Please do Help !!! Start by adding the proper Activity lifecycle methods needed to register and deregister the receiver.

Question

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");
  }
}

Answer 1 · 2018-02-09T13:26:35Z

February 9, 2018 1:26pm

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

public class TimeTravelActivity extends Activity {

public String targetYear;

private NetworkConnectionReceiver receiver = new NetworkConnectionReceiver(); @Override protected void onResume(){ super.onResume(); } @Override protected void onPause(){ super.onPause(); }

@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");

} }

Answer 2 · 2017-06-02T21:31:50Z

June 2, 2017 9:31pm

The key part to understand here is the "Start by adding the proper Activity lifecycle methods..." You should start by adding onResume/onPause.

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Tinashe Mutematsaka

Tinashe Mutematsaka

Please do Help !!! Start by adding the proper Activity lifecycle methods needed to register and deregister the receiver.

2 Answers

Clarence Tan

Clarence Tan

Seth Kroger

Seth Kroger