微信小程序自定义
navigationBar顶部导航栏，兼容适配所有机型
1. 实现效果
2. App.vue
- 在App.vue 中，设置获取的
StatusBar，CustomBar高度（实现适配高度写法） uni.getSystemInfo获取可视区域的高度wx.getMenuButtonBoundingClientRect()胶囊按钮位置信息
<script>
import Vue from 'vue'
export default {
onLaunch: function() {
uni.getSystemInfo({
success: function(e) {
// #ifndef MP
Vue.prototype.StatusBar = e.statusBarHeight;
if (e.platform == 'android') {
Vue.prototype.CustomBar = e.statusBarHeight + 50;
} else {
Vue.prototype.CustomBar = e.statusBarHeight + 45;
};
// #endif
// #ifdef MP-WEIXIN
Vue.prototype.StatusBar = e.statusBarHeight;
let custom = wx.getMenuButtonBoundingClientRect();
Vue.prototype.Custom = custom;
Vue.prototype.CustomBar = custom.bottom + custom.top - e.statusBarHeight + 4;
// #endif
// #ifdef MP-ALIPAY
Vue.prototype.StatusBar = e.statusBarHeight;
Vue.prototype.CustomBar = e.statusBarHeight + e.titleBarHeight;
// #endif
}
});
},
onShow: function() {
console.log('App Show')
},
onHide: function() {
console.log('App Hide')
}
}
</script>
<style lang="scss">
</style>
3. pages.json 配置自定义
"pages": [{
"path": "home",
"style": {
"navigationStyle": "custom"
}
}]
4. 顶部导航栏 使用
- 组件完整代码（CSS 部分 我使用的是 colorUI ，不懂的可以看看写法）
<template>
<view>
<view class="cu-custom" :style="[{height:CustomBar + 'px'}]">
<view class="cu-bar fixed" :style="style" :class="[bgImage!=''?'none-bg text-white bg-img':'',bgColor]">
<view class="action" @tap="BackPage" v-if="isBack">
<text class="cuIcon-back"></text>
<slot name="backText"></slot>
</view>
<view class="content" :style="[{top:StatusBar + 'px'}]">
<slot name="content"></slot>
</view>
<slot name="right"></slot>
</view>
</view>
</view>
</template>
<script>
export default {
data() {
return {
StatusBar: this.StatusBar,
CustomBar: this.CustomBar
};
},
name: 'cu-custom',
computed: {
style() {
var StatusBar = this.StatusBar;
var CustomBar = this.CustomBar;
var bgImage = this.bgImage;
var style = `height:${
CustomBar}px;padding-top:${
StatusBar}px;`;
if (this.bgImage) {
style = `${
style}background-image:url(${
bgImage});`;
}
return style
}
},
props: {
bgColor: {
type: String,
default: ''
},
isBack: {
type: [Boolean, String],
default: false
},
bgImage: {
type: String,
default: ''
},
},
methods: {
BackPage() {
uni.navigateBack({
delta: 1
});
}
}
}
</script>
<style lang="scss" scoped>
</style>
- main.js 全局注册顶部导航栏组件
// 此处为引用自定义顶部
import cuCustom from './colorui/components/cu-custom.vue'
Vue.component('cu-custom',cuCustom);
- 页面使用导航栏组件
<cu-custom class="navBox" bgColor="bg-gradual-blue" :isBack="true">
<block slot="backText">返回</block>
<block slot="content">首页</block>
</cu-custom>