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uniapp封装picker选择器组件，支持关键字查询

news 来源：原创 2024/7/5 3:38:04

CommonPicker.vue组件

路径在 components\CommonPicker.vue

<template><view><uni-easyinput v-model="searchQuery" :placeholder="placeholder" /><picker :range="filteredOptions" :range-key="'text'" v-model="selectedIndex" @change="onPickerChange"><view class="picker">{{ `当前选择： ${selectedText}` }}</view></picker></view>
</template><script>
export default {props: {value: { // v-model 的值 type: [String, Number],default: ''},options: { // 数据来源 格式为 [{value: '1', text: '选项1'}, {value: '2', text: '选项2'}]type: Array,required: true},placeholder: {type: String,default: '筛选'}},data() {return {selectedIndex: 0,selectedText: '',searchQuery: ''};},computed: {filteredOptions() {if (!this.searchQuery) {return this.options;}return this.options.filter(option => option.text.includes(this.searchQuery));}},watch: {value(val) {const index = this.filteredOptions.findIndex(option => option.value === val);if (index !== -1) {this.selectedIndex = index;this.selectedText = this.filteredOptions[index].text;}},options: {immediate: true,handler() {const index = this.filteredOptions.findIndex(option => option.value === this.value);if (index !== -1) {this.selectedIndex = index;this.selectedText = this.filteredOptions[index].text;}}},searchQuery() {this.updateSelectedText();}},methods: {onPickerChange(e) {const index = e.detail.value;const selectedOption = this.filteredOptions[index];this.selectedIndex = index;this.selectedText = selectedOption.text;this.$emit('input', selectedOption.value); // 触发 v-model 绑定的更新},updateSelectedText() {const index = this.filteredOptions.findIndex(option => option.value === this.value);if (index !== -1) {this.selectedIndex = index;this.selectedText = this.filteredOptions[index].text;} else {this.selectedText = '';this.selectedIndex = 0;}}},mounted() {this.updateSelectedText();}
};
</script><style lang="scss" scoped>
.picker {padding: 10px;background-color: #f0f0f0;border-radius: 5px;text-align: left;margin-top: 10px;
}
</style>

在main.js中全局注册

import CommonPicker from '@/components/CommonPicker.vue';
Vue.component('CommonPicker', CommonPicker)

使用

<template><uni-card><CommonPicker v-model="id" :options="options" :placeholder="`筛选`" /></uni-card>
</template><script>
export default {data() {return {options: [{text: '小明',value: "1"}, {text: '小红',value: "2"}, {text: '小王',value: "3"}],id: undefined,}}
}
</script>