey={pageKey})");
if (string.IsNullOrEmpty(pageKey))
{
AppStateController.SaveViewState(((IContentPage)_navigation.CurrentPage)?.OnSleep());
}
else
{
var page = _navigation.Navigation.ModalStack.FirstOrDefault(x => x.GetType() == _pagesByKey[pageKey]);
AppStateController.SaveViewState(((IContentPage)page)?.OnSleep());
}
}
protected override void OnSleep()
{
try
{
if (((MasterDetailPage)Application.Current.MainPage).Detail is NavigationPage navigation)
{
AppStateController.SaveViewState(navigation.Navigation.ModalStack.Any()
? ((IContentPage)navigation.Navigation.ModalStack.Last()).OnSleep()
: ((IContentPage)navigation.Navigation.NavigationStack.Last()).OnSleep());
AppStateController.SaveFinalState();
}
}
catch (Exception ex)
{
Debug.WriteLine(ex);
}
}
