onyxsdk-pen

Artifact:

com.onyx.android.sdk:onyxsdk-pen:1.4.12

Root package:

com.onyx.android.sdk.pen

Last release:

February 2026

Provides hardware-accelerated stylus input for Boox devices. Routes pen events directly from the Wacom digitizer driver, bypassing the Android MotionEvent stack for sub-20 ms latency and native A2 e-ink waveform rendering during stroke.

Classes

• TouchHelper
  • Constants
  • Factory methods
  • Region configuration
  • Lifecycle
  • Enable / disable
  • Stroke appearance
  • Pen / eraser configuration
  • Touch / finger input
  • Refresh and timing
  • Region mode
  • Scroll / host-view interaction
  • Misc
• RawInputCallback
• TouchPointList
  • Constructors
  • Access
  • Mutation
  • Geometric transforms
  • Static helpers
• StrokeStyle
• NeoPenConfig
  • Constants
  • Properties
• MultiViewTouchHelper
• LimitViewInfo

Class	Responsibility	Package
TouchHelper	Primary entry point. Creates and manages the hardware pen input session for a single view: region setup, lifecycle, stroke appearance, render/input toggles.	…sdk.pen
RawInputCallback	Abstract callback. Implement to receive per-point move events, completed stroke lists, eraser events, and pen hover.	…sdk.pen
TouchPointList	Ordered list of TouchPoint objects representing one complete stroke. Supports geometric transforms and serialisation.	…sdk.pen.data
StrokeStyle	Integer constants for the SDK’s built-in stroke styles (pencil, fountain, marker, brush, charcoal, dash).	…sdk.pen.style
NeoPenConfig	Configuration object for the native NeoPen renderer: pen type, colour, width, tilt, and pressure curve.	…sdk.pen
MultiViewTouchHelper	Manages pen input across multiple view regions simultaneously. Routes callbacks to the correct LimitViewInfo by pen position.	…sdk.pen.multiview
LimitViewInfo	Associates a View with a RawInputCallback and its screen-absolute limit rects. One per drawing surface under MultiViewTouchHelper.	…sdk.pen.multiview