private static void OnLifetimeEvent(this IMvxAndroidView androidView,
Action <IMvxAndroidActivityLifetimeListener, Activity> report)
{
var activityTracker = Mvx.IoCProvider.Resolve <IMvxAndroidActivityLifetimeListener>();
report(activityTracker, androidView.ToActivity());
}
private static ValueTask EnsureSetupInitialized(this IMvxAndroidView androidView)
{
var activity = androidView.ToActivity();
var setup = MvxAndroidSetupSingleton.EnsureSingletonAvailable(activity.ApplicationContext);
return(setup.EnsureInitialized());
}
public static void OnViewDestroy(this IMvxAndroidView androidView)
{
androidView.OnLifetimeEvent((listener, activity) => listener.OnDestroy(activity));
var view = androidView as IMvxView;
view.OnViewDestroy();
}
private static void OnLifetimeEvent <TViewModel>(this IMvxAndroidView <TViewModel> androidView, Action <IMvxAndroidActivityLifetimeListener, Activity> report)
where TViewModel : class, IMvxViewModel
{
var activityTracker = androidView.GetService <IMvxAndroidActivityLifetimeListener>();
report(activityTracker, androidView.ToActivity());
}
public static void OnViewDestroy <TViewModel>(this IMvxAndroidView <TViewModel> androidView)
where TViewModel : class, IMvxViewModel
{
androidView.OnLifetimeEvent((listener, activity) => listener.OnDestroy(activity));
var view = androidView as IMvxView <TViewModel>;
view.OnViewDestroy();
}
public static Intent CreateIntentFor<TTargetViewModel>(this IMvxAndroidView view,
IDictionary<string, string> parameterValues = null)
where TTargetViewModel : class, IMvxViewModel
{
var parameterBundle = new MvxBundle(parameterValues);
var request = new MvxViewModelRequest<TTargetViewModel>(parameterBundle, null);
return view.CreateIntentFor(request);
}
public static void OnViewCreate <TViewModel>(this IMvxAndroidView <TViewModel> androidView)
where TViewModel : class, IMvxViewModel
{
androidView.EnsureSetupInitialized();
androidView.OnLifetimeEvent((listener, activity) => listener.OnCreate(activity));
var view = androidView as IMvxView <TViewModel>;
view.OnViewCreate(() => { return(androidView.LoadViewModel()); });
}
public static Activity ToActivity(this IMvxAndroidView androidView)
{
var activity = androidView as Activity;
if (activity == null)
{
throw new MvxException("OnViewCreate called from an IMvxView which is not an Android Activity");
}
return(activity);
}
public static async ValueTask OnViewCreate(this IMvxAndroidView androidView, Bundle bundle)
{
androidView.OnLifetimeEvent((listener, activity) => listener.OnCreate(activity, bundle));
var cache = Mvx.IoCProvider.Resolve <IMvxSingleViewModelCache>();
var cached = cache.GetAndClear(bundle);
var view = (IMvxView)androidView;
var savedState = GetSavedStateFromBundle(bundle);
await view.OnViewCreate(async() => cached ?? await androidView.LoadViewModel(savedState).ConfigureAwait(false)).ConfigureAwait(false);
}
private static void EnsureSetupInitialized(this IMvxAndroidView androidView)
{
if (androidView is IMvxAndroidSplashScreenActivity)
{
// splash screen views manage their own setup initialization
return;
}
var activity = androidView.ToActivity();
var setup = MvxAndroidSetupSingleton.GetOrCreateSetup(activity.ApplicationContext);
setup.EnsureInitialized(androidView.GetType());
}
private static void EnsureSetupInitialized(this IMvxAndroidView androidView)
{
if (androidView is IMvxSetupMonitor)
{
// setup monitor views manage their own setup initialization
return;
}
var activity = androidView.ToActivity();
var setup = MvxAndroidSetupSingleton.EnsureSingletonAvailable(activity.ApplicationContext);
setup.EnsureInitialized();
}
public static void OnViewCreate(this IMvxAndroidView androidView, Bundle bundle)
{
androidView.EnsureSetupInitialized();
androidView.OnLifetimeEvent((listener, activity) => listener.OnCreate(activity, bundle));
var cache = Mvx.IoCProvider.Resolve <IMvxSingleViewModelCache>();
var cached = cache.GetAndClear(bundle);
var view = (IMvxView)androidView;
var savedState = GetSavedStateFromBundle(bundle);
view.OnViewCreate(() => cached ?? androidView.LoadViewModel(savedState));
}
public static void OnViewNewIntent(this IMvxAndroidView androidView)
{
throw new MvxException("Sorry - we don't currently support OnNewIntent in MvvmCross-Android");
/*
