flutter run:下载依赖并安装APK
flutter install：安装apk
flutter pub get: 下载依赖
flutter doctor -v： 验证flutter环境配置
flutter开发环境配置
linux环境，可以使用下面的脚本自动配置开发环境(在ubuntu 16.04运行成功）：
#使用flutter中国的镜像
export PUB_HOSTED_URL=https://pub.flutter-io.cn
export FLUTTER_STORAGE_BASE_URL=https://storage.flutter-io.cn
export ANDROID_HOME="/opt/android-sdk" \
export PATH="/opt/android-sdk/tools/bin:/opt/flutter/bin:/opt/flutter/bin/cache/dart-sdk/bin:$PATH"
#安装基本依赖
apt-get update \
&& apt-get -y install --no-install-recommends curl git lib32stdc++6 openjdk-8-jdk-headless unzip \
&& apt-get -y install lcov \
&& apt-get --purge autoremove \
&& apt-get autoclean \
&& rm -rf /var/lib/apt/lists/*
#下载flutter
git clone -b master https://github.com/flutter/flutter.git /opt/flutter
#下载android sdk
curl -O https://dl.google.com/android/repository/sdk-tools-linux-4333796.zip \
&& mkdir /opt/android-sdk \
&& unzip sdk-tools-linux-4333796.zip -d /opt/android-sdk \
&& rm sdk-tools-linux-4333796.zip
#安装android sdk 特定版本
mkdir ~/.android \
&& echo 'count=0' > ~/.android/repositories.cfg \
&& yes | sdkmanager --licenses \
&& sdkmanager "tools" "build-tools;28.0.3" "platforms;android-28" "platform-tools" \
&& yes | sdkmanager --licenses \
&& flutter doctor -v
flutter doctor -v最后的输出有三个错误：
[✗] Chrome - develop for the web (Cannot find chrome executable at google-chrome)
! CHROME_EXECUTABLE not set
[✗] Linux toolchain - develop for Linux desktop
✗ clang++ is not installed
✗ make is not installed
[!] Android Studio (not installed)
• Android Studio not found; download from https://developer.android.com/studio/index.html
(or visit https://flutter.dev/setup/#android-setup for detailed instructions).
安装chrome
#ddes
apt-get update
apt-get install apt-transport-https wget curl -y
wget http://www.linuxidc.com/files/repo/google-chrome.list -P /etc/apt/sources.list.d/
wget -q -O - https://dl.google.com/linux/linux_signing_key.pub | apt-key add -
set -x && apt-get update \
&& apt-get install -y \
xvfb \
google-chrome-stable
安装make和clang
$apt install clang-3.5
$apt install build-essential
$ln -s /usr/bin/clang-3.5 /usr/bin/clang++
再次运行flutter doctor -v可以看到原来的三个错误已经消失。
This package referenced a Flutter repository via the .packages file that is no longer available，删掉.package文件重新生成即可：
root@ubuntu:/home/pilot/flutter_integration_test# flutter run
+ flutter run
Woah! You appear to be trying to run flutter as root.
We strongly recommend running the flutter tool without superuser privileges.
/
Warning! This package referenced a Flutter repository via the .packages file that is no longer available. The repository from which the 'flutter' tool is currently executing will be used instead.
running Flutter tool: /opt/flutter
previous reference : /D:/flutter/flutter
This can happen if you deleted or moved your copy of the Flutter repository, or if it was on a volume that is no longer mounted or has been mounted at a different location. Please check your system path
to verify that you are running the expected version (run 'flutter --version' to see which flutter is on your path).
No supported devices connected.
root@ubuntu:/home/pilot/flutter_integration_test# vim .packages
+ vim .packages
root@ubuntu:/home/pilot/flutter_integration_test# cp .packages .packages2
+ cp .packages .packages2
root@ubuntu:/home/pilot/flutter_integration_test# rm -rf .packages
+ rm -rf .packages
root@ubuntu:/home/pilot/flutter_integration_test# flutter run
+ flutter run
Woah! You appear to be trying to run flutter as root.
