What is the usage of uni-app page?
uni-app page module provides methods to control the page. The usage methods are: 1. "page.$('.index-desc')"; 2. "page.$$('.list- text')"; 3. "await page.waitFor('picker')" and so on.
The operating environment of this article: Windows 7 system, uni-app version 2.5.1, DELL G3 computer
Usage of uni-app page What is it?
Page of uni-app——Methods to control the page
Page module provides methods to control the page.
Page properties
Properties | Description | Return type |
Page path | String | |
Page parameters | Object | |
Rendering data of the page | Object |
Method | Parameters | ##Description | Return value | ##$
Get page elements<code> | Element<code>$$ | ||
(selector: string) | <code><code>Get the page element array | Element[] | <code><code>waitFor |
(condition: string | number | Function | )<code><code><code>Wait until the condition is true | void | <code><code><code>data |
(path ?: String)<code><code><code><code>Get page rendering data | Object<code><code><code><code>setData | ||
<code><code><code>## (data: Object)<code><code><code><code><code>Set page rendering data | Object | <code><code><code><code>##size | |
<code><code>None<code><code><code><code><code><code>##Get the size of the page | Object<code><code><code><code>##scrollTop | ||
none<code><code><code><code><code><code><code><code> Get the page number scroll positionNumber | <code><code><code>## callMethod<code> | ||
#(method: string, ...args: any[]) | <code><code><code><code><code><code><code><code><code>Call the specified method on the pageany | <code><code><code>page.$() method <code>$() method is used Get the elements of the page. Input parameter description of $method: |
Required | Default value | Description | selector | String is |
Selector<code> | The sample code is as follows: | 1 const page = await program.currentPage() 2 const element = await page.$('.index-desc') 3 console.log(element.tagName) // 'view' Copy after login | page.$$() method$ The $() method is used to obtain the page number element array. Input parameter description of $$ method: |
Required | ##Default value | Description | selector | Stringis | ||||||||||||||||||||||||||||||||||||||||||||||||||
<code> |
字段 | 类型 | 必填 | 默认值 | 说明 |
<code>condition | String Number Function | 是 | 等待条件 |
- 如果条件是string类型时,那么该参数会被当成选择器,当该选择器选中元素个数不为零时,结束等待。
- 如果条件是number,那么该参数会被当成超时时长,当经过指定时间后,结束等待。
- 如果条件是FUnction类型,那么该参数会被当成断言函数,当该函数返回真时,结束等等。
示例代码如下:
1 const page = await program.currentPage() await page.waitFor(5000) // 等待 5 秒 2 await page.waitFor('picker') // 等待页面中出现 picker 元素 3 await page.waitFor(async() = >{ 4 return (await page.$$('picker')).length > 5 5 }); // 等待页面中 picker 元素数量大于 5
Page.data()方法
data()方法用于获取页码数据。data()方法参数如下:
字段 | 类型 | 必填 | 默认值 | 说明 |
<code>path | String | 否 | 数据路径 |
示例代码如下:
1 const page = await program.currentPage(); 2 console.log(await page.data('list'));
Page.setData()方法
setData()方法用于设置页面的渲染数据。setData()方法参数如下:
字段 | 类型 | 必填 | 默认值 | 说明 |
<code>data | Object | 是 | 要改变的数据 |
示例代码如下:
1 const page = await program.currentPage(); 2 await page.setData({ 3 text: 'changed data'4 });
Page.size()方法
size()方法获取页面的大小。size()的返回值如下:
字段 | 类型 | 说明 |
width | number | 页面可滚动宽度 |
height | number | 页面可滚动高度 |
Page.callMethod() 方法
callMethod()方法用于调用页面的指定方法。callMethod()的参数说明如下:
字段 | 类型 | 必填 | 默认值 | 说明 |
<code>method | String | 是 | - | 需要调用的方法名 |
<code>...args | array | 否 | - | 方法参数 |
推荐学习:《uni-app教程》
The above is the detailed content of What is the usage of uni-app page?. For more information, please follow other related articles on the PHP Chinese website!

Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Article

Hot Tools

Notepad++7.3.1
Easy-to-use and free code editor

SublimeText3 Chinese version
Chinese version, very easy to use

Zend Studio 13.0.1
Powerful PHP integrated development environment

Dreamweaver CS6
Visual web development tools

SublimeText3 Mac version
God-level code editing software (SublimeText3)

Hot Topics

How to develop uni-app in VSCode? The following article will share with you a tutorial on developing uni-app in VSCode. This may be the best and most detailed tutorial. Come and take a look!

How to use uniapp to develop a simple map navigation? This article will provide you with an idea for making a simple map. I hope it will be helpful to you!

How to use uniapp to develop a snake game? The following article will take you step by step to implement the Snake game in uniapp. I hope it will be helpful to you!

uni-app interface, global method encapsulation 1. Create an api file in the root directory, create api.js, baseUrl.js and http.js files in the api folder 2.baseUrl.js file code exportdefault"https://XXXX .test03.qcw800.com/api/"3.http.js file code exportfunctionhttps(opts,data){lethttpDefaultOpts={url:opts.url,data:data,method:opts.method

This article brings you relevant knowledge about uniapp, which mainly organizes the related issues of implementing the select-all function of the multi-select box. The reason why the select-all function cannot be implemented is that when the checked field of the checkbox is dynamically modified, the status on the interface can Real-time changes, but the change event of checkbox-group cannot be triggered. Let's take a look at it. I hope it will be helpful to everyone.

This article will guide you step by step in developing a uni-app calendar plug-in, and introduce how the next calendar plug-in is developed from development to release. I hope it will be helpful to you!

How does uniapp implement scroll-view drop-down loading? The following article talks about the drop-down loading of the uniapp WeChat applet scroll-view. I hope it will be helpful to everyone!

This article brings you relevant knowledge about uniapp. It mainly introduces how to use uniapp to make calls and synchronize recording. Friends who are interested should take a look at it. I hope it will be helpful to everyone.
