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- <template>
- <view class="custom-navbar" :style="{'background':bgColor,'height':`${(statusBar + customBarH) * 2}rpx`}">
- <view class="custom-navbar-info" :style="{'background':bgColor,'position':isFixed?'fixed':'static',...customNavbarInfo }">
- <!-- 系统导航栏 -->
- <view class="system" :style="{'height':`${statusBar * 2}rpx`}"></view>
- <view class="navbar" :style="{'height':`${customBarH * 2}rpx`}">
- <view class="left" :style="{...leftStyle}">
- <!-- 通过具名插槽来自定义导航栏左侧内通 -->
- <slot name="left">
- <!-- 这里我就直接用文本代替了,返回图标大家自行替换哈 -->
- <!-- #ifdef APP-PLUS || H5 -->
- <view v-if="isLeft" @click="back()">
- <u-icon v-if="isPageUp" name="arrow-left" color="unset"></u-icon>
- <u-icon v-if="!isPageUp" name="home" size="22" color="unset"></u-icon>
- {{ isPageUp ? '':leftText }}
- </view>
- <!-- #endif -->
- <!-- 这里考虑到微信小程序分享的页面,在页面中不存在上一页面时,直接返回首页。-->
- <!-- #ifdef MP-WEIXIN -->
- <view @click="back()" v-if="isPageUp && isPageUp">返回</view>
- <view @click="homePage()" v-if="!isPageUp && isPageUp">首页</view>
- <!-- #endif -->
- </slot>
- </view>
- <!-- 通过具名插槽来自定义导航栏中间内通 -->
- <view class="content" :style="contentStyle">
- <slot name="content">{{ title }}</slot>
- </view>
- <!-- 通过具名插槽来自定义导航栏右侧内通 -->
- <view class="right">
- <slot name="right">
- </slot>
- </view>
- </view>
- </view>
- </view>
- </template>
- <script>
- export default {
- data() {
- return {
- statusBar: 0, // 状态栏
- customBarH: this.customBar, // 状态栏
- platform: "", // 平台
- isPageUp: true, // 是否返回上一页(微信小程序)
- }
- },
- props: {
- // 主体样式
- customNavbarInfo: {
- type: Object,
- default: ()=>{
- return {
- borderBottom: '1px solid #ebebeb',
- boxShadow: 'rgba(0, 0, 0, 0.1) 0px 1px 6px 0px'
- }
- }
- },
- // 状态栏
- customBar: {
- type: Number,
- default: 45
- },
- isLeft: {
- type: Boolean,
- default: true
- },
- // 主体样式
- leftStyle: {
- type: Object,
- default: ()=>{
- return {
- color: '#000'
- }
- }
- },
- // 自定义左侧文字
- leftText: {
- type: String,
- default: ""
- },
- // 标题名称
- title: {
- type: String,
- default: ""
- },
- // 标题名称样式
- contentStyle: {
- type: Object,
- default: ()=>{
- return {
- color: '#fff'
- }
- }
- },
- // 自定义右侧文字
- rightText: {
- type: String,
- default: ""
- },
- // 背景颜色
- bgColor: {
- type: String,
- default: "#fff"
- },
- // 是否固定顶部
- isFixed: {
- type: Boolean,
- default: false
- },
- delta: {
- type: Number,
- default: 1,
- }
- },
- mounted() {
- /*
- 这里通过 uni.getSystemInfo 获取系统信息
- 用来计算系统导航栏高度和导航栏高度
- */
- uni.getSystemInfo({
- success: (res) => {
- this.platform = res.platform
- // #ifdef MP
- this.statusBar = res.statusBarHeight
- const custom = wx.getMenuButtonBoundingClientRect()
- this.customBarH = custom.bottom + custom.top - res.statusBarHeight
- // #endif
- // #ifdef APP-PLUS
- this.statusBar = res.statusBarHeight
- // 这里是在安卓手机上加上 3 像素(当时好像是在安卓水滴屏上,系统导航栏高度较低才加上去的,大家可以真机自己调试一下)
- if (res.platform == "android") {
- this.statusBar += 3
- this.customBarH += 3
- }
- // #endif
- }
- })
- // getCurrentPages 官方解释用于获取当前页面的实例 官方地址:https://uniapp.dcloud.net.cn/uni-app-x/api/get-current-pages.html#getcurrentpages
- let pages = getCurrentPages()
- if (pages[pages.length - 2]) {
- this.isPageUp = true
- } else {
- this.isPageUp = false
- }
- },
- methods: {
- // 返回上一页面
- back() {
- console.log("返回上一页!")
- if(this.isPageUp) {
- uni.navigateBack({
- delta: this.delta
- })
- }else {
- this.homePage()
- }
-
- },
- // 微信小程序返回首页
- homePage() {
- console.log("返回首页!")
- uni.reLaunch({
- url: '/pages/main/index'
- })
- }
- }
- }
- </script>
- <style lang="scss" scoped>
- .custom-navbar {
- width: 100vw;
- color: #fff;
- .custom-navbar-info {
- width: 100%;
- z-index: 9999;
- .system {
- width: 100%;
- background: transparent;
- }
-
- .navbar {
- width: 100vw;
- display: flex;
- align-items: center;
- justify-content: space-between;
- box-sizing: border-box;
- position: relative;
- padding: 0 30rpx;
- }
-
- .left,
- .right {
- width: 120rpx;
- }
-
- .left {
- text-align: left;
- font-size: 32rpx;
- >view {
- display: flex;
- }
- }
-
- .content {
- text-align: center;
- font-size: 32rpx;
- }
-
- .right {
- text-align: right;
- }
- }
- }
- </style>
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