Example of password input using WeChat applet

This article mainly introduces the relevant information on WeChat applet password input (source code download). Friends in need can refer to

Design the input box for payment password

The effect is as follows:

Example code:

<view class="pay">
<view class="title">支付方式</view>
<view catchtap="wx_pay" class="wx_pay">
<i class="icon {{payment_mode==1?&#39;active&#39;:&#39;&#39;}}" type="String"></i>
<text>微信支付</text>
</view>
<view catchtap="offline_pay" class="offline_pay">
<i class="icon {{payment_mode==0?&#39;active&#39;:&#39;&#39;}}" type="String"></i>
<text>对公打款</text>
</view>
<block wx:if="{{balance!=0}}">
<view catchtap="wallet_pay" class="wallet_pay">
<i class="icon {{payment_mode==2?&#39;active&#39;:&#39;&#39;}}" type="String"></i>
<text>钱包支付(余额:{{balance/100}}元)</text>
</view>
</block>
<block wx:if="{{balance==0}}">
<view class="wallet_pay">
<i class="icon" type="String" style="background:#e8e8e8;border:none;"></i>
<text style="color:#999">钱包支付(余额不足)</text>
</view>
</block>
</view>
<view catchtap="pay" class="save">确定</view>
<!--输入钱包密码-->
<view wx:if="{{wallets_password_flag}}" class="wallets-password">
<view class="input-content-wrap">
<view class="top">
<view catchtap="close_wallets_password" class="close">×</view>
<view class="txt">请输入支付密码</view>
<view catchtap="modify_password" class="forget">忘记密码</view>
</view>
<view class="actual_fee">
<span>￥</span>
<text>{{actual_fee/100}}</text>
</view>
<view catchtap="set_Focus" class="input-password-wrap">
<view class="password_dot">
<i wx:if="{{wallets_password.length>=1}}"></i>
</view>
<view class="password_dot">
<i wx:if="{{wallets_password.length>=2}}"></i>
</view>
<view class="password_dot">
<i wx:if="{{wallets_password.length>=3}}"></i>
</view>
<view class="password_dot">
<i wx:if="{{wallets_password.length>=4}}"></i>
</view>
<view class="password_dot">
<i wx:if="{{wallets_password.length>=5}}"></i>
</view>
<view class="password_dot">
<i wx:if="{{wallets_password.length>=6}}"></i>
</view>
</view>
</view>
<input bindinput="set_wallets_password" class="input-content" password type="number" focus="{{isFocus}}" maxlength="6" />
</view>

index.js

Page({
 data: {
  payment_mode: 1,//默认支付方式 微信支付
  isFocus: false,//控制input 聚焦
  balance:100,//余额
  actual_fee:20,//待支付
  wallets_password_flag:false//密码输入遮罩
 },
 //事件处理函数
 
 onLoad: function () {
  
 },
 wx_pay() {//转换为微信支付
  this.setData({
   payment_mode: 1
  })
 },
 offline_pay() {//转换为转账支付
  this.setData({
   payment_mode: 0
  })
 },
 wallet_pay() {
  this.setData({//转换为钱包支付
   payment_mode: 2
  })
 },
 set_wallets_password(e) {//获取钱包密码
  this.setData({
   wallets_password: e.detail.value
  });
  if (this.data.wallets_password.length == 6) {//密码长度6位时，自动验证钱包支付结果
   wallet_pay(this)
  }
 },
 set_Focus() {//聚焦input
  console.log('isFocus', this.data.isFocus)
  this.setData({
   isFocus: true
  })
 },
 set_notFocus() {//失去焦点
  this.setData({
   isFocus: false
  })
 },
 close_wallets_password () {//关闭钱包输入密码遮罩
  this.setData({
   isFocus: false,//失去焦点
   wallets_password_flag: false,
  })
 },
 pay() {//去支付
  pay(this)
 }
})
/*-----------------------------------------------*/
/*支付*/
function pay(_this) {
 let apikey = _this.data.apikey;
 let id = _this.data.id;
 let payment_mode = _this.data.payment_mode
 if (payment_mode == 1) {
 // 微信支付
 // 微信自带密码输入框
  console.log('微信支付')
 } else if (payment_mode == 0) {
 // 转账支付 后续跳转至传转账单照片
  console.log('转账支付')
 } else if (payment_mode == 2) {
  // 钱包支付 输入密码
  console.log('钱包支付')
  _this.setData({
   wallets_password_flag: true,
   isFocus: true
  })
 }

