harmony 鸿蒙Enabling Notification

2023-02-03
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Enabling Notification

To publish a notification, you must have notification enabled for your application. You can call the requestEnableNotification() API to display a dialog box prompting the user to enable notification for your application. Note that the dialog box is displayed only when the API is called for the first time.

Figure 1 Dialog box prompting the user to enable notification

en-us_image_0000001416585590

Touching allow enables notification for the application, and touching ban keeps notification disabled.
The dialog box will not be displayed again when requestEnableNotification() is called later. The user can manually enable notification as follows.

1. Swipe down from the upper left corner of the device screen to access the notification panel.	2. Touch the Settings icon in the upper right corner. On the notification screen, locate the target application.	3. Toggle on Allow notifications.

Available APIs

For details about the APIs, see @ohos.notificationManager.

Table 1 Notification APIs

Name	Description
isNotificationEnabled(bundle: BundleOption, callback: AsyncCallback<boolean>): void	Checks whether notification is enabled. NOTE This is a system API and cannot be called by third-party applications.
setNotificationEnable(bundle: BundleOption, enable: boolean, callback: AsyncCallback<void>): void	Sets whether to enable notification. Notification can be enabled or disabled in Notifications of the target application under Settings > Apps & services > Apps. NOTE This is a system API and cannot be called by third-party applications.
requestEnableNotification(callback: AsyncCallback<void>): void	Requests notification to be enabled. When called for the first time, this API displays a dialog box prompting the user to enable notification.

How to Develop

Import the NotificationManager module.

   import notificationManager from '@ohos.notificationManager';
   import Base from '@ohos.base';

Call the API to request notification to be enabled.

   notificationManager.requestEnableNotification().then(() => {
       console.info(`[ANS] requestEnableNotification success`);
   }).catch((err:Base.BusinessError) => {
       console.error(`[ANS] requestEnableNotification failed, code is ${err.code}, message is ${err.message}`);
   });