Android Open Source
Open Source Java
Encrypted notepad is very simple. This is a great program for beginner programmers. How to write data to a file and how to read it. Such a need is very common.
Encryption is the most primitive - we increase the code of each character by one. Just add your block here or wait. In one of the following examples, we will add interesting features. At first it will be a dynamic password login.
Download project in ZIP https://drive.google.com/file/d/10e1bjWSx88UfVqR5xB42B8xh9A6SzBIj/view?usp=sharing