在viewDidLoad中调用UIWebView的stringByEvaluatingJavaScriptFromString是否正确？ [英] Is it correct to invoke stringByEvaluatingJavaScriptFromString of UIWebView in viewDidLoad?

问题描述

在iOS 5.0中，此代码正确工作：

   - （void）viewDidLoad 
 {
 [super viewDidLoad]; 
 [webView stringByEvaluatingJavaScriptFromString：@document.body.style.backgroundColor = \＃41414C \;]; 
} 
  

但是在iOS 4.2中没有背景发生。

如何在html没有加载的时候设置web View的背景？

解决方案

在我的情况我使用webview：webViewDidFinishLoad方法来评估JavaScript。它在4.2中正常工作，但由于我没有在iOS 5中测试过它，我不确定它在该版本中的工作情况。

I need to set the background of webView at a time when the html has not loaded.

In iOS 5.0 this code is correctly working:

- (void)viewDidLoad
{
    [super viewDidLoad];
    [webView stringByEvaluatingJavaScriptFromString:@"document.body.style.backgroundColor=\"#41414C\";"];
}

But in iOS 4.2 nothing happening with background.

How can I set background of web View at a time when the html has not loaded?

解决方案

In my case I used webview:webViewDidFinishLoad method to evaluate javascript. It was working correctly in 4.2 but since I haven't tested it in iOS 5, I am not sure about its working in that version.

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