choreographer

A modern smartphone floating at an angle, displaying a vibrant live wallpaper shifting from autumn to winter, surrounded by glowing neon data streams and an efficient battery icon with a green leaf.
Articles, Solutions

Battery-Efficient Canvas Rendering: Lessons From a Live Wallpaper

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Building a live wallpaper is one of the best ways to learn Android’s rendering pipeline — and one of its harshest teachers of battery discipline. When your app draws on the home screen all day, every wasted frame eventually shows up in someone’s battery stats. Over the years building Seasons Live Wallpaper, I’ve learned that […]

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Tutorials

Android Choreographer API: Frame Timing, VSYNC, and Smooth 60fps Rendering

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What Is the Choreographer API? The Choreographer API is Android’s internal frame timing system — the heartbeat of smooth animation. Every frame your app draws, the Choreographer orchestrates the timing. It synchronizes with the device’s VSYNC signal (the vertical refresh of your screen), and it exposes a callback mechanism so you can hook into that

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