setStart and setEnd throwing error when trying to programmatically select text in UIWebView

Question

Here is some HTML that I am working with in my UIWebView:

    
         

        

                      

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Answer 1

The problem is that you're trying to set the range's boundaries in the first child node of the <div> element, which is either a white space-only text node if your HTML really does look like it does in the question, or the <span> element if there is no white space in your actual HTML. In the latter case, i.e. setting a range boundary in an element, the offset represents the number of child nodes of the element preceding the boundary.