133 lines
3.0 KiB
JavaScript
133 lines
3.0 KiB
JavaScript
/**
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* iData 扫码插件实现
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* 使用 iData-BarcodePlugin-BarcodeModule + globalEvent
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*/
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class ScanIdataImpl {
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constructor(iDataModule) {
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this.barcodeModule = iDataModule
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this.globalEvent = null
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this._callback = null
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this._isScanning = false
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this._isInitialized = false
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this._lastScanTime = 0
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this._debounceTime = 500 // 防抖间隔 ms
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}
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/**
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* 初始化扫码模块
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*/
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init() {
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if (!this.barcodeModule) {
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throw new Error('[Scan-iData] 扫码模块不可用')
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}
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this.globalEvent = uni.requireNativePlugin('globalEvent')
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var self = this
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this.barcodeModule.initScan(function (res) {
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console.log('[Scan-iData] 初始化结果:', res)
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self._isInitialized = true
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self.barcodeModule.setScanKeyEnable(true, function () {})
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self._setupListener()
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})
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}
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/**
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* 设置扫码结果监听
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*/
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_setupListener() {
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var self = this
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this.globalEvent.addEventListener('iDataBarcodeEvent', function (res) {
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console.log('[Scan-iData] 扫码事件:', res)
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if (res && res.barcode) {
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// 防抖处理
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var now = Date.now()
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if (now - self._lastScanTime < self._debounceTime) {
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console.log('[Scan-iData] 防抖过滤')
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return
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}
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self._lastScanTime = now
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self._isScanning = false
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if (self._callback) {
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self._callback(res.barcode)
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}
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}
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})
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}
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/**
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* 注册扫码结果回调
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* @param {Function} callback - (codeStr: string) => void
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*/
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register(callback) {
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this._callback = callback
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}
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/**
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* 注销监听（页面卸载时调用）
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* 注意：iData 模式下不注销 globalEvent，只清除回调
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*/
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unregister() {
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this._callback = null
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}
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/**
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* 开始扫描
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*/
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startScan() {
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if (!this._isInitialized || !this.barcodeModule) return
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var self = this
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this.barcodeModule.setScanKeyEnable(true, function () {
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self.barcodeModule.scanStart(function () {
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self._isScanning = true
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console.log('[Scan-iData] 扫码已启动')
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})
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})
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}
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/**
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* 停止扫描
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*/
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stopScan() {
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if (!this.barcodeModule) return
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var self = this
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this.barcodeModule.setScanKeyEnable(false, function () {})
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this.barcodeModule.scanStop(function () {
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self._isScanning = false
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console.log('[Scan-iData] 扫码已停止')
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})
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}
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/**
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* 是否正在扫描
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*/
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isScanning() {
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return this._isScanning
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}
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/**
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* 完全销毁（应用退出时调用）
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*/
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destroy() {
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this.unregister()
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if (this.barcodeModule) {
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this.barcodeModule.setScanKeyEnable(false, function () {})
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this.barcodeModule.scanStop(function () {})
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this.barcodeModule.closeScan(function () {})
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this.barcodeModule = null
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}
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if (this.globalEvent) {
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this.globalEvent.removeEventListener('iDataBarcodeEvent')
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this.globalEvent = null
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}
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this._isInitialized = false
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}
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}
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export default ScanIdataImpl
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