356 lines
9.7 KiB
Vue
356 lines
9.7 KiB
Vue
<template>
|
||
<view class="u-subsection" :style="[subsectionStyle]">
|
||
<view class="u-item u-line-1" :style="[itemStyle(index)]" @tap="click(index)" :class="[noBorderRight(index), 'u-item-' + index]"
|
||
v-for="(item, index) in listInfo" :key="index">
|
||
<view :style="[textStyle(index)]" class="u-item-text u-line-1">{{ item.name }}</view>
|
||
</view>
|
||
<view class="u-item-bg" :style="[itemBarStyle]"></view>
|
||
</view>
|
||
</template>
|
||
|
||
<script>
|
||
/**
|
||
* subsection 分段器
|
||
* @description 该分段器一般用于用户从几个选项中选择某一个的场景
|
||
* @tutorial https://www.uviewui.com/components/subsection.html
|
||
* @property {Array} list 选项的数组，形式见上方"基本使用"
|
||
* @property {String Number} current 初始化时默认选中的选项索引值（默认0）
|
||
* @property {String} active-color 激活时的颜色，mode为subsection时固定为白色（默认#303133）
|
||
* @property {String} inactive-color 未激活时字体的颜色，mode为subsection时无效（默认#606266）
|
||
* @property {String} mode 模式选择，见官网"模式选择"说明（默认button）
|
||
* @property {String Number} font-size 字体大小，单位rpx（默认28）
|
||
* @property {String Number} height 组件高度，单位rpx（默认70）
|
||
* @property {Boolean} animation 是否开启动画效果，见上方说明（默认true）
|
||
* @property {Boolean} bold 激活选项的字体是否加粗（默认true）
|
||
* @property {String} bg-color 组件背景颜色，mode为button时有效（默认#eeeeef）
|
||
* @property {String} button-color 按钮背景颜色，mode为button时有效（默认#ffffff）
|
||
* @event {Function} change 分段器选项发生改变时触发
|
||
* @example <u-subsection active-color="#ff9900"></u-subsection>
|
||
*/
|
||
export default {
|
||
name: "u-subsection",
|
||
props: {
|
||
// tab的数据
|
||
list: {
|
||
type: Array,
|
||
default () {
|
||
return [];
|
||
}
|
||
},
|
||
// 当前活动的tab的index
|
||
current: {
|
||
type: [Number, String],
|
||
default: 0
|
||
},
|
||
// 激活的颜色
|
||
activeColor: {
|
||
type: String,
|
||
default: '#303133'
|
||
},
|
||
// 未激活的颜色
|
||
inactiveColor: {
|
||
type: String,
|
||
default: '#606266'
|
||
},
|
||
// 模式选择，mode=button为按钮形式，mode=subsection时为分段模式
|
||
mode: {
|
||
type: String,
|
||
default: 'button'
|
||
},
|
||
// 字体大小，单位rpx
|
||
fontSize: {
|
||
type: [Number, String],
|
||
default: 28
|
||
},
|
||
// 是否开启动画效果
|
||
animation: {
|
||
type: Boolean,
|
||
default: true
|
||
},
|
||
// 组件的高度，单位rpx
|
||
height: {
|
||
type: [Number, String],
|
||
default: 70
|
||
},
|
||
// 激活tab的字体是否加粗
|
||
bold: {
|
||
type: Boolean,
|
||
default: true
|
||
},
|
||
// mode=button时，组件背景颜色
|
||
bgColor: {
|
||
type: String,
|
||
default: '#eeeeef'
|
||
},
|
||
// mode = button时，滑块背景颜色
|
||
buttonColor: {
|
||
type: String,
|
||
default: '#ffffff'
|
||
},
|
||
// 在切换分段器的时候，是否让设备震一下
|
||
vibrateShort: {
|
||
type: Boolean,
|
||
default: false
|
||
}
|
||
},
|
||
data() {
|
||
return {
|
||
listInfo: [],
|
||
itemBgStyle: {
|
||
width: 0,
|
||
left: 0,
|
||
backgroundColor: '#ffffff',
|
||
height: '100%',
|
||
transition: ''
|
||
},
|
||
currentIndex: this.current,
|
||
buttonPadding: 3, // mode = button 时，组件的内边距
|
||
borderRadius: 5, // 圆角值
|
||
firstTimeVibrateShort: true // 组件初始化时，会触发current变化，此时不应震动
|
||
};
|
||
},
|
||
watch: {
|
||
current: {
|
||
immediate: true,
|
||
