| <template> |
| <view class="u-char-box"> |
| <view class="u-char-flex"> |
| <input :disabled="disabledKeyboard" :value="valueModel" type="number" :focus="focus" :maxlength="maxlength" class="u-input" @input="getVal"/> |
| <view v-for="(item, index) in loopCharArr" :key="index"> |
| <view :class="[breathe && charArrLength == index ? 'u-breathe' : '', 'u-char-item', |
| charArrLength === index && mode == 'box' ? 'u-box-active' : '', |
| mode === 'box' ? 'u-box' : '']" :style="{ |
| fontWeight: bold ? 'bold' : 'normal', |
| fontSize: fontSize + 'rpx', |
| width: width + 'rpx', |
| height: width + 'rpx', |
| color: inactiveColor, |
| borderColor: charArrLength === index && mode == 'box' ? activeColor : inactiveColor |
| }"> |
| <view class="u-placeholder-line" :style="{ |
| display: charArrLength === index ? 'block' : 'none', |
| height: width * 0.5 +'rpx' |
| }" |
| v-if="mode !== 'middleLine'" |
| ></view> |
| <view v-if="mode === 'middleLine' && charArrLength <= index" :class="[breathe && charArrLength == index ? 'u-breathe' : '', charArrLength === index ? 'u-middle-line-active' : '']" |
| class="u-middle-line" :style="{height: bold ? '4px' : '2px', background: charArrLength === index ? activeColor : inactiveColor}"></view> |
| <view v-if="mode === 'bottomLine'" :class="[breathe && charArrLength == index ? 'u-breathe' : '', charArrLength === index ? 'u-buttom-line-active' : '']" |
| class="u-bottom-line" :style="{height: bold ? '4px' : '2px', background: charArrLength === index ? activeColor : inactiveColor}"></view> |
| <block v-if="!dotFill"> {{ charArr[index] ? charArr[index] : ''}}</block> |
| <block v-else> |
| <text class="u-dot">{{ charArr[index] ? '●' : ''}}</text> |
| </block> |
| </view> |
| </view> |
| </view> |
| </view> |
| </template> |
| |
| <script> |
| /** |
| * messageInput 验证码输入框 |
| * @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/messageInput.html |
| * @property {String Number} maxlength 输入字符个数(默认4) |
| * @property {Boolean} dot-fill 是否用圆点填充(默认false) |
| * @property {String} mode 模式选择,见上方"基本使用"说明(默认box) |
| * @property {String Number} value 预置值 |
| * @property {Boolean} breathe 是否开启呼吸效果,见上方说明(默认true) |
| * @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true) |
| * @property {String Number} font-size 字体大小,单位rpx(默认60) |
| * @property {String} active-color 当前激活输入框的样式(默认#2979ff) |
| * @property {String} inactive-color 非激活输入框的样式,文字颜色同此值(默认#606266) |
| * @property {String | Number} width 输入框宽度,单位rpx,高等于宽(默认80) |
| * @property {Boolean} disabled-keyboard 禁止点击输入框唤起系统键盘(默认false) |
| * @event {Function} change 输入内容发生改变时触发,具体见官网说明 |
| * @event {Function} finish 输入字符个数达maxlength值时触发,见官网说明 |
| * @example <u-message-input mode="bottomLine"></u-message-input> |
| */ |
| export default { |
| name: "u-message-input", |
| props: { |
| // 最大输入长度 |
| maxlength: { |
| type: [Number, String], |
| default: 4 |
| }, |
| // 是否用圆点填充 |
| dotFill: { |
| type: Boolean, |
| default: false |
| }, |
| // 显示模式,box-盒子模式,bottomLine-横线在底部模式,middleLine-横线在中部模式 |
| mode: { |
| type: String, |
| default: "box" |
| }, |
| // 预置值 |
| value: { |
| type: [String, Number], |
| default: '' |
| }, |
| // 当前激活输入item,是否带有呼吸效果 |
| breathe: { |
| type: Boolean, |
| default: true |
| }, |
| // 是否自动获取焦点 |
| focus: { |
| type: Boolean, |
| default: false |
| }, |
| // 字体是否加粗 |
| bold: { |
| type: Boolean, |
| default: false |
| }, |
| // 字体大小 |
| fontSize: { |
| type: [String, Number], |
| default: 60 |
| }, |
| // 激活样式 |
| activeColor: { |
| type: String, |
| default: '#2979ff' |
| }, |
| // 未激活的样式 |
| inactiveColor: { |
| type: String, |
| default: '#606266' |
| }, |
| // 输入框的大小,单位rpx,宽等于高 |
| width: { |
| type: [Number, String], |
| default: '80' |
| }, |
| // 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 |