We strongly recommend running the flutter tool without superuser privileges.
dockerfile
root@ubuntu:~/flutter# cat Dockerfile
FROM docker.jiuxia.com/flutter:2.0
RUN apt-get update
RUN apt-get install -y pulseaudio
RUN apt-get install -y libglu1
RUN /opt/android-sdk/tools/bin/sdkmanager --install emulator
使用Appium
flutter的源代码部分：
@override
Widget build(BuildContext context)
{
return new Material(
color: Colors.blue,
child: new InkWell(
child: new Column(
mainAxisAlignment: MainAxisAlignment.center,
children: [
new Text("Hello World!", style: new TextStyle(color: Colors.white, fontSize: 30.0),),
],
)
),
);
}
}
使用ui automater viewer看到的效果：
image.png
flutter无法添加自定义属性字段，只能使用xpath定位界面上的控件。
appium脚本尝试获取界面上的"hello world”
# coding=utf-8
from appium import webdriver
import unittest
import time
class TestFluter(unittest.TestCase):
def setUp(self):
desired_caps = {
'platformName': 'Android',
'platformVersion': '8.0.0',
'deviceName': 'A5RNW18316011440',
'appPackage': 'com.example.helloworld',
'appActivity': '.MainActivity',
'automationName': 'Appium',
'unicodeKeyboard': 'True',
'resetKeyboard': 'True',
}
self.driver = webdriver.Remote('http://127.0.0.1:4723/wd/hub', desired_caps)
def tearDown(self):
self.driver.quit()
def test_plus(self):
time.sleep(30)
print('==================')
t1 = self.driver.find_element_by_xpath("//*[@text='Hello World!']")
print(t1.text)
print('+++++++++++++++++++')
time.sleep(10)
if __name__ == '__main__':
si = unittest.TestLoader().loadTestsFromTestCase(TesXiaomiCalc)
unittest.TextTestRunner(verbosity=2).run(si)
使用Flutter自带的测试框架
参考 https://flutter.dev/docs/cookbook/testing/integration/introduction
目录结构
flutter_integration_test/
lib/
main.dart
test_driver/
app.dart
app_test.dart
pubspec.yaml
name: flutter_integration_test
description: A new Flutter project.
version: 1.0.0+1
environment:
sdk: ">=2.1.0 <3.0.0"
dependencies:
flutter:
sdk: flutter
# The following adds the Cupertino Icons font to your application.
# Use with the CupertinoIcons class for iOS style icons.
cupertino_icons: ^0.1.2
dev_dependencies:
flutter_test:
sdk: flutter
flutter_driver:
sdk: flutter
test: any
flutter:
uses-material-design: true
main.dart
import 'package:flutter/material.dart';
void main() => runApp(MyApp());
class MyApp extends StatelessWidget {
@override
Widget build(BuildContext context) {
return MaterialApp(
title: 'Counter App',
home: MyHomePage(title: 'Counter App Home Page'),
);
}
}
class MyHomePage extends StatefulWidget {
MyHomePage({Key key, this.title}) : super(key: key);
final String title;
@override
_MyHomePageState createState() => _MyHomePageState();
}
class _MyHomePageState extends State {
int _counter = 0;
void _incrementCounter() {
setState(() {
_counter++;
});
}
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: Text(widget.title),
),
body: Center(
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: [
Text(
'You have pushed the button this many times:',
),
Text(
'$_counter',
// Provide a Key to this specific Text widget. This allows
// identifing the widget from inside the test suite,
// and reading the text.
key: Key('counter'),
style: Theme.of(context).textTheme.display1,
),
],
),
),
floatingActionButton: FloatingActionButton(
// Provide a Key to this button. This allows finding this
// specific button inside the test suite, and tapping it.
