291 lines
7.7 KiB
Vue
291 lines
7.7 KiB
Vue
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<!--重量体积计算-->
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<template>
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<view class="boxBg">
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<view class="goodsCon">
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<view class="item">
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<text>预估重量</text>
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<view class="bg goodInfo">
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<view
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class="symbol"
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:class="isLessThan ? 'active' : ''"
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@click="handleMinus"
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>-</view
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>
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<view class="num">
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<input
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class="uni-input"
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type="number"
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maxlength="6"
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v-model="weight"
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@blur="handleSymbol"
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/>
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<text>kg</text>
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</view>
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<view
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class="symbol"
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:class="isExceed ? 'active' : ''"
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@click="handleAdd"
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>+</view
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>
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</view>
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</view>
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<view class="item">
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<text>总体积</text>
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<view class="bg goodInfo">
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<!-- 暂时去除 :class="isLessThanVolume ? 'active' : ''" -->
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<view class="symbol" @click="handleVolumeMinus">-</view>
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<view class="num">
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<input
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class="uni-input"
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type="number"
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maxlength="6"
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v-model="volume"
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@blur="handleVolume"
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/>
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<text>m³</text>
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</view>
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<!-- 暂时去除 :class="isExceedVolume ? 'active' : ''" -->
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<view class="symbol" @click="handleVolumeAdd">+</view>
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</view>
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</view>
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<view class="item calculate">
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<view class="bg">
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<input
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class="uni-input"
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type="number"
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maxlength="3"
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v-model="measureLong"
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placeholder="长"
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@input="handleCalculate"
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/>
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<text :class="measureLong ? 'active' : ''">cm</text>
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</view>
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<text>*</text>
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<view class="bg">
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<input
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class="uni-input"
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type="number"
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maxlength="3"
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v-model="measureWidth"
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placeholder="宽"
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@input="handleCalculate"
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/>
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<text :class="measureWidth ? 'active' : ''">cm</text>
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</view>
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<text>*</text>
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<view class="bg">
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<input
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class="uni-input"
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type="number"
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maxlength="3"
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v-model="measureHigh"
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placeholder="高"
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@input="handleCalculate"
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/>
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<text :class="measureHigh ? 'active' : ''">cm</text>
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</view>
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</view>
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</view>
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</view>
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</template>
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<script setup>
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import { ref, watch, nextTick } from "vue";
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// ------定义变量------
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let weight = ref(1); //重量
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let volume = ref(0); //体积
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let measureLong = ref(null); //长
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let measureWidth = ref(null); //宽
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let measureHigh = ref(null); //高
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let isLessThan = ref(true); //判断重量是否小于0.1
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let isExceed = ref(false); //判断重量是否大于9999
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let isLessThanVolume = ref(true); //判断体积是否小于0.0001m³
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let isExceedVolume = ref(false); //判断体积是否大于99m³
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// 暴漏给父组件
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defineExpose({
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weight,
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volume,
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measureLong,
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measureWidth,
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measureHigh,
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});
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// ------生命周期------
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// 监听重量数值，小数点后保留一位
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watch(weight, (newValue, oldValue) => {
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const val = Number(newValue);
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nextTick(() => {
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// 数值小于0.1并且大于0 数值默认为1
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if (val < 0.1 && val > 0) {
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weight.value = 1;
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}
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// 处理小数点，小数点保留1位
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if (val > 0.1) {
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weight.value = parseInt(val * 10) / 10;
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}
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// 数值小于等于1 左侧按钮置灰
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if (val <= 1) {
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isLessThan.value = true; //左侧减号置灰
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} else {
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isLessThan.value = false; //左侧减号去除置灰
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if (val >= 9999) {
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weight.value = 9999;
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isExceed.value = true; //右侧加号置灰
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} else {
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isExceed.value = false; //右侧加号去除置灰
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}
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}
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});
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});
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// 监听长，取整
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watch(measureLong, (newValue, oldValue) => {
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const val = Number(newValue);
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nextTick(() => {
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measureLong.value = Math.floor(val);
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if (newValue <= 0) {
