title: Zoom in and out with touch in Xamarin.Forms
body: <p>I am new to Xamarin and trying to create a simple page. I have scrollLayout and grid inside. In the grid I have a frame and some text in frame. I deployed it on my andriod but when i try to enlarge the screen with touch(two fingers) it doesnt enlarge the screen. I want user to enlarge the text and read. Any help would be appreciated please..</p>