public virtual async Task <TResult> Navigate <TViewModel, TResult>(IMvxBundle presentationBundle = null, CancellationToken cancellationToken = default(CancellationToken))
where TViewModel : IMvxViewModelResult <TResult>
where TResult : class
{
var viewModel = (IMvxViewModelResult <TResult>)LoadViewModel <TViewModel>();
var request = new MvxViewModelInstanceRequest(viewModel)
{
PresentationValues = presentationBundle?.SafeGetData()
};
var args = new NavigateEventArgs(viewModel);
OnBeforeNavigate(this, args);
var tcs = new TaskCompletionSource <TResult>();
viewModel.SetClose(tcs, cancellationToken);
ViewDispatcher.ShowViewModel(request);
await viewModel.Initialize();
OnAfterNavigate(this, args);
try
{
return(await tcs.Task);
}
catch
{
return(default(TResult));
}
}
public virtual async Task <TResult> Navigate <TParameter, TResult>(IMvxViewModel <TParameter, TResult> viewModel, TParameter param, IMvxBundle presentationBundle = null)
where TParameter : class
where TResult : class
{
RunViewModelLifecycle(viewModel);
var request = new MvxViewModelInstanceRequest(viewModel)
{
PresentationValues = presentationBundle?.SafeGetData()
};
var args = new NavigateEventArgs(viewModel);
OnBeforeNavigate(this, args);
var tcs = new TaskCompletionSource <TResult>();
viewModel.SetClose(tcs);
ViewDispatcher.ShowViewModel(request);
await viewModel.Initialize(param);
OnAfterNavigate(this, args);
try
{
return(await tcs.Task);
}
catch
{
return(default(TResult));
}
}
protected virtual async Task Navigate <TParameter>(Type viewModelType, TParameter param) where TParameter : notnull
{
var request = new MvxViewModelInstanceRequest(viewModelType);
request.ViewModelInstance = _viewModelLoader.LoadViewModel(request, param, null);
await Navigate(request, request.ViewModelInstance).ConfigureAwait(false);
}
protected virtual async Task Navigate(Type viewModelType)
{
var request = new MvxViewModelInstanceRequest(viewModelType);
request.ViewModelInstance = _viewModelLoader.LoadViewModel(request, null);
await Navigate(request, request.ViewModelInstance).ConfigureAwait(false);
}
public async Task <TResult> Navigate <TViewModel, TResult>()
where TViewModel : IMvxViewModelResult <TResult>
where TResult : class
{
var args = new NavigateEventArgs(typeof(TViewModel));
OnBeforeNavigate(this, args);
var viewModel = (IMvxViewModelResult <TResult>)Mvx.IocConstruct <TViewModel>();
var request = new MvxViewModelInstanceRequest(viewModel);
var tcs = new TaskCompletionSource <TResult>();
viewModel.SetClose(tcs);
_viewDispatcher.ShowViewModel(request);
OnAfterNavigate(this, args);
try
{
return(await tcs.Task);
}
catch
{
return(default(TResult));
}
}
public virtual IMvxIosView CreateView(IMvxViewModel viewModel)
{
var request = new MvxViewModelInstanceRequest(viewModel);
var view = CreateView(request);
return(view);
}
protected async Task <MvxViewModelInstanceRequest> NavigationRouteRequest <TParameter>(
string path, TParameter param, IMvxBundle?presentationBundle = null)
where TParameter : notnull
{
ValidateArguments(path, param);
if (!TryGetRoute(path, out var entry))
{
throw new MvxException($"Navigation route request could not be obtained for path: {path}");
}
var regex = entry.Key;
var match = regex.Match(path);
var paramDict = BuildParamDictionary(regex, match);
var parameterValues = new MvxBundle(paramDict);
var viewModelType = entry.Value;
var request = new MvxViewModelInstanceRequest(viewModelType)
{
PresentationValues = presentationBundle?.SafeGetData(),
