satya - Thursday, September 25, 2008 2:58:25 PM

\res\layout\notepad_list.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
      android:layout_width="wrap_content"
    android:layout_height="wrap_content">

	<ListView android:id="@id/android:list"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"/>

  	<TextView android:id="@id/android:empty"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="@string/no_notes"/>
        
</LinearLayout>

satya - Thursday, September 25, 2008 2:59:20 PM

\res\layout\notes_raw.xml

<?xml version="1.0" encoding="utf-8"?>
<TextView android:id="@+id/text1"
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"/>

satya - Thursday, September 25, 2008 3:00:08 PM

\res\values\strings.xml

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <string name="app_name">Notepad v1</string>
    <string name="no_notes">No Notes Yet</string>
    <string name="menu_insert">Add Item</string>
</resources>

satya - Thursday, September 25, 2008 3:02:28 PM

\AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.android.demo.notepad1">
    <application android:icon="@drawable/icon">
        <activity android:name=".Notepadv1" android:label="@string/app_name">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>
</manifest>

satya - Thursday, September 25, 2008 3:11:06 PM

R.java

public final class R {
    public static final class attr {
    }
    public static final class drawable {
        public static final int icon=0x7f020000;
    }
    public static final class id {
        public static final int text1=0x7f050000;
    }
    public static final class layout {
        public static final int notepad_list=0x7f030000;
        public static final int notes_row=0x7f030001;
    }
    public static final class string {
        public static final int app_name=0x7f040000;
        public static final int menu_insert=0x7f040002;
        public static final int no_notes=0x7f040001;
    }
}

satya - Friday, September 26, 2008 10:13:53 AM

notepadv1.java: exercising the xml, main line code

import android.app.ListActivity;
import android.database.Cursor;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.SimpleCursorAdapter;

public class Notepadv1 extends ListActivity {
	public static final int INSERT_ID = Menu.FIRST;
	
	private int mNoteNumber = 1;
	private NotesDbAdapter mDbHelper;
    
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.notepad_list);
        mDbHelper = new NotesDbAdapter(this);
        mDbHelper.open();
        fillData();
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
    	boolean result = super.onCreateOptionsMenu(menu);
        menu.add(0, INSERT_ID, 0, R.string.menu_insert);
        return result;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
    	switch (item.getItemId()) {
        case INSERT_ID:
            createNote();
            return true;
        }
        return super.onOptionsItemSelected(item);
    }
    
    private void createNote() {
        String noteName = "Note " + mNoteNumber++;
        mDbHelper.createNote(noteName, "");
        fillData();
    }
    
    private void fillData() {
        // Get all of the notes from the database and create the item list
        Cursor c = mDbHelper.fetchAllNotes();
        startManagingCursor(c);

        String[] from = new String[] { NotesDbAdapter.KEY_TITLE };
        int[] to = new int[] { R.id.text1 };
        
        // Now create an array adapter and set it to display using our row
        SimpleCursorAdapter notes =
            new SimpleCursorAdapter(this, R.layout.notes_row, c, from, to);
        setListAdapter(notes);
    }
}

satya - Friday, September 26, 2008 10:19:40 AM

See the source code for database access here

See the source code for database access here