[英]iPhone UIWebView - Calling loadHTMLString:baseURL: a second time doesn't do anything?
Is the -loadHTMLString:baseURL:
method of UIWebView meant to only be called once per instance? UIWebView的
-loadHTMLString:baseURL:
方法是否每个实例只能调用一次?
Here's my logic flow: 这是我的逻辑流程:
1. View loads & supplies UIWebView placeholder text via -loadHTMLString:baseURL: 2. NSURLConnection requests a URL asynchronously 3. Upon NSURLConnection finished, replace UIWebView content with loaded data via -loadHTMLString:baseURL:
Debugging shows that loadHTMLString:baseURL:
is being called and the string being passed in is correct, but the UIWebView isn't updated. 调试显示正在调用
loadHTMLString:baseURL:
并且传递的字符串正确,但是未更新UIWebView。 I even tried calling [webViewInstance setNeedsDisplay] thinking a redraw would fix it, but no dice. 我什至尝试调用[webViewInstance setNeedsDisplay],以为重绘可以解决该问题,但没有骰子。
In Apple Developer docs, it says nothing about the method being one-call-per-instance, but based on its behavior, this is what it seems like. 在Apple Developer文档中,它没有说该方法是“每实例一次调用”,而是基于其行为,这看起来像是。 Anyone else run into this?
还有其他人遇到吗?
There's no limit on the number of times loadHTMLString: can be called. 对于loadHTMLString:可以被调用的次数没有限制。 I call it hundreds of times on the same UIWebView in my app.
我在应用程序中的同一UIWebView上调用了数百次。
Did you implement webView:shouldStartLoadWithRequest:navigationType: ? 您是否实现了webView:shouldStartLoadWithRequest:navigationType :? If you did, make sure you return YES.
如果这样做,请确保返回YES。
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