微信小程序表单组件输入框 input
微信小程序输入框input
<!--input.wxml-->
<view class="section">
<input placeholder="这是一个可以自动聚焦的input" auto-focus/>
</view>
<view class="section">
<input placeholder="这个只有在按钮点击的时候才聚焦" focus="{{focus}}" />
<view class="btn-area">
<button bindtap="bindButtonTap">使得输入框获取焦点</button>
</view>
</view>
<view class="section">
<input maxlength="10" placeholder="最大输入长度10" />
</view>
<view class="section">
<view class="section__title">你输入的是:{{inputValue}}</view>
<input bindinput="bindKeyInput" placeholder="输入同步到view中"/>
</view>
<view class="section">
<input bindinput="bindReplaceInput" placeholder="连续的两个1会变成2" />
</view>
<view class="section">
<input bindinput="bindHideKeyboard" placeholder="输入123自动收起键盘" />
</view>
<view class="section">
<input type="emoji" placeholder="这是一个带有表情的输入框" />
</view>
<view class="section">
<input password type="number" />
</view>
<view class="section">
<input password type="text" />
</view>
<view class="section">
<input type="digit" placeholder="带小数点的数字键盘"/>
</view>
<view class="section">
<input type="idcard" placeholder="身份证输入键盘" />
</view>
<view class="section">
<input placeholder-style="color:red" placeholder="占位符字体是红色的" />
</view>
//input.js
Page({
data:{
focus:false,
inputValue:""
},
bindButtonTap:function(){
this.setData({
focus:Date.now()
})
},
bindKeyInput:function(e){
this.setData({
inputValue:e.detail.value
})
},
bindReplaceInput:function(e){
var value = e.detail.value;
var pos = e.detail.cursor;
if(pos != -1){
//光标在中间
var left = e.detail.value.slice(0,pos);
//计算光标的位置
pos = left.replace(/11/g,'2').length;
}
//直接返回对象,可以对输入进行过滤处理,同时可以控制光标的位置
return {
value:value.replace(/11/g,'2'),
cursor:pos
}
//或者直接返回字符串,光标在最后边
//return value.replace(/11/g,'2'),
},
bindHideKeyboard:function(e){
if(e.detail.value === "123"){
//收起键盘
wx.hideKeyboard();
}
}
})