key: Key('increment'),
onPressed: _incrementCounter,
tooltip: 'Increment',
child: Icon(Icons.add),
),
);
}
}
app.dart
import 'package:flutter_driver/driver_extension.dart';
import 'package:flutter_integration_test/main.dart' as app;
void main() {
// This line enables the extension.
enableFlutterDriverExtension();
// Call the `main()` function of the app, or call `runApp` with
// any widget you are interested in testing.
app.main();
}
所有的测试脚本必须以_test结尾才能够被识别。脚本里识别控件是通过添加的key来实现的：
app_test.dart
// Imports the Flutter Driver API.
import 'package:flutter_driver/flutter_driver.dart';
import 'package:test/test.dart';
import 'dart:io';
void main() {
group('Counter App', () {
// First, define the Finders and use them to locate widgets from the
// test suite. Note: the Strings provided to the `byValueKey` method must
// be the same as the Strings we used for the Keys in step 1.
final counterTextFinder = find.byValueKey('counter');
final buttonFinder = find.byValueKey('increment');
FlutterDriver driver;
// Connect to the Flutter driver before running any tests.
setUpAll(() async {
driver = await FlutterDriver.connect();
});
// Close the connection to the driver after the tests have completed.
tearDownAll(() async {
if (driver != null) {
driver.close();
}
});
test('starts at 0', () async {
// Use the `driver.getText` method to verify the counter starts at 0.
sleep(const Duration(seconds: 5));
expect(await driver.getText(counterTextFinder), "0");
});
test('increments the counter', () async {
// First, tap the button.
await driver.tap(buttonFinder);
sleep(const Duration(seconds: 5));
// Then, verify the counter text is incremented by 1.
expect(await driver.getText(counterTextFinder), "1");
});
});
}
执行脚本
$ flutter drive --target=test_driver/app.dart
Running "flutter packages get" in flutter_integration_test... 0.5s
Using device FLA AL20.
Starting application: test_driver/app.dart
Initializing gradle... 0.6s
Resolving dependencies... 2.4s
Installing build\app\outputs\apk\app.apk... 4.3s
Running Gradle task 'assembleDebug'... 1.9s
Built build\app\outputs\apk\debug\app-debug.apk.
I/flutter ( 9874): Observatory listening on http://127.0.0.1:41353/
00:00 +0: Counter App (setUpAll)
[info ] FlutterDriver: Connecting to Flutter application at http://127.0.0.1:52914/
[trace] FlutterDriver: Isolate found with number: 880303057
[trace] FlutterDriver: Isolate is paused at start.
[trace] FlutterDriver: Attempting to resume isolate
[trace] FlutterDriver: Waiting for service extension
00:02 +0: Counter App starts at 0
[info ] FlutterDriver: Connected to Flutter application.
00:03 +1: Counter App increments the counter
00:03 +2: Counter App (tearDownAll)
00:03 +2: All tests passed!
Stopping application instance.
使用夜神模拟器安卓虚拟机
使用夜神模拟器的安卓虚拟机，执行上面的flutter测试脚本，可以正常运行并且得到同样的测试结果：
$ flutter drive --target=test_driver/app.dart
Using device google Pixel 2.
Starting application: test_driver/app.dart
Initializing gradle... 0.7s
Resolving dependencies... 2.6s
Installing build\app\outputs\apk\app.apk... 3.9s
Running Gradle task 'assembleDebug'... 2.0s
Built build\app\outputs\apk\debug\app-debug.apk.
I/flutter ( 3596): Observatory listening on http://127.0.0.1:43430/
00:00 +0: Counter App (setUpAll)
[info ] FlutterDriver: Connecting to Flutter application at http://127.0.0.1:54495/
[trace] FlutterDriver: Isolate found with number: 241353197
[trace] FlutterDriver: Isolate is paused at start.
