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Tom Colvin

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ProAndroidDev

Implementing Passkeys in Android — A Full-Stack Guide

The internet would be a much more secure place for its users if passkeys replaced passwords. They are phishing-proof, guess-proof and…

May 12

Implementing Passkeys in Android — A Full-Stack Guide

May 12

5 steps to an effective app MVP: Validate your app idea without spending a fortune

The rules I’ve built up over 11 years of working with app businesses, to quickly identify whether an app idea is a goer or not.

Feb 4

5 steps to an effective app MVP: Validate your app idea without spending a fortune

Feb 4

Published in

ProAndroidDev

AI Vision on Android: CameraX ImageAnalysis + MediaPipe + Compose

Last week we looked at the basics of the CameraX library. That laid the foundations for something really exciting … AI vision! Now we can…

Dec 19, 2024

Illustration of a brain in a circuit board pattern

Dec 19, 2024

Published in

ProAndroidDev

Let’s build an Android camera app! CameraX + Compose

Writing customised camera experiences on Android has traditionally been very difficult. For one thing, photography itself is difficult: as…

Dec 11, 2024

Flow chart showing how the PreviewView is passed to the Preview’s setSurfaceProvider, to create a working preview

Dec 11, 2024

Published in

ProAndroidDev

Seven recipes to understand flows and asynchrony in Kotlin

In the clean world of Kotlin coroutines, we can have many tasks running at different times. Suspend functions and flows are two examples...

Mar 14, 2024

Seven recipes to understand flows and asynchrony in Kotlin

Mar 14, 2024

Published in

ProAndroidDev

Seven demos to understand coroutines: scope, context and Jobs

Understanding coroutines — really understanding them, not just learning patterns — comes from seeing what goes on under the hood.

Feb 19, 2024

A box being handed over

Feb 19, 2024

Published in

ProAndroidDev

Coroutine patterns in Android, and why they work

I know many Android developers who learn coroutines through code patterns, and that is usually enough to get by. But doing so misses the…

Jan 21, 2024

An org chart

Jan 21, 2024

Published in

ProAndroidDev

Android, Bluetooth and BLE the modern way: a complete guide

Bluetooth is an immensely fun technology to work with. Once you learn how to search for and communicate with devices, you will be surprised…

Jan 10, 2024

People sending files and documents via Bluetooth on mobile devices

Jan 10, 2024

Published in

ProAndroidDev

A flexible, modern Android app architecture: complete step-by-step

Here we teach Android architecture by example. That means showing how various architecture decisions are made. We will encounter…

Jul 4, 2023

A flexible, modern Android app architecture: complete step-by-step

Jul 4, 2023

Published in

ProAndroidDev

How to architect Android apps: a deep dive into principles, not rules

Here’s a scenario that’s recognisable to most Android developers… You are tasked with adding a simple feature to an app, but doing so…

May 25, 2023

Workers architecting a building

May 25, 2023

Tom Colvin

Tom Colvin

Android developer / consultant; freelancer or through my agency Apptaura. Google Developer Expert in Android. tomcolvin.co.uk Articles 100% me, no AI.

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