A Broadcast Receiver in Android is a component that allows an application to receive and respond to system-wide broadcast announcements. These announcements can come from the system itself (e.g., "battery low" or "screen turned off") or from other applications.
Broadcast Receivers act as event listeners, waiting for specific events or intents to be broadcast by the system or other applications. When a matching broadcast is received, the Broadcast Receiver is activated and can perform specific actions in response to the event.
Here are some key points about Broadcast Receivers:
Registration
Broadcast Receivers can be registered in two ways:
Statically: By declaring them in the application's manifest file (AndroidManifest.xml).
Dynamically: By registering them programmatically in the application's code using the registerReceiver() method.
Lifecycle
Broadcast Receivers have a simple lifecycle:
When a matching broadcast is received, the onReceive() method is called.
