微信小程序 自定义组件 标签管理
环境
小程序环境:
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微信开发者工具:RC 1.06.2503281 win32-x64
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基础运行库:3.8.1
概述
基础功能
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标签增删改查:支持添加/删除单个标签、批量删除、重置默认标签
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数据展示:通过对话框展示结构化数据并支持复制
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动画系统:添加/删除时带缩放淡入淡出动画
结构分析(WXML)
数据展示优化
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使用scroll-view应对长内容
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user-select开启文本选择
<!--pages/tabs/tabs.wxml-->
<navigation-bar title="标签管理" back="{{false}}" color="black" background="#FFF"></navigation-bar><view class="container"><!-- 新增输入框区域 --><view class="input-area"><input class="tag-input"placeholder="请输入新标签"value="{{inputValue}}"bindinput="handleInput"bindconfirm="handleAdd"/><button size="mini"class="add-btn"bind:tap="handleAdd">添加标签</button></view><!-- 标签容器 --><view class="tag-container" wx:if="{{tags.length}}"><view wx:for="{{tags}}"wx:key="id"class="tag-item"data-index="{{index}}"animation="{{item.animation}}">{{item.name}}<view class="close-btn" bind:tap="handleClose"data-id="{{item.id}}">×</view></view></view><button class="delete-all-btn" bind:tap="handleDeleteAll">删除全部标签</button><button class="reset-btn" bind:tap="handleReset">重置所有标签</button><button class="reset-btn" bind:tap="handleGetAll">获取数据</button>
</view><mp-dialog title="获取的数据" show="{{dialogShow}}" bindbuttontap="dialogButton" buttons="{{buttons}}"><view class="title"><scroll-view scroll-y="true" class="scroll"><text user-select="true">{{tags_data}}</text></scroll-view></view>
</mp-dialog>
逻辑分析(JS)
数据管理
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ID生成:自增ID保证唯一性
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数据持久化:标签数据仅存内存,页面关闭后丢失
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数据结构:{ id: number, name: string, animation: any }
交互设计
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输入验证:非空校验 + 长度限制(15字)
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防误操作:删除全部需二次确认
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视觉反馈:按钮点击态(opacity变化)、关闭按钮悬浮效果
// pages/tabs/tabs.js
Page({data: {tags: [],nextId: 1,// 输入数据字段inputValue: '',// 标签数据tags_data: null,// 显示/隐藏 对话框dialogShow: false,// 对话框按钮组buttons: [{text: '关闭'}, {text: '复制'}],},onLoad() {this.handleReset()},// 输入框内容变化handleInput(e) {this.setData({inputValue: e.detail.value.trim() // 自动去除首尾空格});},// 添加新标签handleAdd() {const newTag = this.data.inputValue;// 验证输入内容if (!newTag) {wx.showToast({title: '请输入标签内容',icon: 'none'});return;}if (newTag.length > 15) {wx.showToast({title: '请不要输入过长的内容',icon: 'none',duration: 1500});return;}// 创建动画const animation = wx.createAnimation({duration: 400,timingFunction: 'ease-out'});// 初始状态(隐藏状态)animation.opacity(0).scale(0.5).step();// 生成新标签const newItem = {id: this.data.nextId++,name: newTag,animation: animation.export() // 导出动画对象};// 先添加带动画的数据this.setData({tags: [...this.data.tags, newItem],inputValue: ''}, () => {// 在回调中执行显示动画setTimeout(() => {const index = this.data.tags.length - 1;const showAnimation = wx.createAnimation({duration: 400,timingFunction: 'ease-out'});showAnimation.opacity(1).scale(1).step();this.setData({[`tags[${index}].animation`]: showAnimation.export()});// 动画完成后清除动画数据setTimeout(() => {this.setData({[`tags[${index}].animation`]: null});}, 400);}, 50); // 短暂延迟确保初始状态渲染});},// 关闭标签(带动画)handleClose(e) {const id = parseInt(e.currentTarget.dataset.id);const index = this.data.tags.findIndex(item => item.id === id);// 创建动画const animation = wx.createAnimation({duration: 400,timingFunction: 'ease'});animation.opacity(0).scale(0.8).step();// 先执行动画this.setData({[`tags[${index}].animation`]: animation.export()});// 动画完成后移除元素setTimeout(() => {const newTags = this.data.tags.filter(item => item.id !