Example usage for com.facebook.react.modules.core RCTNativeAppEventEmitter emit

Introduction

In this page you can find the example usage for com.facebook.react.modules.core RCTNativeAppEventEmitter emit.

Prototype

void emit(String eventName, @Nullable Object data);

Source Link

Usage

From source file:com.microsoft.c3p.reactnative.C3PReactModule.java

License:Open Source License

@ReactMethod
public void addStaticEventListener(String type, final String event, Promise promise) {
    final String registrationToken = Integer.valueOf(this.nextEventRegistrationToken.getAndIncrement())
            .toString();//from w  w w.ja va2s  . co  m
    final RCTNativeAppEventEmitter eventEmitter = this.getEventEmitter();
    Consumer<JavaScriptValue> eventListener = new Consumer<JavaScriptValue>() {
        @Override
        public void accept(JavaScriptValue eventObject) {
            WritableNativeMap eventMap = C3PReactModule.convertObjectResult(eventObject);
            eventEmitter.emit(event + ":" + registrationToken, eventMap);
        }
    };
    try {
        this.bridge.addStaticEventListener(type, event, eventListener);
        this.eventListenerMap.put(registrationToken, eventListener);
        promise.resolve(registrationToken);
    } catch (InvocationTargetException e) {
        promise.reject(e.getTargetException());
    }
}

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From source file:com.microsoft.c3p.reactnative.C3PReactModule.java

License:Open Source License

@ReactMethod
public void addEventListener(ReadableMap instance, final String event, Promise promise) {
    final String registrationToken = Integer.valueOf(this.nextEventRegistrationToken.getAndIncrement())
            .toString();/*w  ww . j  a v  a 2s  .c o m*/
    final RCTNativeAppEventEmitter eventEmitter = this.getEventEmitter();
    Consumer<JavaScriptValue> eventListener = new Consumer<JavaScriptValue>() {
        @Override
        public void accept(JavaScriptValue eventObject) {
            WritableNativeMap eventMap = C3PReactModule.convertObjectResult(eventObject);
            eventEmitter.emit(event + ":" + registrationToken, eventMap);
        }
    };
    try {
        JavaScriptValue instanceAdapter = new ReadableMapAdapter(instance);
        this.bridge.addEventListener(instanceAdapter, event, eventListener);
        this.eventListenerMap.put(registrationToken, eventListener);
        promise.resolve(registrationToken);
    } catch (InvocationTargetException e) {
        promise.reject(e.getTargetException());
    }
}

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