New file |
| | |
| | | <template> |
| | | <view class="u-code-input"> |
| | | <view |
| | | class="u-code-input__item" |
| | | :style="[itemStyle(index)]" |
| | | v-for="(item, index) in codeLength" |
| | | :key="index" |
| | | > |
| | | <view |
| | | class="u-code-input__item__dot" |
| | | v-if="dot && codeArray.length > index" |
| | | ></view> |
| | | <text |
| | | v-else |
| | | :style="{ |
| | | fontSize: $u.addUnit(fontSize), |
| | | fontWeight: bold ? 'bold' : 'normal', |
| | | color: color |
| | | }" |
| | | >{{codeArray[index]}}</text> |
| | | <view |
| | | class="u-code-input__item__line" |
| | | v-if="mode === 'line'" |
| | | :style="[lineStyle]" |
| | | ></view> |
| | | <!-- #ifndef APP-PLUS --> |
| | | <view v-if="isFocus && codeArray.length === index" :style="{backgroundColor: color}" class="u-code-input__item__cursor"></view> |
| | | <!-- #endif --> |
| | | </view> |
| | | <input |
| | | :disabled="disabledKeyboard" |
| | | type="number" |
| | | :focus="focus" |
| | | :value="inputValue" |
| | | :maxlength="maxlength" |
| | | :adjustPosition="adjustPosition" |
| | | class="u-code-input__input" |
| | | @input="inputHandler" |
| | | :style="{ |
| | | height: $u.addUnit(size) |
| | | }" |
| | | @focus="isFocus = true" |
| | | @blur="isFocus = false" |
| | | /> |
| | | </view> |
| | | </template> |
| | | |
| | | <script> |
| | | import props from './props.js'; |
| | | /** |
| | | * CodeInput 验证码输入 |
| | | * @description 该组件一般用于验证用户短信验证码的场景,也可以结合uView的键盘组件使用 |
| | | * @tutorial https://www.uviewui.com/components/codeInput.html |
| | | * @property {String | Number} maxlength 最大输入长度 (默认 6 ) |
| | | * @property {Boolean} dot 是否用圆点填充 (默认 false ) |
| | | * @property {String} mode 显示模式,box-盒子模式,line-底部横线模式 (默认 'box' ) |
| | | * @property {Boolean} hairline 是否细边框 (默认 false ) |
| | | * @property {String | Number} space 字符间的距离 (默认 10 ) |
| | | * @property {String | Number} value 预置值 |
| | | * @property {Boolean} focus 是否自动获取焦点 (默认 false ) |
| | | * @property {Boolean} bold 字体和输入横线是否加粗 (默认 false ) |
| | | * @property {String} color 字体颜色 (默认 '#606266' ) |
| | | * @property {String | Number} fontSize 字体大小,单位px (默认 18 ) |
| | | * @property {String | Number} size 输入框的大小,宽等于高 (默认 35 ) |
| | | * @property {Boolean} disabledKeyboard 是否隐藏原生键盘,如果想用自定义键盘的话,需设置此参数为true (默认 false ) |
| | | * @property {String} borderColor 边框和线条颜色 (默认 '#c9cacc' ) |
| | | * @property {Boolean} disabledDot 是否禁止输入"."符号 (默认 true ) |
| | | * |
| | | * @event {Function} change 输入内容发生改变时触发,具体见上方说明 value:当前输入的值 |
| | | * @event {Function} finish 输入字符个数达maxlength值时触发,见上方说明 value:当前输入的值 |
| | | * @example <u-code-input v-model="value4" :focus="true"></u-code-input> |
| | | */ |
| | | export default { |
| | | name: 'u-code-input', |
| | | mixins: [uni.$u.mpMixin, uni.$u.mixin, props], |
| | | data() { |
| | | return { |
| | | inputValue: '', |
| | | isFocus: this.focus |
| | | } |
| | | }, |
| | | watch: { |
| | | value: { |
| | | immediate: true, |
| | | handler(val) { |
| | | // 转为字符串,超出部分截掉 |
| | | this.inputValue = String(val).substring(0, this.maxlength) |
| | | } |
| | | }, |
| | | }, |
| | | computed: { |
| | | // 根据长度,循环输入框的个数,因为头条小程序数值不能用于v-for |
| | | codeLength() { |
| | | return new Array(Number(this.maxlength)) |
| | | }, |
| | | // 循环item的样式 |
| | | itemStyle() { |
| | | return index => { |
| | | const addUnit = uni.$u.addUnit |
| | | const style = { |
| | | width: addUnit(this.size), |
| | | height: addUnit(this.size) |
| | | } |
| | | // 盒子模式下,需要额外进行处理 |
| | | if (this.mode === 'box') { |
| | | // 设置盒子的边框,如果是细边框,则设置为0.5px宽度 |
| | | style.border = `${this.hairline ? 0.5 : 1}px solid ${this.borderColor}` |
| | | // 如果盒子间距为0的话 |
| | | if (uni.$u.getPx(this.space) === 0) { |
