"window": {
   "navigationBarBackgroundColor": "#32A2FD",  // 頂部背景顏色
    "navigationBarTitleText": "123456",         // 頂部文字
    "navigationStyle": "default",               // 是否自定義導(dǎo)航欄,當(dāng)"default"為"custom"時(shí)開(kāi)啟自定義頭部導(dǎo)航欄選項(xiàng)
    "navigationBarTextStyle": "white",          // 頂部文字顏色 僅支持 white/black    
},

"path": "pages/cargo/pickUpGoods",//頁(yè)面路徑
"style": {
	"navigationBarTitleText": "uni-app", // 頂部文字
	"navigationBarBackgroundColor": "#fff", // 頂部背景顏色
	"navigationBarTextStyle": "black" // 頂部文字顏色
 
}

"path": "pages/cargo/shipments",
"style": {
	"navigationBarTitleText": "uni-app",
	"navigationStyle": "custom",//設(shè)置自定義導(dǎo)航欄
}

<template>
	<view class="prohibition">
		<view class="demo" :style="[{background},{color},{height},{paddingTop}]">
			<!-- 左側(cè)返回按鈕 -->
			<view class="left" @click="onBack" v-if="back" :style="[{color},{paddingTop}]">
				<uni-icons type="arrowleft" size="30" :color='color'></uni-icons>
				<!-- 此處圖標(biāo)使用的是 uni-ui圖標(biāo) -->
			</view>
			<!-- 中間標(biāo)題文字 -->
			<view class="title">
				{{title}}
			</view>
		</view>
	</view>
</template>
 
<script>
	export default {
		data() {
			return {
				height: 0, 
				paddingTop: 0,
				
			}
		},
		// props: ["title", "back"],
		props:{
			title:{ // 標(biāo)題文字(默認(rèn)為空)
				type:String,
				default:''
			},
			color:{ // 標(biāo)題和返回按鈕顏色(默認(rèn)白色)
				type:String,
				default:'#fff'
			},
            //建議使用background  因?yàn)槭褂胋ackgroundColor，會(huì)導(dǎo)致不識(shí)別漸變顏色
			background:{ // 背景顏色(不傳值默認(rèn)透明)
				type:String,
				default:'transparent'
			},
			back:{ // 是否顯示返回按鈕(不傳值默認(rèn)不顯示)
				type:Boolean,
				default:false
			},
		},
		
		created() {
			const demo = uni.getMenuButtonBoundingClientRect()
			this.height = demo.height + "px"
			this.paddingTop = demo.top + "px"
 
		},
		methods: {
			// 左側(cè)返回按鈕調(diào)用
			onBack() {
				this.$emit("onBack")
			}
		}
	}
</script>
<style lang="less">
	.demo {
		position: relative;//注意，建議使用相對(duì)定位，因?yàn)楣潭ǘㄎ粫?huì)脫離文檔流，然后你還要去設(shè)置marginTop值
		// position: fixed;
		width: 100%;
		display: flex;
		align-items: center;
		justify-content: center;
		font-size: 26rpx;
		z-index: 100;
		padding-bottom: 10rpx;
 
		.left {
			float: left;
			position: absolute;
			width: 100rpx;
			height: 50rpx;
			top: 0;
			bottom: 0;
			left: 20rpx;
			color: #fff;
			margin: auto;
		}
 
		.title {
			font-size: 36rpx;
			font-family: Source Han Sans CN;
			// color: #FFFFFF;
		}
	}
</style>

<navbar class="header" :background="backgroundColor" back :title="title" @onBack="goBack"></navbar>

        onNavigationBarButtonTap:function(e){
            console.log(JSON.stringify(e))
        },