playwright/docs/mobile.md

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# Experimental support for Chrome for Android

You can try Playwright against Chrome for Android today. This support is
experimental. Support for devices is tracked in the issue
[#1122](https://github.com/microsoft/playwright/issues/1122).

## Requirements
- [Playwright 1.6](https://www.npmjs.com/package/playwright) or newer
- [ADB daemon](https://developer.android.com/studio/command-line/adb) running
  and authenticated with your device.
- [`Chrome 87`](https://play.google.com/store/apps/details?id=com.android.chrome)
  or newer installed on the device
- "Enable command line on non-rooted devices" enabled in `chrome://flags`.

  > Playwright will be looking for ADB daemon on the default port `5037`. It
  will use the first device available. Typically running `adb devices` is all
  you need to do.

## How to run

```js
const { _clank } = require('playwright');

(async () => {
  const context = await _clank.launchPersistentContext('', {
    viewport: null
  });
  const [page] = context.pages();
  await page.goto('https://webkit.org/');
  console.log(await page.evaluate(() => window.location.href));
  await page.screenshot({ path: 'example.png' });
  await context.close();
})();
```

>
[Clank](https://chromium.googlesource.com/chromium/src/+/master/docs/memory/android_dev_tips.md)
is a code name for Chrome for Android.

## Known limitations
- Raw USB operation is not yet supported, so you need ADB.
- Only `launchPersistentContext` works, launching ephemeral contexts is not
  supported.
- Passing `viewport: null` is necessary to make sure resolution is not
  emulated.
- Device needs to be awake to produce screenshots. Enabling "Stay awake"
  developer mode will help.
- We didn't run all the tests against the device, so not everything works.
[Playwright]: api.md#class-playwright "Playwright"
[Browser]: api.md#class-browser "Browser"
[BrowserContext]: api.md#class-browsercontext "BrowserContext"
[Page]: api.md#class-page "Page"
[Frame]: api.md#class-frame "Frame"
[ElementHandle]: api.md#class-elementhandle "ElementHandle"
[JSHandle]: api.md#class-jshandle "JSHandle"
[ConsoleMessage]: api.md#class-consolemessage "ConsoleMessage"
[Dialog]: api.md#class-dialog "Dialog"
[Download]: api.md#class-download "Download"
[Video]: api.md#class-video "Video"
[FileChooser]: api.md#class-filechooser "FileChooser"
[Keyboard]: api.md#class-keyboard "Keyboard"
[Mouse]: api.md#class-mouse "Mouse"
[Touchscreen]: api.md#class-touchscreen "Touchscreen"
[Request]: api.md#class-request "Request"
[Response]: api.md#class-response "Response"
[Selectors]: api.md#class-selectors "Selectors"
[Route]: api.md#class-route "Route"
[WebSocket]: api.md#class-websocket "WebSocket"
[TimeoutError]: api.md#class-timeouterror "TimeoutError"
[Accessibility]: api.md#class-accessibility "Accessibility"
[Worker]: api.md#class-worker "Worker"
[BrowserServer]: api.md#class-browserserver "BrowserServer"
[BrowserType]: api.md#class-browsertype "BrowserType"
[Logger]: api.md#class-logger "Logger"
[ChromiumBrowser]: api.md#class-chromiumbrowser "ChromiumBrowser"
[ChromiumBrowserContext]: api.md#class-chromiumbrowsercontext "ChromiumBrowserContext"
[ChromiumCoverage]: api.md#class-chromiumcoverage "ChromiumCoverage"
[CDPSession]: api.md#class-cdpsession "CDPSession"
[FirefoxBrowser]: api.md#class-firefoxbrowser "FirefoxBrowser"
[WebKitBrowser]: api.md#class-webkitbrowser "WebKitBrowser"
[Array]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array "Array"
[Buffer]: https://nodejs.org/api/buffer.html#buffer_class_buffer "Buffer"
[ChildProcess]: https://nodejs.org/api/child_process.html "ChildProcess"
[Element]: https://developer.mozilla.org/en-US/docs/Web/API/element "Element"
[Error]: https://nodejs.org/api/errors.html#errors_class_error "Error"
[EvaluationArgument]: #evaluationargument "Evaluation Argument"
[Map]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Map "Map"
[Object]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object "Object"
[Promise]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise "Promise"
[RegExp]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp "RegExp"
[Serializable]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/JSON/stringify#Description "Serializable"
[UIEvent.detail]: https://developer.mozilla.org/en-US/docs/Web/API/UIEvent/detail "UIEvent.detail"
[URL]: https://nodejs.org/api/url.html "URL"
[USKeyboardLayout]: ../src/usKeyboardLayout.ts "USKeyboardLayout"
[UnixTime]: https://en.wikipedia.org/wiki/Unix_time "Unix Time"
[boolean]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#Boolean_type "Boolean"
[function]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Function "Function"
[iterator]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Iteration_protocols "Iterator"
[null]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/null "null"
[number]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#Number_type "Number"
[origin]: https://developer.mozilla.org/en-US/docs/Glossary/Origin "Origin"
[selector]: https://developer.mozilla.org/en-US/docs/Web/CSS/CSS_Selectors "selector"
[Readable]: https://nodejs.org/api/stream.html#stream_class_stream_readable "Readable"
[string]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Data_structures#String_type "string"
[xpath]: https://developer.mozilla.org/en-US/docs/Web/XPath "xpath"