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Android

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

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");
  }
}

2 Answers

Clarence Tan
Clarence Tan
75,023 Points

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");

} }

Seth Kroger
Seth Kroger
56,403 Points

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