handler(nVal) {
|
||
this.currentIndex = nVal;
|
||
this.changeSectionStatus(nVal);
|
||
}
|
||
}
|
||
},
|
||
created() {
|
||
// 将list的数据，传入listInfo数组，因为不能修改props传递的list值
|
||
// 可以接受直接数组形式，或者数组元素为对象的形式，如：['简介', '评论'],或者[{name: '简介'}, {name: '评论'}]
|
||
this.listInfo = this.list.map((val, index) => {
|
||
if (typeof val != 'object') {
|
||
let obj = {
|
||
width: 0,
|
||
name: val
|
||
};
|
||
return obj;
|
||
} else {
|
||
val.width = 0;
|
||
return val;
|
||
}
|
||
});
|
||
},
|
||
computed: {
|
||
// 设置mode=subsection时，滑块特有的样式
|
||
noBorderRight() {
|
||
return index => {
|
||
if (this.mode != 'subsection') return;
|
||
let classs = '';
|
||
// 不显示右边的边框
|
||
if (index < this.list.length - 1) classs += ' u-none-border-right';
|
||
// 显示整个组件的左右边圆角
|
||
if (index == 0) classs += ' u-item-first';
|
||
if (index == this.list.length - 1) classs += ' u-item-last';
|
||
return classs;
|
||
};
|
||
},
|
||
// 文字的样式
|
||
textStyle() {
|
||
return index => {
|
||
let style = {};
|
||
// 设置字体颜色
|
||
if (this.mode == 'subsection') {
|
||
if (index == this.currentIndex) {
|
||
style.color = '#ffffff';
|
||
} else {
|
||
style.color = this.activeColor;
|
||
}
|
||
} else {
|
||
if (index == this.currentIndex) {
|
||
style.color = this.activeColor;
|
||
} else {
|
||
style.color = this.inactiveColor;
|
||
}
|
||
}
|
||
// 字体加粗
|
||
if (index == this.currentIndex && this.bold) style.fontWeight = 'bold';
|
||
// 文字大小
|
||
style.fontSize = this.fontSize + 'rpx';
|
||
return style;
|
||
};
|
||
},
|
||
// 每个分段器item的样式
|
||
itemStyle() {
|
||
return index => {
|
||
let style = {};
|
||
if (this.mode == 'subsection') {
|
||
// 设置border的样式
|
||
style.borderColor = this.activeColor;
|
||
style.borderWidth = '1px';
|
||
style.borderStyle = 'solid';
|
||
}
|
||
return style;
|
||
};
|
||
},
|
||
// mode=button时，外层view的样式
|
||
subsectionStyle() {
|
||
let style = {};
|
||
style.height = uni.upx2px(this.height) + 'px';
|
||
if (this.mode == 'button') {
|
||
style.backgroundColor = this.bgColor;
|
||
style.padding = `${this.buttonPadding}px`;
|
||
style.borderRadius = `${this.borderRadius}px`;
|
||
}
|
||
return style;
|
||
},
|
||
// 滑块的样式
|
||
itemBarStyle() {
|
||
let style = {};
|
||
style.backgroundColor = this.activeColor;
|
||
style.zIndex = 1;
|
||
if (this.mode == 'button') {
|
||
style.backgroundColor = this.buttonColor;
|
||
style.borderRadius = `${this.borderRadius}px`;
|
||
style.bottom = `${this.buttonPadding}px`;
|
||
style.height = uni.upx2px(this.height) - this.buttonPadding * 2 + 'px';
|
||
style.zIndex = 0;
|
||
}
|
||
return Object.assign(this.itemBgStyle, style);
|
||
}
|
||
},
|
||
mounted() {
|
||
setTimeout(() => {
|
||
this.getTabsInfo();
|
||
}, 10);
|
||
},
|
||
methods: {
|
||
// 改变滑块的样式
|
||
changeSectionStatus(nVal) {
|
||
if (this.mode == 'subsection') {
|
||
// 根据滑块在最左边和最右边时，显示左边和右边的圆角
|
||
if (nVal == this.list.length - 1) {
|
||
this.itemBgStyle.borderRadius = `0 ${this.buttonPadding}px ${this.buttonPadding}px 0`;
|
||
}
|
||
if (nVal == 0) {
|
||
this.itemBgStyle.borderRadius = `${this.buttonPadding}px 0 0 ${this.buttonPadding}px`;
