onSaveInstanceState not working

Question

I know this question has already been asked a lot, but I don\'t get why onSaveInstanceState isn\'t working for me. It\'s probably something stupid, but I hope some of you ca

Answer 1

public class Main extends Activity implements OnClickListener, OnKeyListener {

EditText textitem;
Button buttonadd;
ListView listitems;

ArrayList ToDo;
ArrayAdapter AA;
ArrayList MyArrayList;

/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);

    textitem = (EditText) findViewById(R.id.textitem);
    buttonadd = (Button) findViewById(R.id.buttonadd);
    listitems = (ListView) findViewById(R.id.listitems);

    buttonadd.setOnClickListener(this);
    textitem.setOnKeyListener(this);

    if(savedInstanceState!=null)
     {
       ToDo = savedInstanceState.getStringArrayList("MyArrayList");
     }
    else
     {
       ToDo = new ArrayList();
     }
    AA = new ArrayAdapter(this,
            android.R.layout.simple_list_item_1, ToDo);
    listitems.setAdapter(AA);

}

@Override
public void onSaveInstanceState(Bundle savedInstanceState) {
    savedInstanceState.putStringArrayList("MyArrayList", ToDo);
    super.onSaveInstanceState(savedInstanceState);
}


private void addItem(String item) {
    if (item.length() > 0) {
        this.ToDo.add(item);
        this.AA.notifyDataSetChanged();
        this.textitem.setText("");
    }
}

public void onClick(View v) {
    if (v == this.buttonadd) {
        this.addItem(this.textitem.getText().toString());
    }
}

public boolean onKey(View v, int keyCode, KeyEvent event) {
    if (event.getAction() == KeyEvent.ACTION_DOWN
            && keyCode == KeyEvent.KEYCODE_DPAD_CENTER) {
        this.addItem(this.textitem.getText().toString());
    }
    return false;
}

Hope this will help you. Vipul