UIWebView (iOS 5.0) does not show the red-squiggly spelling correction underlines for this:
id html= @"<div spellcheck=\"true\" contenteditable=\"true\"></div>"
[webView loadHTMLString:html baseURL:nil];
Is it possible to get them?
There are some HTML tag properties available by Apple Safari Guidelines
autocomplete: If off, deactivates automatic completion for an input element; If on, activates automatic completion for the element. Related Tags “input” Availability Available in Safari 1.0 and later. Available in iOS 1.1.1 and later.
autocorrect: If off, deactivates automatic correction for a form or input element; If on, activates automatic correction for the element. Availability Available in iOS 1.1.1 and later.
Hope this might be useful to you.
来源：https://stackoverflow.com/questions/7927605/how-to-activate-spellchecking-for-a-contenteditable-div-in-a-uiwebview