The **batteryInfo** module provides APIs for querying the charger type, battery health status, and battery charging status.
> **NOTE**<br>
> The initial APIs of this module are supported since API version 6. Newly added APIs will be marked with a superscript to indicate their earliest API version.
> - The APIs of this module are no longer maintained since API version 8. It is recommended that you use the APIs of [hiTraceMeter](js-apis-hitracemeter.md) instead.
The call module provides call management functions, including making calls, redirecting to the dial screen, obtaining the call status, and formatting phone numbers.
The **call** module provides call management functions, including making calls, redirecting to the dial screen, obtaining the call status, and formatting phone numbers.
To subscribe to the call status, use [`observer.on('callStateChange')`](js-apis-observer.md#observeroncallstatechange).
The Geolocation module provides location services such as GNSS positioning, network positioning, geocoding, reverse geocoding, country code and geofencing.
The **geolocation** module provides location services such as GNSS positioning, network positioning, geocoding, reverse geocoding, country code and geofencing.
> **NOTE**
> The initial APIs of this module are supported since API version 7. Newly added APIs will be marked with a superscript to indicate their earliest API version.
> The APIs provided by this module are no longer maintained since API version 9. You are advised to use [geoLocationManager](js-apis-geoLocationManager.md) instead.
>
> - The initial APIs of this module are supported since API version 7. Newly added APIs will be marked with a superscript to indicate their earliest API version.
> - The APIs provided by this module are no longer maintained since API version 9. You are advised to use [geoLocationManager](js-apis-geoLocationManager.md) instead.
The HiAppEvent module provides the application event logging functions, such as writing application events to the event file and managing the event logging configuration.
The **hichecker** module is provided for you to check issues that may be easily ignored during development of OpenHarmony applications (including system-built and third-party applications). Such issues include calling of time-consuming functions by key application threads, event distribution and execution timeout in application processes, and ability resource leakage in application processes. The issues are recorded in logs or lead to process crashes explicitly so that you can find and rectify them.
The **hidebug** module provides APIs for you to obtain the memory usage of an application, including the static heap memory (native heap) and proportional set size (PSS) occupied by the application process. You can also export VM memory slices and collect VM CPU profiling data.
The **hilog** module allows your applications or services to output logs based on the specified type, level, and format string. Such logs help you learn the running status of applications and better debug programs.
The **hiTraceChain** module implements call chain tracing throughout a service process. It provides functions such as starting and stopping call chain tracing and configuring trace points.
The **hiAppEvent** module provides application event-related functions, including flushing application events to a disk, querying and clearing application events, and customizing application event logging configuration.
The I18N module provides system-related or enhanced I18N capabilities, such as locale management, phone number formatting, and calendar, through supplementary I18N APIs that are not defined in ECMA 402.
The [Intl](js-apis-intl.md) module provides basic I18N capabilities through the standard I18N APIs defined in ECMA 402. It works with the I18N module to provide a complete suite of I18N capabilities.
The **i18n** module provides system-related or enhanced I18N capabilities, such as locale management, phone number formatting, and calendar, through supplementary I18N APIs that are not defined in ECMA 402.
The [intl](js-apis-intl.md) module provides basic I18N capabilities through the standard I18N APIs defined in ECMA 402. It works with the I18N module to provide a complete suite of I18N capabilities.
> **NOTE**
> The initial APIs of this module are supported since API version 7. Newly added APIs will be marked with a superscript to indicate their earliest API version.
> **NOTE**
> The initial APIs of this module are supported since API version 7. Newly added APIs will be marked with a superscript to indicate their earliest API version.
## Modules to Import
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@@ -1054,7 +1054,7 @@ Creates a **PhoneNumberFormat** object.
The **inputDevice** module implements listening for connection, disconnection, and update events of input devices and displays information about input devices. For example, it can be used to listen for mouse insertion and removal and obtain information such as the ID, name, and pointer speed of the mouse.
> **NOTE**<br>
> The initial APIs of this module are supported since API version 8. Newly added APIs will be marked with a superscript to indicate their earliest API version.
The Input Monitor module implements listening for events of input devices (namely, touchscreen and mouse).
The **inputMonitor** module implements listening for events of input devices (namely, touchscreen and mouse).
> **NOTE**
>
> - The initial APIs of this module are supported since API version 7. Newly added APIs will be marked with a superscript to indicate their earliest API version.
