What is appium-android-driver?
The appium-android-driver npm package is a driver for Appium that allows you to automate Android applications. It provides a set of tools and APIs to interact with Android devices and emulators, enabling you to perform various actions such as launching apps, interacting with UI elements, and running automated tests.
What are appium-android-driver's main functionalities?
Launching an Android App
This feature allows you to launch an Android application on a specified device or emulator. The code sample demonstrates how to create a session and launch an app using the appium-android-driver.
const { AndroidDriver } = require('appium-android-driver');
const driver = new AndroidDriver();
await driver.createSession({
platformName: 'Android',
deviceName: 'emulator-5554',
app: '/path/to/your/app.apk'
});
Interacting with UI Elements
This feature allows you to interact with UI elements within the Android application. The code sample shows how to find an element by its ID and perform a click action on it.
const { AndroidDriver } = require('appium-android-driver');
const driver = new AndroidDriver();
await driver.createSession({
platformName: 'Android',
deviceName: 'emulator-5554',
app: '/path/to/your/app.apk'
});
await driver.elementById('elementId').click();
Running Automated Tests
This feature allows you to run automated tests on your Android application. The code sample demonstrates how to create a session, interact with UI elements, and retrieve text from an element for validation.
const { AndroidDriver } = require('appium-android-driver');
const driver = new AndroidDriver();
await driver.createSession({
platformName: 'Android',
deviceName: 'emulator-5554',
app: '/path/to/your/app.apk'
});
await driver.elementById('elementId').click();
const text = await driver.elementById('textElementId').getText();
console.log(text);
Other packages similar to appium-android-driver
webdriverio
WebdriverIO is a popular automation framework that supports multiple platforms, including Android. It provides a rich set of APIs for interacting with web and mobile applications. Compared to appium-android-driver, WebdriverIO offers a more comprehensive solution for cross-platform automation.
detox
Detox is an end-to-end testing library for mobile applications, specifically designed for React Native apps. It provides tools for automating interactions with Android and iOS applications. While appium-android-driver focuses on general Android automation, Detox is tailored for React Native, offering a more specialized solution.
Appium Android Driver
Appium Android Driver is a test automation tool for Android devices. Appium Android Driver automates native, hybrid and mobile web apps, tested on simulators, emulators and real devices. Appium Android Driver is part of the Appium mobile test automation tool.
Note: Issue tracking for this repo has been disabled. Please use the main Appium issue tracker instead.
Deprecation Notice
This driver is obsolete and should not be used to automate devices running Android version
6.0 (codename Marshmallow, API level 23) or greater.
Consider using UIAutomator2 or
Espresso drivers for such purpose instead.
Along with the fact that Android Driver is obsolete, parts of its codebase are inherited
by the aforementioned drivers, so the project itself is still being partially maintained.
Usage
Import Android Driver, set desired capabilities and create a session:
import { AndroidDriver } from `appium-android-driver`
let defaultCaps = {
app: 'path/to/your.apk',
deviceName: 'Android',
platformName: 'Android'
};
let driver = new AndroidDriver();
await driver.createSession(defaultCaps);
Run commands:
await driver.setOrientation('LANDSCAPE');
console.log(await driver.getOrientation());
Technical details of the bootstrap system installed on the device
The system works by a com.android.uiautomator.testrunner.UiAutomatorTestCase
placed on the Android device, which opens a SocketServer
on port 4724
. This server receives commands, converts them to appropriate
Android UI Automator commands, and runs them in the context of the device.
The commands are sent through the JavaScript interface.
UiAutomator interface
Appium's UiAutomator interface has two methods start
and shutdown
.
async start (uiAutomatorBinaryPath, className, startDetector, ...extraParams)
start
will push uiAutomatorBinary to device and start UiAutomator with className
and return the SubProcess. startDetector
and extraParams
are optional arguments.
startDetector
will be used as condition to check against your output stream of test if any. extraParams
will be passed along as command line arguments when starting the subProcess.
shutdown
will kill UiAutomator process on the device and also kill the subProcess.
import UiAutomator from 'lib/uiautomator';
import ADB from 'appium-adb';
let adb = await ADB.createADB();
let uiAutomator = new UiAutomator(adb);
let startDetector = (s) => { return /Appium Socket Server Ready/.test(s); };
await uiAutomator.start('foo/bar.jar', 'io.appium.android.bootstrap.Bootstrap',
startDetector, '-e', 'disableAndroidWatchers', true);
await uiAutomator.shutdown();
Specifying and selecting devices/emulators
The driver will attempt to connect to a device/emulator based on these properties in the desiredCapabilities
object:
avd
: Launch or connect to the emulator with the given name.udid
: Connect to the device with the given UDID.platformVersion
: Connect to the first device or active emulator whose OS begins with the desired OS. This means platformVersion: 5
will take the first 5x
device from the output of adb devices
if there are multiple available.
If none of these capabilities are given, the driver will connect to the first device or active emulator returned from the output of adb devices
.
If more than one of these capabilities are given, the driver will only use first the capability in the order above. That is, avd
takes priority over udid
, which takes priority over platformVersion
.
API Notes
lock
behaves differently in Android than it does in iOS. In Android it does not take any arguments, and locks the screen and returns immediately.
Opt-In Features (With Security Risk)
These can be enabled when running this driver through Appium, via the --allow-insecure
or --relaxed-security
flags.
Feature Name | Description |
---|
get_server_logs | Allows retrieving of Appium server logs via the Webdriver log interface |
adb_shell | Allows execution of arbitrary adb shell commands via the "mobile: shell" command |
Development
Transpile ES2015 code
npm run build
Unit Test
npm test
Some tests need particular emulators. Currently they are twofold:
- API level 25: either set
ANDROID_25_AVD
environment variable to the name of
avd, or defaults to "Nexus_5_API_25"
. If neither exist, the tests are skipped. - API level 24: either set
ANDROID_24_NO_GMS_AVD
environment variable to the name of
avd, or defaults to "Nexus_5_API_24"
. If neither exist, the tests are skipped.
Some tests also also need a specific version of Chromedriver (specifically, 2.20
),
which is available in the test/assets
folder, or can be specified with the
CHROME_2_20_EXECUTABLE
environment variable.