Hippy/docs/en-us/android/event.md

Native Events

When the native network is switched, or the horizontal/vertical screen display is switched, the native needs to send some global broadcast events to the front-end, so that the front-end can control the service state according to different states.

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Native Sending

The native calls the code at the place where the events need to be sent.

HippyMap hippyMap = new HippyMap();
hippyMap.pushString("result", "hello i am from native");
mEngineManager.getCurrentEngineContext()
    .getModuleManager()
    .getJavaScriptModule(EventDispatcher.class)
    .receiveNativeEvent("rotate", hippyMap);