question: public static boolean pointInView ( View v , float localX , float localY , float slop ) { return localX >= - slop && localY >= - slop && localX < ( v . getWidth ( ) + slop ) && localY < ( v . getHeight ( ) + slop ) ; }
target:  Utility method to determine whether the given point, in local coordinates, is inside the view, where the area of the view is expanded by the slop factor. This method is called while processing touch-move events to determine if the event is still within the view.