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小程序按住说话

news 2025/7/18 10:11:41

小程序按住说话、上滑取消的实现。
使用view作为容器总有奇怪的问题，比如touchend事件有时候不触发。
需要使用事件修饰符来阻止冒泡，不如有时候touchend、touchmove也不会触发。
下面是效果及源码。
在这里插入图片描述

<template><view class="w-full bg-white"><buttonclass="record-btn w-full"style="padding: 0; line-height: 22px; background-color: transparent"@touchend.stop="handleTouchEnd"@touchmove.stop="handleTouchmove"@longpress.stop="handleLongPress"><view v-if="isRecording"><view class="text-center text-secondary text-xs py-3"><text v-if="isUp">松开取消</text><text v-else>松手发送，上滑取消</text></view><Wave :bgColor="`var(--wot-color-${isUp ? 'danger' : 'theme'})`" /></view><view v-else class="leading-22px py-3"><view><text class="font-bold">按住说话</text></view></view></button></view>
</template><script lang="ts" setup>
import Wave from './Wave.vue'const isRecording = ref(false) // 状态，当前是否在录音
const isUp = ref(false) // 是否上滑
const startY = ref(0)
const handleLongPress = (event) => {startY.value = event.touches[0].clientYisRecording.value = trueconsole.log(`output->按压的坐标`, startY.value)
}
const handleTouchEnd = () => {isRecording.value = falsestartY.value = 0isUp.value = falseconsole.log(`output->离开后的坐标`, startY.value)
}
const handleTouchmove = (event) => {if (!isRecording.value) returnconst currentY = event.touches[0].clientYconst diffY = startY.value - currentY// 设定阈值，防止误判isUp.value = diffY > 10
}
</script>

wave.vue

<template><viewclass="wave-container":style="{'background-color': bgColor,}"><view :class="`wave-bar wave-bar-delay-${n}`" v-for="n in generateSequence(20)" :key="n"></view></view>
</template>
<script lang="ts" setup>
type PropsType = { bgColor: string }const props = defineProps<PropsType>()function generateSequence(n) {const result = []// 递增部分：1 到 nfor (let i = 1; i <= n; i++) {result.push(i)}// 递减部分：n-1 到 1for (let i = n - 1; i >= 1; i--) {result.push(i)}return result
}
</script><style lang="scss" scoped>
$number: 20;.wave-container {display: flex;gap: 5px;align-items: center;justify-content: center;width: 100%;height: 22px;padding: 12px 0;border-radius: 10px;
}
.wave-bar {width: 3px;height: 10px;background-color: #fff;border-radius: 2px;animation: wave 1s infinite ease-in-out;
}@for $i from 1 through $number {.wave-bar-delay-#{$i} {animation-delay: $i * -0.8 + s;}
}@keyframes wave {0%,100% {transform: scaleY(0.8);}50% {transform: scaleY(1);}
}
</style>