I would like to thank my parents for everything they did for my education and took me to the next step in my career; my sister, Goya Khan for always teasing me; and my friend/teacher/mentor, Farzeen Qureshi who always held me tightly in difficult times of my life. I thank Folio3 for being the first step in my professional life, for teaching me different platforms, and keeping me motivated. I give my special thanks to M. Aamir Ibrahim, Ayesha Ibrahim, and Wahaj Sherwani for teaching me Android/Game Development and helping me stay updated with the current technologies. I thank all of my peers, co-author, and Packt Publishing for their trust in me. Last but not least; I thank Allah (the Almighty) because without his help, I would just be a particle in sand.

First of all, I would like to thank Allah (the Almighty) for everything and this life. Then I would like to thank my lovely sisters, Navera Karim and Sumera Aijaz, who always have been proud of me and would be shocked and surprised when they'll get this book in their hands. Then, I would like to thank my parents, Ammi and Abu, and my aunty, for all their prayers and support, motivation, and hopes for me, and my cousins, Fayaz Ahmed Memon, Ayaz Ahmed Memon, and Sheeraz Ahmed Memon, who are more than cousins and brothers to me. I would like to thank my best teachers, Shahid Razzaq, Shamyl Bin Mansoor, and Qasim Rajpoot, who taught me everything that I have written in this book directly or indirectly. I would like to thank my fiancée, Gul Sanober, for her understanding and support throughout the process of writing this book and for her ongoing support in allowing me to do what I truly enjoy in life. I would like to thank my students for keeping me motivated, especially Asad Hussain, Saifullah, Muhammad Saad, and Sara Ali for their support throughout the whole writing process by asking almost every day about the progress of the book. Thanks to my best friends, Arslan Ahmed Abro, Mubashir Hassan, and Ali Hussain, for making my life more funny and enjoyable. Last but not least; I would like to say a BIG thanks to my co-author Usama Aftab and Packt Publishing for their support and help in setting this whole project in motion and publishing my first ever book.