Fix: iOS Safari 双击缩放问题 - UniApp H5 专用解决方案
问题描述: - 用户在 iOS Safari 上快速点击加分/减分按钮时触发页面缩放 - 影响用户体验,导致操作困难 解决方案: 1. 全局事件拦截(index.html) - 拦截 touchstart/touchend 事件,检测快速连续触摸(<350ms) - 完全禁用 dblclick 和 gesture 事件 - 使用 MutationObserver 动态监听 DOM 变化 - 添加 CSS 强制禁用缩放 2. 组件级优化(modify-score.vue) - 使用 touchstart/touchend 替代 click 事件 - 添加 300ms 防抖机制,忽略快速连续触摸 - 实现长按连续加减分功能(500ms 后每 100ms 触发一次) - H5 平台条件编译,添加原生事件监听器 - 清理定时器,防止内存泄漏 3. UniApp 特性应用 - 使用条件编译 #ifdef H5 针对 H5 平台特殊处理 - 利用 $nextTick 确保 DOM 渲染完成后添加事件监听 - 保持跨平台兼容性(小程序、App 不受影响) 技术要点: - touch-action: none 禁用触摸动作 - event.preventDefault() 阻止默认行为 - capture: true 在捕获阶段拦截事件 - passive: false 允许调用 preventDefault() 测试建议: - 在 iOS Safari 上快速点击按钮,验证不再缩放 - 测试长按功能是否正常工作 - 验证其他平台(微信小程序、Android)不受影响 🤖 Generated with Claude Code Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
This commit is contained in:
@@ -50,13 +50,12 @@
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</view>
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<view class="score-control">
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<!-- 减分按钮 - 使用 catchtouchstart 阻止事件冒泡 -->
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<view
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class="control-btn decrease"
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@touchstart.stop.prevent="handleDecrease"
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@touchmove.stop.prevent="noop"
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@touchend.stop.prevent="noop"
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@touchcancel.stop.prevent="noop"
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@click.stop.prevent="noop"
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@touchstart="onDecreaseStart"
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@touchend="onDecreaseEnd"
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@touchcancel="onTouchCancel"
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>
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<text class="btn-symbol">-</text>
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<text class="btn-value">-0.001</text>
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@@ -67,22 +66,17 @@
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<text class="no-modify-text">可不改</text>
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</view>
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<!-- 加分按钮 - 使用 catchtouchstart 阻止事件冒泡 -->
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<view
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class="control-btn increase"
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@touchstart.stop.prevent="handleIncrease"
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@touchmove.stop.prevent="noop"
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@touchend.stop.prevent="noop"
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@touchcancel.stop.prevent="noop"
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@click.stop.prevent="noop"
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@touchstart="onIncreaseStart"
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@touchend="onIncreaseEnd"
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@touchcancel="onTouchCancel"
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>
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<text class="btn-symbol">+</text>
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<text class="btn-value">+0.001</text>
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</view>
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</view>
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<!-- <view class="modify-tip">
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裁判长修改:保留3位小数点,超过上限或下限时,按钮置灰
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</view> -->
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</view>
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<!-- 备注 -->
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@@ -129,7 +123,14 @@ export default {
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note: '',
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minScore: 5.0,
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maxScore: 10.0,
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isProcessing: false
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// 防止双击的状态管理
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isTouching: false,
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touchTimer: null,
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lastTouchTime: 0,
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// 长按相关
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longPressTimer: null,
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longPressInterval: null,
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isLongPressing: false
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}
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},
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@@ -139,7 +140,7 @@ export default {
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const globalData = app.globalData || {}
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// 获取当前选手信息(从 score-list-multi 页面传递)
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const currentAthlete = globalData.currentAthlete || {}
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const currentAthlete = globalData.currentAthlete ||
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// 获取裁判长ID
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this.modifierId = globalData.judgeId
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@@ -156,9 +157,151 @@ export default {
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if (currentAthlete.athleteId) {
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await this.loadScoreDetail(currentAthlete.athleteId)
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}
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// H5 平台特殊处理:禁用双击缩放
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// #ifdef H5
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this.disableDoubleTapZoom()
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// #endif
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},
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onUnload() {
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// 清理定时器
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this.clearAllTimers()
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},
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methods: {
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// #ifdef H5
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disableDoubleTapZoom() {
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// 在 H5 环境下,添加额外的事件监听来防止双击缩放
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this.$nextTick(() => {
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const decreaseBtn = document.querySelector('.control-btn.decrease')
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const increaseBtn = document.querySelector('.control-btn.increase')
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const preventZoom = (e) => {
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e.preventDefault()
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e.stopPropagation()
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e.stopImmediatePropagation()
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return false
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}
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if (decreaseBtn) {
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decreaseBtn.addEventListener('touchstart', preventZoom, { passive: false, capture: true })
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decreaseBtn.addEventListener('touchend', preventZoom, { passive: false, capture: true })
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decreaseBtn.addEventListener('touchmove', preventZoom, { passive: false, capture: true })
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decreaseBtn.addEventListener('click', preventZoom, { passive: false, capture: true })
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}
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if (increaseBtn) {
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increaseBtn.addEventListener('touchstart', preventZoom, { passive: false, capture: true })
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increaseBtn.addEventListener('touchend', preventZoom, { passive: false, capture: true })
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increaseBtn.addEventListener('touchmove', preventZoom, { passive: false, capture: true })
