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BOOK: Professional Android Application Development ISBN: 978-0-470-34471-2
This is the forum to discuss the Wrox book Professional Android Application Development by Reto Meier; ISBN: 9780470344712
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  #1 (permalink)  
Old December 21st, 2009, 11:50 AM
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Default Chapter2 error

JDK : 1.6
Eclipse : 3.5
SDK : 2.0.1
I got error message.
(The application To Do List (process com.jeon.todolist)has stopped
unexpectedly. please try again.

What is problem?


Example Code.

package com.jeon.todolist;

import java.util.ArrayList;
import android.app.Activity;
import android.os.Bundle;
import android.view.KeyEvent;
import android.view.View;
import android.view.View.OnKeyListener;
import android.widget.ArrayAdapter;
import android.widget.EditText;
import android.widget.ListView;

public class ToDoList extends Activity {

public void onCreate(Bundle icicle) {

// Inflate your view

// Get references to UI widgets
ListView myListView = (ListView)findViewById(R.id.myListView);
final EditText myEditText = (EditText)findViewById(R.id.myEditText);

// Create the ArrayList and the ArrayAdapter
final ArrayList<String> todoItems = new ArrayList<String>();
final ArrayAdapter<String> aa = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1,todoItems);

// Bind the listview to the array adapter

// Add key listener to add the new todo item
// when the middle D-pad button is pressed.
myEditText.setOnKeyListener(new OnKeyListener() {
public boolean onKey(View v, int keyCode, KeyEvent event) {
if (event.getAction() == KeyEvent.ACTION_DOWN)
if (keyCode == KeyEvent.KEYCODE_DPAD_CENTER) {
// Add the new todo item, and clear the input text box
todoItems.add(0, myEditText.getText().toString());
return true;
return false;


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  #2 (permalink)  
Old January 4th, 2010, 04:27 PM
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Default Re: Chapter2 Error

I got the same error when I neglected to call super.onCreate(icicle).

That invocation does not appear in my text.

When I put it in, things worked.
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