How can the push function be realized on Android?

Android push function can be implemented in several ways: 1. Using Google’s Firebase Cloud Messaging (FCM) service. This is a free cloud push service launched by Google, which can help developers send push notifications to Android devices. Developers need to integrate FCM SDK into their own applications, configure the content of push notifications and target devices through the Firebase console, and then send push notifications to target devices by calling the FCM API. 2. Using SDKs from third-party push service providers. There are many push service providers in the market, such as JPush, Getui, and XG Push, all of which provide push services for the Android platform. Developers can choose one of these push service providers, integrate the corresponding SDK according to the documentation they provide, and implement push functionality by calling the interfaces provided by the SDK. 3. Implementing push functionality on their own. Developers can build push servers themselves and send push notifications to devices through long connections or polling with Android devices. This method requires developers to have the ability to build and manage push servers, and consider factors such as the device’s network connection status and power consumption, which is more complex. Regardless of the method chosen, developers also need to register the corresponding permissions and services in the Android application in order to receive push notifications. Specific implementation steps and code can be found in relevant documentation and examples.