Android Studio - create database using SQLite

I'm trying to create a simple database app using android studio. The problem is that when I ran it, it doesn't display anything.

Here's my main_activity class:

import android.support.v7.app.ActionBarActivity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;


public class MainActivity extends ActionBarActivity {

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


    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.menu_main, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        // Handle action bar item clicks here. The action bar will
        // automatically handle clicks on the Home/Up button, so long
        // as you specify a parent activity in AndroidManifest.xml.
        int id = item.getItemId();

        //noinspection SimplifiableIfStatement
        if (id == R.id.action_settings) {
            return true;
        }

        return super.onOptionsItemSelected(item);
    }
}

AndroidSQLite:

import android.os.Bundle;
import android.app.Activity;
import android.database.Cursor;
import android.os.Bundle;
import android.widget.ListView;
import android.widget.SimpleCursorAdapter;

public class AndroidSQLite extends Activity {

    private SQLiteAdapter mySQLiteAdapter;

    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState)
    {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        ListView listContent = (ListView)findViewById(R.id.contentlist);

        /*
         *  Create/Open a SQLite database
         *  and fill with dummy content
         *  and close it
         */
        mySQLiteAdapter = new SQLiteAdapter(this);
        mySQLiteAdapter.openToWrite();
        mySQLiteAdapter.deleteAll();

        mySQLiteAdapter.insert("A for Apply");
        mySQLiteAdapter.insert("B for Boy");
        mySQLiteAdapter.insert("C for Cat");
        mySQLiteAdapter.insert("D for Dog");
        mySQLiteAdapter.insert("E for Egg");
        mySQLiteAdapter.insert("F for Fish");
        mySQLiteAdapter.insert("G for Girl");
        mySQLiteAdapter.insert("H for Hand");
        mySQLiteAdapter.insert("I for Ice-scream");
        mySQLiteAdapter.insert("J for Jet");
        mySQLiteAdapter.insert("K for Kite");
        mySQLiteAdapter.insert("L for Lamp");
        mySQLiteAdapter.insert("M for Man");
        mySQLiteAdapter.insert("N for Nose");
        mySQLiteAdapter.insert("O for Orange");
        mySQLiteAdapter.insert("P for Pen");
        mySQLiteAdapter.insert("Q for Queen");
        mySQLiteAdapter.insert("R for Rain");
        mySQLiteAdapter.insert("S for Sugar");
        mySQLiteAdapter.insert("T for Tree");
        mySQLiteAdapter.insert("U for Umbrella");
        mySQLiteAdapter.insert("V for Van");
        mySQLiteAdapter.insert("W for Water");
        mySQLiteAdapter.insert("X for X'mas");
        mySQLiteAdapter.insert("Y for Yellow");
        mySQLiteAdapter.insert("Z for Zoo");

        mySQLiteAdapter.close();

        /*
         *  Open the same SQLite database
         *  and read all it's content.
         */
        mySQLiteAdapter = new SQLiteAdapter(this);
        mySQLiteAdapter.openToRead();

        Cursor cursor = mySQLiteAdapter.queueAll();
        startManagingCursor(cursor);

        String[] from = new String[]{SQLiteAdapter.KEY_CONTENT};
        int[] to = new int[]{R.id.text};

        SimpleCursorAdapter cursorAdapter =
                new SimpleCursorAdapter(this, R.layout.row, cursor, from, to);

        listContent.setAdapter(cursorAdapter);

        mySQLiteAdapter.close();


    }
}

SQLiteAdapter:

import android.database.sqlite.SQLiteOpenHelper;
        import android.content.ContentValues;
        import android.content.Context;
        import android.database.Cursor;
        import android.database.sqlite.SQLiteDatabase;
        import android.database.sqlite.SQLiteOpenHelper;
        import android.database.sqlite.SQLiteDatabase.CursorFactory;

public class SQLiteAdapter {

    public static final String MYDATABASE_NAME = "MY_DATABASE";
    public static final String MYDATABASE_TABLE = "MY_TABLE";
    public static final int MYDATABASE_VERSION = 1;
    public static final String KEY_ID = "_id";
    public static final String KEY_CONTENT = "Content";

    //create table MY_DATABASE (ID integer primary key, Content text not null);
    private static final String SCRIPT_CREATE_DATABASE =
            "create table " + MYDATABASE_TABLE + " ("
                    + KEY_ID + " integer primary key autoincrement, "
                    + KEY_CONTENT + " text not null);";

    private SQLiteHelper sqLiteHelper;
    private SQLiteDatabase sqLiteDatabase;

    private Context context;

    public SQLiteAdapter(Context c){
        context = c;
    }

    public SQLiteAdapter openToRead() throws android.database.SQLException {
        sqLiteHelper = new SQLiteHelper(context, MYDATABASE_NAME, null, MYDATABASE_VERSION);
        sqLiteDatabase = sqLiteHelper.getReadableDatabase();
        return this;
    }

    public SQLiteAdapter openToWrite() throws android.database.SQLException {
        sqLiteHelper = new SQLiteHelper(context, MYDATABASE_NAME, null, MYDATABASE_VERSION);
        sqLiteDatabase = sqLiteHelper.getWritableDatabase();
        return this;
    }

    public void close(){
        sqLiteHelper.close();
    }

    public long insert(String content){

        ContentValues contentValues = new ContentValues();
        contentValues.put(KEY_CONTENT, content);
        return sqLiteDatabase.insert(MYDATABASE_TABLE, null, contentValues);
    }

    public int deleteAll(){
        return sqLiteDatabase.delete(MYDATABASE_TABLE, null, null);
    }

    public Cursor queueAll(){
        String[] columns = new String[]{KEY_ID, KEY_CONTENT};
        Cursor cursor = sqLiteDatabase.query(MYDATABASE_TABLE, columns,
                null, null, null, null, null);

        return cursor;
    }

    public class SQLiteHelper extends SQLiteOpenHelper {

        public SQLiteHelper(Context context, String name,
                            CursorFactory factory, int version) {
            super(context, name, factory, version);
        }

        @Override
        public void onCreate(SQLiteDatabase db) {
            // TODO Auto-generated method stub
            db.execSQL(SCRIPT_CREATE_DATABASE);
        }

        @Override
        public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
            // TODO Auto-generated method stub

        }

    }

}

and the activity_main.xml:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://ift.tt/nIICcg"
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    >

    <ListView
        android:id="@+id/contentlist"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"/>

</LinearLayout>

I've been debugging it for a while but I can't really get what I'm doing wrong. Any ideas?