harmony 鸿蒙@ohos.fileshare (File Sharing)
@ohos.fileshare (File Sharing)
The fileShare module provides APIs for granting the access permissions on a user file to another application by the Uniform Resource Identifier (URI). Then, the authorized application can access the file by using the APIs provided by @ohos.file.fs.
NOTE
The initial APIs of this module are supported since API version 9. Newly added APIs will be marked with a superscript to indicate their earliest API version.
Modules to Import
import fileShare from '@ohos.fileshare';
fileShare.grantUriPermission
grantUriPermission(uri: string, bundleName: string, flag: wantConstant.Flags, callback: AsyncCallback<void>): void
Grants permissions on a user file by the URI to an application. This API uses an asynchronous callback to return the result.
Required permissions: ohos.permission.WRITE_MEDIA
System API: This is a system API.
System capability: SystemCapability.FileManagement.AppFileService
Parameters
Name | Type | Mandatory | Description |
---|---|---|---|
uri | string | Yes | URI of a user file. |
bundleName | string | Yes | Bundle name of the application to be grated with the permissions. |
flag | wantConstant.Flags | Yes | Permissions to grant. For details, see wantConstant.Flags. wantConstant.Flags.FLAG_AUTH_READ_URI_PERMISSION: permission to read the file. wantConstant.Flags.FLAG_AUTH_WRITE_URI_PERMISSION: permission to write the file. |
callback | AsyncCallback<void> | Yes | Callback invoked to return the result. |
Error codes
For details about the error codes, see File Management Error Codes.
ID | Error Message |
---|---|
201 | Permission verification failed |
202 | The caller is not a system application |
401 | The input parameter is invalid |
143000001 | IPC error |
Example
import wantConstant from '@ohos.app.ability.wantConstant';
import { BusinessError } from '@ohos.base';
let uri: string = 'file://media/image/8';
let bundleName: string = 'com.demo.test';
try {
fileShare.grantUriPermission(uri, bundleName, wantConstant.Flags.FLAG_AUTH_READ_URI_PERMISSION|
wantConstant.Flags.FLAG_AUTH_WRITE_URI_PERMISSION, (err: BusinessError) => {
if (err) {
console.error("grantUriPermission failed with error: " + JSON.stringify(err));
return;
}
console.info("grantUriPermission success!");
});
} catch (err) {
let error: BusinessError = err as BusinessError;
console.error("grantUriPermission failed with error:" + JSON.stringify(error));
}
fileShare.grantUriPermission
grantUriPermission(uri: string, bundleName: string, flag: wantConstant.Flags): Promise<void>
Grants permissions on a user file by the URI to an application. This API uses a promise to return the result.
Required permissions: ohos.permission.WRITE_MEDIA
System API: This is a system API.
System capability: SystemCapability.FileManagement.AppFileService
Parameters
Name | Type | Mandatory | Description |
---|---|---|---|
uri | string | Yes | URI of a user file. |
bundleName | string | Yes | Bundle name of the application to be grated with the permissions. |
flag | wantConstant.Flags | Yes | Permissions to grant. For details, see wantConstant.Flags. wantConstant.Flags.FLAG_AUTH_READ_URI_PERMISSION: permission to read the file. wantConstant.Flags.FLAG_AUTH_WRITE_URI_PERMISSION: permission to write the file. |
Return value
Type | Description |
---|---|
Promise<void> | Promise that returns no value. |
Error codes
For details about the error codes, see File Management Error Codes.
ID | Error Message |
---|---|
201 | Permission verification failed |
202 | The caller is not a system application |
401 | The input parameter is invalid |
143000001 | IPC error |
Example
import wantConstant from '@ohos.app.ability.wantConstant';
import { BusinessError } from '@ohos.base';
let uri: string = 'file://media/image/8';
let bundleName: string = 'com.demo.test';
try {
fileShare.grantUriPermission(uri, bundleName, wantConstant.Flags.FLAG_AUTH_READ_URI_PERMISSION|
wantConstant.Flags.FLAG_AUTH_WRITE_URI_PERMISSION).then(() => {
console.info("grantUriPermission success!");
}).catch((error: BusinessError) => {
console.error("grantUriPermission failed with error:" + JSON.stringify(error));
});
} catch (err) {
let error: BusinessError = err as BusinessError;
console.error("grantUriPermission failed with error:" + JSON.stringify(error));
}
你可能感兴趣的鸿蒙文章
harmony 鸿蒙System Common Events (To Be Deprecated Soon)
harmony 鸿蒙System Common Events
harmony 鸿蒙API Reference Document Description
harmony 鸿蒙Enterprise Device Management Overview (for System Applications Only)
harmony 鸿蒙BundleStatusCallback
harmony 鸿蒙@ohos.bundle.innerBundleManager (innerBundleManager)
harmony 鸿蒙@ohos.distributedBundle (Distributed Bundle Management)
harmony 鸿蒙@ohos.bundle (Bundle)
harmony 鸿蒙@ohos.enterprise.EnterpriseAdminExtensionAbility (EnterpriseAdminExtensionAbility)
- 所属分类: 后端技术
- 本文标签:
热门推荐
-
2、 - 优质文章
-
3、 gate.io
-
8、 golang
-
9、 openharmony
-
10、 Vue中input框自动聚焦