Using a SQLite database in Libgdx

Question

I\'m new in Libgdx and I\'m getting trouble on using a database on my game.

I searched for a tutorial on how to make SQLite work on both Android and Desktop applications

Answer 1

There is an extension (called gdx-sqlite) that I wrote which will do most of the work you require. Latest build of this extension can be downloaded from here. The source code and read me are located at: https://github.com/mrafayaleem/gdx-sqlite

This extension currently supports Android and Desktop platforms. Also, there is no support to open databases located in the assets folder of the Android app. However, this is a pending feature and will be added soon.

Follow the instructions in read me to setup your projects for database handling. Following is an example code:

package com.mrafayaleem.gdxsqlitetest;

import com.badlogic.gdx.Gdx;
import com.badlogic.gdx.sql.Database;
import com.badlogic.gdx.sql.DatabaseCursor;
import com.badlogic.gdx.sql.DatabaseFactory;
import com.badlogic.gdx.sql.SQLiteGdxException;

public class DatabaseTest {

    Database dbHandler;

    public static final String TABLE_COMMENTS = "comments";
    public static final String COLUMN_ID = "_id";
    public static final String COLUMN_COMMENT = "comment";

    private static final String DATABASE_NAME = "comments.db";
    private static final int DATABASE_VERSION = 1;

    // Database creation sql statement
    private static final String DATABASE_CREATE = "create table if not exists "
            + TABLE_COMMENTS + "(" + COLUMN_ID
            + " integer primary key autoincrement, " + COLUMN_COMMENT
            + " text not null);";

    public DatabaseTest() {
        Gdx.app.log("DatabaseTest", "creation started");
        dbHandler = DatabaseFactory.getNewDatabase(DATABASE_NAME,
                DATABASE_VERSION, DATABASE_CREATE, null);

        dbHandler.setupDatabase();
        try {
            dbHandler.openOrCreateDatabase();
            dbHandler.execSQL(DATABASE_CREATE);
        } catch (SQLiteGdxException e) {
            e.printStackTrace();
        }

        Gdx.app.log("DatabaseTest", "created successfully");

        try {
            dbHandler
                    .execSQL("INSERT INTO comments ('comment') VALUES ('This is a test comment')");
        } catch (SQLiteGdxException e) {
            e.printStackTrace();
        }

        DatabaseCursor cursor = null;

        try {
            cursor = dbHandler.rawQuery("SELECT * FROM comments");
        } catch (SQLiteGdxException e) {
            e.printStackTrace();
        }
        while (cursor.next()) {
            Gdx.app.log("FromDb", String.valueOf(cursor.getString(1)));
        }

        try {
            dbHandler.closeDatabase();
        } catch (SQLiteGdxException e) {
            e.printStackTrace();
        }
        dbHandler = null;
        Gdx.app.log("DatabaseTest", "dispose");
    }
}

Answer 2

http://marakana.com/techtv/android_bootcamp_screencast_series.html Class 4, Part 1: Android Bootcamp - statusData, for libgdx: http://code.google.com/p/libgdx-users/wiki/SQLite

EDIT: I should mention about two new courses about libgdx games at Udacity: https://github.com/udacity/ud405

https://github.com/udacity/ud406