[trace] FlutterDriver: Attempting to resume isolate
[trace] FlutterDriver: Waiting for service extension
[info ] FlutterDriver: Connected to Flutter application.
00:00 +0: Counter App starts at 0
00:05 +1: Counter App increments the counter
00:10 +2: Counter App (tearDownAll)
00:10 +2: All tests passed!
Stopping application instance.
使用vmware+ubuntu+真机执行测试脚本
在windows上安装vmware+ubuntu，在虚拟机里执行flutter UI测试脚本，可以找到外面的USB连着的手机，但很不稳定，有时候能找到有时候提示找不到，能找到的时候执行自动化脚本也会失败，提示说tap时间过长或者FlutterDriver: It is taking an unusually long time to connect to the VM
结论：有时候能成功，有时候会失败，有时候会HANG在那里提示说VM长时间没反应。
如果失败时，可以使用flutter -v drive --target=test_driver/app.dart查看详细的信息输出
使用windows+android studio自带的模拟器执行测试脚本
现在android sdk里已经不再包含图形界面的sdk manager了，图形界面的SDK manager集成到了android studio里，可以在tools菜单里找到。
通过android studio创建好安卓模拟器，启动模拟器。如果启动模拟器后在adb devices看到的模拟器是unauthorized状态，一般可以通过重启adb服务器来解决，如果还不行，可以通过模拟器的Wipe Data清除数据后再次尝试。默认情况下，打开模拟器，使用adb devices就能查看到online状态的模拟器。
启动模拟器并且状态是online后，执行上面的flutter自动化测试脚本，可以正常运行并输出结果。
使用无界面模式运行flutter UI自动化测试
#android命令已经过时，官方建议使用sdkmanager.bat
$ ./android.bat list target
**************************************************************************
The "android" command is deprecated.
For manual SDK, AVD, and project management, please use Android Studio.
For command-line tools, use tools\bin\sdkmanager.bat
and tools\bin\avdmanager.bat
**************************************************************************
Invoking "C:\Users\Administrator\AppData\Local\Android\Sdk\tools\bin\avdmanager" list target
Available Android targets:==============] 100% Fetch remote repository...
----------
id: 1 or "android-27"
Name: Android API 27
Type: Platform
API level: 27
Revision: 3
----------
id: 2 or "android-28"
Name: Android API 28
Type: Platform
API level: 28
Revision: 6
#使用sdkmananger查看已安装的和未安装的
$ ./sdkmanager.bat --list
Warning: File C:\Users\Administrator\.android\repositories.cfg could not be loaded.
Installed packages:=====================] 100% Computing updates...
Path | Version | Description | Location
------- | ------- | ------- | -------
build-tools;27.0.3 | 27.0.3 | Android SDK Build-Tools 27.0.3 | build-tools\27.0.3\
build-tools;28.0.3 | 28.0.3 | Android SDK Build-Tools 28.0.3 | build-tools\28.0.3\
emulator | 28.0.22 | Android Emulator | emulator\
extras;android;m2repository | 47.0.0 | Android Support Repository | extras\android\m2repository\
extras;google;m2repository | 58 | Google Repository | extras\google\m2repository\
extras;intel;Hardware_Accelerated_Execution_Manager | 7.3.2 | Intel x86 Emulator Accelerator (HAXM installer) | extras\intel\Hardware_Accelerated_Execution_Manager\
extras;m2repository;com;android;support;constraint;constraint-layout-solver;1.0.2 | 1 | Solver for ConstraintLayout 1.0.2 | extras\m2repository\com\android\support\constraint\constraint-layout-solver\1.0.2\
