javascript - 如何从 Service Worker 发送通知

Question

我有一个服务 worker 创建了一个 Websocket 来监听通知，它工作正常。我的问题是，当我尝试显示通知时，我无法显示。这是代码

function displayNotification(title, body, tag, url, actions) {
    if (Notification.permission == "granted") {
        if (title == undefined || title == null || title == "") title = "My site"
        if (body == undefined || body == null) body = ""
        if (tag == undefined || tag == "") tag = null
        if (url == undefined || url == null || url == "") url = "https://example.com/"
        if (actions == undefined || actions == null || actions == "") actions = []

        actions.push({ action: "close", title: "Close" })

        self.ServiceWorkerRegistration.showNotification(//self.ServiceWorkerRegistration.showNotification is not a function
             title, 
            body,
            lang: "en-US",
            icon: "https://example.com/images/logo.png",
            badge: "https://example.com/images/logo.png",
            vibrate: [100, 50, 100],
            data: {
                dateOfArrival: Date.now(),
                url
            },
            timestamp: Date.now(),
            actions,
            tag
        })
    }
}

我也试过 self.showNotification() 和 this.showNotification() 都是 null

Answer 1

我找到了答案，它是 self.registration.showNotification()。希望这对找到它的其他人有所帮助!