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CHANGELOG

Version 4.6.0

Features

New: Color display support

  • Added Glasses.isColorCapable() — detects whether connected glasses have a color display (MDP08) vs. grey-level (MDP05), based on hardware version.
  • Added ImgSaveFormat.RG_COLOR_8BPP — new image save format for 8bpp RG (red-green) color images, color glasses only.
  • Added Glasses.imgSave(byte id, ImageData imgData, ImgSaveFormat format) — save a pre-encoded image directly, without requiring a Bitmap.
  • Added Glasses.grayscale(byte level) and Glasses.color(byte value) — color() now sends the correct red-green color command (0x3D) instead of reusing the grey-level command; text can now be drawn in color via the new txtColor command (automatically used by txt() when isColorCapable() is true).
  • ImageConverter.getCmdCompress4BppHeatshrink() is now public, enabling custom image-encoding pipelines outside the SDK.

Breaking changes

  • Glasses.isWriteWithResponse(boolean) renamed to Glasses.setWriteWithResponse(boolean). Update any calls to the old method name.
  • Command IDs for grayscale/color/txtColor were remapped to match the current firmware protocol (grayscale=0x30, color=0x3D, txtColor=0x3E) — no app-level action needed unless you referenced these IDs directly.

Fixes

  • Fixed BLE notification reassembly: a single characteristic-changed event containing multiple back-to-back commands is now parsed correctly instead of stalling on the first one.
  • Fixed a thread leak in the flow-control repair timer (ScheduledExecutorService is now properly shut down after use).
  • Write batching (unstackWriteRxCharacteristicLoop) now tracks write type per pending write, so retried/rolled-back batches preserve their original with/without-response setting.

Internal

Refactored the RX-characteristic write-batching logic into smaller, testable pieces (collectBatch, buildPayload, writeToGatt, handleWriteFailure). Minor logging cleanup in UpdateGlassesTask (onApiFail, onApiJSONException). Removed dead code / unused imports across several files.

Version 4.5.9

Fixes

  • Fix fw version comparison

Version 4.5.7

Fixes

  • Fix fw extra version parsing

Version 4.5.6

New

  • Added new firmware support for future devices
  • Updated Android SDK to version 35 to comply with Play Store requirements

Version 4.5.5

Fixes

  • UI freeze during Cfg update

Version 4.5.4

New

  • SDK init with simplified parameters

Fixes

  • Increase flow control overflow timer
  • UI freeze & crash during infinite commands rollback
  • FW update issue

Features

  • New commands : animDisplay, animDelete and animClear

Version 4.5.2

Fixes

  • Block cfg update if battery level < 10%
  • Add getter for context & broadcasterceiver

Version 4.5.1

Fixes

  • Recursivity issue
  • Fix api url

Version 4.5.0

New features

  • layoutClearAndDisplayExtended & layoutClearAndDisplay : now accept ExtraCmd to modify existing layout without saving the modification
  • layoutParameters : add subCommandAnim & subCommandPolyline

Fixes

  • layoutParameters : fix subCommandText

Version 4.4.3

Fixes

  • Command Stacking

Version 4.4.2

New features

  • holdFlush : allows stacking multiple graphic operations and displaying them simultaneously without screen flickering.

Fixes

  • image conversion to gray level

Version 4.4.1

Fixes

  • Remove recursive call to avoid stackoverflow

Version 4.4.0

Breaking changes

  • Use an anonymous function to accept update

New features

  • New commands :
    • layoutClearAndDisplayExtended : clear a layout before displaying it at a position
    • layoutClearAndDisplay : clear a layout before displaying it
    • layoutClearExtended : clear a layout at a position
    • pageClearAndDisplay : clear a page before displaying it
    • imgSave : save image in new format
    • streamImg : display an image without saving it
    • polyline : choose the thickness of your polyline

Version 4.2.5

New features

  • Auto reconnect on BLE activation
  • Fine grained configuration update
  • Set default configuration on connection
  • Display update ongoing layout on configuration update

Fixes

  • Clear glasses screen before and after configuration update
  • Ensure glasses empty cmd stack on connection
    • Workaround before FW patch
    • Trigger a Flow Control CMD ERROR before first command
    • Start configuration update on this Flow Control CMD ERROR
  • minor linter fixes

Version 4.2.4.1

Fixes

  • Api path for retrieving firmware and configuration
  • NullPointerException in web request

Version 4.2.4

New features

  • Add a callback in the SDK init for triggering the glasses update.

Changes

  • Forbid glasses usage if the token is not valid
  • Disable glasses update if battery under 10%

Fixes

  • fix inconsistent connection state while updating

Version 4.2.3

New features

  • add a failure callback for updating errors
  • add an up to date state for updates
  • Allow cancelling connection
  • Add a serialized glasses object allowing reconnecting without scanning

Changes

  • make update progress a double
  • update dependencies
  • On connection lost, directly trigger the disconnected glasses callback

Version 4.2.2

New features

  • Include firmware update
    • get latest firmware from repository
  • Include configuration update
    • get latest configuration from repository

Fixes

  • fix bad types.
  • fix pages command id & byte typing
  • fix version check for compatibility
  • fix blocking api unavailability
  • fix config update progress
  • fix suota synchronization
  • fix writting on characteristics twice
  • fix BLE scan permission
  • fix command unstacking
  • fix flow control after 1000ms
  • fix disconnect on disconnected

Version 4.0.0

Add

  • Initial import of the SDK compatible with the firmware 4.0.0