Making your application network-aware in real time. To keep track of network changes asynchronously, your application needs to register for a callback. When a network or network property change occurs your callback will be invoked.
1 You can simply lay your vinyl floor on top of the subfloor. Just unroll, cut the floor to size and itâs done â easy!  Medium room ( < 25m2) Semi-loose installation will do. Use double faced duct tape around the room to secure the flooring.
Vinyl requires a smooth surface for adhesive purposes. Many vinyl floor applications are self-adhesive, but if the installation is to be over an existing floor or another surface that is not smooth, an underlayment will be required. This is usually about one layer of 1/4-inch plywood. The vinyl is installed over that.