效果

代码

<template>
	<view>
		<u-navbar :is-back="false">
			<view class="navbar">
				<view class="search">
					<image src="../../static/my_device/search_icon.png" class="search_image"></image>
					<u-input focus placeholder="搜索设备名称、序列号等" v-model="search_text"></u-input>
				</view>

				<u-button style="width: 32px; color: #3572ee" @click="return_previous_page()">取消</u-button>
			</view>
		</u-navbar>
		<view class="content"></view>
	</view>
</template>

<script>
export default {
	data() {
		return {
			search_text: ''
		};
	},
	methods: {
		return_previous_page() {
			uni.navigateBack();
		}
	}
};
</script>

<style scoped lang="scss">
.navbar {
	width: 100%;
	height: 120rpx;
	padding: 20rpx;
	display: flex;
	justify-content: space-between; /* 左右分布 */
	align-items: center;
	flex-wrap: wrap;
	.search {
		width: calc(100% - 50px);
		height: 32px;
		background-color: #f3f4f5;
		display: flex;
		align-items: center;
		border-radius: 32px;
		padding: 0 10px;
		box-sizing: border-box;
		.search_image {
			width: 20px;
			height: 20px;
			margin-right: 6px;
		}
	}
}

/deep/ .u-hairline-border:after {
	border: none; // 去除按钮边框
}
</style>