xprinter_flutter 0.2.0

Direct Android printing for XPrinter label and POS printers over Bluetooth, TCP/IP, and USB with TSPL, ZPL, CPCL, and ESC/POS support.

0.2.0 (unreleased, pending hardware validation)

• Add direct printPdf(), printImage(), and printRgbaImage() APIs.
• Add configurable bitmap rotation, fit, threshold, bit polarity, copies, and a tested XP-365B 75x100 mm preset.
• Move RGBA-to-TSPL conversion to a background isolate.
• Fix Android 14+ USB mutable PendingIntent restriction.
• Serialize disconnect/write operations and invalidate connections after write failures.
• Request only required Bluetooth permissions for paired-device connection.
• Add in-process printer reconnect API (never auto-replays print data).
• Default diagnostic test prints to stored media settings for XP-365B.
• Fix stale example widget test and remove redundant Android manifest permissions.
• Add encoder tests and Flutter CI checks.

0.1.2

• Added useStoredPrinterSettings for TSPL labels.
• In stored-settings mode, print jobs do not overwrite media or printer configuration.
• Updated the XP-365B example to use the proven stored-settings path after diagnostic testing.
• Kept the isolated diagnostic tests for identifying media-command related ERROR light issues.

0.1.1

• Added TSPL gap sensor calibration with calibrateGapSensor().
• Updated the XP-365B example with configurable label width, height, and gap.
• Simplified the TSPL diagnostic label to avoid unrelated QR/barcode variables while troubleshooting media errors.
• Added guidance for post-print ERROR light issues caused by label/gap sensor mismatch.

0.1.0

• Initial Android release.
• Direct Bluetooth SPP printing.
• Bluetooth paired-device listing and active discovery.
• Direct TCP/IP printing with port 9100 default.
• Direct USB bulk printing with Android USB permission handling.
• Structured TSPL labels with text, barcode, QR code, box, bar, copies, label size and gap controls.
• Raw TSPL, ZPL, CPCL and arbitrary byte command support.
• Basic ESC/POS text and QR helpers.
• Connection status and connection event stream.
• Android 12+ Bluetooth support using SCAN/CONNECT permissions without location permission.
• No external XPrinter app and no vendor SDK binary dependency.