Mid Sweden University

Many Smartphone users often need to transfer large files to another Smartphone or PC. Today many people are using Bluetooth, USB cable and some phone applications to transfer large files. The problem is that these existing methods for transferring large file are taking too long time, or have some other limitations. To make the file transmission more efficient could help a lot of people. Therefore it is essential to have a better file transmission system to solve this kind of problem. The Objective of this project has been to study and develop an Android mobile application for sending and receiving files to the permitted smartphone in an effective and user-friendly way. The methods being used during this project includes investigation of the existing systems with similar function, user requirement surveys, system and user requirement analysis, iterative development and application evaluation. Data transmission function will be accomplished by the Wi-fi service on the smartphone. The Wi-Fi connection between smartphones is protected by a user-defined password, which could be entered by either manual input or scan QR code generated by this application. The evaluation process carried out is based on performance, functionality and usability test. The result showed that this application is capable of transferring large file between different devices with a user-friendly graphical interface.