== id);this.setData({ tags: newTags });}, 400);},// 从后往前依次删除标签handleDeleteAll() {if (this.data.tags.length === 0) {wx.showToast({title: '没有可删除的标签',icon: 'none'});return;}wx.showModal({title: '提示',content: '确定要删除所有标签吗?',success: (res) => {if (res.confirm) {this.deleteOneByOne(this.data.tags.length - 1);}}});},// 递归方法:从最后一个开始逐个删除deleteOneByOne(index) {if (index < 0) {return; // 所有标签已删除完毕}const animation = wx.createAnimation({duration: 200,timingFunction: 'ease'});animation.opacity(0).scale(0.8).step();this.setData({[`tags[${index}].animation`]: animation.export()}, () => {setTimeout(() => {// 删除当前标签const newTags = [...this.data.tags];newTags.splice(index, 1);this.setData({ tags: newTags }, () => {// 继续删除前一个标签this.deleteOneByOne(index - 1);});}, 200); // 等待动画完成});},// 重置所有标签handleReset() {this.setData({nextId: 0})this.initTags(['Vue', 'React', 'Angular', 'Flutter', 'UniApp', 'Taro', 'CSDN', '奇妙方程式']);},// 初始化标签方法initTags(labels) {console.log('labels', labels);const tags = labels.map((text, index) => ({id: this.data.nextId++,name: text,animation: null}));this.setData({ tags }, () => {// 在回调中逐个添加动画tags.forEach((_, index) => {setTimeout(() => {this.animateTag(index);}, index * 100); // 每个标签间隔100ms});});},// 执行单个标签的动画animateTag(index) {const animation = wx.createAnimation({duration: 200,timingFunction: 'ease-out'});animation.opacity(0).scale(0.5).step();animation.opacity(1).scale(1).step();this.setData({[`tags[${index}].animation`]: animation.export()});setTimeout(() => {this.setData({[`tags[${index}].animation`]: null});}, 200);},// 获取数据handleGetAll() {let tags = this.data.tags.map(item => ({id: item.id,name: item.name }))console.log('获取的数据', tags);let tags_data = "tags: " + JSON.stringify(tags)this.setData({dialogShow: true,tags_data})},// 对话框 按钮dialogButton(e) {this.setData({dialogShow: false,})let choose = e.detail.item.textif (choose == "复制") {this.copy()}},// 复制 参数信息copy() {wx.setClipboardData({data: this.data.tags_data,success() {wx.getClipboardData({success() {wx.showToast({title: '复制成功',icon: 'success'})}})}})},
});
样式与动画(WXSS)
/* pages/tabs/tabs.wxss */
/* 容器样式 */
.container {padding: 20rpx;
}/* 新增输入区域样式 */
.input-area {display: flex;padding: 30rpx;background: #fff;
}.tag-input {flex: 1;height: 64rpx;padding: 0 20rpx;border: 2rpx solid #eee;border-radius: 8rpx;font-size: 28rpx;margin-right: 20rpx;
}.add-btn {background: #1890ff;color: white;transition: opacity 0.2s;padding: auto;
}.add-btn.active {opacity: 0.8;
}.tag-container {display: flex;flex-wrap: wrap;padding: 30rpx;
}/* 单个标签样式 */
.tag-item {position: relative;background: #e7f3ff;border-radius: 8rpx;padding: 12rpx 50rpx 12rpx 20rpx;color: #1890ff;transition: all 0.4s cubic-bezier(0.18, 0.89, 0.32, 1.28);margin: 10rpx;opacity: 0;
}/* 隐藏状态动画 */
.tag-item.hidden {opacity: 0;transform: scale(0.8);pointer-events: none;
}.close-btn {position: absolute;right: 8rpx;top: 50%;transform: translateY(-50%);width: 32rpx;height: 32rpx;line-height: 32rpx;text-align: center;border-radius: 50%;background: #ff4d4f;color: white;font-size: 24rpx;opacity: 0.8;transition: opacity 0.2s;
}.close-btn.active {opacity: 1;transform: translateY(-50%) scale(0.9);
}.reset-btn {margin: 20rpx auto;width: 70%;background: #1890ff;color: white;
}/* 删除全部按钮样式 */
.delete-all-btn {margin: 20rpx auto;width: 40%;background: #ff4d4f;color: white;
}.title {text-align: left;margin-top: 10px;
}.scroll {height: 300px;width: 100%;margin-bottom: 15px;
}.weui-dialog__btn_primary {background-color: #07c160;color: #fff;
}
json
{"usingComponents": {"navigation-bar": "/components/navigation-bar/navigation-bar","mp-dialog": "weui-miniprogram/dialog/dialog"}
}
部分代码由deepseek辅助生成