IONIC3验证码倒计时按钮实现

通常在登陆注册或重置密码时，需要用到手机验证码，今天开源一个验证码倒计时的按钮实现。

1.新建页面

ionic g page forget 

2.forget.html代码实现

<ion-header>
<ion-navbar color="secondary">
    <ion-title>找回密码</ion-title>
</ion-navbar>
</ion-header>
<ion-content fullscreen>
<ion-list no-lines>
    <ion-item style="background:none;" text-center>
    ![](assets/imgs/logo.jpg)
    <h3 style="color:white">积分系统</h3>
    </ion-item>
</ion-list>
<ion-grid class="xmf_form">
    <ion-row>
    <ion-item class="item_input">
        <ion-input type="number" [(ngModel)]="codeParam.usertel" placeholder="手机号"></ion-input>
        <button item-right ion-button round [disabled]="!verifyCode.disable" (click)="getCode()">{{verifyCode.verifyCodeTips}}</button>
    </ion-item>
    </ion-row>
    <ion-row>
    <ion-item class="item_input">
        <ion-input type="number" [(ngModel)]="params.vcode" placeholder="验证码"></ion-input>
    </ion-item>
    </ion-row>
    <ion-row>
    <ion-item class="item_input">
        <ion-input type="password" [(ngModel)]="params.newpass" placeholder="密码"> </ion-input>
    </ion-item>
    </ion-row>
    <ion-row>
    <ion-item class="item_input">
        <ion-input type="password" [(ngModel)]="params.sure_pwd" placeholder="确认密码"> </ion-input>
    </ion-item>
    </ion-row>
    <ion-row>
    <ion-col style="padding: 10px 20px 0px 20px;" text-center>
        <button ion-button full round (click)="doReset()"> 重置 </button>
    </ion-col>
    </ion-row>
    <ion-row>
    <ion-col tappable text-center>
        <!--忘记密码？-->
    </ion-col>
    </ion-row>
</ion-grid>
</ion-content>

3.forget.ts代码实现

    import { Component } from '@angular/core';
    import { NavController, NavParams } from 'ionic-angular';

    @Component({
    selector: 'page-forget',
    templateUrl: 'forget.html',
    })
    export class ForgetPage {

    params = {
        usertel: '',
        newpass: '',
        vcode: '',
        sure_pwd: ''
    }
    codeParam = {
        fromflag: 2,
        usertel: ""
    }
    constructor(public navCtrl: NavController, public navParams: NavParams) {
    }

    ionViewDidLoad() {
        console.log('ionViewDidLoad ForgetPage');
    }


    // 验证码倒计时
    verifyCode: any = {
        verifyCodeTips: "获取验证码",
        countdown: 60,
        disable: true
    }
    // 倒计时
    settime() {
        if (this.verifyCode.countdown == 1) {
        this.verifyCode.countdown = 60;
        this.verifyCode.verifyCodeTips = "获取验证码";
        this.verifyCode.disable = true;
        return;
        } else {
        this.verifyCode.countdown--;
        }

        this.verifyCode.verifyCodeTips = "重新获取(" + this.verifyCode.countdown + ")";
        setTimeout(() => {
        this.verifyCode.verifyCodeTips = "重新获取(" + this.verifyCode.countdown + ")";
        this.settime();
        }, 1000);
    }
    getCode() {
        if (this.codeParam.usertel == '') {
        console.debug("请填写手机号!");
        return;
        }

        //发送验证码成功后开始倒计时

        this.verifyCode.disable = false;
        this.settime();

    }
    doReset() {
        this.params.usertel = this.codeParam.usertel;

        if (this.params.usertel == "") {
        console.debug("请输入手机号");
        return;
        }

        if (this.params.vcode == "") {
        console.debug("请输入验证码");
        return;
        }

        if (this.params.newpass == this.params.sure_pwd) {

        } else {
        console.debug("两次密码输入不一致");
        }
    }
}

完！好了，请收藏点赞，谢谢！