| | | // 给第一和最后一个盒子设置圆角 |
| | | if (index === 0) { |
| | | style.borderTopLeftRadius = '3px' |
| | | style.borderBottomLeftRadius = '3px' |
| | | } |
| | | if (index === this.codeLength.length - 1) { |
| | | style.borderTopRightRadius = '3px' |
| | | style.borderBottomRightRadius = '3px' |
| | | } |
| | | // 最后一个盒子的右边框需要保留 |
| | | if (index !== this.codeLength.length - 1) { |
| | | style.borderRight = 'none' |
| | | } |
| | | } |
| | | } |
| | | if (index !== this.codeLength.length - 1) { |
| | | // 设置验证码字符之间的距离,通过margin-right设置,最后一个字符,无需右边框 |
| | | style.marginRight = addUnit(this.space) |
| | | } else { |
| | | // 最后一个盒子的有边框需要保留 |
| | | style.marginRight = 0 |
| | | } |
| | | |
| | | return style |
| | | } |
| | | }, |
| | | // 将输入的值,转为数组,给item历遍时,根据当前的索引显示数组的元素 |
| | | codeArray() { |
| | | return String(this.inputValue).split('') |
| | | }, |
| | | // 下划线模式下,横线的样式 |
| | | lineStyle() { |
| | | const style = {} |
| | | style.height = this.hairline ? '2px' : '4px' |
| | | style.width = uni.$u.addUnit(this.size) |
| | | // 线条模式下,背景色即为边框颜色 |
| | | style.backgroundColor = this.borderColor |
| | | return style |
| | | } |
| | | }, |
| | | methods: { |
| | | // 监听输入框的值发生变化 |
| | | inputHandler(e) { |
| | | const value = e.detail.value |
| | | this.inputValue = value |
| | | // 是否允许输入“.”符号 |
| | | if(this.disabledDot) { |
| | | this.$nextTick(() => { |
| | | this.inputValue = value.replace('.', '') |
| | | }) |
| | | } |
| | | // 未达到maxlength之前,发送change事件,达到后发送finish事件 |
| | | this.$emit('change', value) |
| | | // 修改通过v-model双向绑定的值 |
| | | this.$emit('input', value) |
| | | // 达到用户指定输入长度时,发出完成事件 |
| | | if (String(value).length >= Number(this.maxlength)) { |
| | | this.$emit('finish', value) |
| | | } |
| | | } |
| | | } |
| | | } |
| | | </script> |
| | | |
| | | <style lang="scss" scoped> |
| | | @import "../../libs/css/components.scss"; |
| | | $u-code-input-cursor-width: 1px; |
| | | $u-code-input-cursor-height: 40%; |
| | | $u-code-input-cursor-animation-duration: 1s; |
| | | $u-code-input-cursor-animation-name: u-cursor-flicker; |
| | | |
| | | .u-code-input { |
| | | @include flex; |
| | | position: relative; |
| | | overflow: hidden; |
| | | |
| | | &__item { |
| | | @include flex; |
| | | justify-content: center; |
| | | align-items: center; |
| | | position: relative; |
| | | |
| | | &__text { |
| | | font-size: 15px; |
| | | color: $u-content-color; |
| | | } |
| | | |
| | | &__dot { |
| | | width: 7px; |
| | | height: 7px; |
| | | border-radius: 100px; |
| | | background-color: $u-content-color; |
| | | } |
| | | |
| | | &__line { |
| | | position: absolute; |
| | | bottom: 0; |
| | | height: 4px; |
| | | border-radius: 100px; |
| | | width: 40px; |
| | | background-color: $u-content-color; |
| | | } |
| | | /* #ifndef APP-PLUS */ |
| | | &__cursor { |
| | | position: absolute; |
| | | top: 50%; |
| | | left: 50%; |
| | | transform: translate(-50%,-50%); |
| | | width: $u-code-input-cursor-width; |
| | | height: $u-code-input-cursor-height; |
| | | animation: $u-code-input-cursor-animation-duration u-cursor-flicker infinite; |
| | | } |
| | | /* #endif */ |
| | | |
| | | } |
| | | |
| | | &__input { |
| | | // 之所以需要input输入框,是因为有它才能唤起键盘 |
| | | // 这里将它设置为两倍的屏幕宽度,再将左边的一半移出屏幕,为了不让用户看到输入的内容 |
| | | position: absolute; |
| | | left: -750rpx; |
| | | width: 1500rpx; |
| | | top: 0; |
| | | background-color: transparent; |
| | | text-align: left; |
| | | } |
| | | } |
| | | |
| | | /* #ifndef APP-PLUS */ |
| | | @keyframes u-cursor-flicker { |
| | | 0% { |
| | | opacity: 0; |
| | | } |
| | | 50% { |
| | | opacity: 1; |
| | | } |
| | | 100% { |
| | | opacity: 0; |
| | | } |
| | | } |
| | | /* #endif */ |
| | | |
| | | </style> |