微信小程序 密码键盘

1.WXML页面

<view>
    <!--<section class="mask" catchtap="canclePwd" wx:if="{{inputPwd}}"></section>-->
    <section class="pwd-modal" catchtap="getFocus" >
        <!-- <p class="close">X</p> -->
        <!--<p class="title">输入查看密码</p>-->
        <ul>
            <li><i class="circle" wx:if="{{password.length >= 1}}"></i></li>
            <li><i class="circle" wx:if="{{password.length >= 2}}"></i></li>
            <li><i class="circle" wx:if="{{password.length >= 3}}"></i></li>
            <li><i class="circle" wx:if="{{password.length >= 4}}"></i></li>
            <li><i class="circle" wx:if="{{password.length >= 5}}"></i></li>
            <li><i class="circle" wx:if="{{password.length >= 6}}"></i></li>
        </ul>
        <input ref="inputs" focus="{{isFocus}}" type="number" maxlength="6"  bindinput="pwd" value="{{password}}"/>
    </section>

    <view class="submit" bindtap="submit">确定</view>
</view>

2.WXSS

.mask {
    position: fixed;
    top: 0;
    left: 0;
    min-height: 100%;
     100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 10;
}

.pwd-modal {
    /*position: fixed;*/
    /*top: 258rpx;*/
    /*left: 54rpx;*/
    /*right: 54rpx;*/
    /*height: 504rpx;*/
    padding-top: 50rpx;
    background: white;
    z-index: 99;
    border-radius: 8rpx;
    text-align: center;
}

ul {
    display: flex;
    margin: 94rpx 38rpx 104rpx;
}
.submit{
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height:98rpx;
    background:rgba(253,49,49,1);
    box-shadow:0px -4px 6px 0px rgba(0,0,0,0.02);
    color: #FFFFFF;
    text-align: center;
    line-height: 98rpx;
    color: #FFFFFF;
    font-size: 34rpx;
}
ul li {
     100%;
    height: 96rpx;
    line-height: 94rpx;
    border: 1rpx solid #ececeb;
    border-right: 0 none;
    box-sizing: border-box;
    text-align: center;
    font-size: 0;
}

ul li:last-of-type {
    border-right: 1rpx solid #ececeb;
}

ul li .circle {
    display: inline-block;
    vertical-align: middle;
     50rpx;
    height: 50rpx;
    border-radius: 50%;
    background: black;
}

input {
    text-indent: -9999rpx;
    margin-left: -9999rpx;
    opacity: 0;
}

3.JS

//index.js
//获取应用实例
const app = getApp()

Page({
    data: {
        password: '',
        isFocus: false,
        inputPwd: true,
        inputNum: 0,
        passwordFirst: '',
        passwordTwo: '',
    },
    pwd(e) {
        console.log(666)
        console.log(e.detail.value)
        console.log(666)
        let reg = /[^d]/g
        let mobile = e.detail.value.replace(reg, '')
        this.setData({
            password: mobile
        })
        return mobile
    },
    getFocus() {
        this.setData({
            isFocus: true
        })
    },
    onLoad: function () {
        console.log(this.data.password.length)
    },
    submit(){
        let that = this
        if (that.data.password.length == 6) {
            if (that.data.inputNum == 0) {
                that.data.passwordFirst = that.data.password
                that.data.inputNum = 1
                wx.setNavigationBarTitle({
                    title: '再次输入密码',
                })
                that.setData({
                    password: '',
                    isFocus: false,
                    inputPwd: true,
                })
            } else if (that.data.inputNum == 1){
                that.data.passwordTwo = that.data.password
                if (that.data.passwordFirst == that.data.passwordTwo) {
                    // 传that.data.passwordTwo为支付密码
                    wx.showToast({
                        title: '设置成功',
                        icon: 'success',
                        success: function (res) {
                            wx.navigateBack({
                                delta: 1
                            })
                        }
                    })

                } else {
                    wx.showToast({
                        title: '两次输入密码不同，请重新输入',
                        icon: 'none',
                    })
                    wx.setNavigationBarTitle({
                        title: '设置支付密码',
                    })
                    that.setData({
                        password: '',
                        isFocus: false,
                        inputPwd: true,
                        inputNum: 0,
                        passwordFirst: '',
                        passwordTwo: ''
                    })
                    return false
                }
            }
        }
    },

})