harmony 鸿蒙@system.device (Device Information)
@system.device (Device Information)
The device module provides APIs for checking information about the current device.
NOTE
The APIs of this module are no longer maintained since API version 6. It is recommended that you use @ohos.deviceInfo instead.
The initial APIs of this module are supported since API version 3. Newly added APIs will be marked with a superscript to indicate their earliest API version.
Modules to Import
import device from '@system.device';
device.getInfo
getInfo(options?: GetDeviceOptions): void
Obtains the device information.
NOTE
Do not call device.getInfo before the onShow event of the home page.
System capability: SystemCapability.Startup.SystemInfo.Lite
Parameters
Name | Type | Mandatory | Description |
---|---|---|---|
options | GetDeviceOptions | No | Parameters for obtaining the device information. |
GetDeviceOptions
Defines the parameters for obtaining the device information.
System capability: SystemCapability.Startup.SystemInfo.Lite
Name | Type | Mandatory | Description |
---|---|---|---|
success | (data: DeviceResponse)=> void | No | Called when API call is successful. data indicates the returned device information. For details, see DeviceResponse. |
fail | (data: any,code:number)=> void | No | Called when API call has failed. code indicates the error code returned upon a failure. code:200: Certain information could not be obtained. |
complete | () => void | No | Called when API call is complete. |
DeviceResponse
Provides the device information.
System capability: SystemCapability.Startup.SystemInfo.Lite
Name | Type | Description |
---|---|---|
brand | string | Brand. |
manufacturer | string | Manufacturer. |
model | string | Model. |
product | string | Product number. |
language4+ | string | System language. |
region4+ | string | System region. |
windowWidth | number | Window width. |
windowHeight | number | Window height. |
screenDensity4+ | number | Screen density. |
screenShape4+ | string | Screen shape. The options are as follows: - rect: rectangular screen - circle: round screen |
apiVersion4+ | number | API version. |
deviceType4+ | string | Device type. |
Example
export default {
getInfo() {
device.getInfo({
success: function(data) {
console.log('Device information obtained successfully. Device brand:' + data.brand);
},
fail: function(data, code) {
console.log('Failed to obtain device information. Error code:'+ code + '; Error information: ' + data);
},
});
},
}
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