72 lines
2.0 KiB
Vue
72 lines
2.0 KiB
Vue
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<template>
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<!-- 自定义导航栏: 默认透明不可见, scroll-view 滚动到 50 时展示 -->
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<view class="fly-navbar" :style="{ paddingTop: safeAreaInsets?.top + 'px' }">
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<!-- 1/3，多于1个页面，用返回图标 -->
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<navigator v-if="pages.length > 1" open-type="navigateBack" class="left-icon">
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<view class="bg-gray-500/80 rounded-full w-8 h-8 flex items-center justify-center">
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<button class="i-carbon-chevron-left text-white w-7 h-7"></button>
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</view>
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</navigator>
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<!-- 2/3，只有1个页面，如果不是tabbar，需要首页图标 -->
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<!-- 这种情况一般出现在用户直接打开分享出去的详情页面，或者使用redirectTo等API -->
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<navigator
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v-else-if="!isTabbar"
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open-type="switchTab"
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url="/pages/index/index"
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class="left-icon"
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>
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<view class="bg-gray-500/80 rounded-full w-8 h-8 flex items-center justify-center">
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<button class="i-carbon-home text-white w-6 h-6"></button>
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</view>
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</navigator>
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<!-- 3/3，如果当前页就是tabbar页，不用去首页，也就是什么图标都不需要 -->
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<view class="title">{{ title || '' }}</view>
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</view>
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</template>
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<script lang="ts" setup>
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import { getIsTabbar } from '@/utils/index'
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defineProps<{ title?: string }>()
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// 获取页面栈
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const pages = getCurrentPages()
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const isTabbar = getIsTabbar()
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console.log({ isTabbar, pagesLen: pages.length })
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// 获取屏幕边界到安全区域距离
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const { safeAreaInsets } = uni.getSystemInfoSync()
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</script>
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<style lang="scss" scoped>
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.fly-navbar {
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position: fixed;
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top: 0;
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left: 0;
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z-index: 9;
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width: 750rpx;
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color: #000;
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background-color: transparent;
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.left-icon {
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position: absolute;
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left: 0;
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display: flex;
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align-items: center;
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justify-content: center;
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width: 44px;
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height: 44px;
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font-size: 44rpx;
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color: #000;
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}
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.title {
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display: flex;
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align-items: center;
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justify-content: center;
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height: 44px;
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font-size: 32rpx;
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color: transparent;
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}
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}
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</style>
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