Vant PasswordInput 密码输入框

介绍

带网格的输入框组件，可以用于输入支付密码、短信验证码等，通常与数字键盘组件配合使用

引入

import Vue from 'vue';
import { PasswordInput, NumberKeyboard } from 'vant';

Vue.use(PasswordInput);
Vue.use(NumberKeyboard);

代码演示

基础用法

<!-- 密码输入框 -->
<van-password-input
  :value="value"
  info="密码为 6 位数字"
  :focused="showKeyboard"
  @focus="showKeyboard = true"
/>
<!-- 数字键盘 -->
<van-number-keyboard
  :show="showKeyboard"
  @input="onInput"
  @delete="onDelete"
  @blur="showKeyboard = false"
/>

export default {
  data() {
    return {
      value: '123',
      showKeyboard: true
    };
  },
  methods: {
    onInput(key) {
      this.value = (this.value + key).slice(0, 6);
    },
    onDelete() {
      this.value = this.value.slice(0, this.value.length - 1);
    }
  }
}

自定义长度

<van-password-input
  :value="value"
  :length="4"
  :gutter="15"
  :focused="showKeyboard"
  @focus="showKeyboard = true"
/>

明文展示

<van-password-input
  :value="value"
  :mask="false"
  :focused="showKeyboard"
  @focus="showKeyboard = true"
/>

错误提示

通过error-info属性可以设置错误提示信息，例如当输入六位时提示密码错误

<!-- 密码输入框 -->
<van-password-input
  :value="value"
  :error-info="errorInfo"
  :focused="showKeyboard"
  @focus="showKeyboard = true"
/>
<!-- 数字键盘 -->
<van-number-keyboard
  :show="showKeyboard"
  @input="onInput"
  @delete="onDelete"
  @blur="showKeyboard = false"
/>

export default {
  data() {
    return {
      value: '123',
      showKeyboard: true,
      errorInfo: ''
    };
  },
  methods: {
    onInput(key) {
      this.value = (this.value + key).slice(0, 6);
      if (this.value.length === 6) {
        this.errorInfo = '密码错误';
      } else {
        this.errorInfo = '';
      }
    },
    onDelete() {
      this.value = this.value.slice(0, this.value.length - 1);
    }
  }
}

API

Props

value	密码值	string	''
info	输入框下方文字提示	string	-
error-info	输入框下方错误提示	string	-
length	密码最大长度	number | string	6
gutter	输入框格子之间的间距，如 20px 2em，默认单位为px	number | string	0
mask	是否隐藏密码内容	boolean	true
focused v2.1.8	是否已聚焦，聚焦时会显示光标	boolean	false

Events

focus

输入框聚焦时触发

-