Android uses notificationlistenerservice to listen for notification bar messages

Notificationlistenerservice is a service called by the system. When an application initiates a notification, the system will call back the notified application, action and information to notificationlistenerservice. However, you need to guide the user to authorize before use. Using notificationlistenerservice generally requires the following three steps.

Registration service

First, you need to register the service in androidmanifest.xml.

Inherit and implement notificationlistenerservice

Implement a service that inherits notificationlistenerservice and complete the required operations in onnotificationposted.

Guide users to authorize

Since this service requires the user to authorize manually, the user needs to be guided and set before use.

After authorization, the user can listen to all information in the notification bar.

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