Question

I created a broadcast receiver in the main activity and the background service which is sending broadcast intents. The application crashes each time I try to run it and the Log displays the following error message:

10-04 13:30:43.218:
ERROR/AndroidRuntime(695):
java.lang.RuntimeException: Error
receiving broadcast Intent {
action=com.client.gaitlink.CommunicationService.action.LOGIN_STATUS_UPDATE
(has extras) } in
com.client.gaitlink.GaitLink$LoginStatusReceiver@431690e8

The broadcast message is sent from CommunicationService class in the following method:

private void announceLoginStatus(){
    Intent intent = new Intent(LOGIN_STATUS_UPDATE);
    intent.putExtra(SERVER_MESSAGE, mServerResponseMessage);
    intent.putExtra(SESSION_STRING, mSessionString);
    sendBroadcast(intent);
}

where

String LOGIN_STATUS_UPDATE = "com.client.gaitlink.CommunicationService.action.LOGIN_STATUS_UPDATE"

in the main activity the following broadcast reveiver is defined:

public class LoginStatusReceiver extends BroadcastReceiver {

        public void onReceive(Context context, Intent intent) {
            String serverMessage = intent.getStringExtra(CommunicationService.SERVER_MESSAGE);
            String sessionString = intent.getStringExtra(CommunicationService.SESSION_STRING);

            userInfo.setSessionString(sessionString);
            saveSettings();
        }
    }

and registered in onResume method:

        IntentFilter loginStatusFilter;
        loginStatusFilter = new IntentFilter(CommunicationService.LOGIN_STATUS_UPDATE);
        loginStatusReceiver = new LoginStatusReceiver();
        registerReceiver(loginStatusReceiver, loginStatusFilter);

And the manifest file includes the following:

<activity android:name=".GaitLink"
              android:label="@string/app_name">
        <intent-filter>
            ...
            <action android:name="com.client.gaitlink.CommunicationService.action.LOGIN_STATUS_UPDATE" />
        </intent-filter>
    </activity>

I would really appreciate if anyone could explain why the Log displays the message above and the application crashes.

Thanks!

Answer 1

Have you gone step by step in the debugger to find exactly where the crash occurs?

One thing to look out for is if you are overriding any Android lifecycle events that you are properly calling the base class’s constructor when necessary.