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increaseBtn.addEventListener('click', preventZoom, { passive: false, capture: true })
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}
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})
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},
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// #endif
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clearAllTimers() {
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if (this.touchTimer) {
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clearTimeout(this.touchTimer)
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this.touchTimer = null
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}
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if (this.longPressTimer) {
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clearTimeout(this.longPressTimer)
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this.longPressTimer = null
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}
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if (this.longPressInterval) {
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clearInterval(this.longPressInterval)
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this.longPressInterval = null
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}
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},
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// 减分按钮 - touchstart
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onDecreaseStart(e) {
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e.preventDefault()
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e.stopPropagation()
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const now = Date.now()
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// 防止快速连续触摸(300ms内的触摸被忽略)
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if (now - this.lastTouchTime < 300) {
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return
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}
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this.lastTouchTime = now
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this.isTouching = true
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// 立即执行一次减分
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this.decreaseScore()
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// 设置长按定时器(500ms后开始连续减分)
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this.longPressTimer = setTimeout(() => {
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this.isLongPressing = true
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// 每100ms执行一次减分
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this.longPressInterval = setInterval(() => {
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this.decreaseScore()
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}, 100)
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}, 500)
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},
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// 减分按钮 - touchend
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onDecreaseEnd(e) {
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e.preventDefault()
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e.stopPropagation()
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this.isTouching = false
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this.isLongPressing = false
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this.clearAllTimers()
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},
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// 加分按钮 - touchstart
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onIncreaseStart(e) {
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e.preventDefault()
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e.stopPropagation()
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const now = Date.now()
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// 防止快速连续触摸(300ms内的触摸被忽略)
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if (now - this.lastTouchTime < 300) {
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return
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}
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this.lastTouchTime = now
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this.isTouching = true
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// 立即执行一次加分
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this.increaseScore()
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// 设置长按定时器(500ms后开始连续加分)
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this.longPressTimer = setTimeout(() => {
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this.isLongPressing = true
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// 每100ms执行一次加分
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this.longPressInterval = setInterval(() => {
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this.increaseScore()
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}, 100)
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}, 500)
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},
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// 加分按钮 - touchend
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onIncreaseEnd(e) {
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e.preventDefault()
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e.stopPropagation()
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this.isTouching = false
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this.isLongPressing = false
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this.clearAllTimers()
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},
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// 触摸取消
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onTouchCancel(e) {
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e.preventDefault()
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e.stopPropagation()
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this.isTouching = false
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this.isLongPressing = false
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this.clearAllTimers()
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},
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async loadScoreDetail(athleteId) {
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try {
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uni.showLoading({
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@@ -166,9 +309,6 @@ export default {
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mask: true
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})
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// 🔥 关键改动:使用 dataAdapter 获取评分详情
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// Mock模式:调用 mock/score.js 的 getScoreDetail 函数
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// API模式:调用 api/score.js 的 getScoreDetail 函数(GET /api/mini/score/detail/{athleteId})
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const response = await dataAdapter.getData('getScoreDetail', {
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athleteId: athleteId
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})
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@@ -214,54 +354,29 @@ export default {
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uni.navigateBack()
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},
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// 空操作函数,用于阻止事件
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noop() {
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// 什么都不做
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},
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handleDecrease(e) {
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// 防止重复处理
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if (this.isProcessing) {
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return
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}
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this.isProcessing = true
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// 执行减分逻辑
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this.decreaseScore()
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// 使用 requestAnimationFrame 确保在下一帧重置状态
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requestAnimationFrame(() => {
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this.isProcessing = false
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})
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},
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handleIncrease(e) {
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// 防止重复处理
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if (this.isProcessing) {
