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Android Intents and Broadcast Receivers Broadcast Receivers Creating a Receiver in Code

intents and broadcast receivers

Challenge Task 1 of 3

To conserve battery, we want to add a broadcast receiver in TimeTravelActivity so that it only receives broadcasts when this Activity is running. Start by adding the proper Activity lifecycle methods needed to register and deregister the receiver. For now, just call the same methods from the parent class in each method.

TimeTravelActivity.java
import android.os.Bundle;
import android.view.View;

public class TimeTravelActivity extends Activity {

  public String targetYear;

  private NetworkConnectionReceiver receiver = new NetworkConnectionReceiver();

  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_time_travel);

    Intent intent = getIntent();
    targetYear = intent.getStringExtra("EXTRA_YEAR");
    EnergySource source = (EnergySource)intent.getParcelableExtra("EXTRA_ENERGY");
  }
}

3 Answers

guys help me im stuck here especially steve and seth

Don Pavlik
PLUS
Don Pavlik
Courses Plus Student 4,133 Points

You need to override the methods in the activity lifecycle that are triggered when an activity becomes active and when it stops being active. The following link should help you: https://developer.android.com/guide/components/activities/activity-lifecycle.html

thnx don but its like um not getting it ryt

Don Pavlik
Don Pavlik
Courses Plus Student 4,133 Points

Did you add an override for onResume and call the parent classes super?

The answer for this can be found in the video preceding this coding exercise.