iOS WebView Adaptive Real content height 4 ways

The first of these methods

-(void) Webviewdidfinishload: (uiwebview *) WebView

{

cgfloat Webviewheight=[webview. ScrollViewcontentsize]. height;

cgrect newframe = WebView. frame;

Newframe. size. height = webviewheight;

WebView. frame = newframe;

_webtablewview. contentsize =cgsizemake(newframe. Size. height + + kwidth -+);

}

//2. Execute the JS statement to get the DOM height of the HTML document directly
-(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;

}

// Method 3. Set the height of the UIWebView to a minimum, and then use Sizethatfits to return exactly the right size

-(void) Webviewdidfinishload: (uiwebview*) webvie{

cgsize actualsize = [WebView sizethatfits:Cgsizezero];

cgrect newframe = WebView. frame;

Newframe. size. height = actualsize. height;

WebView. frame = newframe;

}

Method 4. Traverse the WebView sub-view to get the Uiwebdocumentview height i.e. the actual height

-(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 ([Webdocviewiskindofclass: [nsclassfromstring(@ "Uiwebdocume Ntview ")class])

{

Webviewheight = Webdocview. frame. size. height; // get the height of a document

WebView. frame=webdocview. frame;

// update The height of the UIWebView

}

}

}

}

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iOS WebView Adaptive Real content height 4 ways