349 lines
6.4 KiB
Vue
349 lines
6.4 KiB
Vue
<template>
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<view class="tab-bar-container" :style="{ paddingBottom: safeAreaBottom }">
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<view
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class="tab-bar-item"
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v-for="(item, index) in tabbarList"
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:key="index"
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:class="{ 'active': currentPath === item.pagePath }"
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@tap="switchTab(index, item.pagePath)"
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>
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<view class="icon-wrapper">
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<uni-icons
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:type="currentPath === item.pagePath ? item.activeIcon : item.icon"
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:size="iconSize"
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:color="currentPath === item.pagePath ? activeColor : inactiveColor"
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:customStyle="{ transition: 'all 0.3s' }"
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></uni-icons>
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<view class="badge-wrapper">
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<!-- 数字徽章 -->
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<view class="badge badge-num" v-if="item.badge > 0">
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{{ item.badge > 99 ? '99+' : item.badge }}
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</view>
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<!-- 红点徽章 -->
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<view class="badge badge-dot" v-else-if="item.dot"></view>
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</view>
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</view>
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<text class="tab-text" :style="{ color: currentPath === item.pagePath ? activeColor : inactiveColor }">
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{{ item.text }}
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</text>
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<!-- 激活状态下划线 -->
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<view class="active-line" v-if="currentPath === item.pagePath" :style="{ backgroundColor: activeColor }"></view>
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</view>
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</view>
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</template>
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<script>
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import config from '@/config/index.js'
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export default {
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name: 'TabBar',
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props: {
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// 当前页面路径
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currentPath: {
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type: String,
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default: ''
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},
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// 图标大小
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iconSize: {
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type: Number,
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default: 24
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},
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// 激活状态颜色
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activeColor: {
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type: String,
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default: '#667eea'
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},
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// 未激活状态颜色
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inactiveColor: {
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type: String,
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default: '#999'
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},
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// 是否显示激活状态下划线
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showActiveLine: {
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type: Boolean,
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default: true
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}
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},
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data() {
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return {
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tabbarList: [],
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safeAreaBottom: '0px'
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}
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},
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created() {
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// 从配置文件加载tabbar配置
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this.tabbarList = config.tabbarList || []
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// 获取安全区域底部高度
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this.getSafeAreaBottom()
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},
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mounted() {
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// 监听页面显示，重新获取安全区域
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uni.onWindowResize(() => {
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this.getSafeAreaBottom()
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})
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},
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methods: {
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/**
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* 切换tab
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* @param {Number} index - tab索引
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* @param {String} path - 页面路径
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*/
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switchTab(index, path) {
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// 如果点击的是当前页面，不执行跳转
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if (this.currentPath === path) return
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// 发送切换事件
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this.$emit('change', path)
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// 触发点击反馈
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this.playClickFeedback()
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// 使用reLaunch跳转到对应页面（关闭所有页面，打开新页面）
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this.navigateToPage(path)
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},
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/**
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* 跳转到页面
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* @param {String} path - 页面路径
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*/
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navigateToPage(path) {
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// 使用reLaunch跳转，因为这是自定义tabbar
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uni.reLaunch({
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url: path,
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success: () => {
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console.log('跳转成功:', path)
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},
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fail: (err) => {
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console.error('跳转失败:', err)
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this.handleNavigationError()
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}
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})
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},
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/**
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* 处理跳转失败的情况
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*/
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handleNavigationError() {
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uni.showToast({
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title: '页面跳转失败',
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icon: 'none',
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duration: 2000
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})
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},
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/**
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* 点击反馈动画
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*/
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playClickFeedback() {
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// 可以添加震动反馈
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if (uni.vibrateShort) {
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uni.vibrateShort({
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success: () => {},
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fail: () => {}
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})
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}
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},
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/**
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* 获取安全区域底部高度
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*/
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getSafeAreaBottom() {
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const systemInfo = uni.getSystemInfoSync()
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this.safeAreaBottom = systemInfo.safeAreaInsets
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? systemInfo.safeAreaInsets.bottom + 'px'
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: '0px'
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},
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/**
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* 设置数字徽章
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* @param {Number} index - tab索引
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* @param {Number} count - 徽章数量
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*/
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setBadge(index, count) {
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if (this.tabbarList[index]) {
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this.$set(this.tabbarList, index, {
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...this.tabbarList[index],
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badge: count,
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dot: false
