安装
event of the
ServiceWorkerGlobalScope
interface is fired when a
ServiceWorkerRegistration
acquires a new
ServiceWorkerRegistration.installing
worker.
| 冒泡 | No |
|---|---|
| 可取消 | No |
| 接口 |
ExtendableEvent
|
| 事件处理程序特性 |
ServiceWorkerGlobalScope.oninstall
|
The following snippet shows how an
安装
event handler can be used to populate a cache with a number of responses, which the service worker can then use to serve assets offline:
this.addEventListener('install', function(event) {
event.waitUntil(
caches.open('v1').then(function(cache) {
return cache.add(
'/sw-test/',
'/sw-test/index.html',
'/sw-test/style.css',
'/sw-test/app.js',
'/sw-test/image-list.js',
'/sw-test/star-wars-logo.jpg',
'/sw-test/gallery/',
'/sw-test/gallery/bountyHunters.jpg',
'/sw-test/gallery/myLittleVader.jpg',
'/sw-test/gallery/snowTroopers.jpg'
);
})
);
});
You can also set up the event handler using the
ServiceWorkerGlobalScope.oninstall
特性：
globalScope.oninstall = function(event) {
...
};
| 规范 | 状态 | 注释 |
|---|---|---|
|
服务工作者
The definition of 'install' in that specification. |
工作草案 |
| 桌面 | 移动 | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
安装
event
|
Chrome 40 | Edge ≤79 |
Firefox
44
|
IE No | Opera 24 | Safari 11.1 | WebView Android 40 | Chrome Android 40 | Firefox Android 44 | Opera Android 24 | Safari iOS 11.3 | Samsung Internet Android 4.0 |
完整支持
不支持
实验。期望将来行为有所改变。
见实现注意事项。
ServiceWorkerGlobalScope