在 React Native 上设置 Android BroadcastReceiver

Question

我正在 React Native 上构建应用程序，我想使用 Android 服务 NotificationListenerService。为了从服务中捕获数据，我需要一个广播接收器。如何在 React Native 环境中设置 BroadcastReceiver？

Answer 1

我的方法是 emit 事件使用 getJSModule

MyListener.java

public class MyListener extends NotificationListenerService {

    @Override
    public void onNotificationPosted(StatusBarNotification sbn) {

        if (sbn.getNotification().tickerText == null) {
            return;
        }

        WritableNativeMap params = new WritableNativeMap();
        params.putString("tickerText", sbn.getNotification().tickerText.toString());
        params.putString("packageName", sbn.getPackageName());

        MyModule.sendEvent("notificationReceived", params);
    }

    @Override
    public void onNotificationRemoved(StatusBarNotification sbn) {}
}

MyModule.java

public class MyModule extends ReactContextBaseJavaModule implements ActivityEventListener {
    private static ReactApplicationContext reactContext;

    public MyModule(ReactApplicationContext reactContext) {
        super(reactContext);
        this.reactContext = reactContext;
        reactContext.addActivityEventListener(this);
    }

    public static void sendEvent(String event, WritableNativeMap params) {
        reactContext
            .getJSModule(DeviceEventManagerModule.RCTDeviceEventEmitter.class)
            .emit(event, params);
    }
    .......
}

查看 here 了解有关发送事件的更多详细信息。