Sarker, Md. Siyam; Shakil, Hasibul Karim; Mondal, Koushik Kumar
(Daffodil International University, 2018-05)
Now a days we live in an era of technology, smart phone become a part of our daily life. It is no
longer a communication device only but also an essential part of our working life. Android is
being popular day by day ...