鸿蒙OSUniApp滑动锁屏实战：打造流畅优雅的移动端解锁体验#三方框架 #Uniapp

UniApp滑动锁屏实战：打造流畅优雅的移动端解锁体验

引言

移动应用的安全性和用户体验是开发中不可忽视的重要环节。滑动锁屏作为一种直观、安全且用户友好的解锁方式，在移动应用中得到广泛应用。本文将深入探讨如何使用UniApp框架实现一个功能完备、动画流畅的滑动锁屏功能，并着重考虑HarmonyOS平台的适配。

技术方案设计

1. 核心技术栈

前端框架：UniApp + Vue3 + TypeScript
状态管理：Pinia
手势处理：uni.createAnimation + 自定义手势库
数据存储：uni.storage + 加密存储
动画方案：CSS3 + requestAnimationFrame

2. 功能规划

滑动解锁界面
图案设置与验证
动画效果与交互反馈
安全性保障
失败处理机制

核心代码实现

1. 滑动锁屏组件

<!-- components/SlideLock.vue -->
<template><view class="slide-lock" :class="{ 'dark-mode': isDarkMode }"><!-- 锁屏界面 --><view class="lock-screen" :style="lockScreenStyle"><!-- 时间日期显示 --><view class="time-display"><text class="time">{{ currentTime }}</text><text class="date">{{ currentDate }}</text></view><!-- 滑动区域 --><view class="slide-area"@touchstart="handleTouchStart"@touchmove="handleTouchMove"@touchend="handleTouchEnd"><view class="slide-handle":style="handleStyle":animation="handleAnimation"><view class="handle-icon"><text class="iconfont icon-unlock"></text></view><text class="handle-text">{{ slideText }}</text></view><!-- 轨道背景 --><view class="slide-track"><view class="track-highlight":style="{ width: slideProgress + '%' }"></view></view></view><!-- 解锁提示 --><view class="unlock-tips" v-if="showTips">{{ unlockTips }}</view></view></view>
</template><script lang="ts" setup>
import { ref, computed, onMounted, onUnmounted } from 'vue'
import { useThemeStore } from '@/stores/theme'
import { useSecurityStore } from '@/stores/security'
import { createAnimation } from '@/utils/animation'
import { formatTime, formatDate } from '@/utils/date'
import type { TouchEvent } from '@dcloudio/uni-app'// 状态管理
const themeStore = useThemeStore()
const securityStore = useSecurityStore()// 响应式数据
const isDarkMode = computed(() => themeStore.isDarkMode)
const currentTime = ref(formatTime(new Date()))
const currentDate = ref(formatDate(new Date()))
const slideProgress = ref(0)
const slideText = ref('向右滑动解锁')
const showTips = ref(false)
const unlockTips = ref('')// 滑动相关变量
const startX = ref(0)
const currentX = ref(0)
const isSliding = ref(false)
const slideThreshold = 0.75 // 解锁阈值
const trackWidth = ref(0)
const handleAnimation = ref(null)// 计算样式
const handleStyle = computed(() => ({transform: `translateX(${slideProgress.value}%)`,opacity: 1 - slideProgress.value / 200
}))const lockScreenStyle = computed(() => ({backgroundColor: isDarkMode.value ? '#1a1a1a' : '#ffffff'
}))// 初始化
onMounted(() => {initSlideTrack()startTimeUpdate()initAnimation()
})onUnmounted(() => {stopTimeUpdate()
})// 初始化滑动区域
const initSlideTrack = () => {const query = uni.createSelectorQuery().in(this)query.select('.slide-track').boundingClientRect(data => {trackWidth.value = data.width}).exec()
}// 初始化动画实例
const initAnimation = () => {handleAnimation.value = createAnimation({duration: 300,timingFunction: 'ease-out'})
}// 更新时间显示
let timeTimer: number
const startTimeUpdate = () => {timeTimer = setInterval(() => {const now = new Date()currentTime.value = formatTime(now)currentDate.value = formatDate(now)}, 1000)
}const stopTimeUpdate = () => {clearInterval(timeTimer)
}// 触摸事件处理
const handleTouchStart = (e: TouchEvent) => {const touch = e.touches[0]startX.value = touch.clientXcurrentX.value = touch.clientXisSliding.value = trueshowTips.value = false
}const handleTouchMove = (e: TouchEvent) => {if (!isSliding.value) returnconst touch = e.touches[0]const deltaX = touch.clientX - startX.value// 计算滑动进度slideProgress.value = Math.min(100, Math.max(0, (deltaX / trackWidth.value) * 100))// 更新滑块文本if (slideProgress.value > slideThreshold * 100) {slideText.value = '松开即可解锁'} else {slideText.value = '向右滑动解锁'}// 应用动画handleAnimation.value.translateX(slideProgress.value + '%').opacity(1 - slideProgress.value / 200).step()
}const handleTouchEnd = async () => {if (!isSliding.value) returnisSliding.value = falseif (slideProgress.value >= slideThreshold * 100) {// 解锁成功await handleUnlockSuccess()} else {// 重置滑块resetSlideHandle()}
}// 解锁成功处理
const handleUnlockSuccess = async () => {try {await securityStore.unlock()// 完成解锁动画handleAnimation.value.translateX('100%').opacity(0).step()// 触发解锁成功事件emit('unlock-success')} catch (error) {showUnlockError(error.message)resetSlideHandle()}
}// 重置滑块位置
const resetSlideHandle = () => {slideProgress.value = 0slideText.value = '向右滑动解锁'handleAnimation.value.translateX('0%').opacity(1).step()
}// 显示错误提示
const showUnlockError = (message: string) => {unlockTips.value = messageshowTips.value = truesetTimeout(() => {showTips.value = false}, 3000)
}// 事件声明
const emit = defineEmits<{(e: 'unlock-success'): void
}>()
</script><style lang="scss">
.slide-lock {position: fixed;top: 0;left: 0;width: 100%;height: 100%;z-index: 999;.lock-screen {width: 100%;height: 100%;display: flex;flex-direction: column;align-items: center;justify-content: space-between;padding: 60rpx 40rpx;transition: background-color 0.3s;.time-display {text-align: center;margin-top: 100rpx;.time {font-size: 80rpx;font-weight: 200;color: var(--text-primary);}.date {font-size: 32rpx;color: var(--text-secondary);margin-top: 20rpx;}}.slide-area {position: relative;width: 100%;height: 100rpx;margin-bottom: 100rpx;.slide-track {position: absolute;left: 0;right: 0;height: 100%;background: var(--track-bg);border-radius: 50rpx;overflow: hidden;.track-highlight {height: 100%;background: var(--primary-color);transition: width 0.3s;}}.slide-handle {position: absolute;left: 0;top: 0;width: 100rpx;height: 100%;display: flex;align-items: center;justify-content: center;background: #fff;border-radius: 50%;box-shadow: 0 4rpx 16rpx rgba(0, 0, 0, 0.1);z-index: 1;.handle-icon {font-size: 40rpx;color: var(--primary-color);}.handle-text {position: absolute;left: 120rpx;font-size: 28rpx;color: var(--text-secondary);white-space: nowrap;}}}.unlock-tips {position: absolute;bottom: 200rpx;left: 50%;transform: translateX(-50%);padding: 20rpx 40rpx;background: rgba(0, 0, 0, 0.7);color: #fff;border-radius: 8rpx;font-size: 28rpx;animation: fadeIn 0.3s;}}&.dark-mode {--text-primary: #fff;--text-secondary: rgba(255, 255, 255, 0.7);--track-bg: rgba(255, 255, 255, 0.1);--primary-color: #409eff;.slide-handle {background: #2c2c2c;}}
}@keyframes fadeIn {from {opacity: 0;transform: translate(-50%, 20rpx);}to {opacity: 1;transform: translate(-50%, 0);}
}
</style>

