universal_bluetooth_classic 1.3.1

Bluetooth Classic & External Accessory for Flutter

1.3.1

• Windows: include <winrt/Windows.Foundation.h> and <winrt/Windows.Foundation.Collections.h> in bluetooth_serial_manager.h so the WinRT coroutine operators (co_await), IClosable::Close, and IVectorView collections compile cleanly with MSVC.

1.3.0

• macOS: keep a requested scan running. IOBluetoothDeviceInquiry only runs for inquiryLength seconds, so the plugin restarts it after a short delay until stopScan is called. Restarts that macOS throttles are retried, and isScanning reports whether a scan was requested, including the restart delay.
• macOS: resolve device names after an inquiry stops. macOS can report a found device with its address as the name; the plugin now issues remote name requests between inquiry rounds and re-emits the device when the name arrives, instead of relying on the system name cache.
• macOS: report each device once per scan and again only when its name changes, instead of re-emitting every device on every inquiry round. Pending name requests are dropped by stopScan, so no discovery events arrive after a scan is stopped.
• macOS: pair with a longer page timeout and up to three attempts. Classic openConnection can return I/O Timeout on the first page after discovery, especially when the device just switched from BLE to classic discoverable mode. Only timeouts are retried, so a rejected pairing or an unreachable device fails immediately instead of prompting again.
• macOS: propagate IOBluetoothDeviceInquiry.start() failures from startScan instead of silently doing nothing.

1.2.0

• Add a generic serial (SPP/RFCOMM) transport on Android, macOS, and Windows. connect takes an optional BluetoothTransport and an optional serviceUuid; bytes are exchanged through the existing send / onData API. The BluetoothTransport enum has hid, spp, and externalAccessory members; omitting transport selects the platform default — HID on Android and macOS, serial (SPP/RFCOMM) on Windows, and an External Accessory session on iOS. Windows gains data-transport support (connect / send / onData / disconnect) through this transport; Bluetooth HID remains unimplemented there, so the default resolves to the serial transport on Windows.
• Connection state events for the serial transport carry the new BluetoothConnectionSource.spp value.
• connect rejects a second concurrent connection to the same device with a StateError instead of overwriting the transport the first one recorded, and disconnect waits for an in-flight connect so the connection it opens is actually closed. closeSdp now throws UnsupportedError on platforms without SDP registration (Windows) instead of reaching an unregistered channel.
• Add an optional bluez dependency lower bound of ^0.9.0 for the Linux implementation.
• Note that adding the optional transport and serviceUuid parameters to connect is a source-breaking change for custom UniversalBluetoothInterface implementations.
• Migrate the Pigeon definitions and generated bindings to Pigeon 29.0.10. Because this plugin targets long-established platform APIs, the host and callback methods use Pigeon's @asyncCallback style: the native side stays callback-based, so no Kotlin coroutines dependency and no Swift concurrency (and no iOS deployment-target bump) are required.
• Replace the static callback fields on UniversalBluetoothInterface with a per-implementation UniversalBluetoothCallbacks registry. The UniversalBluetooth.onXxx setters are unchanged, but a custom UniversalBluetoothInterface implementation must now forward its events to callbacks instead of the removed statics. This is a source-breaking change for custom implementations.
• Give Android and macOS SDP registration their own Pigeon channels (AndroidSdpChannel, MacSdpChannel) so each platform's generated code carries only its own config. The public SdpConfig / MacSdpConfig / AndroidSdpConfig API is unchanged.
• Add a meta dependency, which the Pigeon 29 generated Dart bindings import for their @immutable / @protected / @visibleForTesting annotations.

1.1.0

• Add a unified byte-stream API. connect, send, and the new onData callback exchange bytes with a connected device. The HID sendReport method is replaced by send.
• Add iOS External Accessory data support. connect(protocolString) opens an EASession, send writes to its output stream, and onData receives bytes from its input stream.
• Deliver onData on Android and macOS by forwarding the bytes the connected HID device already sends.
• Fix iOS disconnect hanging until the accessory physically disconnected. It now closes the session and completes immediately, and closes every open session when the protocol string is omitted.
• Fix iOS External Accessory connect/disconnect events never firing. The Pigeon EAAccessory struct shadowed the framework class, so the notification handlers always failed to cast and returned early.

1.0.0

• Fix showBluetoothAccessoryPicker not presenting on iOS apps that use the UIScene lifecycle (iOS 13–26.4). The plugin now presents the External Accessory picker from the active scene.
• Fix the iOS example app's scene manifest key so it runs under the UIScene lifecycle.

0.2.0

• Replace the iOS-only closeEASession API with the unified disconnect API. The identifier is optional for iOS External Accessory sessions.
• Replace the iOS-only accessoryConnected and accessoryDisconnected callbacks with typed, cross-platform BluetoothConnectionEvent values from onConnectionStateChanged.
• Add iOS External Accessory and Linux BlueZ connection events.

0.1.0

• Initial release as universal_bluetooth.