ParameterValues = parameterValues.SafeGetData()
};
if (viewModelType.GetInterfaces().Contains(typeof(IMvxNavigationFacade)))
{
var facade = (IMvxNavigationFacade)_iocProvider.IoCConstruct(viewModelType);
try
{
var facadeRequest = await facade.BuildViewModelRequest(path, paramDict).ConfigureAwait(false);
if (facadeRequest == null)
{
throw new MvxException($"{nameof(MvxNavigationService)}: Facade did not return a valid {nameof(MvxViewModelRequest)}.");
}
request.ViewModelType = facadeRequest.ViewModelType;
if (facadeRequest.ParameterValues != null)
{
request.ParameterValues = facadeRequest.ParameterValues;
}
request.ViewModelInstance = ViewModelLoader.LoadViewModel(request, param, null);
}
catch (Exception ex)
{
ex.MvxWrap($"{nameof(MvxNavigationService)}: Exception thrown while processing URL: {path} with RoutingFacade: {viewModelType}");
}
}
else
{
request.ViewModelInstance = ViewModelLoader.LoadViewModel(request, param, null);
}
return(request);
}
public virtual async Task Navigate <TParameter>(IMvxViewModel <TParameter> viewModel, TParameter param, IMvxBundle presentationBundle = null) where TParameter : class
{
var request = new MvxViewModelInstanceRequest(viewModel)
{
PresentationValues = presentationBundle?.SafeGetData()
};
await Navigate <TParameter, object>(request, viewModel, param, presentationBundle);
}
public virtual async Task Navigate(IMvxViewModel viewModel, IMvxBundle presentationBundle = null)
{
var request = new MvxViewModelInstanceRequest(viewModel)
{
PresentationValues = presentationBundle?.SafeGetData()
};
await Navigate <object, object>(request, viewModel, null, presentationBundle);
}
public virtual async Task <TResult> Navigate <TResult>(IMvxViewModelResult <TResult> viewModel, IMvxBundle presentationBundle = null, CancellationToken cancellationToken = default(CancellationToken)) where TResult : class
{
var request = new MvxViewModelInstanceRequest(viewModel)
{
PresentationValues = presentationBundle?.SafeGetData()
};
return(await Navigate <object, TResult>(request, viewModel, null, presentationBundle, cancellationToken));
}
public virtual async Task Navigate <TViewModel>(IMvxBundle presentationBundle = null) where TViewModel : IMvxViewModel
{
var viewModel = LoadViewModel <TViewModel>();
var request = new MvxViewModelInstanceRequest(viewModel)
{
PresentationValues = presentationBundle?.SafeGetData()
};
await Navigate <object, object>(request, viewModel, null, presentationBundle);
}
public MvxBasePresentationAttribute PresentationAttribute(MvxViewModelRequest request)
{
MvxViewModelInstanceRequest instanceRequest = request as MvxViewModelInstanceRequest;
WindowViewModel viewModel = instanceRequest?.ViewModelInstance as WindowViewModel;
return(new MvxWindowPresentationAttribute
{
Identifier = $"{nameof(WindowView)}.{viewModel}"
});
}
public virtual async Task <TResult> Navigate <TResult>(Type viewModel, IMvxBundle presentationBundle = null, CancellationToken cancellationToken = default)
where TResult : notnull
{
var request = new MvxViewModelInstanceRequest(viewModel)
{
PresentationValues = presentationBundle?.SafeGetData()
};
request.ViewModelInstance = _viewModelLoader.LoadViewModel(request, presentationBundle, null);
return(await Navigate <TResult>(request, (IMvxViewModelResult <TResult>) request.ViewModelInstance, cancellationToken).ConfigureAwait(false));
}
public MvxBasePresentationAttribute PresentationAttribute(MvxViewModelRequest request)
{
