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Android Android Activity Lifecycle The Activity Lifecycle Saving and Retrieving Instance State

Retrieve and Restore the value in TextView

I don't understand what is that I am missing here. Please review the code changes that i did to validate and suggest me on the same.

import android.content.Intent;
import android.view.View;

public class MainActivity extends Activity {
  private static final String KEY_USERENTRY = "KEY_USERENTRY";
  public TextView mTextView;
  private Int mValue;

  protected void onCreate(Bundle savedInstanceState) {

    mTextView = (TextView) findViewById(R.id.textView);

    protected void onSaveInstanceState(Bundle outState) {

      outState.putInt(KEY_USERENTRY, 10);


    protected void onRestoreInstanceState(Bundle savedInstanceState) {

      mValue = savedInsanceState.getInt(KEY_USERENTRY);
      mTextView.setText(mValue + "");

1 Answer

Ben Deitch
Ben Deitch
Treehouse Teacher

Just looked it over real quick, but Int should be lowercase:

  private int mValue;