如何在新版react-native-onesignal中获取pushToken？

解决方法 #

OneSignal 新版本已经移除了旧版本的ids事件监听，你可以通过以下两种方式获取pushToken：

• 主动调用接口获取：初始化完成后直接调用异步方法OneSignal.getDeviceState()即可拿到当前设备的pushToken，适合需要在特定时机主动查询的场景。
• 订阅权限/Token变化事件：通过addSubscriptionObserver订阅订阅状态变更事件，只要pushToken发生更新就会触发回调，适合需要实时感知Token变化的场景。

你现有函数组件代码修改示例 #

useEffect(() => {
    // OneSignal Init Code
    OneSignal.setAppId("My-OneSignal-Key");
    OneSignal.setLogLevel(6, 0);
    // END OneSignal Init Code

    // 方式1：初始化后主动获取pushToken
    OneSignal.getDeviceState().then(deviceState => {
        if (deviceState && deviceState.pushToken) {
            console.log('当前设备pushToken：', deviceState.pushToken);
            // 这里处理你的token逻辑，比如上报到你的服务端
        }
    });

    // 方式2：订阅token变化事件，token更新时自动触发
    OneSignal.addSubscriptionObserver(event => {
        const { to } = event;
        if (to.pushToken) {
            console.log('更新后的pushToken：', to.pushToken);
        }
    });

    // Prompt for push on iOS
    OneSignal.promptForPushNotificationsWithUserResponse(response => {
        console.log("Prompt response:", response);
    });

    // Method for handling notifications received while app in foreground
    OneSignal.setNotificationWillShowInForegroundHandler(notificationReceivedEvent => {
        console.log("OneSignal: notification will show in foreground:", notificationReceivedEvent);
        let notification = notificationReceivedEvent.getNotification();
        console.log("notification: ", notification);
        const data = notification.additionalData
        console.log("additionalData: ", data);
        // Complete with null means don't show a notification.
        notificationReceivedEvent.complete(notification);
    });

    // Method for handling notifications opened
    OneSignal.setNotificationOpenedHandler(notification => {
        console.log("OneSignal: notification opened:", notification);
    });

    // 组件卸载时移除订阅（可选，防止内存泄漏）
    return () => {
        OneSignal.removeSubscriptionObserver();
    }
}, [])

注意事项 #

如果用户还没有同意通知权限，获取到的pushToken会为null，建议你拿到后做非空判断再处理；如果同时使用两种方式，可以覆盖首次获取和后续token更新的所有场景。

内容的提问来源于stack exchange，提问作者SatelBill