微信小程序 input输入框详解及简单实例

<!--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.jsPage({ 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(); } }})