}
// 钱包支付
function wallet_pay(_this) {
 console.log('钱包支付请求函数')
 /*
 1.支付成功
 2.支付失败：提示；清空密码；自动聚焦isFocus:true，拉起键盘再次输入
 */
}

index.wxss

page {
 height: 100%;
 width: 100%;
 background: #e8e8e8;
}

page .pay {
 display: flex;
 flex-direction: column;
 background: #fff;
}

page .pay .title {
 height: 90rpx;
 line-height: 90rpx;
 font-size: 28rpx;
 color: #353535;
 padding: 0 23rpx;
 border-bottom: 1rpx solid #ddd;
 box-sizing: border-box;
}

page .pay .wx_pay, page .pay .offline_pay, page .pay .wallet_pay {
 margin: 0 26rpx;
 height: 90rpx;
 line-height: 90rpx;
 border-bottom: 2rpx solid #ddd;
 box-sizing: border-box;
 display: flex;
 align-items: center;
 justify-content: flex-start;
}

page .pay .wx_pay .icon, page .pay .offline_pay .icon,
page .pay .wallet_pay .icon {
 width: 34rpx;
 height: 34rpx;
 border: 2rpx solid #ddd;
 box-sizing: border-box;
 border-radius: 50%;
}

page .pay .wx_pay .icon.active, page .pay .offline_pay .icon.active,
page .pay .wallet_pay .icon.active {
 border: 10rpx solid #00a2ff;
}

page .pay .wx_pay text, page .pay .offline_pay text, page .pay .wallet_pay text {
 margin-left: 20rpx;
 color: #353535;
 font-size: 26rpx;
}

page .pay .wallet_pay {
 border: 0;
 border-top: 2rpx solid #ddd;
}

page .pay .offline_pay {
 border: 0 none;
}

page .save {
 margin: 80rpx 23rpx;
 color: #fff;
 background: #00a2ff;
 height: 88rpx;
 line-height: 88rpx;
 text-align: center;
 font-size: 30rpx;
 border-radius: 10rpx;
}

page .wallets-password {
 position: absolute;
 left: 0;
 top: 0;
 width: 100%;
 height: 100%;
 background: rgba(0, 0, 0, 0.6);
}

page .wallets-password .input-content-wrap {
 position: absolute;
 top: 200rpx;
 left: 50%;
 display: flex;
 flex-direction: column;
 width: 600rpx;
 margin-left: -300rpx;
 background: #fff;
 border-radius: 20rpx;
}

page .wallets-password .input-content-wrap .top {
 display: flex;
 align-items: center;
 height: 90rpx;
 border-bottom: 2rpx solid #ddd;
 justify-content: space-around;
}

page .wallets-password .input-content-wrap .top .close {
 font-size: 44rpx;
 color: #999;
 font-weight: 100;
}

page .wallets-password .input-content-wrap .top .forget {
 color: #00a2ff;
 font-size: 22rpx;
}

page .wallets-password .input-content-wrap .actual_fee {
 display: flex;
 align-items: center;
 justify-content: center;
 color: #000;
 height: 100rpx;
 margin: 0 23rpx;
 border-bottom: 2rpx solid #ddd;
}

page .wallets-password .input-content-wrap .actual_fee span {
 font-size: 24rpx;
}

page .wallets-password .input-content-wrap .actual_fee text {
 font-size: 36rpx;
}

page .wallets-password .input-content-wrap .input-password-wrap {
 display: flex;
 align-items: center;
 justify-content: center;
 height: 150rpx;
}

page .wallets-password .input-content-wrap .input-password-wrap .password_dot {
 display: flex;
 align-items: center;
 justify-content: center;
 text-align: center;
 color: #000;
 box-sizing: border-box;
 width: 90rpx;
 height: 90rpx;
 border: 2rpx solid #ddd;
 border-left: none 0;
}

page .wallets-password .input-content-wrap .input-password-wrap .password_dot:nth-child(1) {
 border-left: 2rpx solid #ddd;
}

page .wallets-password .input-content-wrap .input-password-wrap .password_dot i {
 background: #000;
 border-radius: 50%;
 width: 20rpx;
 height: 20rpx;
}

page .wallets-password .input-content {
 position: absolute;
 opacity: 0;
 left: -100%;
 top: 600rpx;
 background: #f56;
 z-index: -999;
}

page .wallets-password .input-content.active {
 z-index: -99;
}

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