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<template> <view class="u-switch" :class="[value == true ? 'u-switch--on' : '', disabled ? 'u-switch--disabled' : '']" @tap="onClick" :style="[switchStyle]"> <view class="u-switch__node node-class" :style="{ width: $u.addUnit(this.size), height: $u.addUnit(this.size) }"> <u-loading :show="loading" class="u-switch__loading" :size="size * 0.6" :color="loadingColor" /> </view> </view> </template>
<script> /** * switch 开关选择器 * @description 选择开关一般用于只有两个选择,且只能选其一的场景。 * @tutorial https://www.uviewui.com/components/switch.html
* @property {Boolean} loading 是否处于加载中(默认false) * @property {Boolean} disabled 是否禁用(默认false) * @property {String Number} size 开关尺寸,单位rpx(默认50) * @property {String} active-color 打开时的背景色(默认#2979ff) * @property {Boolean} inactive-color 关闭时的背景色(默认#ffffff) * @property {Boolean | Number | String} active-value 打开选择器时通过change事件发出的值(默认true) * @property {Boolean | Number | String} inactive-value 关闭选择器时通过change事件发出的值(默认false) * @event {Function} change 在switch打开或关闭时触发 * @example <u-switch v-model="checked" active-color="red" inactive-color="#eee"></u-switch> */ export default { name: "u-switch", props: { // 是否为加载中状态
loading: { type: Boolean, default: false }, // 是否为禁用装填
disabled: { type: Boolean, default: false }, // 开关尺寸,单位rpx
size: { type: [Number, String], default: 50 }, // 打开时的背景颜色
activeColor: { type: String, default: '#2979ff' }, // 关闭时的背景颜色
inactiveColor: { type: String, default: '#ffffff' }, // 通过v-model双向绑定的值
value: { type: Boolean, default: false }, // 是否使手机发生短促震动,目前只在iOS的微信小程序有效(2020-05-06)
vibrateShort: { type: Boolean, default: false }, // 打开选择器时的值
activeValue: { type: [Number, String, Boolean], default: true }, // 关闭选择器时的值
inactiveValue: { type: [Number, String, Boolean], default: false }, }, data() { return {
} }, computed: { switchStyle() { let style = {}; style.fontSize = this.size + 'rpx'; style.backgroundColor = this.value ? this.activeColor : this.inactiveColor; return style; }, loadingColor() { return this.value ? this.activeColor : null; } }, methods: { onClick() { if (!this.disabled && !this.loading) { // 使手机产生短促震动,微信小程序有效,APP(HX 2.6.8)和H5无效
if(this.vibrateShort) uni.vibrateShort(); this.$emit('input', !this.value); // 放到下一个生命周期,因为双向绑定的value修改父组件状态需要时间,且是异步的
this.$nextTick(() => { this.$emit('change', this.value ? this.activeValue : this.inactiveValue); }) } } } }; </script>
<style lang="scss" scoped> @import "../../libs/css/style.components.scss"; .u-switch { position: relative; /* #ifndef APP-NVUE */ display: inline-block; /* #endif */ box-sizing: initial; width: 2em; height: 1em; background-color: #fff; border: 1px solid rgba(0, 0, 0, 0.1); border-radius: 1em; transition: background-color 0.3s; font-size: 50rpx; }
.u-switch__node { @include vue-flex; align-items: center; justify-content: center; position: absolute; top: 0; left: 0; border-radius: 100%; z-index: 1; background-color: #fff; background-color: #fff; box-shadow: 0 3px 1px 0 rgba(0, 0, 0, 0.05), 0 2px 2px 0 rgba(0, 0, 0, 0.1), 0 3px 3px 0 rgba(0, 0, 0, 0.05); box-shadow: 0 3px 1px 0 rgba(0, 0, 0, 0.05), 0 2px 2px 0 rgba(0, 0, 0, 0.1), 0 3px 3px 0 rgba(0, 0, 0, 0.05); transition: transform 0.3s cubic-bezier(0.3, 1.05, 0.4, 1.05); transition: transform 0.3s cubic-bezier(0.3, 1.05, 0.4, 1.05), -webkit-transform 0.3s cubic-bezier(0.3, 1.05, 0.4, 1.05); transition: transform cubic-bezier(0.3, 1.05, 0.4, 1.05); transition: transform 0.3s cubic-bezier(0.3, 1.05, 0.4, 1.05) }
.u-switch__loading { @include vue-flex; align-items: center; justify-content: center; }
.u-switch--on { background-color: #1989fa; }
.u-switch--on .u-switch__node { transform: translateX(100%); }
.u-switch--disabled { opacity: 0.4; } </style>
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