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							- <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: 90 rpx;
 
-   height: 90 rpx;
 
-   margin: 10 rpx 10 rpx;
 
-   font-size: 60 rpx;
 
-   font-weight: bold;
 
-   color: $u-main-color;
 
-   line-height: 90 rpx;
 
-   @include vue-flex;
 
-   justify-content: center;
 
-   align-items: center;
 
- }
 
- .u-middle-line {
 
-   border: none;
 
- }
 
- .u-box {
 
-   box-sizing: border-box;
 
-   border: 2 rpx solid #cccccc;
 
-   border-radius: 6 rpx;
 
- }
 
- .u-box-active {
 
-   overflow: hidden;
 
-   animation-timing-function: ease-in-out;
 
-   animation-duration: 1500ms;
 
-   animation-iteration-count: infinite;
 
-   animation-direction: alternate;
 
-   border: 2 rpx 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: 2 rpx;
 
-   height: 40 rpx;
 
-   background: #333333;
 
-   animation: twinkling 1.5s infinite ease;
 
- }
 
- .u-animation-breathe {
 
-   animation-name: breathe;
 
- }
 
- .u-dot {
 
-   font-size: 34 rpx;
 
-   line-height: 34 rpx;
 
- }
 
- .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>
 
 
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