title: How to add a loading image to webview?
body: <p>I'm working with a webview in my android app... everytime I open an url my page is blank and after a while the url content appears... how can I add a loading image in webview during this transition time?? I tried to call open twice, first time loading a local content and next time the real url I wanted to feed but it doesn't work, I think that something wrong with async calls.</p>
  
  <p>Thanks in advance ^^</p>
  
  <p>regards</p>