微信小程序 input输入及动态设置按钮的实现
【需求】实现当手机号已填写和协议已勾选时，“立即登录”按钮变亮，按钮可点击；若有一个不满足，按钮置灰，不可点击；实现获取短信验证码，倒计时提示操作；对不满足要求内容进行toast弹窗提示。
<view> <!--手机号--> <view> <text>手机号</text> <input value="{{mobile}}" placeholder-class="placeholder" placeholder="11位手机号码" type="number" maxlength="11" bindinput="mobileInput"/> </view> <!--图片验证码--> <view> <view> <text>图形验证码</text> <input placeholder-class="placeholder" placeholder="输入图形验证码" type="text" maxlength="4" bindinput="imgCaptchaInput"/> </view> <image src="https://www.jb51.net/{{imgCodeSrc}}" bindtap="getImgCode"></image> </view> <!--短信验证码--> <view> <view> <text>验证码</text> <input placeholder-class="placeholder" placeholder="输入验证码" type="number" maxlength="6" bindinput="smsCaptchaInput"/> </view> <view bindtap="getSMS">{{captchaText}}</view> </view> <view> <checkbox-group bindchange="checkboxChange"> <checkbox value="1" checked="true" bindchange="checkboxChange"></checkbox> </checkbox-group> <span>已阅读并同意</span> <text bindtap="xieyi">《用户使用协议》</text> </view> <view bindtap="regist">立即登录</view> </view> <!--mask--> <view wx:if="{{isShowToast}}"></view> <!--以下为toast显示的内容--> <view wx:if="{{isShowToast}}"> <view> <view> {{toastText}} </view> </view> </view>
js
// 获取全局应用程序实例对象 const app = getApp() Page({ data: { //toast默认不显示 isShowToast: false, mobile: '', imgCode: '', code: '', // inviteCode: '', errorContent: '请输入手机号', timer: 60, captchaText: '获取验证码', captchaSended: false, isReadOnly: false, capKey: '', sendRegist: false, imgCodeSrc: '', phoneAll: false, checkAgree:true, checkboxValue:[1], }, // 显示弹窗 showToast(txt, duration = 1500) { //设置toast时间，toast内容 this.setData({ count: duration, toastText: txt }); var _this = this; // toast时间 _this.data.count = parseInt(_this.data.count) ? parseInt(_this.data.count) : 3000; // 显示toast _this.setData({ isShowToast: true, }); // 定时器关闭 setTimeout(function () { _this.setData({ isShowToast: false }); }, _this.data.count); }, // 双向绑定mobile mobileInput(e) { this.setData({ mobile: e.detail.value }); if(this.data.mobile.length===11){ this.setData({ phoneAll: true }); }else if(this.data.mobile.length<11){ this.setData({ phoneAll: false }); } }, // 双向绑定img验证码 imgCaptchaInput(e) { this.setData({ imgCode: e.detail.value }); }, // 双向绑定sms验证码 smsCaptchaInput(e) { this.setData({ code: e.detail.value }); }, // 同意协议 checkboxChange(e) { this.data.checkboxValue = e.detail.value; if(this.data.checkboxValue[0]==1){ this.setData({ checkAgree: true }); }else { this.setData({ checkAgree: false }); } }, // 获取短信验证码 getSMS() { var that = this.data; if (!that.mobile) { this.showToast('请输入手机号'); } else if (that.mobile.length != 11 || isNaN(that.mobile)) { this.showToast('请输入正确手机号'); } else if (that.imgCode.length != 4) { this.showToast('请输入正确图片验证码'); } else { if (that.captchaSended) return; this.setData({ captchaSended: true }) app.api.getSMSByMobileAndCaptcha({ mobile: that.mobile, capKey: that.capKey, code: that.imgCode, type:1 }).then((result) => { this.showToast(result.message); if (result.code != 1) { this.getImgCode(); this.setData({ captchaSended: false, }); } else { var counter = setInterval(() => { that.timer--; this.setData({ timer: that.timer, captchaText: `${that.timer}秒`, isReadOnly: true }); if (that.timer === 0) { clearInterval(counter); that.captchaSended = false; that.captchaText = '获取验证码'; this.setData({ timer: 60, captchaText: '获取验证码', captchaSended: false }) } }, 1000); } }); } }, // 获取图形码 getImgCode() { var capKey = "zdx-weixin" + Math.random(); this.setData({ imgCodeSrc: "http://prezdx.geinihua.com/invite/WeChat/verify?capKey=" + capKey, capKey: capKey }); }, //用户使用协议 xieyi() { wx.navigateTo({ url: '../userXieyi/userXieyi' }) }, // 注册 regist() { var that = this.data; if(!that.checkAgree||!that.phoneAll){ return } // sessionCheck为1，目的是防止微信code码先于session过期 var code = wx.getStorageSync('wxCode'); var sessionCheck = wx.getStorageSync('sessionCheck'); wx.setStorageSync('mobile',that.mobile); if (!that.mobile) { this.showToast('请输入手机号'); } else if (that.mobile.length != 11 || isNaN(that.mobile)) { this.showToast('请输入正确手机号'); } else if (that.code.length != 6) { this.showToast('请输入正确验证码'); } else { wx.showLoading({ title: '加载中...', }); app.api.loginByCaptcha({ mobile: that.mobile, smsCode: that.code, code: code, sessionCheck:sessionCheck, }).then((res) => { wx.hideLoading(); if (res.code == 2||res.code==1) { //注册成功 wx.setStorageSync('token', res.businessObj.token); wx.setStorageSync('userId',res.businessObj.userId); this.sucessCb(res); app.globalData.isLogin = true; //设置为登录成功 } else { this.showToast(res.message); } }); } }, // 成功回调 sucessCb(res) { wx.redirectTo({ url: '/pages/index/index' }) }, onLoad: function () { this.getImgCode(); var that=this; if(wx.getStorageSync('mobile')){ that.setData({ mobile: wx.getStorageSync('mobile'), }) } if(this.data.mobile.length===11){ this.setData({ phoneAll: true }); } }, })