uni-app内置组件就是为手机优化的。但内置组件只能满足基础需求，更多场景，需要扩展组件。
扩展组件是基于内置组件的二次封装，从性能上来讲，扩展组件的性能略低于内置组件，所以开发者切勿抛弃内置组件，直接全套用三方UI组件库。
uni-app的插件市场，有很多扩展组件，有的是单独的，有的是成套的。有些开发者喜欢成套的组件，但注意成套扩展组件也不可能覆盖所有需求，很多场景还是需要单独下载专业组件。
uniapp创建项目流程
uniapp创建项目流程步骤如下:
第一步:新建项目 打开Hbuild 点击文件-新建-项目 填写你的项目名称和存放目录,然后选择你需要的模板和 vue 的版本 一般是选择默认模板或者 uni-ui 项目(uni-ui 是一个 uni 的 ui 组件库,还是很好用的),然后点击下面的创建。
第二步:运行项目。
填写AppID 在新建好的项目目录中找到 manifest.json 文件-微信小程序配置-填写 AppID 运行项目 运行-运行到小程序模拟器-微信开发者工具 成功运行(微信开发者工具需要打开服务端口) 如果没有成功打开微信开发者工具,需要在微信开发者工具中设置开启服务端口。
uniapp适合开发平板吗
是的，uniapp可以用于开发平板应用程序。Uniapp是一个跨平台的开发框架，可用于开发iOS和Android平台的应用程序。无论是在手机还是平板电脑上，Uniapp都可以提供良好的用户体验。通过uniapp，开发者可以使用HTML5和Vue.js开发应用程序，而不需要为不同平台编写不同的代码。
uiniapp是用什么框架
uni-app 是一个基于 Vue.js 框架的跨平台应用开发框架，它可以将同一份代码快速生成多个平台（包括微信小程序、支付宝小程序、H5、App等）的应用程序。可以大大提高开发效率，因为开发人员只需编写一次代码，就可以在多个平台上运行。同时，了丰富的组件和 API，方便开发者快速构建高质量的跨平台应用程序。此外，uni-app 还支持自定义主题、多语言、自动化构建等功能，使得开发者可以更加灵活地开发应用程序。
uniapp下拉框组件
<template xlang="wxml">
<view class="tki-tree">
<view class="tki-tree-mask" :class="{'show':showTree}" @tap="_cancel"></view>
<view class="tki-tree-cnt" :class="{'show':showTree}">
<view class="tki-tree-bar">
<view class="tki-tree-bar-cancel" :style="{'color':cancelColor}" hover-class="hover-c" @tap="_cancel">取消</view>
<view class="tki-tree-bar-title" :style="{'color':titleColor}">{{title}}</view>
<view class="tki-tree-bar-confirm" :style="{'color':confirmColor}" hover-class="hover-c" @tap="_confirm">确定</view>
</view>
<view class="tki-tree-view">
<scroll-view class="tki-tree-view-sc" :scroll-y="true">
<block v-for="(item, index) in treeList" :key="index">
<view class="tki-tree-item" :style="[{
paddingLeft: item.rank*15 + 'px',
zIndex: item.rank*-1 +50
}]"
:class="{
border: border === true,
show: item.show,
last: item.lastRank,
showchild: item.showChild,
open: item.open,
}">
<view class="tki-tree-label" @tap.stop="_treeItemTap(item, index)">
<image class="tki-tree-icon" :src="item.lastRank ? lastIcon : item.showChild ? currentIcon : defaultIcon"></image>
{{item.name}}
</view>
<view class="tki-tree-check" @tap.stop="_treeItemSelect(item, index)" v-if="selectParent?true:item.lastRank">
<view class="tki-tree-check-yes" v-if="item.checked" :class="{'radio':!multiple}" :style="{'border-color':confirmColor}">
<view class="tki-tree-check-yes-b" :style="{'background-color':confirmColor}"></view>
</view>
<view class="tki-tree-check-no" v-else :class="{'radio':!multiple}" :style="{'border-color':confirmColor}"></view>
</view>
</view>
</block>
</scroll-view>
</view>
</view>
</view>
</template>
<script>
export default {
name: "tki-tree",
props: {
range: {
type: Array,
default: function() {
return []
}
},
idKey: {
type: String,
default: 'id'
},
rangeKey: {
type: String,
default: 'label'
},
title: {
type: String,
default: ''
},
multiple: { // 是否可以多选
type: Boolean,
default: false
// default: true
},
selectParent: { //是否可以选父级
type: Boolean,
default: false
},
foldAll: { //折叠时关闭所有已经打开的子集，再次打开时需要一级一级打开
type: Boolean,
default: false
},
confirmColor: { // 确定按钮颜色
type: String,
default: '' // #07bb07
},
cancelColor: { // 取消按钮颜色
type: String,
default: '' // #757575
},
titleColor: { // 标题颜色
type: String,
default: '' // #757575
},
currentIcon: { // 展开时候的ic
type: String,
default: 'data:image/png;base64,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'
},
defaultIcon: { // 折叠时候的ic
type: String,
default: 'data:image/png;base64,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'
},
lastIcon: { // 没有子集的ic
type: String,
