问题描述
如何使用javascript可靠地检测到在WKWebView中加载页面?我希望能够检测到这些情况:
How can I reliable detect using javascript that a page is loaded inside a WKWebView? I'd like to be able to detect these scenarios:
- iOS& WKWebView
- iOS& Safari
- 不是iOS
有一个类似的问题关于UIWebView 。但它已经很老了,我不确定WKWebView是否仍然适用。
There is a similar question about UIWebView here. But it's quite old and I'm not sure if same still applies to WKWebView.
推荐答案
你可以检查是否存在 window.webkit.messageHandlers
WKWebKit用于从JavaScript接收消息。如果它存在,你在 WKWebView
里面。
You can check for the existence of window.webkit.messageHandlers
which WKWebKit uses to receive messages from JavaScript. If it exists, you're inside a WKWebView
.
结合简单的用户代理检查应该做技巧:
That combined with a simple user agent check should do the trick:
var iOS = (navigator.userAgent.match(/(iPad|iPhone|iPod)/g) ? true : false);
var isWKWebView = false;
if (window.webkit && window.webkit.messageHandlers) {
isWKWebView = true;
}
这篇关于检测是否在JavaScript中的WKWebView内加载了页面的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!