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measureLong.value = null;
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}
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});
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});
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// 监听宽，取整
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watch(measureWidth, (newValue, oldValue) => {
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const val = Number(newValue);
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nextTick(() => {
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measureWidth.value = Math.floor(val);
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if (newValue <= 0) {
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measureWidth.value = null;
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}
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});
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});
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// 监听高，取整
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watch(measureHigh, (newValue, oldValue) => {
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const val = Number(newValue);
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nextTick(() => {
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measureHigh.value = Math.floor(val);
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if (newValue <= 0) {
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measureHigh.value = null;
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}
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});
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});
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// ------定义方法------
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//触发重量输入如果输入0，自动判断为1kg,最小可输入值为0.1kg,最大值为9999kg
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const handleSymbol = (e) => {
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const value = e.detail.value;
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if (value < 0.1) {
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weight.value = 1;
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isLessThan.value = true; //左侧减号置灰
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} else {
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if (value > 0.1 && value <= 1) {
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isLessThan.value = true;
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} else {
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isLessThan.value = false; //左侧减号去除置灰
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}
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if (value >= 9999) {
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isExceed.value = true; //右侧加号置灰
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weight.value = 9999;
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} else {
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isExceed.value = false; //右侧加号去除置灰
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}
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}
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};
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// 减重量
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const handleMinus = () => {
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// 重量减去1
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if (weight.value > 1) {
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weight.value--;
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isExceed.value = false; //右侧加号去除置灰
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weight.value = weight.value.toFixed(1);
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}
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if (weight.value <= 0) {
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weight.value = 1;
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isLessThan.value = true; //左侧减号置灰
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}
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};
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// 加重量
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const handleAdd = () => {
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// 重量加1
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if (weight.value < 9999) {
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++weight.value;
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isLessThan.value = false; //左侧减号去除置灰
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}
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if (weight.value === 9999) {
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isExceed.value = true; //右侧加号置灰
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}
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};
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// 体积
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const handleVolume = (e) => {
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const value = Number(e.detail.value);
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if (value < 0.0001) {
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volume.value = 0;
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} else {
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if (value > 99) {
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volume.value = 99;
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return uni.showToast({
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title: "体积最大可不能超过99m³",
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duration: 1000,
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icon: "none",
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});
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}
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}
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};
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// 减体积
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const handleVolumeMinus = () => {
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// 体积减去1
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if (volume.value > 1) {
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volume.value--;
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volume.value = parseInt(volume.value * 10000) / 10000;
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}
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// 体积
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if (volume.value <= 0 || volume.value === 1) {
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volume.value = 0;
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}
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};
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// 加体积
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const handleVolumeAdd = () => {
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// 体积加1
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if (volume.value < 99) {
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++volume.value;
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isLessThanVolume.value = false; //左侧减号去除置灰
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}
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if (volume.value === 99) {
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isExceedVolume.value = true; //右侧加号置灰
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}
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};
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// 计算立方米
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const handleCalculate = () => {
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const long = measureLong.value; //长
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const wide = measureWidth.value; //宽
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const height = measureHigh.value; //高
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// 长宽高都大于1才可以计算
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if (long >= 1 && wide >= 1 && height >= 1) {
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nextTick(() => {
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// 计算立方米：长/100*宽/100*高/100
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let val = (long / 100) * (wide / 100) * (height / 100);
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// 立方米必须大于0.0001
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if (val < 0.0001) {
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volume.value = 0;
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} else if (val > 99) {
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// 小数点后保留四位小数
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isExceedVolume.value = true; //右侧加号置灰
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volume.value = 99;
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return uni.showToast({
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title: "体积最大可不能超过99m³",
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duration: 1000,
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icon: "none",
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});
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} else {
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volume.value = parseInt(val * 10000) / 10000;
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// 如果体积大于1左侧减号按钮去除置灰
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if (val > 1) {
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isLessThanVolume.value = false; //左侧减号去除置灰
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} else {
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isLessThanVolume.value = true; //左侧减号置灰
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}
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isExceedVolume.value = false; //右侧加号去除置灰
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}
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});
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}
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};
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</script>
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