本文实例为大家分享了uniapp实现可滑动选项卡的具体代码,供大家参考,具体内容如下
tabControl-tag.vue
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
|
< template name = "tabControl" >
< scroll-view scroll-x = "true" :style = "'background-color:'+bgc+';top:'+top+'px;'" :class = "fixed?'fxied':''" :scroll-left = 'scrollLeft' scroll-with-animation id = "tabcard" >
< view class = "tabList" :style = "isEqually?'display: flex;justify-content: space-between;padding-left:0;':''" >
< view
:class = "'tabItem'+(currentIndex==index?' thisOpenSelect':'')"
:style = "isEqually? 'width:'+windowWidth/values.length+'px;margin-right:0;':''"
v-for = "(item,index) in values"
:id = "'item'+index"
:key = 'index'
@ click = "_onClick(index)" >
< text :style = "(currentIndex==index?'font-size:'+activeSize+'rpx;color:'+activeColor:'font-size:'+itemSize+'rpx')" >{{item}}</ text >
< view class = "activeLine" :style = "{width: lineWidth+'rpx'}" ></ view >
</ view >
</ view >
</ scroll-view >
</ template >
< script >
export default {
name:'tabControl',
props:{
current: {
type: Number,
default: 0
},
values: {
type: Array,
default () {
return []
}
},
bgc:{
type:String,
default:''
},
fixed:{
type:Boolean,
default:false
},
scrollFlag:{
type:Boolean,
default:false
},
lineWidth:{
type:Number,
default: 100
},
itemSize:{
type:Number,
default: 30
},
activeSize:{
type:Number,
default: 32
},
activeColor:{
type:String,
default:''
},
top:{
type:Number,
default: 0
},
isEqually:{
type:Boolean,
default:false
}
},
data() {
return {
currentIndex: 0,
windowWidth:0, //设备宽度
leftList:[], //选项距离左边的距离
widthList:[], //选项宽度
scrollLeft:0, //移动距离
newScroll:0, //上一次移动距离(用来判断是左滑还是右滑)
wornScroll:0, //上一次移动距离(用来判断是左滑还是右滑)
};
},
created(){
},
mounted(){
setTimeout(()=>{
uni.createSelectorQuery().in(this).select("#tabcard").boundingClientRect((res)=>{
this.$emit('getTabCardHeight', {height:res.height})
}).exec()
uni.getSystemInfo({
success: (res)=> {
this.windowWidth = res.windowWidth;
// console.log(this.windowWidth);
this.values.forEach((i,v)=>{
let info = uni.createSelectorQuery().in(this);
info.select("#item"+v).boundingClientRect((res)=>{
// 获取第一个元素到左边的距离
// if(v==0){
// this.startLenght = res.left
// }
this.widthList.push(res.width)
this.leftList.push(res.left)
}).exec()
})
// console.log(this.leftList)
// console.log(this.widthList)
}
});
})
},
created() {
this.currentIndex = this.current
if(this.scrollFlag){
setTimeout(()=>{
this.tabListScroll(this.current)
},300)
}
},
watch: {
current(val) {
if (val !== this.currentIndex) {
this.currentIndex = val
if(this.scrollFlag){
this.tabListScroll(val)
}
}
},
},
methods: {
_onClick(index) {
if (this.currentIndex !== index) {
this.currentIndex = index
this.$emit('clickItem', {currentIndex:index})
// 开启滚动
if(this.scrollFlag){
this.tabListScroll(index)
}
}
},
// 选项移动
tabListScroll(index){
let scoll = 0;
this.wornScroll = index;
// this.wornScroll-this.newScroll>0 在向左滑 ←←←←←
if(this.wornScroll-this.newScroll>0){
for(let i = 0;i< this.leftList.length ;i++){
if(i>1&&i==this.currentIndex){
scoll = this.leftList[i-1]
}
}
// console.log('在向左滑',scoll)
}else{
if(index>1){
for(let i = 0;i< this.leftList.length ;i++){
if(i<index-1){
scoll = this .leftList[i]
}
}
}else{
scoll = 0
}
// console.log('在向右滑')
}
this.newScroll = this.wornScroll;
this.scrollLeft = scoll ;
}
}
}
</script>
< style lang = "less" scoped>
.fxied{
position: fixed;
z-index: 2;
}
.tabList{
padding-top: 24rpx;
padding-left: 24rpx;
padding-bottom: 8rpx;
white-space: nowrap;
text-align: center;
.tabItem{
margin-right: 60rpx;
display: inline-block;
position: relative;
text{
// font-size: 30rpx;
line-height: 44rpx;
color: #666;
transition: all 0.3s ease 0s;
}
.activeLine{
// width: 48rpx;
height: 8rpx;
border-radius: 4rpx;
background-color: #F57341;
margin-top: 8rpx;
margin-left: 50%;
transform: translateX(-50%);
opacity: 0;
transition: all 0.3s ease 0s;
}
}
.tabItem:first-child{
// margin-left: 22rpx;
}
.tabItem:last-child{
margin-right: 24rpx;
}
.thisOpenSelect{
text{
color: #333;
font-weight:600;
// font-size: 32rpx;
}
.activeLine{
opacity: 1;
}
}
}
</ style >
|
页面引用
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
|
< template >
< view class = "page" >
< tabControl :current = "current" :values = "items" bgc = "#fff" :fixed = "true" :scrollFlag = "true" :isEqually = "false" @ clickItem = "onClickItem" ></ tabControl >
<!-- 使用 swiper 配合 滑动切换 -->
< swiper class = "swiper" style = "height: 100%;" @ change = "scollSwiper" :current = "current" >
< swiper-item v-for = "(item, index) in items" :key = "index" >
<!-- 使用 scroll-view 来滚动内容区域 -->
< scroll-view scroll-y = "true" style = "height: 100%;" >{{ item }}</ scroll-view >
</ swiper-item >
</ swiper >
</ view >
</ template >
< script >
import tabControl from '@/components/tabControl-tag/tabControl-tag.vue';
export default {
components: { tabControl },
data() {
return {
items: ['业绩统计', '选项卡2', '选项卡3', '选项卡4', '选项卡5'],
current: 0
};
},
onLoad() {},
methods: {
onClickItem(val) {
this.current = val.currentIndex;
},
scollSwiper(e) {
this.current = e.target.current;
}
}
};
</ script >
< style >
page {
height: 100%;
}
.page {
padding-top: 98rpx;
height: 100%;
}
</ style >
|
1.使用方式:
scrollFlag --是否开启选项滚动(true -开启 false -关闭) 根据自己需求如果选项长度超出屏幕长度 建议开启
fixed --固定定位
bgc --背景色
values --选项数组
current --当前选中选项索引
isEqually --是否开启选项平分宽度(true,false)
lineWidth --下划线长度(在非平分选项状态下 可能会影响选项盒子的宽度-自行调试想要的效果,默认为48rpx)
itemSize --未选中选项字体大小(默认为30rpx)
activeSize --选中选项字体大小(默认为32rpx)
activeColor --选中选项字体颜色(默认#333)
top --选项卡固定定位 自定义top距离
注意:
使用fixed固定头部的时候 要将页面整体padding-top:98rpx;不然会盖住内容区域。
使用swiper实现滑动切换时 要将page 高度设置100% swiper高度100% 才可以全屏滑动切换
以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持服务器之家。
原文链接:https://blog.csdn.net/weixin_44816309/article/details/106661706