2. 动画工具类

// utils/animation.ts
interface AnimationOptions {duration?: numbertimingFunction?: stringdelay?: numbertransformOrigin?: string
}export const createAnimation = (options: AnimationOptions = {}) => {const {duration = 400,timingFunction = 'linear',delay = 0,transformOrigin = '50% 50% 0'} = optionsreturn uni.createAnimation({duration,timingFunction,delay,transformOrigin})
}export const easeOutCubic = (t: number): number => {return 1 - Math.pow(1 - t, 3)
}export const easeInOutCubic = (t: number): number => {return t < 0.5? 4 * t * t * t: 1 - Math.pow(-2 * t + 2, 3) / 2
}

3. 安全存储工具

// utils/secure-storage.ts
import CryptoJS from 'crypto-js'const SECRET_KEY = 'your-secret-key'export class SecureStorage {static setItem(key: string, value: any): void {try {const data = JSON.stringify(value)const encrypted = CryptoJS.AES.encrypt(data, SECRET_KEY).toString()uni.setStorageSync(key, encrypted)} catch (error) {console.error('SecureStorage: Failed to set item', error)}}static getItem<T>(key: string): T | null {try {const encrypted = uni.getStorageSync(key)if (!encrypted) return nullconst decrypted = CryptoJS.AES.decrypt(encrypted, SECRET_KEY).toString(CryptoJS.enc.Utf8)return JSON.parse(decrypted)} catch (error) {console.error('SecureStorage: Failed to get item', error)return null}}static removeItem(key: string): void {try {uni.removeStorageSync(key)} catch (error) {console.error('SecureStorage: Failed to remove item', error)}}
}