# Alarms

Device's alarms management.

# Manifest Declaration

You need to declare the use of this API in the manifest's features member:

{"name": "system.alarm"}

# Module Import

Before using this service in a component, you need to import the module in the script section of the UX document.

import alarm from '@system.alarm' 


let alarm = require("@system.alarm")

# Methods

This service has the following methods:

# getProvider()

Get information about the service provider, usually, the device vendor.

# Arguments

This method does not have arguments.

# Return

This method returns a string with the identifier of the service provide. Empty if there is no provider available.


let provider = alarm.getProvider()
// provider = huawei

# setAlarm({hour,minute,message,vibrate,days,ringtone,success,fail,complete})

Set an alarm.

This method sets an alarm in the device. A warning dialog will be displayed, asking the user for confirmation.

# Arguments

This method requires an object with the following attributes:

  • hour (number). Mandatory attribute with the alarm time (in hours). The range of the value is 0-23.
  • minute (number). Mandatory attribute with the alarm time (in minutes). The range of the value is 0-59.
  • message (string). Optional attribute with the name of the alarm (up to 200 characters).
  • vibrate (boolean). Optional flag that indicates whether to enable vibration (true, by default) or not (false).
  • days (array<number>). Optional attribute with the recurring pattern of the alarm. The alarm does not repeat by default. For example, [0,1,2,3,4,5,6] repeats the alarm every day, [0,1,2,3,4] only weekdays, [0,6] repeats the alarm on Monday and Sunday.
  • ringtone (string). Optional attribute with the ringtone. The file path may be a data file path or an in-app resource.
  • success (function()). Optional callback function for success.
  • fail (function()). Optional callback function for failure.
  • complete (function()). Optional callback function on completion, regardless success or failure of the call.


  import alarm from '@system.alarm' 
  export default {
    onReady () {
        hour: 6, 
        minute: 0, 
        message: 'Wake me up!!', 
        vibrate: true, 
        days: [0,1,2,3,4], 
        ringtone: '/Common/audio/ding.m4a', 
        success() { 
        fail(erromsg, errocode) { 
          console.error(`Set alarm failed, msg: ${erromsg} code: ${errocode}`) 
        complete() { 
          console.log('Done!' ) 

The system will show a confirmation dialog like the following.

Confirmation dialog on a Quick App