如何在iOS中纵向和横向居中显示webview的内容？ [英] How do I center the contents of a webview in iOS vertically and horizontally?

问题描述

我用谷歌搜索了一下，我似乎无法找到任何对我有意义的东西。我需要纵向和横向中心webview的内容。我已经能够得到水平线了：

I have googled quite a bit and I can't seem to find anything that makes sense to me. I need to center the contents of a webview both vertically and horizontally. I have been able to get the horizontal to work with this:

- (void)webViewDidFinishLoad:(UIWebView *)webView {
    NSString *bodyStyle = @"document.getElementsByTagName('body')[0].style.textAlign = 'center';";
    [self.webView stringByEvaluatingJavaScriptFromString:bodyStyle];
}

但我在垂直方面找不到任何东西。有任何想法吗？任何帮助将不胜感激。

But I can't find anything on vertical. Any ideas? Any help would be appreciated.

推荐答案

试试这样，

NSString *bodyStyleVertical = @"document.getElementsByTagName('body')[0].style.verticalAlign = 'middle';";
NSString *bodyStyleHorizontal = @"document.getElementsByTagName('body')[0].style.textAlign = 'center';";
NSString *mapStyle = @"document.getElementById('mapid').style.margin = 'auto';";

[webView stringByEvaluatingJavaScriptFromString:bodyStyleVertical];
[webView stringByEvaluatingJavaScriptFromString:bodyStyleHorizontal];
[webView stringByEvaluatingJavaScriptFromString:mapStyle];

希望它会帮助你.....

Hope it will helps you.....

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