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SMS

import InstallSection from '/components/plugins/InstallSection'; import PlatformsSection from '/components/plugins/PlatformsSection';

expo-sms provides access to the system's UI/app for sending SMS messages.

Installation

API

import * as SMS from 'expo-sms';

SMS.isAvailableAsync()

Determines whether SMS is available.

Returns

Returns a promise that resolves to a Boolean, indicating whether SMS is available on this device.

Example

const isAvailable = await SMS.isAvailableAsync();
if (isAvailable) {
  // do your SMS stuff here
} else {
  // misfortune... there's no SMS available on this device
}

SMS.sendSMSAsync(addresses, message)

Opens the default UI/app for sending SMS messages with prefilled addresses and message.

Arguments

  • addresses (Array<string>|string) -- An array of addresses (phone numbers) or single address passed as strings. Those would appear as recipients of the prepared message.

  • message (string) -- Message to be sent.

  • options (optional) (object) -- A map defining additional sms configuration options

    • attachments (optional) (Array<\object>|object) -- An array of SMSAttachment objects or single object. Android supports only one attachment.

Returns

Returns a Promise that resolves when the SMS action is invoked by the user, with corresponding result:

  • If the user cancelled the SMS sending process: { result: 'cancelled' }.
  • If the user has sent/scheduled message for sending: { result: 'sent' }.
  • If the status of the SMS message cannot be determined: { result: 'unknown' }.

Android does not provide information about the status of the SMS message, so on Android devices the Promise will always resolve with { result: 'unknown' }.

Note: The only feedback collected by this module is whether any message has been sent. That means we do not check actual content of message nor recipients list.

Example

const { result } = await SMS.sendSMSAsync(
  ['0123456789', '9876543210'],
  'My sample HelloWorld message',
  attachments: {
    uri: 'path/myfile.png',
    mimeType: 'image/png',
    filename: 'myfile.png',
  }
);

Related types

SMSAttachment

An object that is used to describe an attachment that is included with a SMS message.

  • uri (string) -- the content URI of the attachment. The URI needs be a content URI so that it can be accessed by other applications outside of Expo. (See FileSystem.getContentUriAsync)
  • mimeType (string) -- the mime type of the attachment such as image/png
  • filename (string) -- the filename of the attachment