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Android Android Activity Lifecycle Introducing SharedPreferences Saving and Retrieving Data with SharedPreferences

Carlo Antonio Bilbao
Carlo Antonio Bilbao
24,113 Points

Android Activity Lifecycle, Saving and Retrieving using SharedPreferences Challenge

Not Sure why im getting "used static final for constant" as an error. I feel like I'm missing something simple.

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

public class MainActivity extends Activity {

  private static final String PREFS_FILE = "KEY_CHECKBOX";

  public CheckBox mCheckBox;

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

    mCheckBox = (CheckBox) findViewById(R.id.checkBox);
  }
}

1 Answer

For this challenge you have to declare to constants called PREFS_FILE and KEY_CHECKBOX and assign them values as you see fit.

private static final String PREFS_FILE = "prefs";
private static final String KEY_CHECKBOX = "key_checkbox";