Update README.md

README.md

@@ -49,5 +49,15 @@ The most common case is to transform an image, or a photo, which is famous as a
 
 
 
+## Application
+
+Besides transforming an image, this component is helpful in implementing transition animations. 
+
+For example, you want to transform a normal size content into a right-bottom floating small window (like the android youtube app). Using this component, you can do as following:
+
+1. Calculate the normal rect and the final rect. A Rect(left, top, right, bottom) defines the boundary of a view
+2. Use `ViewTransformer.getTransform(fromRect, toRect)` to get the transform object
+3. Use `updateTransform(transform)` to make the tranform happen( This is immediate, but you can animate it by calculating the intermediate rects and then transform using your own animation loop)
+