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

Cal Song
Cal Song
13,934 Points

Having a problem with SharedPreferences and context.MODE_PRIVATE

Hi. So I'm trying to solve Task 2 of 4 for this question and


    mSharedpreferences = getSharedPreferences(PREFS_FILE, Context.MODE_PRIVATE);

this code looks fine and runs without any problem with Android Studio,

the problem accepts it as a wrong value.

Any idea what went wrong with this?

import android.view.View;
import android.os.Bundle;
import android.content.Context;
import android.widget.EditText;

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;

  protected void onCreate(Bundle savedInstanceState) {

    mCheckBox = (CheckBox) findViewById(R.id.checkBox);
    mSharedPreferences = getSharedPreferences(PREFS_FILE, Context.MODE_PRIVATE);
    mEditor = mSharedPreferences.edit();

1 Answer

Jason Anders
Jason Anders
Treehouse Moderator 145,692 Points

Hey Cal,

Your code is correct for Task 2 of the Challenge, except you seem to have 2 extra import statements that weren't asked for and are not needed. Just delete the two you added and the challenge will pass. (Delete these: :arrow_down:)

import android.content.Context;
import android.widget.EditText;

Good work. Keep Coding! :)