default: ''
},
border: { // 是否有分割线
type: Boolean,
default: false
},
},
data() {
return {
showTree: false,
treeList: [],
selectIndex: -1,
idArr:[],
}
},
computed: {},
methods: {
_show() {
this.showTree = true
},
_hide() {
this.showTree = false
},
_cancel() {
this._hide()
this.$emit("cancel", '');
},
_confirm() {
// 处理所选数据
let rt = [],
obj = {};
this.treeList.forEach((v, i) => {
if (this.treeList[i].checked) {
obj = {}
obj.parents = this.treeList[i].parents
obj = Object.assign(obj, this.treeList[i].source)
// 移除子元素
delete obj.children
rt.push(obj)
}
})
this._hide()
this.$emit("confirm", rt);
},
//扁平化树结构
_renderTreeList(list = [], rank = 0, parentId = [], parents = []) {
list.forEach(item => {
this.treeList.push({
id: item[this.idKey],
name: item[this.rangeKey],
source: item,
parentId, // 父级id数组
parents, // 父级id数组
rank, // 层级
showChild: false, //子级是否显示
open: false, //是否打开
show: rank === 0, // 自身是否显示
hideArr: [],
orChecked: item.checked ? item.checked : false,
checked: item.checked ? item.checked : false,
})
if (Array.isArray(item.children) && item.children.length > 0) {
// console.log(item)
let parentid = [...parentId],
parentArr = [...parents],
childrenid = [...childrenid];
delete parentArr.children
parentid.push(item[this.idKey]);
parentArr.push({
[this.idKey]: item[this.idKey],
[this.rangeKey]: item[this.rangeKey]
})
this._renderTreeList(item.children, rank + 1, parentid, parentArr);
} else {
this.treeList[this.treeList.length - 1].lastRank = true;
}
})
// console.log(list)
},
// 处理默认选择
_defaultSelect() {
this.treeList.forEach((v, i) => {
// if (v.checked) {
// this.treeList.forEach((v2, i2) => {
// if (v.parentId.toString().indexOf(v2.parentId.toString()) >= 0) {
// console.log(v2,v.parentId.toString().indexOf(v2.parentId.toString()));
// v2.show = true
// // if(v2.rank>0){
// // v2.show=false
// // }
// if (v.parentId.includes(v2.id)) {
// v2.showChild = true;
// v2.open = true;
// }
// }
// })
// }
})
},
// 点击
_treeItemTap(item, index) {
console.log(item, index,'点击');
if (item.lastRank === true) {
//点击最后一级时触发事件
this.treeList[index].checked = !this.treeList[index].checked
this._fixMultiple(index)
return;
}
let list = this.treeList;
let id = item.id;
item.showChild = !item.showChild;
item.open = item.showChild ? true : !item.open;
list.forEach((childItem, i) => {
if (item.showChild === false) {
//隐藏所有子级
if (!childItem.parentId.includes(id)) {
return;
}
if (!this.foldAll) {
if (childItem.lastRank !== true && !childItem.open) {
childItem.showChild = false;
}
// 为隐藏的内容添加一个标记
if (childItem.show) {
childItem.hideArr[item.rank] = id
}
} else {
if (childItem.lastRank !== true) {
childItem.showChild = false;
}
}
childItem.show = false;
} else {
// 打开子集
if (childItem.parentId[childItem.parentId.length - 1] === id) {
childItem.show = true;
}
// 打开被隐藏的子集
if (childItem.parentId.includes(id) && !this.foldAll) {
// console.log(childItem.hideArr)
if (childItem.hideArr[item.rank] === id) {
childItem.show = true;
if (childItem.open && childItem.showChild) {
childItem.showChild = true
} else {
childItem.showChild = false
}
childItem.hideArr[item.rank] = null
}
// console.log(childItem.hideArr)
}
}
})
// console.log(this.treeList)
},
_treeItemSelect(item, index) {
// console.log(item, index,'点击事件1');
// console.log(this.treeList,'点击事件2');
this.treeList[index].checked = !this.treeList[index].checked
this._fixMultiple(index)
// console.log(item.id, index,this.treeList[index].checked,9);
