public MenuViewModel(
Func <Type, string, object, MenuItemViewModel> factory,
INavigationService navigationService,
IPlatformService platformService,
ISettingManager settingManager)
{
_navigationService = navigationService;
_platformService = platformService;
_settingManager = settingManager;
_factory = factory;
Items = new ReactiveList <MenuItemViewModel>();
Navigate = ReactiveCommand.Create(DoNavigate);
Load = ReactiveCommand.CreateFromTask(DoLoad);
_navigationService.Navigated
.Where(x => x != Selection?.Type)
.Select(x => Items.FirstOrDefault(i => i.Type == x))
.Subscribe(x => Selection = x);
}
private async Task DoLoad()
{
await _navigationService.Navigate <FeedViewModel>();
var settings = await _settingManager.Read();
settings.Fetched = DateTime.Now;
await _platformService.RegisterBackgroundTask(settings.Period);
await _platformService.RegisterTheme(settings.Theme);
await _settingManager.Write(settings);
_navigationService.Icons.ToList().ForEach(item =>
Items.Add(_factory(item.Key, item.Value.Item1, item.Value.Item2)
));
Selection = Items.FirstOrDefault();
}
public MenuViewModel(
Func <Type, string, object, MenuItemViewModel> factory,
INavigationService navigationService,
IPlatformService platformService,
ISettingManager settingManager)
{
Items = new ReactiveList <MenuItemViewModel>();
Navigate = ReactiveCommand.Create(() =>
{
if (Selection == null)
{
return;
}
typeof(INavigationService)
.GetMethod("Navigate", new Type[] {})
.MakeGenericMethod(Selection.Type)
.Invoke(navigationService, null);
});
Load = ReactiveCommand.CreateFromTask(async() =>
{
await navigationService.Navigate <FeedViewModel>();
var settings = await settingManager.Read();
settings.Fetched = DateTime.Now;
await platformService.RegisterBackgroundTask(settings.Period);
await platformService.RegisterTheme(settings.Theme);
await settingManager.Write(settings);
navigationService.Icons.ToList().ForEach(item => Items.Add(
factory(item.Key, item.Value.Item1, item.Value.Item2)));
Selection = Items.FirstOrDefault();
navigationService.Navigated
.Where(x => x != Selection?.Type)
.Select(x => Items.FirstOrDefault(i => i.Type == x))
.Subscribe(x => Selection = x);
});
}