extras;m2repository;com;android;support;constraint;constraint-layout;1.0.2 | 1 | ConstraintLayout for Android 1.0.2 | extras\m2repository\com\android\support\constraint\constraint-layout\1.0.2\
patcher;v4 | 1 | SDK Patch Applier v4 | patcher\v4\
platform-tools | 28.0.1 | Android SDK Platform-Tools | platform-tools\
platforms;android-27 | 3 | Android SDK Platform 27 | platforms\android-27\
platforms;android-28 | 6 | Android SDK Platform 28 | platforms\android-28\
sources;android-28 | 1 | Sources for Android 28 | sources\android-28\
system-images;android-25;google_apis;armeabi-v7a | 15 | Google APIs ARM EABI v7a System Image | system-images\android-25\google_apis\armeabi-v7a\
system-images;android-28;google_apis_playstore;x86 | 8 | Google Play Intel x86 Atom System Image | system-images\android-28\google_apis_playstore\x86\
tools | 26.1.1 | Android SDK Tools | tools\
#命令行创建android模拟器. -k参数后面跟的是镜像等信息，如果不知道现在又哪些镜像，可以随便写一个，它会输出目前已有镜像，也可以使用上面的sdkmananger --list来查看；windows上面，android.bat位于C:\Users\Administrator\AppData\Local\Android\Sdk\tools
#使用下面的命令创建模拟器，使用默认设置即可。创建好后执行flutter自动化测试脚本，可以看到可以正常执行成功;尽量不要使用带Google APIs字样的镜像，否则命令行启动模拟器的时候会报 PANIC: Missing emulator engine program for 'x86' CPU.
$android.bat create avd -n myEmulator -k system-images;android-28;default;x86_64
$ ./android.bat list avd
Name: Galaxy_Nexus_API_25
Device: Galaxy Nexus (Google)
Path: C:\Users\Administrator\.android\avd\Galaxy_Nexus_API_25.avd
Target: Google APIs (Google Inc.)
Based on: Android 7.1.1 (Nougat) Tag/ABI: google_apis/armeabi-v7a
Skin: galaxy_nexus
Sdcard: 512M
---------
Name: myEmulator
Path: C:\Users\Administrator\.android\avd\myEmulator.avd
Target: Default Android System Image
Based on: Android API 28 Tag/ABI: default/x86_64
The following Android Virtual Devices could not be loaded:
Name: crazyit
Path: C:\Users\Administrator\.android\avd\crazyit.avd
Error: Missing system image for Google Play x86 crazyit.'
---------
Name: Nexus_5X_API_28
Path: C:\Users\Administrator\.android\avd\Nexus_5X_API_28.avd
Error: Missing system image for Google Play x86 Nexus_5X_API_28.'
#命令行启动模拟器，并制定内存大小，不指定的话使用默认大小；启动模拟器后执行FLUTTER自动化脚本，可以正常执行
$emulator -avd crazyit -memory 512 &
#如果需要命令行安装，可以参考下面的方式
#首先通过--list查看可以安装的镜像，比如看到其中有system-images;android-28;default;x86
root@ubuntu:/opt/android-sdk/tools/bin# ./sdkmanager --list
system-images;android-28;default;x86 | 4 | Intel x86 Atom System Image
#安装
root@ubuntu:/opt/android-sdk/tools/bin# ./sdkmanager --install "system-images;android-28;default;x86"
[=======================================] 100% Unzipping... x86/build.prop
#确认已经安装好
root@ubuntu:/opt/android-sdk/tools/bin# ./sdkmanager --list
Installed packages:=====================] 100% Computing updates...