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return
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}
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this.isProcessing = true
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// 执行加分逻辑
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this.increaseScore()
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// 使用 requestAnimationFrame 确保在下一帧重置状态
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requestAnimationFrame(() => {
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this.isProcessing = false
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})
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},
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decreaseScore() {
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if (this.currentScore > this.minScore) {
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this.currentScore = parseFloat((this.currentScore - 0.001).toFixed(3))
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// 添加触觉反馈(仅在支持的平台)
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// #ifndef H5
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uni.vibrateShort({
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type: 'light'
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})
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// #endif
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}
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},
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increaseScore() {
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if (this.currentScore < this.maxScore) {
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this.currentScore = parseFloat((this.currentScore + 0.001).toFixed(3))
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// 添加触觉反馈(仅在支持的平台)
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// #ifndef H5
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uni.vibrateShort({
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type: 'light'
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})
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// #endif
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}
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},
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@@ -290,9 +405,6 @@ export default {
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mask: true
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})
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// 🔥 关键改动:使用 dataAdapter 修改评分
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// Mock模式:调用 mock/score.js 的 modifyScore 函数
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// API模式:调用 api/score.js 的 modifyScore 函数(PUT /api/mini/score/modify)
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const response = await dataAdapter.getData('modifyScore', {
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athleteId: this.athleteInfo.athleteId,
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modifierId: this.modifierId,
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@@ -513,41 +625,22 @@ export default {
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}
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.control-btn {
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/* 关键:完全禁用所有触摸行为 */
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touch-action: none !important;
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-webkit-tap-highlight-color: transparent !important;
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-webkit-touch-callout: none !important;
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-webkit-user-select: none !important;
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-moz-user-select: none !important;
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-ms-user-select: none !important;
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user-select: none !important;
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/* 防止长按菜单 */
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-webkit-touch-callout: none !important;
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/* 防止文本选择 */
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pointer-events: auto !important;
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width: 140rpx;
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height: 140rpx;
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display: flex;
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flex-direction: column;
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align-items: center;
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justify-content: center;
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background-color: #F5F5F5;
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border-radius: 12rpx;
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cursor: pointer;
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position: relative;
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overflow: hidden;
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}
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.control-btn::before {
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content: '';
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position: absolute;
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top: 0;
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left: 0;
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right: 0;
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bottom: 0;
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background-color: transparent;
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z-index: 1;
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/* 关键:禁用所有可能导致缩放的触摸行为 */
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touch-action: none;
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-webkit-tap-highlight-color: transparent;
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-webkit-touch-callout: none;
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-webkit-user-select: none;
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user-select: none;
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}
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.control-btn.decrease {
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@@ -561,9 +654,7 @@ export default {
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.btn-symbol {
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font-size: 48rpx;
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font-weight: 300;
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pointer-events: none !important;
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user-select: none !important;
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-webkit-user-select: none !important;
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pointer-events: none;
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}
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.control-btn.decrease .btn-symbol {
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@@ -577,9 +668,7 @@ export default {
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.btn-value {
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font-size: 24rpx;
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margin-top: 8rpx;
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pointer-events: none !important;
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user-select: none !important;
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-webkit-user-select: none !important;
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pointer-events: none;
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}
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.control-btn.decrease .btn-value {
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@@ -608,13 +697,6 @@ export default {
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margin-top: 8rpx;
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}
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.modify-tip {
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font-size: 24rpx;
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color: #FF4D6A;
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line-height: 1.6;
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text-align: center;
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}
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/* 备注 */
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.note-section {
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margin: 30rpx;
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Reference in New Issue
Block a user