To Do list chapter one

WaJMHome · March 14th, 2010, 09:00 PM

****edit I meant chapter 2****

Eclipse is telling me that Edit Text is an invalid type :?

Code:


package com.paad.TodoList;

import android.app.Activity;
import android.os.Bundle;
import android.widget.ListView;


public class TodoList extends Activity {
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        // Get references to UI widgets
        ListView myListView = (ListView)findViewById(R.id.myListView);
        final EditText = (EditText)findViewById(R.id.myEditText);
        final ArrayAdapter<String> todoItems = new ArrayList<String>();
        final ArrayAdapter<String> aa;
        aa = new ArrayAdapter<String>(this,
        							  android.R.layout.simple_list_item_1,
        							  todoItems);
        myListeView.setAdapter(aa);
        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) {
        			todoItems.add(0, myEditText.getText().toString());
        			aa.notifyDataSetChanged();
        			myEditText.setText("");
        			return true;
        		}
        	return false;
        }
    });
}
        
        
        
    
}

PeterPeiGuo · March 14th, 2010, 09:04 PM

You missed the variable name after EditText.

WaJMHome · March 15th, 2010, 09:50 PM

:p
What a dumb mistake. Guess its true that you shouldn't program when your tired...

ojbux · March 17th, 2010, 10:05 PM

Hi I'm also on chapter 2 on the todo list but i'm getting a different error.
Eclipse is telling me that ListView, ArrayAdapter, and OnKeyListener cannot be resolved to a type.

Code:

package com.paad.todolist;

import java.util.ArrayList;

import android.app.Activity;
import android.os.Bundle;
import android.widget.EditText;

public class ToDoList extends Activity {
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        
        // Inflate your view
        setContentView(R.layout.main);
        
        // Get references to UI widgets
        ListView myListView = (ListView)findViewById(R.id.myListView);
        final EditText myEditText = (EditText)findViewById(R.id.myEditText);
        
        // Create the array list of to do items
        final ArrayList<String>	todoItems = new ArrayList<String>();
        
        // Create the array adapter to bind the array to the listview
        final ArrayAdapter<String> aa;
        aa = new ArrayAdapter<String>(this,
        							android.R.layout.simple_list_item_1,
        							todoItems);
        
        // Bind the array adapter to the listview
        myListView.setAdapter(aa);
        
        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){
        				todoItems.add(0, myEditText.getText().toString());
        				aa.notifyDataSetChanged();
        				myEditText.setText("");
        				return true;
        			}
        		return false;
        	}
        });
    }
}

WaJMHome · March 17th, 2010, 10:28 PM

Quote:

Originally Posted by ojbux

Hi I'm also on chapter 2 on the todo list but i'm getting a different error.
Eclipse is telling me that ListView, ArrayAdapter, and OnKeyListener cannot be resolved to a type.

Code:

package com.paad.todolist;

import java.util.ArrayList;

import android.app.Activity;
import android.os.Bundle;
import android.widget.EditText;

public class ToDoList extends Activity {
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        
        // Inflate your view
        setContentView(R.layout.main);
        
        // Get references to UI widgets
        ListView myListView = (ListView)findViewById(R.id.myListView);
        final EditText myEditText = (EditText)findViewById(R.id.myEditText);
        
        // Create the array list of to do items
        final ArrayList<String>	todoItems = new ArrayList<String>();
        
        // Create the array adapter to bind the array to the listview
        final ArrayAdapter<String> aa;
        aa = new ArrayAdapter<String>(this,
        							android.R.layout.simple_list_item_1,
        							todoItems);
        
        // Bind the array adapter to the listview
        myListView.setAdapter(aa);
        
        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){
        				todoItems.add(0, myEditText.getText().toString());
        				aa.notifyDataSetChanged();
        				myEditText.setText("");
        				return true;
        			}
        		return false;
        	}
        });
    }
}

Did you try using control + shift + o to import the needed libraries such as :D

Code:

import android.widget.ListView;

EricTapia · March 17th, 2010, 10:29 PM

import these

Code:

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;

ojbux · March 17th, 2010, 10:43 PM

Oh cool. Hey thanks guys. that worked!

Roy X · November 14th, 2011, 09:41 AM

Hi,
I am at chapter 2 also, but still get the error.
My code.

package com.example.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 Todo_List extends Activity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
// Inflate your view
setContentView(R.layout.main);
// Get references to UI widgets
ListView myListView = (ListView)findViewById(R.id.myListView);
final EditText myEditText = (EditText)findViewById(R.id.myEditText);

// Create the array list of to do items
final ArrayList<String> todoItems = new ArrayList<String>();
// Create the array adapter to bind the array to the listview
final ArrayAdapter<String> aa;
aa = new ArrayAdapter<String>(this,
android.R.layout.simple_list_item_1,
todoItems);
// Bind the array adapter to the listview.
myListView.setAdapter(aa);

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)
{
todoItems.add(0, myEditText.getText().toString());
aa.notifyDataSetChanged();
myEditText.setText("");
return true;
}
return false;
}
});

}

}

What can be wrong?
The error I am receiving is:
Sorry!
The application Todo_List
(process com.example.
todolist) has stopped
unexpectedly. Please try again.
[Force close]

Regards, Fredrik.

Roy X · November 14th, 2011, 10:12 AM

Hi,
I found the problem.
Add:
super.onCreate(savedInstanceState);
after line:
public void onCreate(Bundle savedInstanceState) {
and it works fine

/Fredrik.