// this.$emit('chenge',item,this.treeList[index].checked)
this._chenge(item,this.treeList[index].checked)
},
_chenge(e, e1){
this.idArr.push(e.id)
if(e.source.children==undefined){
this.treeList.forEach((k,i)=>{
this.idArr.forEach((k1,i1)=>{
if(k.id==k1 && e1==true){
this.treeList[i].checked=true
}else if(k.id==k1 && e1==false){
this.treeList[i].checked=false
}
})
})
if(e.checked){
e.parentId.forEach((k,i)=>{
this.treeList.forEach((k1,i1)=>{
if(k1.id==k){
this.treeList[i1].checked=true
}
})
})
}else{
e.parentId.forEach((k,i)=>{
this.treeList.forEach((k1,i1)=>{
if(k1.id==k){
this.treeList[i1].checked=false
}
})
})
}
this.treeList.forEach((k1,i1)=>{
if(k1.checked){
k1.parentId.forEach((k2,i2)=>{
this.treeList.forEach((k3,i3)=>{
if(k3.id==k2){
this.treeList[i3].checked=true
}
})
})
}
})
this.idArr=[]
return
}
this.handkeCheck1(e.source.children)
this.treeList.forEach((k,i)=>{
this.idArr.forEach((k1,i1)=>{
if(k.id==k1 && e1==true){
this.treeList[i].checked=true
}else if(k.id==k1 && e1==false){
this.treeList[i].checked=false
}
})
})
if(e.checked){
e.parentId.forEach((k,i)=>{
this.treeList.forEach((k1,i1)=>{
if(k1.id==k){
this.treeList[i1].checked=true
}
})
})
}else{
e.parentId.forEach((k,i)=>{
this.treeList.forEach((k1,i1)=>{
if(k1.id==k){
this.treeList[i1].checked=false
}
})
})
}
this.treeList.forEach((k1,i1)=>{
if(k1.checked){
k1.parentId.forEach((k2,i2)=>{
this.treeList.forEach((k3,i3)=>{
if(k3.id==k2){
this.treeList[i3].checked=true
}
})
})
}
})
this.idArr=[]
// console.log(e,'item');
// console.log(this.range,'原始');
// console.log(this.treeList,'初始化');
// this.handkeCheck(this.range, e, e1)
},
handkeCheck1(list){
list.forEach((k,i)=>{
this.idArr.push(k.id)
if(k.children==undefined)return
this.handkeCheck1(k.children)
})
},
handkeCheck(list, e, e1) {
// console.log(list,'list');
// console.log(e.id,'e');
// console.log(e1,'e1');
// 点击数据权限
list.forEach((k, i) => {
if (k.children != undefined) {
if (k.id == e.id && e.checked == true) {
k.checked = true
// console.log(k.id,'第一');
this.handkeChecks(k.children, e, e1)
} else if (k.id == e.id && e.checked == false) {
k.checked = false
this.handkeChecks(k.children, e, e1)
} else {
this.handkeCheck(k.children, e, e1)
}
} else {
// console.log(1);
if (k.id == e.id && e.checked == true) {
k.checked = true
} else if (k.id == e.id && e.checked == false) {
k.checked = false
}
}
})
// console.log(this.treeList);
// this._reTreeList()
// this._initTree(list)
// this._renderTreeList(list)
// list.splice()
// this.lists = list
// this.$forceUpdate()
// console.log(this.lists,'执行了强制刷新');
},
handkeChecks(list, e, e1) {
// console.log(list, e, e1,'循环执行');
// console.log(list,'list','循环执行');
// console.log(e.id,'e','循环执行');
// console.log(e1,'e1','循环执行');
list.forEach((k, i) => {
if (k.children != undefined) {
if (e.checked) {
k.checked = true
this.handkeChecks(k.children, e, e1)
} else {
k.checked = false
this.handkeChecks(k.children, e, e1)
}
} else {
// console.log(k, 'else');
if (e.checked) {
k.checked = true
} else {
k.checked = false
}
}
})
},
// 处理单选多选
_fixMultiple(index) {
// console.log(index,'33333');
if (!this.multiple) {
// 如果是单选
this.treeList.forEach((v, i) => {
if (i != index) {
this.treeList[i].checked = false
} else {
this.treeList[i].checked = true
// console.log(index,'4444');
}
})
}
},
// 重置数据
_reTreeList() {
this.treeList.forEach((v, i) => {
this.treeList[i].checked = v.orChecked
})
},
_initTree(range = this.range){
// console.log('接收值的事件');
