Creating the Broadcast ReceiverĪ broadcast receiver is implemented as a subclass of BroadcastReceiver class and overriding the onReceive() method where each message is received as a Intent object parameter. In the example, the intent points explicitly to the activity being started. The startActivityForResult method takes an intent and a request code. When the user clicks the Get A Result button, Android calls startActivityForResult (intent, MYREQUESTCODE). There is one additional steps in case you are going to implement your custom intents then you will have to create and broadcast those intents. First, the user sees the GetResultActivity. Registering Broadcast Receiver There is one additional steps in case you are going to implement your custom intents then you will have to create and broadcast those intents. There are following two important steps to make BroadcastReceiver works for the system broadcasted intents − There are following two important steps to make BroadcastReceiver works for the system broadcasted intents Creating the Broadcast Receiver. In this case, an Intent is used to start a new activity. For example, applications can also initiate broadcasts to let other applications know that some data has been downloaded to the device and is available for them to use, so this is broadcast receiver who will intercept this communication and will initiate appropriate action. An Intent is an abstract description of an operation to be performed.
These messages are sometime called events or intents. Broadcast Receivers simply respond to broadcast messages from other applications or from the system itself.
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