“Win10 UAP 开发系列”之主题模式切换

/// <summary>

/// 当前主题

/// </summary>

public ElementTheme CurrentTheme

{

get { return _CurrentThemeLocator( this ).Value; }

set

{

_CurrentThemeLocator( this ).SetValueAndTryNotify( value );

}

}

#region Property ElementTheme CurrentTheme Setup

protected Property < ElementTheme > _CurrentTheme = new Property < ElementTheme > { LocatorFunc = _CurrentThemeLocator };

static Func < BindableBase , ValueContainer < ElementTheme >> _CurrentThemeLocator = RegisterContainerLocator< ElementTheme >( "CurrentTheme" , model => model.Initialize( "CurrentTheme" , ref model._CurrentTheme, ref _CurrentThemeLocator, _CurrentThemeDefaultValueFactory));

static Func < ElementTheme > _CurrentThemeDefaultValueFactory = () => { return ElementTheme .Default; };

#endregion

/// <summary>

/// 切换日间夜间模式

/// </summary>

public CommandModel < ReactiveCommand , String > CommandSetCustomTheme

{

get { return _CommandSetCustomThemeLocator( this ).Value; }

set { _CommandSetCustomThemeLocator( this ).SetValueAndTryNotify( value ); }

}

#region Property CommandModel<ReactiveCommand, String> CommandSetCustomTheme Setup

protected Property < CommandModel < ReactiveCommand , String >> _CommandSetCustomTheme = new Property < CommandModel < ReactiveCommand , String >> { LocatorFunc = _CommandSetCustomThemeLocator };

static Func < BindableBase , ValueContainer < CommandModel < ReactiveCommand , String >>> _CommandSetCustomThemeLocator = RegisterContainerLocator< CommandModel < ReactiveCommand , String >>( "CommandSetCustomTheme" , model => model.Initialize( "CommandSetCustomTheme" , ref model._CommandSetCustomTheme, ref _CommandSetCustomThemeLocator, _CommandSetCustomThemeDefaultValueFactory));

static Func < BindableBase , CommandModel < ReactiveCommand , String >> _CommandSetCustomThemeDefaultValueFactory =

model =>

{

var resource = "SetCustomTheme" ; // Command resource

var commandId = "SetCustomTheme" ;

var vm = CastToCurrentType(model);

var cmd = new ReactiveCommand (canExecute: true ) { ViewModel = model }; //New Command Core

cmd

.DoExecuteUIBusyTask(

vm,

async e =>

{

//Todo: Add SetCustomTheme logic here, or

await MVVMSidekick.Utilities. TaskExHelper .Yield();

if (vm.CurrentTheme == ElementTheme .Dark || vm.CurrentTheme == ElementTheme .Default)

{

vm.CurrentTheme = ElementTheme .Light;

}

else

{

vm.CurrentTheme = ElementTheme .Dark;

}

}

)

.DoNotifyDefaultEventRouter(vm, commandId)

.Subscribe()

.DisposeWith(vm);

var cmdmdl = cmd.CreateCommandModel(resource);

cmdmdl.ListenToIsUIBusy(model: vm, canExecuteWhenBusy: false );

return cmdmdl;

};

#endregion