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})
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}
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},
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/**
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* 设置红点徽章
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* @param {Number} index - tab索引
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* @param {Boolean} show - 是否显示红点
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*/
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setDot(index, show) {
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if (this.tabbarList[index]) {
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this.$set(this.tabbarList, index, {
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...this.tabbarList[index],
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dot: show,
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badge: 0
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})
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}
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},
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/**
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* 清除所有徽章
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*/
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clearAllBadges() {
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this.tabbarList.forEach((item, index) => {
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this.$set(this.tabbarList, index, {
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...item,
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badge: 0,
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dot: false
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})
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})
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},
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/**
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* 获取tabbar项
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* @param {Number} index - tab索引
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* @returns {Object} tabbar项
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*/
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getTabItem(index) {
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return this.tabbarList[index] || null
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}
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}
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}
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</script>
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<style lang="scss" scoped>
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.tab-bar-container {
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position: fixed;
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left: 0;
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right: 0;
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bottom: 0;
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z-index: 999;
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display: flex;
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align-items: center;
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justify-content: space-around;
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height: 100rpx;
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background: #fff;
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border-top: 1rpx solid #eee;
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box-shadow: 0 -2rpx 10rpx rgba(0, 0, 0, 0.05);
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transition: all 0.3s;
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}
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.tab-bar-item {
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display: flex;
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flex-direction: column;
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align-items: center;
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justify-content: center;
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flex: 1;
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height: 100%;
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position: relative;
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transition: all 0.3s;
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cursor: pointer;
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&:active {
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opacity: 0.7;
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transform: scale(0.98);
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}
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&.active {
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.tab-text {
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font-weight: 500;
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transform: translateY(-2rpx);
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}
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.icon-wrapper {
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transform: translateY(-2rpx);
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}
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}
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}
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.icon-wrapper {
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position: relative;
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width: 48rpx;
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height: 48rpx;
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display: flex;
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align-items: center;
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justify-content: center;
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margin-bottom: 6rpx;
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transition: all 0.3s;
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}
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.badge-wrapper {
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position: absolute;
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top: 0;
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right: -8rpx;
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z-index: 10;
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}
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.badge {
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position: absolute;
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top: -8rpx;
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right: -8rpx;
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min-width: 32rpx;
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height: 32rpx;
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padding: 0 6rpx;
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display: flex;
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align-items: center;
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justify-content: center;
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color: #fff;
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font-size: 20rpx;
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font-weight: 500;
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line-height: 1;
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box-shadow: 0 2rpx 8rpx rgba(245, 108, 108, 0.4);
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animation: badgeIn 0.3s ease-out;
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&.badge-num {
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background: linear-gradient(135deg, #f56c6c 0%, #f89898 100%);
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border-radius: 16rpx;
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border: 2rpx solid #fff;
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}
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&.badge-dot {
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min-width: 16rpx;
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height: 16rpx;
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background: #f56c6c;
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border-radius: 50%;
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border: 2rpx solid #fff;
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padding: 0;
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}
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}
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@keyframes badgeIn {
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0% {
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transform: scale(0);
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opacity: 0;
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}
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50% {
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transform: scale(1.2);
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}
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100% {
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transform: scale(1);
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opacity: 1;
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}
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}
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.tab-text {
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font-size: 22rpx;
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color: #999;
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transition: all 0.3s;
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line-height: 1.2;
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}
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.active-line {
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position: absolute;
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bottom: 0;
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left: 50%;
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transform: translateX(-50%);
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width: 40rpx;
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height: 4rpx;
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border-radius: 2rpx;
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animation: lineIn 0.3s ease-out;
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}
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@keyframes lineIn {
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0% {
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width: 0;
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}
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100% {
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width: 40rpx;
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}
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}
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</style>
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