| 123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240 | <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>			<view v-if="codeArray.length === index" :style="{backgroundColor: color}" class="u-code-input__item__cursor"></view>		</view>		<input			:disabled="disabledKeyboard"			type="number"			:focus="focus"			:value="inputValue"			:maxlength="maxlength"			class="u-code-input__input"			@input="inputHandler"			:style="{				height: $u.addUnit(size) 			}"		/>	</view></template><script>	import props from './props.js';	/**	 * CodeInput 验证码输入	 * @description 该组件一般用于验证用户短信验证码的场景,也可以结合uView的键盘组件使用	 * @tutorial https://www.uviewui.com/components/codeInput.html	 * @property {String | Number}	maxlength			最大输入长度 (默认 6 )	 * @property {Boolean}			dot					是否用圆点填充 (默认 false )	 * @property {String}			mode				显示模式,box-盒子模式,line-底部横线模式 (默认 'box' )	 * @property {Boolean}			hairline			是否细边框 (默认 false )	 * @property {String | Number}	space				字符间的距离 (默认 10 )	 * @property {String | Number}	value				预置值	 * @property {Boolean}			focus				是否自动获取焦点 (默认 false )	 * @property {Boolean}			bold				字体和输入横线是否加粗 (默认 false )	 * @property {String}			color				字体颜色 (默认 '#606266' )	 * @property {String | Number}	fontSize			字体大小,单位px (默认 18 )	 * @property {String | Number}	size				输入框的大小,宽等于高 (默认 35 )	 * @property {Boolean}			disabledKeyboard	是否隐藏原生键盘,如果想用自定义键盘的话,需设置此参数为true (默认 false )	 * @property {String}			borderColor			边框和线条颜色 (默认 '#c9cacc' )	 * @property {Boolean}			disabledDot			是否禁止输入"."符号 (默认 true )	 * 	 * @event {Function}	change	输入内容发生改变时触发,具体见上方说明			value:当前输入的值	 * @event {Function}	finish	输入字符个数达maxlength值时触发,见上方说明	value:当前输入的值	 * @example	<u-code-input v-model="value4" :focus="true"></u-code-input>	 */	export default {		name: 'u-code-input',		mixins: [uni.$u.mpMixin, uni.$u.mixin, props],		data() {			return {				inputValue: ''			}		},		watch: {			value: {				immediate: true,				handler(val) {					// 转为字符串,超出部分截掉					this.inputValue = String(val).substring(0, this.maxlength)				}			},		},		computed: {			// 根据长度,循环输入框的个数,因为头条小程序数值不能用于v-for			codeLength() {				return new Array(Number(this.maxlength))			},			// 循环item的样式			itemStyle() {				return index => {					const addUnit = uni.$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;			}			&__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;			}		}		&__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;		}	}		@keyframes u-cursor-flicker {		0% {		    opacity: 0;		}		50% {		    opacity: 1;		}		100% {		    opacity: 0;		}	}</style>
 |