>
> - The APIs provided by this module are system APIs.
The Intl module provides basic I18N capabilities, such as time and date formatting, number formatting, and string sorting, through the standard I18N APIs defined in ECMA 402.
The **intl** module provides basic I18N capabilities, such as time and date formatting, number formatting, and string sorting, through the standard I18N APIs defined in ECMA 402.
The [I18N](js-apis-i18n.md) module provides enhanced I18N capabilities through supplementary APIs that are not defined in ECMA 402. It works with the Intl module to provide a complete suite of I18N capabilities.
The [i18n](js-apis-i18n.md) module provides enhanced I18N capabilities through supplementary APIs that are not defined in ECMA 402. It works with the Intl module to provide a complete suite of I18N capabilities.
> **NOTE**
>
> The initial APIs of this module are supported since API version 6. Newly added APIs will be marked with a superscript to indicate their earliest API version.
> **NOTE**
>
> The initial APIs of this module are supported since API version 6. Newly added APIs will be marked with a superscript to indicate their earliest API version.
| locale | string \| Array<string> | Yes | A string containing locale information, including the language, optional script, and region.|
| options<sup>9+</sup> | [RelativeTimeFormatInputOptions](#relativetimeformatinputoptions9) | No | Options for creating a **RelativeTimeFormat** object. |
| options<sup>9+</sup> | [RelativeTimeFormatInputOptions](#relativetimeformatinputoptions8) | No | Options for creating a **RelativeTimeFormat** object. |
**Example**
```
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@@ -720,7 +720,7 @@ Obtains the formatting options for **RelativeTimeFormat** objects.
```
## RelativeTimeFormatInputOptions<sup>9+</sup>
## RelativeTimeFormatInputOptions<sup>8+</sup>
Represents the properties of a **RelativeTimeFormat** object.
The **connection** module provides basic network management capabilities. You can obtain the default active data network or the list of all active data networks, enable or disable the airplane mode, and obtain network capability information.
The **ethernet** module provides wired network capabilities, which allow users to set the IP address, subnet mask, gateway, and Domain Name System (DNS) server of a wired network.
The **sharing** module allows you to share your device's Internet connection with other connected devices by means of Wi-Fi hotspot, Bluetooth, and USB sharing. It also allows you to query the network sharing state and shared mobile data volume.
The observer module provides event subscription management functions. You can register or unregister an observer that listens for the following events: network status change, signal status change, call status change, cellular data connection status, uplink and downlink data flow status of cellular data services, and SIM status change.
The **observer** module provides event subscription management functions. You can register or unregister an observer that listens for the following events: network status change, signal status change, call status change, cellular data connection status, uplink and downlink data flow status of cellular data services, and SIM status change.
The radio module provides basic network search management functions. You can obtain the radio access technology (RAT) used in the CS and PS domains, network status, current network selection mode, ISO country code of the registered network, ID of the slot in which the primary card is located, list of signal strengths of the registered network, carrier name, and IMEI, MEID, and unique device ID of the SIM card in the specified slot. Besides, you can check whether the current device supports 5G\(NR\) and whether the radio service is enabled on the primary SIM card.
The **radio** module provides basic network search management functions. You can obtain the radio access technology (RAT) used in the CS and PS domains, network status, current network selection mode, ISO country code of the registered network, ID of the slot in which the primary card is located, list of signal strengths of the registered network, carrier name, and IMEI, MEID, and unique device ID of the SIM card in the specified slot. Besides, you can check whether the current device supports 5G\(NR\) and whether the radio service is enabled on the primary SIM card.
The Resource Manager module provides APIs to obtain information about application resources based on the current configuration, including the language, region, screen direction, MCC/MNC, as well as device capability and density.
The **RPC** module implements communication between processes, including inter-process communication (IPC) on a single device and remote procedure call (RPC) between processes on difference devices. IPC is implemented based on the Binder driver, and RPC is based on the DSoftBus driver.
The **rpc** module implements communication between processes, including inter-process communication (IPC) on a single device and remote procedure call (RPC) between processes on difference devices. IPC is implemented based on the Binder driver, and RPC is based on the DSoftBus driver.
