clear WebView content
<p>i have a WebView in my app with wrap_content width and height</p>

<p>before i use webview.loadData  , the width and height of the it was 0 , </p>

<p>after i load a url(or i use webview.loadData) , it'll display a web page.</p>

<p>my question is , how can i clear the webview to recover it back to the original state,  just as </p>

<p>before it loadData??</p>
