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tutorial

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All General Ubuntu Linux Install

Android Sep 13, 2026 3 min read

Flutter Login and Signup Screen tutorial: iOS + Android + PHP 8 + Biometrics

A Flutter app for iOS and Android with signup, login, logout and Face ID or fingerprint unlock, talking to a PHP 8 API. The session token goes in the Keychain or the Android Keystore, and the forms work with password AutoFill on both platforms.

iOS Sep 13, 2026 4 min read

iOS Login and Signup Screen tutorial: SwiftUI + iOS 26 + PHP 8 + Face ID

Eleven years after the Swift 2 version, here is the login and signup tutorial again: SwiftUI screens, async/await networking, the session token in the Keychain, Face ID unlock, and a PHP 8 API that stores passwords and tokens the way they should be stored.

iOS Jul 14, 2015 1 min read

iOS Login and Signup Screen tutorial : Swift 2 + XCode 7 + iOS 9 + JSON

This tutorial will guide you to create a simple app with a Signup and Login screen which takes username and password from the user and then posts it to an url and parse the JSON response.

iOS Jul 31, 2014 1 min read

iOS Login and Signup Screen tutorial : Swift + XCode 6 + iOS 8 + JSON

This tutorial will guide you to create a simple app with a Signup and Login screen which takes username and password from the user and then posts it to an url and parse the JSON response. We will have three view controllers for this project, Signup, Login and Home.

iOS Jul 13, 2013 1 min read

Protected: iOS: Linea Pro tutorial – Scan Barcodes

This tutorial walks you through on how to get your Linea Pro device to scan a barcode.