|
||
}
|
||
if (nVal > 0 && nVal < this.list.length - 1) {
|
||
this.itemBgStyle.borderRadius = '0';
|
||
}
|
||
}
|
||
// 更新滑块的位置
|
||
setTimeout(() => {
|
||
this.itemBgLeft();
|
||
}, 10);
|
||
if (this.vibrateShort && !this.firstTimeVibrateShort) {
|
||
// 使手机产生短促震动，微信小程序有效，APP(HX 2.6.8)和H5无效
|
||
// #ifndef H5
|
||
uni.vibrateShort();
|
||
// #endif
|
||
}
|
||
// 第一次过后，设置firstTimeVibrateShort为false，让其下一次可以震动(如果允许震动的话)
|
||
this.firstTimeVibrateShort = false;
|
||
},
|
||
click(index) {
|
||
// 不允许点击当前激活选项
|
||
if (index == this.currentIndex) return;
|
||
this.currentIndex = index;
|
||
this.changeSectionStatus(index);
|
||
this.$emit('change', Number(index));
|
||
},
|
||
// 获取各个tab的节点信息
|
||
getTabsInfo() {
|
||
let view = uni.createSelectorQuery().in(this);
|
||
for (let i = 0; i < this.list.length; i++) {
|
||
view.select('.u-item-' + i).boundingClientRect();
|
||
}
|
||
view.exec(res => {
|
||
if (!res.length) {
|
||
setTimeout(() => {
|
||
this.getTabsInfo();
|
||
return;
|
||
}, 10);
|
||
}
|
||
// 将分段器每个item的宽度，放入listInfo数组
|
||
res.map((val, index) => {
|
||
this.listInfo[index].width = val.width;
|
||
});
|
||
// 初始化滑块的宽度
|
||
if (this.mode == 'subsection') {
|
||
this.itemBgStyle.width = this.listInfo[0].width + 'px';
|
||
} else if (this.mode == 'button') {
|
||
this.itemBgStyle.width = this.listInfo[0].width + 'px';
|
||
}
|
||
// 初始化滑块的位置
|
||
this.itemBgLeft();
|
||
});
|
||
},
|
||
itemBgLeft() {
|
||
// 根据是否开启动画效果，
|
||
if (this.animation) {
|
||
this.itemBgStyle.transition = 'all 0.35s';
|
||
} else {
|
||
this.itemBgStyle.transition = 'all 0s';
|
||
}
|
||
let left = 0;
|
||
// 计算当前活跃item到组件左边的距离
|
||
this.listInfo.map((val, index) => {
|
||
if (index < this.currentIndex) left += val.width;
|
||
});
|
||
// 根据mode不同模式，计算滑块需要移动的距离
|
||
if (this.mode == 'subsection') {
|
||
this.itemBgStyle.left = left + 'px';
|
||
} else if (this.mode == 'button') {
|
||
this.itemBgStyle.left = left + this.buttonPadding + 'px';
|
||
}
|
||
}
|
||
}
|
||
};
|
||
</script>
|
||
|
||
<style lang="scss" scoped>
|
||
@import "../../libs/css/style.components.scss";
|
||
|
||
.u-subsection {
|
||
@include vue-flex;
|
||
align-items: center;
|
||
overflow: hidden;
|
||
position: relative;
|
||
}
|
||
|
||
.u-item {
|
||
flex: 1;
|
||
text-align: center;
|
||
font-size: 26rpx;
|
||
height: 100%;
|
||
@include vue-flex;
|
||
align-items: center;
|
||
justify-content: center;
|
||
color: $u-main-color;
|
||
padding: 0 6rpx;
|
||
}
|
||
|
||
.u-item-bg {
|
||
background-color: $u-type-primary;
|
||
position: absolute;
|
||
z-index: -1;
|
||
}
|
||
|
||
.u-none-border-right {
|
||
border-right: none !important;
|
||
}
|
||
|
||
.u-item-first {
|
||
border-top-left-radius: 8rpx;
|
||
border-bottom-left-radius: 8rpx;
|
||
}
|
||
|
||
.u-item-last {
|
||
border-top-right-radius: 8rpx;
|
||
border-bottom-right-radius: 8rpx;
|
||
}
|
||
|
||
.u-item-text {
|
||
transition: all 0.35s;
|
||
color: $u-main-color;
|
||
@include vue-flex;
|
||
align-items: center;
|
||
position: relative;
|
||
z-index: 3;
|
||
}
|
||
</style>
|