How to create or generate QR (Quick Response) Code in your Android App? - complete source code

In this tutorial a very simple layout has been designed with one Text Box/ plain text field to enter the string which needs to be converted in the QR Code.

It uses the ImageViewer to display the QR code which is generated in your App in Bitmap format.

Complete source code of the App and screenshots of the test results of the QR Scanner is available at the below link:

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[Moustapha-]

Thanks for the tutorial,
I have multiple edit texts which i want to incorporate into the qr code generation such as email, phone number, and date, but the program is only reading one text edit. how do i read the other edit texts?

[Warren]

Your channel is amazing ty - another person asked this question. Can you save this QR code to another screen on the app once generated? So that another page will present a list and picture of the QR generated?

[jasonarisa]

I have a custom QR code like the ones from Apple, Facebook, and Snapchat, and I want to have it as my "QR Code" instead of the one from BitMatrix. Do you know how I can do that?

[hpwong]

Can it generate one QR code under multiple entry such as name, class, id ?

[charliecliforddevilla]

Why does the warning message always appears saying: "Insufficient text color contrast ratio"

[patrickjosephtolentino]

Hi. What code should i add if im gonna use more than 1 edittext? thanks

[faizaaslam]

Why are we using Zing instead of Google vision library?

[Harsh-jwiz]

Is there any way to convert a pdf into qr_code and scan the qr_code.

[vijaykumarjain]

How can i generate a qr code that can only be readed or reedemed only once

[haithemsoulai]

hi what abaut if i wanna save the qr code

[ruhlovnikita]

Thx for tutorial!
Although I suppose, there is a better way than manual loop for a bitmap

[averygemgutierrez]

sir how to store multiple data in a single qr code?