微信小程序自定义导航栏（wx_custom_navigation_bar）

自定义返回键、首页键，动态设置标题，响应式组件

版本号：1.0.0

作者：chen-yt

github: https://github.com/chen-yt/wx_custom_navigation_bar

截图

代码

navbar组件

• navbar.wxml

<view class="navbar" style="{{'height: ' + navigationBarHeight}}">
<view style="{{'height: ' + statusBarHeight}}"></view>
<view class='title-container'>
<view class='capsule' wx:if="{{ back || home }}">
<view bindtap='back' wx:if="{{back}}">
<image src='img/back.svg'></image>
</view>
<view bindtap='backHome' wx:if="{{home}}">
<image src='img/home.svg'></image>
</view>
</view>
<view class='title'>{{text}}</view>
</view>
</view>

• navbar.wxss

.navbar {
width: 100vw;
background-color: #2f2f2f;
position: fixed;
z-index: 4;
}

.title-container {
height: 44px;
display: flex;
align-items: center;
position: relative;
}

.capsule {
margin-left: 10px;
height: 32px;
border: 1px solid #777;
border-radius: 16px;
display: flex;
align-items: center;
}

.capsule > view {
width: 32px;
height: 60%;
position: relative;
}

.capsule > view:nth-child(2) {
border-left: 1px solid #777;
}

.capsule image {
width: 60%;
height: 100%;
position: absolute;
left: 50%;
top: 50%;
transform: translate(-50%,-50%);
}

.title {
color: white;
position: absolute;
left: 104px;
right: 104px;
font-size: 14px;
text-align: center;
overflow: hidden;
text-overflow: ellipsis;
white-space: nowrap;
}

• navbar.js

const app = getApp()

Component({

properties: {
text: {
type: String,
value: 'Wechat'
},
back: {
type: Boolean,
value: false
},
home: {
type: Boolean,
value: false
}
},

data: {
statusBarHeight: app.statusBarHeight + 'px',
navigationBarHeight: (app.statusBarHeight + 44) + 'px'
},

methods: {
backHome: function () {
wx.reLaunch({
url: '../index/index',
})
},
back: function () {
wx.navigateBack({
delta: 1
})
}
}
})

• navbar.json

{
"component": true
}