Android High-Performance Custom View

To achieve 60fps in Android custom View rendering, you must eliminate memory allocations inside the onDraw method to prevent garbage collection pauses. Additionally, you should pre-compute complex paths in onSizeChanged for reuse during drawing operations.

Android custom View animation stutters when expensive graphical objects like shaders are recreated unnecessarily during the drawing loop. You can fix this by implementing conditional shader updates to only refresh these objects when view dimensions or states actually change.

Optimize text drawing in a custom View by implementing text bounds caching to store measurement results. This prevents repeated calculations during onDraw, significantly speeding up complex drawing logic and maintaining a responsive user interface.

Use hardware layer acceleration for Android custom Views when building animation-heavy UI components like intricate clock faces or complex charting libraries. This offloads rendering operations to the GPU, ensuring the UI remains fluid even under heavy load.

A zero-allocation onDraw method completely prevents object creation within the drawing loop to avoid garbage collection pauses. By reusing pre-computed paths and cached objects, it eliminates memory churn and maintains smooth 60fps rendering performance.