Path | Version | Description | Location
------- | ------- | ------- | -------
build-tools;28.0.3 | 28.0.3 | Android SDK Build-Tools 28.0.3 | build-tools/28.0.3/
platform-tools | 29.0.1 | Android SDK Platform-Tools | platform-tools/
platforms;android-28 | 6 | Android SDK Platform 28 | platforms/android-28/
system-images;android-28;default;x86 | 4 | Intel x86 Atom System Image | system-images/android-28/default/x86/
tools | 26.1.1 | Android SDK Tools 26.1.1 | tools/
#接下来就可以使用刚才下载的镜像创建emulator了
root@ubuntu:/opt/android-sdk/tools/bin# ../android create avd -n myEmulator3 -k "system-images;android-21;default;x86"
#尝试启动，但报错
root@ubuntu:/opt/android-sdk/tools# ./emulator @myEmulator3
[139736297248576]:ERROR:android/android-emu/android/qt/qt_setup.cpp:28:Qt library not found at ../emulator/lib64/qt/lib
Could not launch '/opt/android-sdk/tools/../emulator/qemu/linux-x86_64/qemu-system-i386': No such file or directory
root@ubuntu:/opt/android-sdk/tools# cd bin
root@ubuntu:/opt/android-sdk/tools/bin# ls
apkanalyzer archquery avdmanager jobb lint monkeyrunner screenshot2 sdkmanager uiautomatorviewer
#查找emulator并安装
root@ubuntu:/opt/android-sdk/tools/bin# ./sdkmanager --list| grep emulator
emulator | 29.0.11 | Android Emulator
extras;google;auto | 1.1 | Android Auto Desktop Head Unit emulator
root@ubuntu:/opt/android-sdk/tools/bin# ./sdkmanager --install emulator
[=======================================] 100% Unzipping... emulator/NOTICE.txt
root@ubuntu:/opt/android-sdk/tools/bin# ls ../../
build-tools/ emulator/ .knownPackages licenses/ patcher/ platforms/ platform-tools/ system-images/ tools/
root@ubuntu:/opt/android-sdk/tools/bin# ls ../../emulator/
android-info.txt emulator64-crash-service goldfish-webrtc-bridge mksdcard qemu/ source.properties
bin64/ emulator-check lib/ NOTICE.txt qemu-img
emulator emulator-headless lib64/ package.xml resources/
root@ubuntu:/opt/android-sdk/tools/bin# ls ../../emulator/
android-info.txt emulator emulator-check goldfish-webrtc-bridge lib64 NOTICE.txt qemu resources
bin64 emulator64-crash-service emulator-headless lib
root@ubuntu:/opt/android-sdk/tools# ./emulator @myEmulator3
/opt/android-sdk/tools/../emulator/qemu/linux-x86_64/qemu-system-i386: error while loading shared libraries: libpulse.so.0: cannot open shared object file: No such file or directory
root@ubuntu:/opt/android-sdk/tools# ./emulator @myEmulator2
/opt/android-sdk/tools/../emulator/qemu/linux-x86_64/qemu-system-x86_64: error while loading shared libraries: libpulse.so.0: cannot open shared object file: No such file or directory
root@ubuntu:/opt/android-sdk/tools# apt-get install libpulse0:i386 pulseaudio
root@ubuntu:/opt/android-sdk/tools# ./emulator @myEmulator3
MobaXterm X11 proxy: Unsupported authorisation protocol
emulator: WARNING: encryption is off
emulator: ERROR: x86 emulation currently requires hardware acceleration!
Please ensure KVM is properly installed and usable.
CPU acceleration status: KVM requires a CPU that supports vmx or svm
More info on configuring VM acceleration on Linux:
https://developer.android.com/studio/run/emulator-acceleration#vm-linux
General information on acceleration: https://developer.android.com/studio/run/emulator-acceleration.
#打开虚拟机设置里的虚拟相关设置后再次尝试
root@ubuntu:/opt/android-sdk/tools#./emulator @myEmulator3 -no-skin -no-audio -no-window
在虚拟机（无图形界面的ubuntu 16.04）里启动模拟器后（此时的模拟器是没有任何界面的），可以用adb devices查看已经启动的emulator. 执行flutter的自动化测试脚本，可以看到可以正常运行并输出结果。
Troubleshooting
问题一：MobaXterm X11 proxy: Unsupported authorisation protocol
使用mobaxterm登录到虚拟机启动emulator时会报这个错，可以直接登录虚拟机不使用moba就不会报这个错了。尝试参考网上的方法解决mobaxterm这个问题，未果。
问题二：Run Android emulator without GUI (headless mode)
Emulator 28.1.8 is now available in the Canary and Dev channels. 自带的命令行工具分为emulator和emulator-headless， 其中的emulator-headless可以直接支持headless mode.
