UIWebView:页面何时真正完成加载?

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2022-01-01

UIWebView: when did a page really finish loading?(UIWebView:页面何时真正完成加载?)

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问题描述

我需要知道，当 UIWebView 完全加载网页时.我的意思是，当所有重定向都完成并且动态加载的内容准备好时.我尝试注入 javascript(查询 document.readyState == 'complete')，但这似乎不太可靠.

I need to know, when a web page has completely been loaded by UIWebView. I mean, really completely, when all redirects are done and dynamically loaded content is ready. I tried injecting javascript (querying for document.readyState == 'complete'), but that does not seem to be very reliable.

是否有来自私有 api 的事件会给我带来结果?

Is there, maybe, an event from the private api that will bring me the result?

推荐答案

我一直在寻找这个问题的答案，我从 Sebastian 的问题中得到了这个想法.不知何故，它对我有用，也许对遇到此问题的人有用.

I have been looking for the answer for this, and I got this idea from Sebastian's question. Somehow it works for me, maybe it will for those who encounter this issue.

我为 UIWebView 设置了一个委托，在 webViewDidFinishLoad 中，我通过执行 Javascript 来检测 webview 是否真的完成了加载.

I set a delegate to UIWebView and in the webViewDidFinishLoad, I detect if the webview has really finished loading by executing a Javascript.

- (void)webViewDidFinishLoad:(UIWebView *)webView {
    if ([[webView stringByEvaluatingJavaScriptFromString:@"document.readyState"] isEqualToString:@"complete"]) {
        // UIWebView object has fully loaded.
    }
}

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