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 class="container">
  <!--手机号-->
  <view class="section">
    <text class="txt">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 class="section">
    <view>
      <text class="txt">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 class="imgBtn" src="/UploadFiles/2021-04-02/{{imgCodeSrc}}">

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) "zdx-weixin" + Math.random();
    this.setData({
      imgCodeSrc: "http://prezdx.geinihua.com/invite/WeChat/verify" + 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
      });
    }

  },

})

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