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IReactContext

The IReactContext is given to native modules to communicate with other native modules, views, application, and the ReactNative instance.

It has the same lifetime as the React instance. When the React instance is reloaded or unloaded, the IReactContext is destroyed.

• Use the Properties to share native module's data with other components.
• Use the Notifications to exchange events with other components.
• Use CallJSFunction to call JavaScript functions, and EmitJSEvent to raise JavaScript events.

Reference

Methods

DispatchEvent()

void DispatchEvent(XAML_NAMESPACE.FrameworkElement view, String eventName, JSValueArgWriter eventDataArgWriter);

Deprecated: Use DispatchEvent on XamlUIService instead

CallJSFunction()

void CallJSFunction(String moduleName, String methodName, JSValueArgWriter paramsArgWriter);

Call JavaScript function methodName of moduleName.

EmitJSEvent()

void EmitJSEvent(String eventEmitterName, String eventName, JSValueArgWriter paramsArgWriter);

Call JavaScript module event. It is a specialized CallJSFunction call where method name is always 'emit'.

Properties

Properties

IReactPropertyBag Properties { get; }

Properties shared with the IReactInstanceSettings.Properties. It can be used to share values and state between components.

Notifications

IReactNotificationService Notifications { get; }

Notifications shared with the IReactInstanceSettings.Notifications. They can be used to exchange events between components. All subscriptions added to the IReactContext.Notifications are automatically removed after the IReactContext is destroyed. The subscriptions added to IReactInstanceSettings.Notifications kept as long as IReactInstanceSettings alive.

UIDispatcher

IReactDispatcher UIDispatcher { get; }

Get ReactDispatcherHelper::UIDispatcherProperty from the Properties property bag.

JSDispatcher

IReactDispatcher JSDispatcher { get; }

Get ReactDispatcherHelper::JSDispatcherProperty from the Properties property bag.