Page.emulate() 方法

¥Page.emulate() method

模拟给定设备的指标和用户代理。

¥Emulates a given device's metrics and user agent.

为了帮助模拟，Puppeteer 提供了可通过 KnownDevices 的已知设备列表。

¥To aid emulation, Puppeteer provides a list of known devices that can be via KnownDevices.

签名

¥Signature

class Page {
  emulate(device: Device): Promise<void>;
}

参数

¥Parameters

范围	类型	描述
device	设备

Returns:

Promise<void>

备注

¥Remarks

该方法是调用两个方法的快捷方式：Page.setUserAgent() 和 Page.setViewport()。

¥This method is a shortcut for calling two methods: Page.setUserAgent() and Page.setViewport().

此方法将调整页面大小。许多网站不希望手机改变尺寸，因此你应该在导航到页面之前进行模拟。

¥This method will resize the page. A lot of websites don't expect phones to change size, so you should emulate before navigating to the page.

示例

¥Example

import {KnownDevices} from 'puppeteer';
const iPhone = KnownDevices['iPhone 15 Pro'];

(async () => {
  const browser = await puppeteer.launch();
  const page = await browser.newPage();
  await page.emulate(iPhone);
  await page.goto('https://www.google.com');
  // other actions...
  await browser.close();
})();