Description

When ADB registers a wireless device as adb-SERIAL (2)._adb-tls-connect._tcp (space before (2) due to mDNS name conflict), Flutter's parser truncates the serial at the first space. The device becomes unreachable and is shown as "Android null (API null) (unsupported)".

Root cause

Flutter parses adb devices -l output with this regex (android_device_discovery.dart):

static final _kDeviceRegex = RegExp(r'^(\S+)\s+(\S+)(.*)');

\S+ stops at the first whitespace. For the line:

adb-ZY22MGW35T-Z3uXXq (2)._adb-tls-connect._tcp device product:vantage_ge ...

The regex parses:

• Group 1 (serial): adb-ZY22MGW35T-Z3uXXq - truncated, wrong
• Group 2 (state): (2)._adb-tls-connect._tcp - not a valid state

Flutter then calls adb -s adb-ZY22MGW35T-Z3uXXq - ADB has no transport by that name and returns "device not found".

Steps to reproduce

1. Enable Wireless Debugging on Android device.
2. Toggle Wireless Debugging off / on (or adb kill-server && adb start-server) - Android NSD creates a new port while the old mDNS record hasn't expired, triggering ADB's name conflict resolution.
3. adb devices -l now shows:

   adb-ZY22MGW35T-Z3uXXq (2)._adb-tls-connect._tcp    device product:...
   

4. Run flutter devices or flutter run.

Actual behavior

motorola (mobile) • adb-ZY22MGW35T-Z3uXXq • unsupported • Android null (API null)

Error: adb.exe: device 'adb-ZY22MGW35T-Z3uXXq' not found

Expected behavior

Device is detected normally and flutter run succeeds.

Proposed fix

Split on known ADB state keywords instead of \S+:

// Before:
static final _kDeviceRegex = RegExp(r'^(\S+)\s+(\S+)(.*)');

// After:
static final _kDeviceRegex = RegExp(
  r'^(.*?)\s+(device|offline|unauthorized|no permissions|bootloader|recovery|sideload|connecting|host)(.*)',
);

(.*?) is lazy - captures the shortest prefix before the first known state keyword, correctly handling serials with spaces. All existing cases (USB serials, emulators, no permissions) continue to work.

A test case is also missing for this scenario and should be added to android_device_discovery_test.dart:

testWithoutContext('parses mDNS serial with space from name conflict suffix', () async {
  // adb devices -l output:
  // adb-ZY22MGW35T-Z3uXXq (2)._adb-tls-connect._tcp device product:vantage_ge ...
  final devices = await androidDevices.pollingGetDevices();
  expect(devices.first.id, 'adb-ZY22MGW35T-Z3uXXq (2)._adb-tls-connect._tcp');
  expect(devices.first.connectionInterface, DeviceConnectionInterface.wireless);
});

Environment

• Flutter: 3.44.0 (channel stable)
• Dart: 3.12.0
• ADB: 37.0.0-14910828 (latest)
• OS: Windows 11 Pro 10.0.26120
• Device: Motorola, Android 16 (API 36)
• Connection: Wireless Debugging (_adb-tls-connect._tcp)