HarmonyOS 鸿蒙Next实现扫码功能、扫一扫二维码实现示例

import { scanBarcode, scanCore } from ‘@kit.ScanKit’;
import { hilog } from ‘@kit.PerformanceAnalysisKit’;
import { BusinessError } from ‘@kit.BasicServicesKit’;

@Entry
@Component
struct Page40 {
@State content: string = ‘’
@State flag: boolean = false
build() {
Column() {
Button(‘扫码’).onClick(() => {
// 定义扫码参数options
let options: scanBarcode.ScanOptions = {
scanTypes: [scanCore.ScanType.ALL],
enableMultiMode: true,
enableAlbum: true
};
try {
scanBarcode.startScanForResult(getContext(this), options).then((result: scanBarcode.ScanResult) => {
// 收到正确的扫码返回
hilog.info(0x0001, ‘[Scan CPSample]’, ‘Promise scan result: %{public}s’, JSON.stringify(result));
this.flag = true
if (result.scanType == scanCore.ScanType.QR_CODE) {
this.content = result.originalValue
} else {
this.content = ‘业务异常:’ + result.scanType
//错误码文档：https://developer.huawei.com/consumer/cn/doc/harmonyos-references-V5/scan-scancore-0000001633801693-V5#section113371139123212
}
}).catch((error: BusinessError) => {
hilog.error(0x0001, ‘[Scan CPSample]’, ‘Promise error: %{public}s’, JSON.stringify(error));
this.flag = false
this.content = JSON.stringify(error)
});
} catch (error) {
hilog.error(0x0001, ‘[Scan CPSample]’, ‘failReason: %{public}s’, JSON.stringify(error));
}
})
Text(this.content ? ((this.flag ? ‘扫码成功’ : ‘扫码失败’) + ‘:’ + this.content) : ‘’)
}
}
}