//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 );
}
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//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;
}
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//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;
}
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//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
}
}
}
}
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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!