The **screenlock** module is a system module in OpenHarmony. It provides APIs for screen lock applications to subscribe to screen lock status changes as well as callbacks for them to receive the results. It also provides APIs for third-party applications to unlock the screen, obtain the screen locked status, and check whether a lock screen password has been set.
The **Screen** module implements basic screen management. You can use the APIs of this module to obtain a **Screen** object, listen for screen changes, and create and destroy virtual screens.
The **screen** module implements basic screen management. You can use the APIs of this module to obtain a **Screen** object, listen for screen changes, and create and destroy virtual screens.
The SIM management module provides basic SIM card management functions. You can obtain the name, number, ISO country code, home PLMN number, service provider name, SIM card status, type, installation status, activation status, and lock status of the SIM card in the specified slot. Besides, you can set the name, number, and lock status of the SIM card, activate or deactivate the SIM card, and change the PIN or unlock the PIN or PUK of the SIM card.
The **sim** module provides basic SIM card management functions. You can obtain the name, number, ISO country code, home PLMN number, service provider name, SIM card status, type, installation status, activation status, and lock status of the SIM card in the specified slot. Besides, you can set the name, number, and lock status of the SIM card, activate or deactivate the SIM card, and change the PIN or unlock the PIN or PUK of the SIM card.
The SMS module provides basic SMS management functions. You can create and send SMS messages, and obtain and set the default SIM card for sending and receiving SMS messages. Besides, you can obtain and set the SMSC address, and check whether the current device can send and receive SMS messages.
The **sms** module provides basic SMS management functions. You can create and send SMS messages, and obtain and set the default SIM card for sending and receiving SMS messages. Besides, you can obtain and set the SMSC address, and check whether the current device can send and receive SMS messages.
The **storageStatistics** module provides APIs for obtaining storage space information, including the space of built-in and plug-in memory cards, space occupied by different types of data, and space of application data.
This module allows you to query the charging status and remaining power of a device.
The **battery** module allows you to query the charging status and remaining power of a device.
> **NOTE**
> - The APIs of this module are no longer maintained since API version 6. It is recommended that you use [`@ohos.batteryInfo`](js-apis-battery-info.md) instead.
This module provides APIs for querying and adjusting the screen brightness and mode.
The **brightness** module provides APIs for querying and adjusting the screen brightness and mode.
> **NOTE**
> - The APIs of this module are no longer maintained since API version 7. It is recommended that you use [`@ohos.brightness`](js-apis-brightness.md) instead.
The cellular data module provides basic mobile data management functions. You can obtain and set the default slot of the SIM card used for mobile data, and obtain the uplink and downlink connection status of cellular data services and connection status of the packet switched (PS) domain. Besides, you can check whether cellular data services and data roaming are enabled.
The **data** module provides basic mobile data management functions. You can obtain and set the default slot of the SIM card used for mobile data, and obtain the uplink and downlink connection status of cellular data services and connection status of the packet switched (PS) domain. Besides, you can check whether cellular data services and data roaming are enabled.
The **update** module applies to updates throughout the entire system, including built-in resources and preset applications, but not third-party applications.
The USB module provides USB device management functions, including USB device list query, bulk data transfer, control transfer, and permission control.
The **usb** module provides USB device management functions, including USB device list query, bulk data transfer, control transfer, and permission control.
> **NOTE**
> **NOTE**
>
> The initial APIs of this module are supported since API version 8. Newly added APIs will be marked with a superscript to indicate their earliest API version.
The **usb** module provides USB device management functions, including USB device list query, bulk data transfer, control transfer, and permission control on the host side as well as port management, and function switch and query on the device side.
This module provides common utility functions, such as **TextEncoder** and **TextDecoder** for string encoding and decoding, **RationalNumber** for rational number operations, **LruBuffer** for buffer management, **Scope** for range determination, **Base64** for Base64 encoding and decoding, and **Types** for checks of built-in object types.
The **util** module provides common utility functions, such as **TextEncoder** and **TextDecoder** for string encoding and decoding, **RationalNumber** for rational number operations, **LruBuffer** for buffer management, **Scope** for range determination, **Base64** for Base64 encoding and decoding, and **Types** for checks of built-in object types.
The **webSocket** module implements WebSocket connection management and operation.
> **NOTE:**<br>
> **NOTE**<br>
> The initial APIs of this module are supported since API version 6. Newly added APIs will be marked with a superscript to indicate their earliest API version.