* androidView.EnsureSetupInitialized();
* androidView.OnLifetimeEvent((listener, activity) => listener.OnViewNewIntent(activity));
*
* var view = androidView as IMvxView;
* MvxTrace.Warning(
* "OnViewNewIntent isn't well understood or tested inside MvvmCross - it's not really a cross-platform concept.");
* view.OnViewNewIntent(() => { return androidView.LoadViewModel(null); });
*/
}
public static void OnViewDestroy(this IMvxAndroidView androidView)
{
androidView.OnLifetimeEvent((listener, activity) => listener.OnDestroy(activity));
var view = androidView as IMvxView;
view.OnViewDestroy();
var currentActivity = Mvx.IoCProvider.Resolve <IMvxAndroidCurrentTopActivity>()?.Activity;
if (currentActivity == null && view is Activity destroyedActivity && destroyedActivity.IsFinishing && Mvx.IoCProvider.TryResolve <IMvxAppStart>(out var appStart))
{
appStart?.ResetStart();
}
}
private static TViewModel LoadViewModel <TViewModel>(this IMvxAndroidView <TViewModel> androidView)
where TViewModel : class, IMvxViewModel
{
var activity = androidView.ToActivity();
if (typeof(TViewModel) == typeof(MvxNullViewModel))
{
return(new MvxNullViewModel() as TViewModel);
}
var translatorService = androidView.GetService <IMvxAndroidViewModelLoader>();
var viewModel = translatorService.Load(activity.Intent);
return((TViewModel)viewModel);
}
private static async ValueTask <IMvxViewModel?> LoadViewModel(this IMvxAndroidView androidView, IMvxBundle?savedState)
{
var activity = androidView.ToActivity();
var viewModelType = androidView.FindAssociatedViewModelTypeOrNull();
if (viewModelType == typeof(MvxNullViewModel))
{
return(new MvxNullViewModel());
}
if (viewModelType == null ||
viewModelType == typeof(IMvxViewModel))
{
MvxLog.Instance.Trace("No ViewModel class specified for {0} in LoadViewModel",
androidView.GetType().Name);
}
var translatorService = Mvx.IoCProvider.Resolve <IMvxAndroidViewModelLoader>();
return(await translatorService.Load(activity.Intent, savedState, viewModelType).ConfigureAwait(false));
}
private static IMvxViewModel LoadViewModel(this IMvxAndroidView androidView, IMvxBundle savedState)
{
var activity = androidView.ToActivity();
var viewModelType = androidView.FindAssociatedViewModelTypeOrNull();
if (viewModelType == typeof(MvxNullViewModel))
{
return(new MvxNullViewModel());
}
if (viewModelType == null ||
viewModelType == typeof(IMvxViewModel))
{
MvxLog.Instance.Trace("No ViewModel class specified for {0} in LoadViewModel",
androidView.GetType().Name);
}
var translatorService = Mvx.Resolve <IMvxAndroidViewModelLoader>();
var viewModel = translatorService.Load(activity.Intent, savedState, viewModelType);
return(viewModel);
}
public static void OnViewNewIntent(this IMvxAndroidView androidView)
{
MvxLog.Instance.Trace("OnViewNewIntent called - MvvmCross lifecycle won't run automatically in this case.");
}
public static void OnViewNewIntent(this IMvxAndroidView androidView)
{
#warning Should this be an exception here as we do not respond to the new intent message
Mvx.Warning("OnViewNewIntent called - but this is not fully handled within MvvmCross currently. Check https://github.com/slodge/MvvmCross/pull/294 for more info");
//throw new MvxException("Sorry - we don't currently support OnNewIntent in MvvmCross-Android");
}
public static void OnViewPause <TViewModel>(this IMvxAndroidView <TViewModel> androidView)
where TViewModel : class, IMvxViewModel
{
androidView.OnLifetimeEvent((listener, activity) => listener.OnPause(activity));
}
public static Intent CreateIntentFor(this IMvxAndroidView view, MvxViewModelRequest request)
{
return(Mvx.Resolve <IMvxAndroidViewModelRequestTranslator>().GetIntentFor(request));
}
public static Intent CreateIntentFor <TTargetViewModel>(this IMvxAndroidView view, object parameterObject)
where TTargetViewModel : class, IMvxViewModel
{
return(view.CreateIntentFor <TTargetViewModel>(parameterObject.ToSimplePropertyDictionary()));
}
public static void OnViewStop(this IMvxAndroidView androidView)
{
androidView.OnLifetimeEvent((listener, activity) => listener.OnStop(activity));
}
public static void OnViewNewIntent(this IMvxAndroidView androidView)
{
MvxLogHost.Default?.Log(LogLevel.Trace, "OnViewNewIntent called - MvvmCross lifecycle won't run automatically in this case.");
}
