bar code scanner implementation in android

I have a probl开发者_StackOverflow中文版em that I have to create my self bar code scanner of my app not using any precode as zxing as barcode scanner app of google. I want my self code of bar code scanner in my app because my client doen't want any dependency on any other app. So, what will I do? becoz I have searched this on web but nothing get right result. PLease help me.

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Programming a barcode scanner application yourself is a very difficult task and most likely when you tell your client the amount of money it will cost, they will change their mind about dependencies and third party libraries.

However, since ZXing is an open source project, you can import that library into your project and have it 'built-in' and included into your project (without the need for the user to download an additional application). You will still be using their code, so you'll have to abide by their license, but your users will no longer have to have 'Barcode Scanner' installed to use your application.