#对于Emulator 28之前的版本，可以使用如下方式启动不带界面的emulator
$emulator @myEmulator3 -no-skin -no-audio -no-window
#对于Emulator 28之后的版本，可以使用如下方式启动不带界面的emulator
$....
问题三：PANIC: Missing emulator engine program for 'x86' CPU
解决方法一：不要使用带有google api字样的镜像
解决方法二：尝试使用x86_64而不是x86的镜像
问题四：error while loading shared libraries: libpulse.so.0: cannot open shared object file
$apt-get install -y libpulse0:i386 pulseaudio
问题五：emulator: ERROR: x86_64 emulation currently requires hardware acceleration
先看一下如果有hardware acceleration的情形
root@ubuntu:/opt/android-sdk/emulator# kvm-ok
INFO: /dev/kvm exists
KVM acceleration can be used
root@ubuntu:/opt/android-sdk/emulator# ./emulator -accel-check
accel:
0
KVM (version 12) is installed and usable.
accel
#检查是否支持hardware virtualization： egrep -c '(vmx|svm)' /proc/cpuinfo
root@ubuntu:/opt/android-sdk/emulator# ls /dev/kvm
/dev/kvm
root@ubuntu:/opt/android-sdk/emulator# cat /proc/cpuinfo
processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 60
model name : Intel(R) Core(TM) i7-4790K CPU @ 4.00GHz
stepping : 3
microcode : 0x25
cpu MHz : 4000.006
cache size : 8192 KB
physical id : 0
siblings : 1
core id : 0
cpu cores : 1
apicid : 0
initial apicid : 0
fpu : yes
fpu_exception : yes
cpuid level : 13
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ss syscall nx pdpe1gb rdtscp lm constant_tsc arch_perfmon nopl xtopology tsc_reliable nonstop_tsc eagerfpu pni pclmulqdq vmx ssse3 fma cx16 pcid sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand hypervisor lahf_lm abm tpr_shadow vnmi ept vpid fsgsbase tsc_adjust bmi1 avx2 smep bmi2 invpcid xsaveopt arat
bugs :
bogomips : 8000.01
clflush size : 64
cache_alignment : 64
address sizes : 43 bits physical, 48 bits virtual
power management:
#但并没有安装qemu-kvm的包，大概不需要
root@ubuntu:/opt/android-sdk/emulator# kvm --version
The program 'kvm' is currently not installed. You can install it by typing:
apt install qemu-kvm
如果没有hardware acceleration:
#dd
References
https://www.cnblogs.com/cnkemi/p/9180525.html
https://blog.csdn.net/u011541946/article/details/77922304
https://www.cnblogs.com/tobecrazy/p/4596214.html
https://www.cnblogs.com/Lihao2013/p/6149733.html
https://medium.com/@husayn.hakeem/flutter-hello-world-d15032356c81
https://www.jianshu.com/p/363ff4f5d832
https://flutter.dev/docs/cookbook/testing/integration/introduction
https://appiumpro.com/editions/58
https://paulemtz.blogspot.com/2013/05/android-testing-in-headless-emulator.html
https://medium.com/@nocnoc/android-emulators-in-thcloud-f39e11c15bfa
https://learningnetwork.cisco.com/docs/DOC-30195
https://vitux.com/how-to-install-kvm-to-create-and-manage-virtual-machines-in-ubuntu/
https://developer.android.com/studio/run/emulator-acceleration
https://software.intel.com/en-us/blogs/2012/03/12/how-to-start-intel-hardware-assisted-virtualization-hypervisor-on-linux-to-speed-up-intel-android-x86-emulator