harmony 鸿蒙@ohos.enterprise.dateTimeManager (System Time Management)
@ohos.enterprise.dateTimeManager (System Time Management)
The dateTimeManager module provides APIs for system time management.
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.
The APIs of this module can be used only in the stage model.
The APIs provided by this module can be called only by a device administrator application that is enabled.
Modules to Import
import dateTimeManager from '@ohos.enterprise.dateTimeManager';
dateTimeManager.setDateTime
setDateTime(admin: Want, time: number, callback: AsyncCallback<void>): void
Sets the system time through the specified device administrator application. This API uses an asynchronous callback to return the result.
Required permissions: ohos.permission.ENTERPRISE_SET_DATETIME
System capability: SystemCapability.Customization.EnterpriseDeviceManager
System API: This is a system API.
Parameters
Name | Type | Mandatory | Description |
---|---|---|---|
admin | Want | Yes | Device administrator application. |
time | number | Yes | Timestamp to set, in ms. |
callback | AsyncCallback<void> | Yes | Callback invoked to return the result. If the operation is successful, err is null. Otherwise, err is an error object. |
Error codes
For details about the error codes, see Enterprise Device Management Error Codes.
ID | Error Message |
---|---|
9200001 | the application is not an administrator of the device. |
9200002 | the administrator application does not have permission to manage the device. |
Example
import Want from '@ohos.app.ability.Want';
let wantTemp: Want = {
bundleName: 'bundleName',
abilityName: 'abilityName',
};
dateTimeManager.setDateTime(wantTemp, 1526003846000, (err) => {
if (err) {
console.error(`Failed to set date time. Code is ${err.code}, message is ${err.message}`);
return;
}
console.info('Succeeded in setting date time');
})
dateTimeManager.setDateTime
setDateTime(admin: Want, time: number): Promise<void>
Sets the system time through the specified device administrator application. This API uses a promise to return the result.
Required permissions: ohos.permission.ENTERPRISE_SET_DATETIME
System capability: SystemCapability.Customization.EnterpriseDeviceManager
System API: This is a system API.
Parameters
Name | Type | Mandatory | Description |
---|---|---|---|
admin | Want | Yes | Device administrator application. |
time | number | Yes | Timestamp to set, in ms. |
Return value
Type | Description |
---|---|
Promise<void> | Promise that returns no value. |
Error codes
For details about the error codes, see Enterprise Device Management Error Codes.
ID | Error Message |
---|---|
9200001 | the application is not an administrator of the device. |
9200002 | the administrator application does not have permission to manage the device. |
Example
import Want from '@ohos.app.ability.Want';
import { BusinessError } from '@ohos.base';
let wantTemp: Want = {
bundleName: 'bundleName',
abilityName: 'abilityName',
};
dateTimeManager.setDateTime(wantTemp, 1526003846000).then(() => {
console.info('Succeeded in setting date time');
}).catch((err: BusinessError) => {
console.error(`Failed to set date time. Code is ${err.code}, message is ${err.message}`);
})
dateTimeManager.disallowModifyDateTime10+
disallowModifyDateTime(admin: Want, disallow: boolean, callback: AsyncCallback<void>): void
Forbids the specified device administrator application to modify the system time. This API uses an asynchronous callback to return the result.
Required permissions: ohos.permission.ENTERPRISE_SET_DATETIME
System capability: SystemCapability.Customization.EnterpriseDeviceManager
System API: This is a system API.
Parameters
Name | Type | Mandatory | Description |
---|---|---|---|
admin | Want | Yes | Device administrator application. |
disallow | boolean | Yes | Whether to disallow modification of the system time. The value true means to disallow modification of the system time, and false means the opposite. |
callback | AsyncCallback<void> | Yes | Callback invoked to return the result. If the operation is successful, err is null. Otherwise, err is an error object. |
Error codes
For details about the error codes, see Enterprise Device Management Error Codes.
ID | Error Message |
---|---|
9200001 | the application is not an administrator of the device. |
9200002 | the administrator application does not have permission to manage the device. |
Example
import Want from '@ohos.app.ability.Want';
let wantTemp: Want = {
bundleName: 'bundleName',
abilityName: 'abilityName',
};
dateTimeManager.disallowModifyDateTime(wantTemp, true, (err) => {
if (err) {
console.error(`Failed to disallow modify date time. Code is ${err.code}, message is ${err.message}`);
return;
}
console.info('Succeeded in disallowing modify date time');
})
dateTimeManager.disallowModifyDateTime10+
disallowModifyDateTime(admin: Want, disallow: boolean): Promise<void>
Forbids the specified device administrator application to modify the system time. This API uses a promise to return the result.
