#鸿蒙通关秘籍#如何实现BackupExtensionAbility的onBackup和onRestore方法?

HarmonyOS
5天前
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雪域狼UEFI

创建一个新的文件BackupExtension.ets,实现BackupExtensionAbility: typescript import { BackupExtensionAbility, BundleVersion } from '@kit.CoreFileKit';

const TAG = BackupExtensionAbility;

export default class BackupExtension extends BackupExtensionAbility { onBackup() { console.log(TAG, onBackup ok); }

async onRestore(bundleVersion: BundleVersion): Promise<void> { console.log(TAG, onRestore ok ${JSON.stringify(bundleVersion)}); if (bundleVersion.name.startsWith("0.0.0.0")) { console.log(TAG, HarmonyOS to HarmonyOS NEXT scenario); // Implement data conversion and migration logic here } else { console.log(TAG, Other scenario); // Handle migration logic here if necessary } } }

确保在异步调用中同步等待操作完成。

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