We have loads of demo Codename One apps hosted on Github, however cloning and running a project can be a little tricky because we generally don’t publish the dependent jar files (e.g. CodenameOne.jar) in the Github repository. This helps keep the repository lean, but it adds some steps to the process of cloning and running … Clone and Run Codename One Demos In Single Line of Code

I’ve been working on creating a clone of the Uber app for our upcoming update of the Build Real World Full Stack Mobile Apps in Java course. There is a lot to go through there but the basics are surprisingly easy. E.g. this is the login form for the native Uber app on my Android … Uber vs. Clone – Spot the difference

We are thrilled to announce the release of Codename One 3.8. Codename One is an open source “Write Once Run Anywhere” mobile solution for Java developers! This new release significantly refines the native look and feel of Codename One, it brings the GUI builder to a new level with styling support. It finally adds Mac … Codename One 3.8 is Live

I published this video a while back but it was longer and a bit confusing (over 40 minutes). Since some developers watch it before getting into Codename One I thought it would be in order to streamline it into a more manageable length and transcribe the content like I did with the newer videos. I … Tutorial – What is Codename One

Steve has been pretty busy. We have new support for Mac Appstore builds as part of our desktop build process. That means you can build a signed Mac desktop app with Codename One which required a bit of work with previous releases. He also adapted our automated tests for Codename One so they would run … Mac Appstore Builds & Device Farms

Codename One 3.8 should land one week from now and from later today we are effectively in code freeze. Please update to the release candidate of 3.8 tomorrow morning to help us track some last minute bugs and regressions. As is usually our process we will release updates as necessary with code reviews and next … Codefreeze for 3.8

We had a lot of posts covering images, multi-image and density. It’s one of the more challenging concepts to explain to developers coming from a desktop development background. Density is a simple concept to explain but the implications of it are sometimes counter-intuitive e.g. which device has higher density: Your phone or your 4k TV? … Tutorial – Working with Images and Densities

Last week we discussed the first part of working with text components and left some big tasks for this week. This week we’ll try to address the remaining issues with text input and make it easier to construct UI’s. This is crucial as we’ll be going into code freeze soon and we need enough time … Pixel Perfect – Text Input (Part 2)

We will enter code freeze for Codename One 3.8 next week and have a lot of things to clear off the table in order to get there! The first order of business is that there will be no Codename One 3.9…​ Instead we will go right to 4.0 and switch to major version number update … New Milestones and Features

Some of our how do I videos are so old it’s embarrassing…​ This is especially true for some core concepts videos as they were some of the first ones we made. The worst part is that these are probably the most important videos we have as they are viewed by developers completely new to Codename … Tutorial – Creating Lists

I started working on this post back in August and so much happened in between I just had to scrap the whole thing and start over again…​ I’ve discussed buttons before and now it’s time for TextField & TextArea. But before we go into that lets take a moment to talk about the problems that … Pixel Perfect – Text Input

The information in this blog post is slighly out of date. Check out the newer blog post that covers positioning components on the map. I’ve recently added a segment to the online course covering the native maps. This segment is a part of a larger trend towards the upcoming Uber demo which we will release … TIP: Map Layout Manager