this.treeList = [];
this._renderTreeList(range);
this.$nextTick(() => {
this._defaultSelect(range)
})
}
},
watch: {
range(list) {
// console.log('监视值的改变1');
this._initTree(list);
},
multiple() {
// console.log('监视值的改变2');
if (this.range.length) {
this._reTreeList();
}
},
selectParent() {
// console.log('监视值的改变3');
if (this.range.length) {
this._reTreeList();
}
},
deep: true, // 深度监听
immediate: true, // 初次监听即执行
},
mounted() {
this._initTree();
}
}
</script>
<style scoped>
@import "./style.css";
</style>css模块
.tki-tree-mask {
position: fixed;
top: 0rpx;
right: 0rpx;
bottom: 0rpx;
left: 0rpx;
z-index: 9998;
background-color: rgba(0, 0, 0, 0.6);
opacity: 0;
transition: all 0.3s ease;
visibility: hidden;
}
.tki-tree-mask.show {
visibility: visible;
opacity: 1;
}
.tki-tree-cnt {
position: fixed;
top: 0rpx;
right: 0rpx;
bottom: 0rpx;
left: 0rpx;
z-index: 9999;
top: 225rpx;
transition: all 0.3s ease;
transform: translateY(100%);
}
.tki-tree-cnt.show {
transform: translateY(0);
}
.tki-tree-bar {
background-color: #fff;
height: 72rpx;
padding-left: 20rpx;
padding-right: 20rpx;
display: flex;
justify-content: space-between;
align-items: center;
box-sizing: border-box;
border-bottom-width: 1rpx !important;
border-bottom-style: solid;
border-bottom-color: #f5f5f5;
font-size: 32rpx;
color: #757575;
line-height: 1;
}
.tki-tree-bar-confirm {
color: #07bb07;
}
.tki-tree-view {
position: absolute;
top: 0rpx;
right: 0rpx;
bottom: 0rpx;
left: 0rpx;
top: 72rpx;
background-color: #fff;
padding-top: 20rpx;
padding-right: 20rpx;
padding-bottom: 20rpx;
padding-left: 20rpx;
}
.tki-tree-view-sc {
height: 100%;
overflow: hidden;
}
.tki-tree-item {
display: flex;
justify-content: space-between;
align-items: center;
font-size: 26rpx;
color: #757575;
line-height: 1;
height: 0;
opacity: 0;
transition: 0.2s;
position: relative;
overflow: hidden;
}
.tki-tree-item.show {
height: 80rpx;
opacity: 1;
}
.tki-tree-item.showchild:before {
transform: rotate(90deg);
}
.tki-tree-item.last:before {
opacity: 0;
}
.tki-tree-icon {
width: 26rpx;
height: 26rpx;
margin-right: 8rpx;
}
.tki-tree-label {
flex: 1;
display: flex;
align-items: center;
height: 100%;
line-height: 1.2;
}
.tki-tree-check {
width: 40px;
height: 40px;
display: flex;
justify-content: center;
align-items: center;
}
.tki-tree-check-yes,
.tki-tree-check-no {
width: 20px;
height: 20px;
border-top-left-radius: 20%;
border-top-right-radius: 20%;
border-bottom-right-radius: 20%;
border-bottom-left-radius: 20%;
border-top-width: 1rpx;
border-left-width: 1rpx;
border-bottom-width: 1rpx;
border-right-width: 1rpx;
border-style: solid;
border-color: #07bb07;
display: flex;
justify-content: center;
align-items: center;
box-sizing: border-box;
}
.tki-tree-check-yes-b {
width: 12px;
height: 12px;
border-top-left-radius: 20%;
border-top-right-radius: 20%;
border-bottom-right-radius: 20%;
border-bottom-left-radius: 20%;
background-color: #07bb07;
}
.tki-tree-check .radio {
border-top-left-radius: 50%;
border-top-right-radius: 50%;
border-bottom-right-radius: 50%;
border-bottom-left-radius: 50%;
}
.tki-tree-check .radio .tki-tree-check-yes-b {
border-top-left-radius: 50%;
border-top-right-radius: 50%;
border-bottom-right-radius: 50%;
border-bottom-left-radius: 50%;
}
.hover-c {
opacity: 0.6;
}版权声明：【uniapp组件库有哪些，uniapp用什么组件库】版权归原作者所有，本文由作者：【隔壁老王】用户自发贡献上传，该文观点仅代表作者本人，本站仅提供信息存储空间服务，不拥有所有权，不承担相关法律责任，如发现本站有涉嫌抄袭侵权/违法违规的内容，请发送邮件至举报，一经查实，本站将立刻删除，如若转载，请注明出处：https://www.intostarry.com/jrzy/142.html
