|                                                                                                                                                                                                                                                                                                           |  | <template>    <view        class="u-subsection"        ref="u-subsection"        :class="[`u-subsection--${mode}`]"        :style="[$u.addStyle(customStyle), wrapperStyle]"    >        <view            class="u-subsection__bar"            ref="u-subsection__bar"            :style="[barStyle]"            :class="[                mode === 'button' && 'u-subsection--button__bar',                current === 0 &&                    mode === 'subsection' &&                    'u-subsection__bar--first',                current > 0 &&                    current < list.length - 1 &&                    mode === 'subsection' &&                    'u-subsection__bar--center',                current === list.length - 1 &&                    mode === 'subsection' &&                    'u-subsection__bar--last',            ]"        ></view>        <view            class="u-subsection__item"            :class="[                `u-subsection__item--${index}`,                index < list.length - 1 &&                    'u-subsection__item--no-border-right',                index === 0 && 'u-subsection__item--first',                index === list.length - 1 && 'u-subsection__item--last',            ]"            :ref="`u-subsection__item--${index}`"            :style="[itemStyle(index)]"            @tap="clickHandler(index)"            v-for="(item, index) in list"            :key="index"        >            <text                class="u-subsection__item__text"                :style="[textStyle(index)]"                >{{ getText(item) }}</text            >        </view>    </view></template>
<script>// #ifdef APP-NVUE
const dom = uni.requireNativePlugin("dom");const animation = uni.requireNativePlugin("animation");// #endif
import props from "./props.js";/** * Subsection 分段器 * @description 该分段器一般用于用户从几个选项中选择某一个的场景 * @tutorial https://www.uviewui.com/components/subsection.html
 * @property {Array}			list			tab的数据 * @property {String | Number}	current			当前活动的tab的index(默认 0 ) * @property {String}			activeColor		激活时的颜色(默认 '#3c9cff' ) * @property {String}			inactiveColor	未激活时的颜色(默认 '#303133' ) * @property {String}			mode			模式选择,mode=button为按钮形式,mode=subsection时为分段模式(默认 'button' ) * @property {String | Number}	fontSize		字体大小,单位px(默认 12 ) * @property {Boolean}			bold			激活选项的字体是否加粗(默认 true ) * @property {String}			bgColor			组件背景颜色,mode为button时有效(默认 '#eeeeef' ) * @property {Object}			customStyle		定义需要用到的外部样式 * @property {String}	        keyName	        从`list`元素对象中读取的键名(默认 'name' ) * * @event {Function} change		分段器选项发生改变时触发  回调 index:选项的index索引值,从0开始 * @example <u-subsection :list="list" :current="curNow" @change="sectionChange"></u-subsection> */export default {    name: "u-subsection",    mixins: [uni.$u.mpMixin, uni.$u.mixin, props],    data() {        return {            // 组件尺寸
            itemRect: {                width: 0,                height: 0,            },        };    },    watch: {        list(newValue, oldValue) {            this.init();        },        current: {            immediate: true,            handler(n) {                // #ifdef APP-NVUE
                // 在安卓nvue上,如果通过translateX进行位移,到最后一个时,会导致右侧无法绘制圆角
                // 故用animation模块进行位移
                const ref = this.$refs?.["u-subsection__bar"]?.ref;                // 不存在ref的时候(理解为第一次初始化时,需要渲染dom,进行一定延时再获取ref),这里的100ms是经过测试得出的结果(某些安卓需要延时久一点),勿随意修改
                uni.$u.sleep(ref ? 0 : 100).then(() => {                    animation.transition(this.$refs["u-subsection__bar"].ref, {                        styles: {                            transform: `translateX(${                                n * this.itemRect.width                            }px)`,
                            transformOrigin: "center center",                        },                        duration: 300,                    });                });                // #endif
            },        },    },    computed: {        wrapperStyle() {            const style = {};            // button模式时,设置背景色
            if (this.mode === "button") {                style.backgroundColor = this.bgColor;            }            return style;        },        // 滑块的样式
        barStyle() {            const style = {};            style.width = `${this.itemRect.width}px`;            style.height = `${this.itemRect.height}px`;            // 通过translateX移动滑块,其移动的距离为索引*item的宽度
