Adding Stylus support to your Android app
summary
Shows how the Low-Latency Jetpack Library pairs front- and multi-buffered GL layers to cut graphics latency by 50% or more on stylus input, using a SurfaceView parent and a GLFrontBufferedRenderer with callbacks onDrawFrontBufferedLayer and onDrawDoubleBufferedLayer. The app renders incremental stroke updates into the front buffer via renderFrontBufferedLayer, then calls commit to re-render the full stroke into the multi-buffered layer to hide artifacts. Targeted only at stylus workflows across ~270 million large-screen devices.
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chapters (7)
- 0:00Start
- 0:16android dev summit
- 0:55Latency Sources
- 1:08Multi-Buffered Rendering
- 1:26Front-Buffered Rendering
- 1:50Low-Latency Jetpack Library
- 3:59Best Practices
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