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UIWebView高度计算

最近做类似新闻详情页,其中用到webview,需要计算出webview高度,将其添加到scrollview,以达到原生效果。

网上看到的例子大概如下:

方法1:在webviewdidfinishload里执行如下js代码;

-(void)webViewDidFinishLoad:(UIWebView *)webView{

    float height = [[webViewstringByEvaluatingJavaScriptFromString:@"document.body.offsetHeight;"]floatValue];

    //document.body.scrollHeight

}

或者   NSString * height = [webView stringByEvaluatingJavaScriptFromString:@"document.body.scrollHeight"];

方法二:

-(void) webViewDidFinishLoad:(UIWebView *)webView

{

    CGRect frame =webView.frame;

    CGSize fittingSize = [webViewsizeThatFits:CGSizeZero];

    frame.size = fittingSize;

    webView.frame = frame;

}