            // #ifndef APP-NVUE
            style.transform = `translateX(${                this.current * this.itemRect.width            }px)`;
            // #endif
            if (this.mode === "subsection") {                // 在subsection模式下,需要动态设置滑块的圆角,因为移动滑块使用的是translateX,无法通过父元素设置overflow: hidden隐藏滑块的直角
                style.backgroundColor = this.activeColor;            }            return style;        },        // 分段器item的样式
        itemStyle(index) {            return (index) => {                const style = {};                if (this.mode === "subsection") {                    // 设置border的样式
                    style.borderColor = this.activeColor;                    style.borderWidth = "1px";                    style.borderStyle = "solid";                }                return style;            };        },        // 分段器文字颜色
        textStyle(index) {            return (index) => {                const style = {};                style.fontWeight =                    this.bold && this.current === index ? "bold" : "normal";                style.fontSize = uni.$u.addUnit(this.fontSize);                // subsection模式下,激活时默认为白色的文字
                if (this.mode === "subsection") {                    style.color =                        this.current === index ? "#fff" : this.inactiveColor;                } else {                    // button模式下,激活时文字颜色默认为activeColor
                    style.color =                        this.current === index                            ? this.activeColor                            : this.inactiveColor;                }                return style;            };        },    },    mounted() {        this.init();    },    methods: {        init() {            uni.$u.sleep().then(() => this.getRect());        },		// 判断展示文本
		getText(item) {			return typeof item === 'object' ? item[this.keyName] : item		},        // 获取组件的尺寸
        getRect() {            // #ifndef APP-NVUE
            this.$uGetRect(".u-subsection__item--0").then((size) => {                this.itemRect = size;            });            // #endif
            // #ifdef APP-NVUE
            const ref = this.$refs["u-subsection__item--0"][0];            ref &&                dom.getComponentRect(ref, (res) => {                    this.itemRect = res.size;                });            // #endif
        },        clickHandler(index) {            this.$emit("change", index);        },    },};</script>
<style lang="scss" scoped>@import "../../libs/css/components.scss";
.u-subsection {    @include flex;    position: relative;    overflow: hidden;	/* #ifndef APP-NVUE */	width: 100%;	box-sizing: border-box;	/* #endif */
    &--button {        height: 32px;        background-color: rgb(238, 238, 239);        padding: 3px;        border-radius: 3px;        align-items: stretch;
        &__bar {            background-color: #ffffff;            border-radius: 3px !important;        }    }
    &--subsection {        height: 30px;    }
    &__bar {        position: absolute;        /* #ifndef APP-NVUE */        transition-property: transform, color;        transition-duration: 0.3s;        transition-timing-function: ease-in-out;        /* #endif */
        &--first {            border-top-left-radius: 3px;            border-bottom-left-radius: 3px;            border-top-right-radius: 0px;            border-bottom-right-radius: 0px;        }
        &--center {            border-top-left-radius: 0px;            border-bottom-left-radius: 0px;            border-top-right-radius: 0px;            border-bottom-right-radius: 0px;        }
        &--last {            border-top-left-radius: 0px;            border-bottom-left-radius: 0px;            border-top-right-radius: 3px;            border-bottom-right-radius: 3px;        }    }
    &__item {        @include flex;        flex: 1;        justify-content: center;        align-items: center;        // vue环境下,需要设置相对定位,因为滑块为绝对定位,item需要在滑块的上面
        position: relative;
        &--no-border-right {            border-right-width: 0 !important;        }
        &--first {            border-top-left-radius: 3px;            border-bottom-left-radius: 3px;        }
        &--last {            border-top-right-radius: 3px;            border-bottom-right-radius: 3px;        }
        &__text {            font-size: 12px;            line-height: 12px;            @include flex;            align-items: center;            transition-property: color;            transition-duration: 0.3s;        }    }}</style>
 |