Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

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

Posted by Tomy Lusy
Tomy Lusy
136 Points

task 2

task 2 don't know what is wrong

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

public class MainActivity extends Activity {
  private static final String PREFS_FILE = "com.packagename.preferences";
  private static final String KEY_CHECKBOX = "KEY_CHECKBOX";


  public CheckBox mCheckBox;

  private SharedPreferences mSharedPreferences;
  private SharedPreferences.Editor mEditor;

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

   mSharedPreferences = getSharedPreferences(PREFS_FILE, Context.MODE_PRIVATE);


  }

}

1 Answer

Algenis Romero
Algenis Romero
6,987 Points
Algenis Romero
Algenis Romero
6,987 Points

Change private static final String PREFS_FILE = "com.packagename.preferences"; with private static final String PREFS_FILE = "";