Android Developer Tutorials
This tutorial is going to be quick and to the point. When you want to create a Button or other Android Widget you more than likely want a ripple effect when it is pressed. I’ll…
Read more of [TUT] Programmatically create a RippleDrawable of any color
This post explains how to control time and specifically control System.currentTimeMillis. To make your code more flexible, maintainable and in the end testable! Showing an example application that uses time to define different behaviour for…
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Creating comments with timestamps like YouTube (java.util.Date or JodaTime) This tutorial shows how you can create timestamped messages like the YouTube comments section. What this means is we will convert the timestamp (date) that each…
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Have you ever had a spreadsheet and thought it’d be really good if I could get data into this from a mobile app. What a great idea, next comes the thought that this is actually…
Read more of [TUT] Send app data to a web spreadsheet (Google Sheets)
Below is an excerpt from my book “Learning Android Application Testing” that explains how you can write tests that interact with the Android system using files, databases or shared preferences without corrupting or being affected…
Read more of [TUT] Mocking shared preferences to test in isolation
I hope you know the Android Design Principles, if not shh quick read them here. There is also a great talk on the principles from Google IO, so if you prefer video click this. Here…
Read more of Enchant your users, without boring them with repetition – Animations
This is a continuation on my last face detection tutorial (here) that took you through the basics of retrieving the camera and giving user feedback when a face is detected. Including best practice when loading…
Read more of [TUT] Front Camera Face Detection – with preview