Hi! For my project, i am supposed to write an application that is more or less similar to shopping savy whereby the application will scan the 2d barcode and the detail of the items would appear with the price and users can use either to buy or not and till the user finish scanning the items, user will click finish and the total price of the items which the user chooses to buy would appear. I myself is a beginner in android and java..i did try to read books and do simple programming like hello android but i know is not enough for me to write the application..any advice? i try to google but mostly they show some part of the program which I could not understand it. ty