blob: 574114f07c103550981a962d50f52c36c58f2853 [file] [log] [blame]
// Copyright 2016 The Vanadium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
import 'dart:async';
import 'dart:convert';
import 'dart:io';
import 'key_provider.dart';
import 'android.dart';
class Device implements ClusterKeyProvider {
Map<String, String> properties;
String get id => properties['device-id'];
String get modelName => properties['model-name'];
String get screenSize => properties['screen-size'];
String clusterKey() {
return id;
String toString()
=> '<id: $id, model-name: $modelName, screen-size: $screenSize>';
Future<List<Device>> getDevices() async {
List<Device> devices = <Device>[];
await _getDeviceIDs().then((List<String> ids) async {
for(String id in ids) {
devices.add(await _collectDeviceProps(id));
return devices;
/// Run "flutter devices -v" to collect device ids from the output
Future<List<String>> _getDeviceIDs() async {
List<String> deviceIDs = <String>[];
Process process = await Process.start('flutter', ['devices', '-v']);
Stream lineStream = process.stdout
.transform(new Utf8Decoder())
.transform(new LineSplitter());
bool startReading = false;
RegExp startPattern = new RegExp(r'List of devices attached');
RegExp deviceIDPattern = new RegExp(r'\s+(\w+)\s+.*');
RegExp stopPattern = new RegExp(r'\d+ connected devices?|No devices detected');
await for (var line in lineStream) {
if (!startReading && startPattern.hasMatch(line.toString())) {
startReading = true;
if (stopPattern.hasMatch(line.toString()))
if (startReading) {
Match idMatch = deviceIDPattern.firstMatch(line.toString());
if (idMatch != null) {
String deviceID =;
return deviceIDs;
Future<Device> _collectDeviceProps(String deviceID) async {
return new Device(
properties: <String, String> {
'device-id': deviceID,
'model-name': await getProperty(deviceID, 'ro.product.model'),
'screen-size': await getScreenSize(deviceID)