MvxViewModelInstanceRequest instanceRequest = request as MvxViewModelInstanceRequest;
WatchdogViewModel viewModel = instanceRequest?.ViewModelInstance as WatchdogViewModel;
return(new MvxContentPresentationAttribute
{
WindowIdentifier = $"{nameof(RootView)}.{viewModel?.ParentNo}",
StackNavigation = false
});
}
private async Task <IMvxViewModel> NavigateRoute(string path)
{
KeyValuePair <Regex, Type> entry;
if (!TryGetRoute(path, out entry))
{
return(null);
}
var regex = entry.Key;
var match = regex.Match(path);
var paramDict = BuildParamDictionary(regex, match);
var viewModelType = entry.Value;
MvxViewModelRequest request = null;
IMvxViewModel viewModel;
if (viewModelType.GetInterfaces().Contains(typeof(IMvxNavigationFacade)))
{
var facade = (IMvxNavigationFacade)Mvx.IocConstruct(viewModelType);
try
{
var facadeRequest = await facade.BuildViewModelRequest(path, paramDict);
viewModel = (IMvxViewModel)Mvx.IocConstruct(facadeRequest.ViewModelType);
if (facadeRequest == null)
{
Mvx.TaggedWarning("MvxNavigationService", "Facade did not return a valid MvxViewModelRequest.");
return(null);
}
}
catch (Exception ex)
{
Mvx.TaggedError("MvxNavigationService",
"Exception thrown while processing URL: {0} with RoutingFacade: {1}, {2}",
path, viewModelType, ex);
return(null);
}
}
else
{
viewModel = (IMvxViewModel)Mvx.IocConstruct(viewModelType);
}
request = new MvxViewModelInstanceRequest(viewModel)
{
ParameterValues = new MvxBundle(paramDict).SafeGetData()
};
_viewDispatcher.ShowViewModel(request);
return(viewModel);
}
public virtual async Task <TResult> Navigate <TViewModel, TParameter, TResult>(TParameter param, IMvxBundle presentationBundle = null, CancellationToken cancellationToken = default(CancellationToken))
where TViewModel : IMvxViewModel <TParameter, TResult>
where TParameter : class
where TResult : class
{
var viewModel = (IMvxViewModel <TParameter, TResult>)LoadViewModel <TViewModel>();
var request = new MvxViewModelInstanceRequest(viewModel)
{
PresentationValues = presentationBundle?.SafeGetData()
};
return(await Navigate <TParameter, TResult>(request, viewModel, param, presentationBundle, cancellationToken));
}
private void RestoreFragmentsInfoState(Bundle bundle)
{
if (bundle == null)
{
return;
}
var fragmentInfoParcelables = bundle.GetParcelableArray(_bundleFragmentsInfoKey);
if (fragmentInfoParcelables == null)
{
return;
}
// First, we create a list of the ViewPager fragments that were restored by Android.
var fragments = GetFragmentsFromBundle(bundle);
// Now we get the FragmentInfo data for each fragment from the bundle.
int i = 0;
foreach (ViewPagerFragmentInfoParcelable parcelable in fragmentInfoParcelables)
{
MvxViewPagerFragmentInfo fragInfo = null;
if (i < fragments.Count)
{
var f = fragments[i];
if (f is IMvxFragmentView fragment && fragment.ViewModel != null)
{
// The fragment was already restored by Android with its old ViewModel (cached by MvvmCross).
// Add the ViewModel to the FragmentInfo object so the adapter won't instantiate a new one.
var viewModelInstanceRequest = new MvxViewModelInstanceRequest(fragment.ViewModel);
fragInfo = new MvxViewPagerFragmentInfo(parcelable.Title, parcelable.Tag, parcelable.FragmentType, viewModelInstanceRequest);
}
}
if (fragInfo == null)
{
// Either the fragment doesn't exist or it doesn't have a ViewModel.
// Fall back to a FragmentInfo with the ViewModelType. The adapter will create a ViewModel in GetItem where we will add it to the FragmentInfo.
