The Complete Android CRUD Application In Java, PHP & MySQL

Create a new android CRUD project, set up database config constants (host, user name, password, database name), implement the connection stream, and test the connection for success.

Create a database table with five columns: an auto-incrementing id, and fields for name, age, mobile, and email, using varchar(255) and optional hashing.

Create an insert data function that connects to the database via the config file, accepts name, age, mobile, and email, builds and executes an insert query, and returns the value.

Create the displayAll function to fetch all users from the database and return results, and implement deleteData to remove a user by id from users.

Create the updateData function to update a user's name, age, email, and mobile in the database using a PHP MySQL update query, tying together connection setup and parameter handling.

Configure database constants and host details, establish a connection, and implement create, read, update, and delete operations for users, including select all and specific id actions in a MySQL backend.

Define and validate post data in PHP, then insert name, email, and mobile into the database using the insert function, and test the API with Postman.

Implement robust insert data handling by validating responses, flagging errors when response equals zero or values are missing, and enforcing post request checks to prevent invalid requests.

Create and call the display all function in displayAll.php to fetch and display user data from the database, handling no records and testing the app.

Create a delete function that sends a post request to the database to delete a user by id, then respond with deleted successfully or try again.

Create the update.php script to update user data via a post request, requiring id, name, mobile, and email, and return success or error messages based on the update result.

Create an Android Studio project with Java and min sdk 21, add material, Volley, and image view dependencies, then set up an add activity layout for name and email.

Learn to build an Android Java app that collects name, age, and email, validates inputs, and inserts data into a php mysql backend via Volley post requests.

Define and initialize the user model in java by declaring id, name, and other fields, create a constructor, set the current timestamp for record creation, and enable database interactions.