我注册了一名服务人员,并试图在浏览器中测试Web通知。 Chrome(和Firefox)声称服务工作者已成功注册。
在加载React应用程序时,我已获得接收通知的权限。
在我的sw.js
中,我正在监听push
事件,并试图从Chrome应用程序标签中发送示例推送消息,如上面的屏幕快照所示。
self.addEventListener("push", receivePushNotification);
在Chrome应用程序选项卡中单击Push
时,将触发push
事件,调用receivePushNotification
。但是,当我尝试在浏览器中显示通知时,什么也没有发生,也没有错误报告。
function receivePushNotification(event) {
// This prints "Test push message from DevTools."
console.log("[Service Worker] Push Received.", event.data.text());
var options = {
body: "This notification was generated from a push!"
};
/*****
I would expect the following line to display a notification, since I've already
granted permission to allow for notifications. Yet, nothing happens and there is
no error in the console.
*****/
event.waitUntil(self.registration.showNotification("Hello world!", options));
}
答案 0 :(得分:0)
在单独定义函数/未将其定义为异步函数方面,您似乎走了一步。您也没有将事件传递给函数调用。
如果您这样重写它会怎样?
self.addEventListener("push", function(event) {
console.log("[Service Worker] Push Received.", event.data.text());
var options = {
body: "This notification was generated from a push!"
};
event.waitUntil(self.registration.showNotification("Hello world!", options));
});
答案 1 :(得分:0)
这是我使用的代码。它非常通用,而且有效。
self.addEventListener('push', function (e) {
console.log('Push Received...')
const data = e.data.json()
self.registration.showNotification(data.title, {
body: 'Notified by Waelio.com!',
icon: 'https://picmymenu.s3.eu-west-3.amazonaws.com/waelio_logo.png',
})
})