using pinch in the webview android

I have two questions:

• I find this code to use pinch in the webImageView but when I change webImageView by WebView. I obtain an error in the code. how I use pinch in the webview??

   // create the WebImageView object from xml
  WebImageView img = (WebImageView) findViewById(R.id.main_pic);
  // fetches the image in a background thread
  img.setImageFromURL("http://www.mysite.com/mypicture.jpg");
  // enable pinch-zoom abilities on the image
  new PinchImageView(img);
  

• When I add pinch in my code is tha开发者_Python百科t supported by all the mobile android or you should have a specific screen to make it work it.

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You can enable zooming in a WebView by following WebView setting

mWebView.getSettings().setBuiltInZoomControls(true);

Also you can set the default zoom level by using ZoomDensity

mWebView.getSettings().setDefaultZoom(WebSettings.ZoomDensity.CLOSE);

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Have you added the referencing library of Nikko? http://code.google.com/p/android-pinch/wiki/PinchImageView