//第一种方法
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- ( void )webViewDidFinishLoad:(UIWebView *)webView { CGFloat webViewHeight=[webView.scrollView contentSize].height; CGRect newFrame = webView.frame; newFrame.size.height = webViewHeight; webView.frame = newFrame; _webTablewView.contentSize = CGSizeMake( 320 , newFrame.size.height + 64 + KWIDTH - 100 ); } |
//2.执行js语句 直接获取html文档的dom高度
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- ( void )webViewDidFinishLoad:(UIWebView *)webView{ CGFloatwebViewHeight =[[webViewstringByEvaluatingJavaScriptFromString: @document .body.offsetHeight]floatValue]; // CGFloat webViewHeight= [[webViewstringByEvaluatingJavaScriptFromString:@document.body.scrollHeight]floatValue]; CGRectnewFrame = webView.frame; newFrame.size.height= webViewHeight; webView.frame= newFrame; } |
//方法3.先将UIWebView的高度设为最小,然后再使用sizeThatFits就会返回刚好合适的大小
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-( void )webViewDidFinishLoad:(UIWebView*)webVie{ CGSize actualSize = [webView sizeThatFits:CGSizeZero]; CGRect newFrame = webView.frame; newFrame.size.height = actualSize.height; webView.frame = newFrame; } |
//方法4.遍历webview子视图 获取UIWebDocumentView高度即实际高度
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-( void )webViewDidFinishLoad:(UIWebView *)webView{ CGFloat webViewHeight = 0 .0f; if ([webView.subviews count] > 0 ) { UIView *scrollerView = webView.subviews[ 0 ]; if ([scrollerView.subviews count] > 0 ) { UIView *webDocView = scrollerView.subviews.lastObject; if ([webDocView isKindOfClass:[NSClassFromString( @UIWebDocumentView ) class ]]) { webViewHeight = webDocView.frame.size.height; //获取文档的高度 webView.frame=webDocView.frame; //更新UIWebView 的高度 } } } } |
以上所述是小编给大家介绍的iOS Webview自适应实际内容高度的4种方法详解,希望对大家有所帮助,如果大家有任何疑问请给我留言,小编会及时回复大家的。在此也非常感谢大家对服务器之家网站的支持!