Required permissions: ohos.permission.ENTERPRISE_SET_DATETIME
System capability: SystemCapability.Customization.EnterpriseDeviceManager
System API: This is a system API.
Parameters
Name | Type | Mandatory | Description |
---|---|---|---|
admin | Want | Yes | Device administrator application. |
disallow | boolean | Yes | Whether to disallow modification of the system time. The value true means to disallow modification of the system time, and false means the opposite. |
Return value
Type | Description |
---|---|
Promise<void> | Promise that returns no value. If the operation fails, an error object will be thrown. |
Error codes
For details about the error codes, see Enterprise Device Management Error Codes.
ID | Error Message |
---|---|
9200001 | the application is not an administrator of the device. |
9200002 | the administrator application does not have permission to manage the device. |
Example
import Want from '@ohos.app.ability.Want';
import { BusinessError } from '@ohos.base';
let wantTemp: Want = {
bundleName: 'bundleName',
abilityName: 'abilityName',
};
dateTimeManager.disallowModifyDateTime(wantTemp, true).then(() => {
console.info('Succeeded in disallowing modify date time');
}).catch((err: BusinessError) => {
console.error(`Failed to disallow modify date time. Code is ${err.code}, message is ${err.message}`);
})
dateTimeManager.isModifyDateTimeDisallowed10+
isModifyDateTimeDisallowed(admin: Want, callback: AsyncCallback<boolean>): void
Checks whether the system time modification is disallowed through the specified device administrator application. This API uses an asynchronous callback to return the result.
Required permissions: ohos.permission.ENTERPRISE_SET_DATETIME
System capability: SystemCapability.Customization.EnterpriseDeviceManager
System API: This is a system API.
Parameters
Name | Type | Mandatory | Description |
---|---|---|---|
admin | Want | Yes | Device administrator application. |
callback | AsyncCallback<boolean> | Yes | Callback invoked to return the result. The value true means the system time modification is disallowed, and false means the opposite. |
Error codes
For details about the error codes, see Enterprise Device Management Error Codes.
ID | Error Message |
---|---|
9200001 | the application is not an administrator of the device. |
9200002 | the administrator application does not have permission to manage the device. |
Example
import Want from '@ohos.app.ability.Want';
let wantTemp: Want = {
bundleName: 'bundleName',
abilityName: 'abilityName',
};
dateTimeManager.isModifyDateTimeDisallowed(wantTemp, (err, result) => {
if (err) {
console.error(`Failed to query modify date time is disallowed or not. Code is ${err.code}, message is ${err.message}`);
return;
}
console.info(`Succeeded in querying modify date time is disallowed : ${result}`);
})
dateTimeManager.isModifyDateTimeDisallowed10+
isModifyDateTimeDisallowed(admin: Want): Promise<boolean>
Checks whether the system time modification is disallowed through the specified device administrator application. This API uses a promise to return the result.
Required permissions: ohos.permission.ENTERPRISE_SET_DATETIME
System capability: SystemCapability.Customization.EnterpriseDeviceManager
System API: This is a system API.
Parameters
Name | Type | Mandatory | Description |
---|---|---|---|
admin | Want | Yes | Device administrator application. |
Return value
Type | Description |
---|---|
Promise<boolean> | Promise used to return the result. The value true means the system time modification is disallowed, and false means the opposite. |
Error codes
For details about the error codes, see Enterprise Device Management Error Codes.
ID | Error Message |
---|---|
9200001 | the application is not an administrator of the device. |
9200002 | the administrator application does not have permission to manage the device. |
Example
import Want from '@ohos.app.ability.Want';
import { BusinessError } from '@ohos.base';
let wantTemp: Want = {
bundleName: 'bundleName',
abilityName: 'abilityName',
};
dateTimeManager.isModifyDateTimeDisallowed(wantTemp).then((result) => {
console.info(`Succeeded in querying modify date time is disallowed : ${result}`);
}).catch((err: BusinessError) => {
console.error(`Failed to query modify date time is disallowed or not. Code is ${err.code}, message is ${err.message}`);
})
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