onRestoreInstanceState retrieving a int and setting the TextView

Question

Why doesnt this work:

mTextView.setText(savedInstanceState.getInt(KEY_USERENTRY));

or

mTextView.setText("" + savedInstanceState.getInt(KEY_USERENTRY));

MainActivity.java

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

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


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

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

    @Override
    protected void onSaveInstanceState(Bundle outState) {
        super.onSaveInstanceState(outState);
        outState.putInt(KEY_USERENTRY, 10);
    }

    @Override
    protected void onRestoreInstanceState(Bundle savedInstanceState) {
        super.onRestoreInstanceState(savedInstanceState);
         mTextView.setText(savedInstanceState.getInt(KEY_USERENTRY)); 
    }
}

Answer 1 · 2016-03-21T21:39:00Z

March 21, 2016 9:39pm

Because setText() is expecting a String but you are passing in an int. You could do this:

mTextView.setText(savedInstanceState.getInt(KEY_USERENTRY) + "");

Answer 2 · 2016-03-22T19:49:55Z

March 22, 2016 7:49pm

Ah right, I did it the wrong way round and placed the empty string before the savedInstanceState was called. Thank you very much :)

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Daniel Maia

Daniel Maia

onRestoreInstanceState retrieving a int and setting the TextView

2 Answers

Kourosh Raeen

Kourosh Raeen

Daniel Maia

Daniel Maia