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How to dynamically change the width and height of view labels in WeChat applet

不言
不言Original
2018-06-27 15:36:285346browse

This article mainly introduces the method of dynamically changing the width and height of the view label in the WeChat applet, involving WeChat applet event response and related implementation techniques of using setData to dynamically operate data data. Friends in need can refer to it

The example of this article describes the method of dynamically changing the width and height of the view label in the WeChat applet. Share it with everyone for your reference, the details are as follows:

1. Effect display

##2. Key code

index.wxml file

<view class="view" style="width:{{view.Width}}px;height:{{view.Height}}px;"
>我是view标签,我现在的宽度是{{view.Width}}px,高度是{{view.Height}}px</view>
<input placeholder="输入view标签的宽度" bindinput="viewWidth"></input>
<input placeholder="输入view标签的高度" bindinput="viewHeight"></input>

style set here ="width:{{view.Width}}px;height:{{view.Height}}px;"The value can be dynamically changed through event response, thereby changing the width and height styles of the view component.

index.js file

var pageData={}
pageData.data={
  view:{
    Width:100,
    Height:100
  }
}
pageData[&#39;viewWidth&#39;]=function(e){
console.log(e);
  this.setData({
    view:{
      Width:e.detail.value,
      Height:this.data.view.Height
    }
  })
}
pageData[&#39;viewHeight&#39;]=function(e){
  this.setData({
    view:{
      Width:this.data.view.Width, 
      Height:e.detail.value 
    }
  })
}
Page(pageData)

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