Android scans the QR code to log in to the web page

1. Flow chart to realize scanning code to log in to the web page:

2. Implementation mechanism of scanning QR code to log in:

The detailed flow chart example is as follows:

Establishing database:

3.PHP web page generates a simple QR code

4.PHP polls the database

Use AJAX for asynchronous loading polling operation.

5.PHP custom API interface

Customize the API interface in PHP to realize the function of writing information to the database.

6. The Android client scans the QR code

uses the ZXing open source library and relies on the open source library to complete the function of scanning the QR code.

7. The Android client accesses the custom API to realize web page login

Use network programming combined with API to realize the login function.

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The above introduces how to scan the QR code to log in to the web page on Android, including the relevant content. I hope it will be helpful to friends who are interested in PHP tutorials.