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

Posted by Joe Jane
Joe Jane
175 Points

need help sharedprefrences

pls help

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

public class MainActivity extends Activity {

  public CheckBox mCheckBox;
  private static final String PREFS_FILE = "";
  private static final String KEY_CHECKBOX = "";
  private SharedPreferences mSharedPreferences;
  private SharedPreferences.Editor mEditor;

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

    mCheckBox = (CheckBox) findViewById(R.id.checkBox);
    mSharedPreferences = getSharedPreferences(PREFS_FILE, Context.MODE_PRIVATE);
    mEditor = mSharedPreferences.edit();
    boolean isChecked = mSharedPreferences.getBoolean(KEY_CHECKBOX);
  }

  @Override
    protected void onPause() {
        super.onPause();
        mEditor.putBoolean(KEY_CHECKBOX, mCheckBox.isChecked());
        mEditor.apply();
    }
}

1 Answer