#鸿蒙通关秘籍#如何通过FilePicker设置文件永久授权？

为了在使用FilePicker选择文件后设置永久授权，可以通过以下步骤实现：

• 使用FilePicker选择文件
• 进行权限持久化设置

以下代码实现了这些步骤：

javascript import { picker } from '@kit.CoreFileKit'; import { fileShare } from '@kit.CoreFileKit';

async function setPermanentFileAccess() { try { // 选择文件夹路径 let DocumentSelectOptions = new picker.DocumentSelectOptions(); DocumentSelectOptions.selectMode = picker.DocumentSelectMode.FOLDER; let documentPicker = new picker.DocumentViewPicker(); let uris = await documentPicker.select(DocumentSelectOptions);

// 设置持久化权限
let policyInfo = {
  uri: uris[0],
  operationMode: fileShare.OperationMode.READ_MODE
};
let policies = [policyInfo];

fileShare.persistPermission(policies).then(() => {
  console.info("Permission persisted successfully");
});

} catch (error) { console.error('Failed to persist file permissions: ', JSON.stringify(error)); } }