kotlin安卓在Jetpack Compose 框架下跨组件通讯EventBus

// JavaScript 接口类
class WebAppInterface(private val context: Context) {

    init {
        //注册订阅者
        //避免重复注册，重复注册会导致崩溃
        if (!EventBus.getDefault().isRegistered(this)) { //这里的取反别忘记了
            EventBus.getDefault().register(this)
        } else {
            Log.i("xudong debug", "请勿重复注册事件, from Composable WebView")
        }
    }


    @Subscribe(threadMode = ThreadMode.MAIN)
    fun onMessageEvent(event: MessageEvent) {
        // 处理事件
        Log.i("xudong debug", "监听者 webview interface, received message: ${event}")
    }

    @JavascriptInterface
    fun playAudio(message: String) {
        Toast.makeText(context, "playAudio: $message", Toast.LENGTH_SHORT).show()
        EventBus.getDefault().post(MessageEvent("playAudio", message))
    }

    @JavascriptInterface
    fun stopAudio() {
        Toast.makeText(context, "stopAudio", Toast.LENGTH_SHORT).show()
        EventBus.getDefault().post(MessageEvent("stopAudio"))

    }
}

    //准备接受事件的订阅者
    @Subscribe(threadMode = ThreadMode.MAIN)
    fun onMessageEvent(event: MessageEvent) {
        Log.i("xudong debug", "监听者AudioPlay 收到消息:  ${event.name}, key1: ${event.key1}")
        if(event.name == "playAudio") {
            this.play()
        }
        if(event.name == "stopAudio") {
            this.stop()
        }
    }