Question

ios wkwebview 是否有缓存

Answer 1

1：获取webviewscrovllviewcontentsize进行设置

-(void)webViewDidFinishLoad:(UIWebView

*)webView{

CGFloat

webViewHeight=[webView.scrollView

contentSize].height;

CGRect

newFrame
=
webView.frame;

newFrame.size.height

=
webViewHeight;

webView.frame

=
newFrame;

}

2：执行js语句 直接获取html文档dom高度

-(void)webViewDidFinishLoad:(UIWebView

*)webView{

CGFloat

webViewHeight=

[[webView

stringByEvaluatingJavaScriptFromString:

@"document.body.offsetHeight"]floatValue];

// CGFloat webViewHeight= [[webView
stringByEvaluatingJavaScriptFromString:
@"document.body.scrollHeight"]floatValue];

CGRect

newFrame
=
webView.frame;

newFrame.size.height

=
webViewHeight;

webView.frame

=
newFrame;

}

3.先UIWebView高度设再使用sizeThatFits返刚合适

-(void)webViewDidFinishLoad:(UIWebView

*)webView{

CGSize

actualSize
=
[webView

sizeThatFits:CGSizeZero];

CGRect

newFrame
=
webView.frame;

newFrame.size.height

=
actualSize.height;

webView.frame

=
newFrame;

}

4.遍历webview视图 获取UIWebDocumentView高度即实际高度
Objective-C

-(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;//获取文档高度

webView.frame=

webDocView.frame;

//更新UIWebView 高度

}

}

}

}