var viewModelRequest = new MvxViewModelRequest(parcelable.ViewModelType);
fragInfo = new MvxViewPagerFragmentInfo(parcelable.Title, parcelable.Tag, parcelable.FragmentType, viewModelRequest);
}
FragmentsInfo.Add(fragInfo);
i++;
}
NotifyDataSetChanged();
}
/// <summary>
/// 在程序的Application的OnStartup方法中使用
/// </summary>
/// <param name="mvxViewPresenter">呈现控制器</param>
/// <param name="mvxSetup">启动流程控制器</param>
/// <param name="mvxApplication">ViewModelCore当中的</param>
/// <param name="mvxAppStart">程序启动控制</param>
/// <param name="viewAssemblies">视图程序集</param>
/// <param name="viewModelAssemblies">ViewModel程序集</param>
/// <param name="serviceAssemblies">提供服务工具的程序集，更具服务工具的接口注册为单例（服务的名称必须以Service结尾）</param>
public static void Init <TMainWindow, TViewModel>(MvxWpfViewPresenter mvxViewPresenter = null,
IMvxWpfSetup mvxSetup = null, IMvxApplication mvxApplication = null, IMvxAppStart mvxAppStart = null, Assembly[] viewAssemblies = null,
Assembly[] viewModelAssemblies = null, Assembly[] serviceAssemblies = null) where TMainWindow : Window where TViewModel : MvxViewModel
{
var mainWindow = Activator.CreateInstance <TMainWindow>();
if (mvxViewPresenter == null)
{
mvxViewPresenter = new MvxWpfViewPresenter(mainWindow);
}
if (mvxSetup == null)
{
mvxSetup = new BaseSetup <TMainWindow, TViewModel>(viewAssemblies, viewModelAssemblies);
}
mvxSetup.PlatformInitialize(Application.Current.Dispatcher, mvxViewPresenter);
mvxSetup.InitializePrimary();
mvxSetup.InitializeSecondary();
if (serviceAssemblies != null)
{
foreach (var serviceAssembly in serviceAssemblies)
{
serviceAssembly.CreatableTypes()
.EndingWith("Service")
.AsInterfaces()
.RegisterAsLazySingleton();
}
}
var start = Mvx.IoCProvider.Resolve <IMvxAppStart>();
//如果是默认的启动页，则不调用启动方法
if (!(start is BaseAppStart <TViewModel>))
{
start.Start();
}
else
{
var request = new MvxViewModelInstanceRequest(typeof(TViewModel));
var viewModel = Mvx.IoCProvider.GetSingleton <IMvxViewModelLoader>().LoadViewModel(request, null);
mainWindow.DataContext = viewModel;
}
mainWindow.Show();
}
public virtual async Task Navigate <TParameter>(IMvxViewModel <TParameter> viewModel, TParameter param, IMvxBundle presentationBundle = null) where TParameter : class
{
RunViewModelLifecycle(viewModel);
var request = new MvxViewModelInstanceRequest(viewModel)
{
PresentationValues = presentationBundle?.SafeGetData()
};
var args = new NavigateEventArgs(viewModel);
OnBeforeNavigate(this, args);
ViewDispatcher.ShowViewModel(request);
await viewModel.Initialize(param);
OnAfterNavigate(this, args);
}
public virtual async Task Navigate <TViewModel>(IMvxBundle presentationBundle = null) where TViewModel : IMvxViewModel
{
var viewModel = LoadViewModel <TViewModel>();
var request = new MvxViewModelInstanceRequest(viewModel)
{
PresentationValues = presentationBundle?.SafeGetData()
};
var args = new NavigateEventArgs(viewModel);
OnBeforeNavigate(this, args);
ViewDispatcher.ShowViewModel(request);
await viewModel.Initialize();
OnAfterNavigate(this, args);
}
public async Task Navigate <TViewModel, TParameter>(TParameter param)
where TViewModel : IMvxViewModel <TParameter>
where TParameter : class
{
var args = new NavigateEventArgs(typeof(TViewModel));
OnBeforeNavigate(this, args);
var viewModel = (IMvxViewModel <TParameter>)Mvx.IocConstruct <TViewModel>();
var request = new MvxViewModelInstanceRequest(viewModel);
_viewDispatcher.ShowViewModel(request);
await viewModel.Initialize(param);
OnAfterNavigate(this, args);
}
public override void ViewDidLoad()
{
Request = new MvxViewModelInstanceRequest(Mvx.IocConstruct <FirstViewModel>());
base.ViewDidLoad();
ViewModel.GetCats();
// Use a copy of the MvvmCross collection view source so we can debug in project.
var source = new MvxCollectionViewSourceCopy(CollectionView, new NSString("collectionCellId"));
CollectionView.Source = source;
(CollectionView.CollectionViewLayout as UICollectionViewFlowLayout).ItemSize = new CGSize(View.Frame.Width / 2, (View.Frame.Width / 2) + 25f);
// Create binding set
var set = this.CreateBindingSet <FirstView, FirstViewModel>();
set.Bind(source).For(x => x.ItemsSource).To(vm => vm.Cats);
set.Apply();
}
public override Fragment GetItem(int position, Fragment.SavedState fragmentSavedState = null)
{
var fragment = base.GetItem(position, fragmentSavedState);
// If the MvxViewPagerFragmentInfo for this position doesn't have the ViewModel, overwrite it with a new MvxViewPagerFragmentInfo that has the ViewModel we just created.
