One of my pet peeves is the “Are you sure?” dialog. I’ve used it a lot myself because it’s the “easy way out”, but when possible I try to avoid it. This is especially important in mobile where constant prompts really slow down the workflow. The trick that lets us avoid the “Are you sure?” … TIP: Undo Delete

I wrote in the past about the problems in the List class, so I won’t rehash them here. However, the ideas behind list are still valuable. One such idea is the list model which allows us to separate the state from the view. Unfortunately the renderer architecture makes this hard to implement for most developers … Button Lists

We talked about our support for Progressive Web Apps before. We added quite a few enhancements since that support was introduced and it’s a pretty powerful feature. Personally I consider it a killer feature, even if Google decides to ban your account you can still distribute your app. One of the cool features is the … Install on Home Screen

One of the things I like most about our subscription base is its solid nature. We still have a lot of subscribers in the $9 per month plan which we discontinued several years ago (it was so long ago I can’t find the relevant blog post anymore). That’s wonderful, it means people like our product … TIP: Canceling Subscriptions

Box layout Y is one of the most used layouts in Codename One. It’s a wonderful, easy to use layout that makes vertical scrollable layout trivial. I love its simplicity, but sometimes that simplicity goes too far. A good example of that is the a common layout where we have a button at the bottom … Bottom Align

A few years back we had Codename One LIVE! It allowed developers to preview designs built with the old GUI builder on devices. Today we’re introducing the equivalent functionality for the new GUI builder and the Codename One Build app. Cloud Connect allows you to instantly see changes from the GUI builder in the app. … Introducing Cloud Connect

I’ve been pretty busy over the past few weeks and didn’t get a chance to write a “what’s new” post. This caused a huge backlog of new features which I’ll try to cut down in this post. UI Validation This is a feature that’s coming in the Friday update. Component inspector has a new “Validate” … Validate, Owner, Badges, ImageViewer and Picker Range

Apple introduced push notification at a time when iOS apps didn’t support multi-tasking. It was used as an intrusive notification system that allowed an app to communicate it had something important to tell you. Back then push messages would trigger a dialog box as it predated the pull down notification tray pioneered by Android. The … TIP: Don't Use Push as a Communication Protocol

A while back Steve wrote about auto-renewing subscriptions and I recently got a chance to implement such a subscription in an app. However, it seems that all the changes in the world of in-app purchase created a situation where API’s work in some cases and don’t work for all of them. After publishing this post … Subscription Pitfall

Crisp powers the chat button in the bottom right portion of our site. It also handles emails and a host of other great features. One feature we didn’t take advantage of is the mobile app support. To solve that we just issued a new Crisp cn1lib which we integrated into the new versions of our … Crisp cn1lib

We launched the Codename One Build App beta on Android last week and now we have a public beta for iOS as well. You can sign up to join the public beta through this link. Notice that you will need testflight on your device to join the public beta test. As is the case with … Build App on iOS

Proguard is one of the most disliked aspects of Android programming. Developers attack it left and right because there are so many nuances to it. That’s a huge mistake, proguard is one of the most important tools in our development toolchain. It makes our apps slightly more secure, much smaller and even slightly faster. Codename … TIP: Obfuscation Mapping File