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Detailed explanation of WeChat applet components: input input box

高洛峰
高洛峰Original
2017-03-27 11:49:264872browse

input input boxComponent description:

This article introduces various input input boxes parameters and characteristics.

input input boxThe sample code runs as follows:

详解微信小程序组件:input输入框

The following is the WXML code:

##

<view class="content">
type:有效值:text 感觉没什么区别
<input  placeholder="type=text" type="text" value="" />
<input  placeholder="type=number" type="number" value="" />
<input  placeholder="type=idcard" type="idcard" value="" />
<input  placeholder="type=digit" type="digit" value="" />
password:
<input   type="text" password="{{false}}" placeholder="请输入密码"/>
<input   type="text" password="{{true}}" placeholder="请输入密码"/>
placeholder:
<input  placeholder="占位符" />
disable:
<input  placeholder="disable={{false}}" disabled=&#39;{{false}}&#39;/>
<input  placeholder="disable={{true}}" disabled=&#39;{{true}}&#39;/>
最大长度:
<input   maxlength="10" placeholder="maxlength=&#39;10&#39;最多长度10字符"/>
<input   maxlength="5" placeholder="maxlength=&#39;5&#39;最多长度5字符"/>
<input   maxlength="-1"  placeholder="值为-1,则不限制长度"/>
</view>

The following is the WXSS code:

.content{
  border:1px black solid;
  margin: 10px;
  font-size: 10pt;
  padding: 5px;
}
input{
  border:1px red solid;
margin: 5px;
}

##Event renderings:

详解微信小程序组件:input输入框

The following is the WXML code:

<view class="content">
bindinput="当内容改变"
<input  bindinput="bindinput"/>
bindfocus:当获取焦点
<input  bindfocus="bindfocus"/>
bindblur:当失去焦点触发
<input  bindblur="bindblur"/>
内容:
<view style="color:blue">
{{log}}
</view>
</view>

The following is the JS code:

Page({
  data:{
    log:'事件触发'
  },
  bindblur:function(e){
    var value=e.detail.value;
    this.setData({
      log:"bindblur失去焦点.输入框值="+value
    })
  },
  bindinput:function(e){
    var value=e.detail.value;
    this.setData({
      log:"bindinput内容改变.输入框值="+value
    })
  },
  bindfocus:function(e){
    var value=e.detail.value;
    this.setData({
      log:"bindfocus获取焦点.输入框值="+value
    })
  }
})

The following is the WXSS code:

.content{
  border:1px black solid;
  margin: 10px;
  font-size: 10pt;
  padding: 5px;
}
input{
  border:1px red solid;
margin: 5px;
}

Component properties:

##Propertiesvaluetype##passwordSpecify the style of placeholderString##placeholder-classSpecify the style class of placeholderWhether it is disabledMaximum input length, When set to -1Auto-focus, pull up the keyboard. When there can only be one input or textarea tag in the page, set the auto-focus attribute Get focus (currently not supported by development tools)

Description

Type

Default value

Initial content of the input box

String


Valid values: text, number, idcard, digit

String

text

is the password type

Boolean

false

##placeholder
Placeholder when the input box is empty

String

##placeholder -style


String

input-placeholder

disabled

Boolean

false

maxlength

, there is no limit to the maximum length

Number

140

auto-focus

Boolean

false

focus

Boolean

false

bindinput

除了date/time类型外的输入框,当键盘输入时,触发input事件,处理函数可以直接 return 一个字符串,将替换输入框的内容。

EventHandle


bindfocus

输入框聚焦时触发event.detail = {value: value}

EventHandle


bindblur

输入框失去焦点时触发event.detail = {value: value}

EventHandle


属性解析:

下面是WXML代码:

<!--属性:-->
<!--value:输入框内容-->
<input value="内容"/>
<!--type:有效类型text,number,idcard,digit,小编感觉其他三个和text没有明显区别,不清楚是什么问题,正常number应该只允许输入数字,但结果和text一样-->
<input type="text"/>
<input type="number"/>
<input type="idcard"/>
<input type="digit"/>
<!--password:密码格式 boolean需要{{}}表示-->
<input password="{{true}}"/>
<input password/>  等同于  <input password="{{false}}"/>
<!--placeholder:占位符,对输入框内容提示-->
<input placeholder="占位符" placeholder-class="占位符静态样式"   placeholder-style="占位符动态样式,可用{{}}进行动态赋值"/>
<!--disabled:控制标签有效,或者失效状态,在失效状态,不能获取该值-->
<input disabled="{{true}}"/>
<input disabled/> 等同于 <input disabled="{{false}}"/>
<!--maxlength:内容长度限制,默认140-->
<input  maxlength="100"/>
<input  maxlength/> 等同于 <input  maxlength="140"/>
<!--focus:初始化时,获取输入焦点(目前开发工具暂不支持)-->
<input  focus="{{true}}"/>
<input focus/> 等同于 <input focus="{{false}}"/>
<!--auto-focus:当界面只有一个input,自动获取焦点-->
<input   auto-focus="{{true}}"/>
<input   auto-focus/> 等同于 <input auto-focus="{{false}}"/>
<!--事件:-->
<!--bindinput:当内容改动时触发-->
<input bindinput="自己定义函数名">
<!--bindfocus:当获取焦点,可用输入状态时触发-->
<input bindfocus="自己定义函数名">
<!--bindblur:当失去焦点触发-->
<input bindblur="自己定义函数名">

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