Why does onReceive immediately fire after registerReceiver?

Question

Android

Good afternoon.
Actually, the question is in the header,
as soon as I register the receiver to track changes in the connection to the Internet like this:

receiver = new BroadcastReceiver() {
            public void onReceive(Context context, Intent intent) {
                if (NivaUtils.isConnected(context)) {
                    final ProgressDialog progress = NivaUtils.showProgressDialog(getActivity());
                    ...
                }
            }
        };
getActivity().registerReceiver(receiver, new IntentFilter(ConnectivityManager.CONNECTIVITY_ACTION))

it immediately executes the onReceive method.
ps Thank you!

Answer 1

Receivers are generally crazy in terms of calls.
It is better to always check that the call occurred exactly for the action you need.

if(intent.getAction().equals("SOME_ACTION") {

}