Game Builder Tutorial 1: Build a 2D Platformer — Duke's Coffee RunA complete, code-included walkthrough that builds a playable 2D platformer — "Duke's Coffee Run" — with the Codename One Game Builder. Import a real animated sprite sheet, lay out the level, then wire win/lose logic in the generated companion class.Jul 2, 2026·18 min read
Native Linux, Apple Watch, A Game Builder And Crash ProtectionThis week adds a native Linux desktop port, an Apple Watch and Wear OS port, a visual Game Builder with a high-level gaming API, and seamless crash protection that symbolicates native crashes and files them as GitHub issues. We also rebuilt the…Jun 26, 2026·9 min read
Print Anywhere, And Put Your Cards In Apple WalletA new cross-platform printing API hands PDFs and images to the native print dialog on every port, and iOS builds can now generate Apple Wallet issuer-provisioning extensions from build hints with no native code.Jun 23, 2026·5 min read
Java To A Native Windows EXE: No JVM, 5MB, x64 And ArmThe new native Windows port compiles your Java to a standalone Win32 executable through ParparVM, Direct2D, and DirectWrite. No JVM, no bundled runtime, a 5MB hello world, and both x64 and arm64 from one build.Jun 22, 2026·6 min read
Build Games In Java: Sprites, Box2D Physics And Low-Latency SoundThe new com.codename1.gaming package adds a game loop, sprites, pollable input, a low-latency sound pool, and rigid-body physics powered by a bundled Box2D engine, all running unchanged on every platform including iOS.Jun 21, 2026·9 min read
Native Java Win32, 3D Gaming, Printing and WalletThis week brings native Windows executables with no JVM, a portable 3D graphics API, a gaming API with Box2D physics, cross-platform printing, and Apple Wallet support, in what is probably our biggest update ever.Jun 19, 2026·9 min read
Background Work, Push Topics, And Richer NotificationsConstraint-based background work, foreground services, push topic subscriptions, shared-content handling, and a much richer local notification API, all with full simulator support.Jun 16, 2026·4 min read
