在java端addListener上的React Native句柄

时间:2017-06-29 09:29:46

标签: android react-native react-native-android

我使用NativeEventEmitter的addListener方法将JavaScript中的侦听器添加到本机端。

    import {NativeModules, NativeEventEmitter, EmitterSubscription} from 'react-native';
        const CoreBridge = NativeModules.Core;

        class Core extends NativeEventEmitter {
            constructor() {
                super(CoreBridge);
            }

            addListener(event: CoreEvent, handler: Function): EmitterSubscription {
                return super.addListener(event, handler);
            }
        }

export default new Core();

我可以在本机Java端处理addListener()吗?我试过这个,但没有被称为:

@ReactMethod
public void addListener(String event) {
//register native listener for event emitting
}

对于iOS,可以这样做:

#pragma mark - RCTEventEmitter

- (NSArray<NSString > )supportedEvents {
    return @[EVENT_ONE,
             EVENT_TWO];
}

/// This method will be called when the first event listener is added.
- (void)startObserving {}

/// This method will be called when the last event listener is removed.
- (void)stopObserving {}

我可以为Android处理相同的事件侦听器吗?

0 个答案:

没有答案