// Not doing this means the ViewModel gets recreated every time the Fragment gets recreated!
if (FragmentsInfo != null && FragmentsInfo.Count > position && fragment is IMvxFragmentView mvxFragment && mvxFragment.ViewModel != null)
{
var oldFragInfo = FragmentsInfo[position];
if (oldFragInfo != null && !(oldFragInfo.Request is MvxViewModelInstanceRequest))
{
var viewModelInstanceRequest = new MvxViewModelInstanceRequest(mvxFragment.ViewModel);
var newFragInfo = new MvxViewPagerFragmentInfo(oldFragInfo.Title, oldFragInfo.Tag, oldFragInfo.FragmentType, viewModelInstanceRequest);
FragmentsInfo[position] = newFragInfo;
}
}
return(fragment);
}
public MiniPlayerView()
{
InitializeComponent();
if (!(ViewModel is MiniPlayerViewModel))
{
if (Mvx.IoCProvider.TryResolve <MiniPlayerViewModel>(out var miniPlayerViewModel))
{
ViewModel = miniPlayerViewModel;
return;
}
var _viewModelLoader = Mvx.IoCProvider.Resolve <IMvxViewModelLoader>();
var request = new MvxViewModelInstanceRequest(typeof(MiniPlayerViewModel));
request.ViewModelInstance = _viewModelLoader.LoadViewModel(request, null);
ViewModel = request.ViewModelInstance as MiniPlayerViewModel;
Mvx.IoCProvider.RegisterSingleton <MiniPlayerViewModel>(ViewModel);
}
}
/// <summary>
/// Initializes a new instance of the <see cref="MenuView" /> class.
/// </summary>
public MenuView()
{
this.InitializeComponent();
// when viewmodel already created
if (Mvx.IoCProvider.TryResolve <Notenverwaltung.WPF.UI.ViewModels.MenuViewModel>(out var someViewModel))
{
ViewModel = someViewModel;
return;
}
// creating viewmodel
var _viewModelLoader = Mvx.IoCProvider.Resolve <IMvxViewModelLoader>();
var request = new MvxViewModelInstanceRequest(typeof(Notenverwaltung.WPF.UI.ViewModels.MenuViewModel));
request.ViewModelInstance = _viewModelLoader.LoadViewModel(request, null);
ViewModel = request.ViewModelInstance as Notenverwaltung.WPF.UI.ViewModels.MenuViewModel;
Mvx.IoCProvider.RegisterSingleton <Notenverwaltung.WPF.UI.ViewModels.MenuViewModel>(ViewModel);
}
public Task <MvxViewModelRequest> BuildViewModelRequest(string url, IDictionary <string, string> currentParameters)
{
if (url == "http://www.rseg.net/rewards")
{
return(Task.FromResult(new MvxViewModelRequest(typeof(RewardsViewModel), new MvxBundle(), null)));
}
else if (url.StartsWith("http://www.rseg.net/rewards/"))
{
// logic to create a ViewModelRequest and pass parameters as MvxBundle
// causing Init() method on ViewModel to be called.
//var parametersBundle = new MvxBundle();
//var id = url.Substring(url.LastIndexOf('/') + 1);
//parametersBundle.Data.Add("id", id);
//var request = new MvxViewModelRequest(typeof(RewardDetailViewModel), parametersBundle, null);
//return Task.FromResult(new MvxViewModelRequest(typeof(RewardDetailViewModel), parametersBundle, null));
// logic to create a ViewModelInstanceRequest and pass parameters object
// causing Prepare() method on ViewModel to be called. For this to work
// you must provide a custom NavigationService and change NavigationRouteRequest()
// to inspect the object returned from this method and if it is a
// ViewModelInstanceRequest then use it as is rather than creating
// another one.
var request = new MvxViewModelInstanceRequest(typeof(RewardDetailViewModel));
var parameters = new RewardDetailViewModel.Parameteres();
var idString = url.Substring(url.LastIndexOf('/') + 1);
int id;
int.TryParse(idString, out id);
parameters.RewardId = id;
request.ViewModelInstance = ViewModelLoader.LoadViewModel(request, parameters, null);
return(Task.FromResult((MvxViewModelRequest)request));
}
else
{
return(Task.FromResult(new MvxViewModelRequest(typeof(FirstViewModel), new MvxBundle(), null)));
}
}