Design Tic-Tac-Toe game on Android using Observer Pattern and Custom Component fundamentals . Your application must have three screens Screen will allow selecting of player 1 symbol from a set of predefined image icons and enter his/her name. Screen two will allow selecting of player 2 symbol from a set of predefined image icons and enter his/her name. Screen three will implement game screen, where on top it will track and display players name whose turn is now, followed by 9 game buttons. At the bottom it will have buttons to Start, Cancel and Restart the game. A winner must be displayed as soon as detected by the game.