前言
最近在學習uni-app,由於是基於vue.js技術開發的,只要你熟悉vue,基本上很快就能上手了。在uni-app裏面如何實現一些自定導航,比如支持一些標題、按鈕、搜索、城市選擇。。。
uniapp原生導航
對於一些不是很複雜的頂部導航,當然使用原生導航欄實現是最佳選擇
uni-app原生導航欄也能實現一些頂部自定義按鈕+搜索框,只需在page.json裏面做一些配置即可。設置app-plus,不過目前暫支持H5、App端,不支持小程序。
dcloud平臺app-plus配置
在項目page.json裏面配置app-plus
{
"path": "pages/ucenter/index",
"style": {
"navigationBarTitleText": "我的",
"app-plus": {
"titleNView": {
"buttons": [
{
"text": "\ue670",
"fontSrc": "/static/iconfont.ttf",
"fontSize": "22px",
"float": "left"
},
{
"text": "\ue62c",
"fontSrc": "/static/iconfont.ttf",
"fontSize": "22px"
}
],
"searchInput":{
...
}
}
}
}
},
那麼如何監聽按鈕、輸入框事件? uni-app給出了相應API,只需把onNavigationBarButtonTap和onNavigationBarSearchInputChanged,寫在相應的頁面中即可。
uniapp自定義導航欄
如何實現像淘寶、微信頂部導航欄,支持背景漸變、標題居左、居中、搜索條、按鈕自定義。。。
將navigationStyle設爲custom或titleNView設爲false時,原生導航欄不顯示,這時就能自定義導航欄 "globalStyle": { "navigationStyle": "custom" }
具體效果實例如下:
在App.vue裏面需要對頂部狀態欄進行高度處理
onLaunch: function() {
uni.getSystemInfo({
success:function(e){
Vue.prototype.statusBar = e.statusBarHeight
// #ifndef MP
if(e.platform == 'android') {
Vue.prototype.customBar = e.statusBarHeight + 50
}else {
Vue.prototype.customBar = e.statusBarHeight + 45
}
// #endif
// #ifdef MP-WEIXIN
let custom = wx.getMenuButtonBoundingClientRect()
Vue.prototype.customBar = custom.bottom + custom.top - e.statusBarHeight
// #endif
// #ifdef MP-ALIPAY
Vue.prototype.customBar = e.statusBarHeight + e.titleBarHeight
// #endif
}
})
},
<header-bar :isBack="false" title="標題信息" titleTintColor="#fff">
<text slot="back" class="uni_btnIco iconfont icon-arrL"></text>
<text slot="iconfont" class="uni_btnIco iconfont icon-search" @tap="aaa"></text>
<text slot="iconfont" class="uni_btnIco iconfont icon-tianjia" @tap="bbb"></text>
<!-- <text slot="string" class="uni_btnString" @tap="ccc">添加好友</text> -->
<image slot="image" class="uni_btnImage" src="../../static/logo.png" mode="widthFix" @tap="ddd"></image>
</header-bar>
<header-bar :isBack="true" titleTintColor="#fff" :bgColor="{'background-image': 'linear-gradient(45deg, #007AFF 10%, #005cbf)'}" search>
<text slot="back" class="uni_btnIco iconfont icon-arrL"></text>
<text slot="iconfont" class="uni_btnIco iconfont icon-choose03" @tap="aaa"></text>
<image slot="image" class="uni_btnImage" src="../../static/logo.png" mode="widthFix" @tap="ddd"></image>
</header-bar>
<template>
<view class="uni_topbar" :style="style">
<view class="inner flexbox flex_alignc" :class="[fixed ? 'fixed' : '']" :style="[{'height': customBarH + 'px', 'padding-top': statusBarH + 'px', 'color': titleTintColor}, bgColor]">
<!-- 返回 -->
<!-- <text class="uni_icoBack iconfont icon-arrL" v-if="isBack" @tap="goBack"></text> -->
<view v-if="isBack" @tap="goBack">
<slot name="back"></slot>
</view>
<slot name="headerL"></slot>
<!-- 標題 -->
<!-- #ifndef MP -->
<view class="flex1" v-if="!search && center"></view>
<!-- #endif -->
<view class="uni_title flex1" :class="[center ? 'uni_titleCenter' : '']" :style="[isBack ? {'font-size': '32upx', 'padding-left': '0'} : '']" v-if="!search && title">
{{title}}
</view>
<view class="uni_search flex1" :class="[searchRadius ? 'uni_searchRadius' : '']" v-if="search"> />
<input class="uni_searchIpt flex1" type="text" placeholder="搜索" placeholder-style="color: rgba(255,255,255,.5);" />
</view>
<!-- 右側 -->
<view class="uni_headerRight flexbox flex_row flex_alignc">
<slot name="iconfont"></slot>
<slot name="string"></slot>
<slot name="image"></slot>
</view>
</view>
</view>
</template>
<script>
export default {
data() {
return {
statusBarH: this.statusBar,
customBarH: this.customBar
}
},
props: {
isBack: { type: [Boolean, String], default: true },
title: { type: String, default: '' },
titleTintColor: { type: String, default: '#fff' },
bgColor: Object,
center: { type: [Boolean, String], default: false },
search: { type: [Boolean, String], default: false },
searchRadius: { type: [Boolean, String], default: false },
fixed: { type: [Boolean, String], default: false },
},
computed: {
style() {
let _style = `height: ${this.customBarH}px;`
return _style
}
},
methods: {
goBack() {
uni.navigateBack()
}
}
}
</script>