| disabledKeyboard: { |
| type: Boolean, |
| default: false |
| } |
| }, |
| watch: { |
| // maxlength: { |
| // // 此值设置为true,会在组件加载后无需maxlength变化就会执行一次本监听函数,无需再created生命周期中处理 |
| // immediate: true, |
| // handler(val) { |
| // this.maxlength = Number(val); |
| // } |
| // }, |
| value: { |
| immediate: true, |
| handler(val) { |
| // 转为字符串 |
| val = String(val); |
| // 超出部分截掉 |
| this.valueModel = val.substring(0, this.maxlength); |
| } |
| }, |
| }, |
| data() { |
| return { |
| valueModel: "" |
| } |
| }, |
| computed: { |
| // 是否显示呼吸灯效果 |
| animationClass() { |
| return (index) => { |
| if (this.breathe && this.charArr.length == index) return 'u-breathe'; |
| else return ''; |
| } |
| }, |
| // 用于显示字符 |
| charArr() { |
| return this.valueModel.split(''); |
| }, |
| charArrLength() { |
| return this.charArr.length; |
| }, |
| // 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 |
| loopCharArr() { |
| return new Array(this.maxlength); |
| } |
| }, |
| methods: { |
| getVal(e) { |
| let { |
| value |
| } = e.detail |
| this.valueModel = value; |
| // 判断长度是否超出了maxlength值,理论上不会发生,因为input组件设置了maxlength属性值 |
| if (String(value).length > this.maxlength) return; |
| // 未达到maxlength之前,发送change事件,达到后发送finish事件 |
| this.$emit('change', value); |
| if (String(value).length == this.maxlength) { |
| this.$emit('finish', value); |
| } |
| } |
| } |
| } |
| </script> |
| |
| <style scoped lang="scss"> |
| @import "../../libs/css/style.components.scss"; |
| |
| @keyframes breathe { |
| 0% { |
| opacity: 0.3; |
| } |
| |
| 50% { |
| opacity: 1; |
| } |
| |
| 100% { |
| opacity: 0.3; |
| } |
| } |
| |
| .u-char-box { |
| text-align: center; |
| } |
| |
| .u-char-flex { |
| @include vue-flex; |
| justify-content: center; |
| flex-wrap: wrap; |
| position: relative; |
| } |
| |
| .u-input { |
| position: absolute; |
| top: 0; |
| left: -100%; |
| width: 200%; |
| height: 100%; |
| text-align: left; |
| z-index: 9; |
| opacity: 0; |
| background: none; |
| } |
| |
| .u-char-item { |
| position: relative; |
| width: 90rpx; |
| height: 90rpx; |
| margin: 10rpx 10rpx; |
| font-size: 60rpx; |
| font-weight: bold; |
| color: $u-main-color; |
| line-height: 90rpx; |
| @include vue-flex; |
| justify-content: center; |
| align-items: center; |
| } |
| |
| .u-middle-line { |
| border: none; |
| } |
| |
| .u-box { |
| box-sizing: border-box; |
| border: 2rpx solid #cccccc; |
| border-radius: 6rpx; |
| } |
| |
| .u-box-active { |
| overflow: hidden; |
| animation-timing-function: ease-in-out; |
| animation-duration: 1500ms; |
| animation-iteration-count: infinite; |
| animation-direction: alternate; |
| border: 2rpx solid $u-type-primary; |
| } |
| |
| .u-middle-line-active { |
| background: $u-type-primary; |
| } |
| |
| .u-breathe { |
| animation: breathe 2s infinite ease; |
| } |
| |
| .u-placeholder-line { |
| /* #ifndef APP-NVUE */ |
| display: none; |
| /* #endif */ |
| position: absolute; |
| left: 50%; |
| top: 50%; |
| transform: translate(-50%, -50%); |
| width: 2rpx; |
| height: 40rpx; |
| background: #333333; |
| animation: twinkling 1.5s infinite ease; |
| } |
| |
| .u-animation-breathe { |
| animation-name: breathe; |
| } |
| |
| .u-dot { |
| font-size: 34rpx; |
| line-height: 34rpx; |
| } |
| |
| .u-middle-line { |
| height: 4px; |
| background: #000000; |
| width: 80%; |
| position: absolute; |
| border-radius: 2px; |
| top: 50%; |
| left: 50%; |
| transform: translate(-50%, -50%); |
| } |
| |
| .u-buttom-line-active { |
| background: $u-type-primary; |
| } |
| |
| .u-bottom-line { |
| height: 4px; |
| background: #000000; |
| width: 80%; |
| position: absolute; |
| border-radius: 2px; |
| bottom: 0; |
| left: 50%; |
| transform: translate(-50%); |
| } |
| </style> |