harmony 鸿蒙Publishing a Text Notification

2023-02-03
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Publishing a Text Notification

You can publish text notifications to send SMS messages, alert messages, and more. There are two types of text notifications: normal text and multi-line text.

Table 1 Basic notification content types

Type	Description
NOTIFICATION_CONTENT_BASIC_TEXT	Normal text notification.
NOTIFICATION_CONTENT_MULTILINE	Multi-line text notification.

Available APIs

The following table describes the APIs for notification publishing. You specify the notification information – content, ID, slot type, and publish time – by setting the NotificationRequest parameter in the APIs.

Name	Description
publish(request: NotificationRequest, callback: AsyncCallback<void>): void	Publishes a notification.

How to Develop

Import the module.

   import { notificationManager } from '@kit.NotificationKit';
   import { BusinessError } from '@kit.BasicServicesKit';
   import { hilog } from '@kit.PerformanceAnalysisKit';
   
   const TAG: string = '[PublishOperation]';
   const DOMAIN_NUMBER: number = 0xFF00;

Create a NotificationRequest object and publish a progress notification.

A normal text notification consists of the title, text, and additionalText fields. For details, see NotificationBasicContent.

  let notificationRequest: notificationManager.NotificationRequest = {
    id: 1,
    content: {
      notificationContentType: notificationManager.ContentType.NOTIFICATION_CONTENT_BASIC_TEXT, // Basic notification
      normal: {
        title: 'test_title',
        text: 'test_text',
        additionalText: 'test_additionalText',
      }
    }
  };
  notificationManager.publish(notificationRequest, (err: BusinessError) => {
    if (err) {
      hilog.error(DOMAIN_NUMBER, TAG, `Failed to publish notification. Code is ${err.code}, message is ${err.message}`);
      return;
    }
    hilog.info(DOMAIN_NUMBER, TAG, 'Succeeded in publishing notification.');
  });

In addition to the fields in the normal text notification, the multi-line text notification provides the lines, briefText, and longTitle fields. For details, see NotificationMultiLineContent.

  let notificationRequest: notificationManager.NotificationRequest = {
    id: 3,
    content: {
      notificationContentType: notificationManager.ContentType.NOTIFICATION_CONTENT_MULTILINE, // Multi-line text notification
      multiLine: {
        title: 'test_title',
        text: 'test_text',
        briefText: 'test_briefText',
        longTitle: 'test_longTitle',
        lines: ['line_01', 'line_02', 'line_03'],
      }
    }
  };
  // Publish the notification.
  notificationManager.publish(notificationRequest, (err: BusinessError) => {
    if (err) {
      hilog.error(DOMAIN_NUMBER, TAG, `Failed to publish notification. Code is ${err.code}, message is ${err.message}`);
      return;
    }
    hilog.info(DOMAIN_NUMBER, TAG, 'Succeeded in publishing notification.');
  });