canvasScreen/components/uni-segmented-control/uni-segmented-control.vue

<template>
	<view :class="{ text: styleType === 'text' }"
	 :style="{ borderColor: styleType === 'text' ? '' : activeColor }" 
	 class="segmented-control">
		<view v-for="(item, index) in values"
		 :class="[{ text: styleType === 'text' }, { active: index === currentIndex }]"
		  :key="index" :style="{
        color:
          index === currentIndex
            ? styleType === 'text'
              ? activeColor
              : 'rgb(255,255,255)'
            : styleType === 'text'
              ? 'rgb(135,156,196)'
              : activeColor,
        backgroundColor: index === currentIndex && styleType === 'button' ? activeColor : ''
      }" class="segmented-control-item" @click="_onClick(index)">
			{{ item }}
		</view>
	</view>
</template>

<script>
	export default {
		name: 'UniSegmentedControl',
		props: {
			current: {
				type: Number,
				default: 0
			},
			values: {
				type: Array,
				default () {
					return []
				}
			},
			activeColor: {
				type: String,
				default: 'rgb(255,255,255)'
			},
			styleType: {
				type: String,
				default: 'button'
			}
		},
		data() {
			return {
				currentIndex: 0
			}
		},
		watch: {
			current(val) {
				if (val !== this.currentIndex) {
					this.currentIndex = val
				}
			}
		},
		created() {
			this.currentIndex = this.current
		},
		methods: {
			_onClick(index) {
				if (this.currentIndex !== index) {
					this.currentIndex = index
					this.$emit('clickItem', index)
				}
			}
		}
	}
</script>

<style>
	@charset "UTF-8";

	.segmented-control {
		display: flex;
		flex-direction: row;
		justify-content: center;
		width: 75%;
		font-size: 38upx;
		box-sizing: border-box;
		margin: 0 auto;
		overflow: hidden;
		border: 1px solid;
		border-radius: 10upx
	}

	.segmented-control.text {
		border: 0;
		border-radius: 0
	}

	.segmented-control-item {
		flex: 1;
		text-align: center;
		line-height: 60upx;
		box-sizing: border-box;
		border-left: 1px solid
	}

	.segmented-control-item.active {
		color: white;
		position: relative;
	}

	.segmented-control-item.text {
		border-left: 0;
		font-size: 0.7rem;
		padding-bottom:5upx;
	}

	.segmented-control-item.text.active:after {
		content:"";
		display: block;
		position: absolute;
		left: 36%;
		bottom: -4upx;
		height: 10upx;
		width: 27%;
		background:url(../../static/img/caitubiao.png) no-repeat;
		background-size:100%;
	}

	.segmented-control-item:first-child {
		border-left-width: 0
	}
</style>