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Thread: Problem developing app for Android

  1. #1
    Junior Member
    Join Date
    May 2012
    Thanked 0 Times in 0 Posts

    Default Problem developing app for Android

    Hi All,

    I am a not experienced developer. All I want to do is make a small app to track information of football on TV. I want to do it through a small DB however I've been struggling a lot with an error I've been trying to discover in the last two weeks but I have not been able.

    I have teh following code in the class I create the DB

    public class DBAdapter {
    public static final String KEY_ROWID = "_id";
    public static final String KEY_GDATE = "gdate";
    public static final String KEY_GTIME = "gtime";
    public static final String KEY_GGAME = "ggame";
    public static final String KEY_GCOMPETITION = "gcompetition";
    public static final String KEY_GCHANNEL = "gchannel";

    private static final String TAG = "DBAdapter";

    private static final String DATABASE_NAME = "FonTV";
    private static final String DATABASE_TABLE = "games";
    private static final int DATABASE_VERSION = 2;

    private static final String DATABASE_CREATE =
    "create table games (_id integer primary key autoincrement, "
    + "gdate text not null, gtime text not null, ggame text not null" +
    "gcompetition text not null, gchannel text not null);";

    private final Context context;

    private DatabaseHelper DBHelper;
    private SQLiteDatabase db;

    public DBAdapter(Context ctx)
    this.context = ctx;
    DBHelper = new DatabaseHelper(context);

    private static class DatabaseHelper extends SQLiteOpenHelper
    DatabaseHelper(Context context)
    super(context, DATABASE_NAME, null, DATABASE_VERSION);

    public void onCreate(SQLiteDatabase db)
    try {
    } catch (SQLException e) {

    public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion)
    Log.w(TAG, "Upgrading database from version " + oldVersion + " to "
    + newVersion + ", which will destroy all old data");
    db.execSQL("DROP TABLE IF EXISTS contacts");

    //---opens the database---
    public DBAdapter open() throws SQLException
    db = DBHelper.getWritableDatabase();
    return this;

    //---closes the database---
    public void close()

    //---insert a contact into the database---
    public long insertContact(String gdate, String gtime, String ggame, String gcompetition, String gchannel )
    ContentValues initialValues = new ContentValues();
    initialValues.put(KEY_GDATE, gdate);
    initialValues.put(KEY_GTIME, gtime);
    initialValues.put(KEY_GGAME, ggame);
    initialValues.put(KEY_GCOMPETITION, gcompetition);
    initialValues.put(KEY_GCHANNEL, gchannel);

    return db.insert(DATABASE_TABLE, null, initialValues);
    And the main class where I try to insert data has this:

    public class ResultsDBActivity extends Activity {
    /** Called when the activity is first created. */
    public void onCreate(Bundle savedInstanceState) {

    DBAdapter db = new DBAdapter(this);

    long id = db.insertContact("12/may", "08:00", "Leeds vs York", "JUME Cup", "ITV, BBC");
    id = db.insertContact("13/may", "09:00", "London vs Bath", "JUME Cup", "ITV, BBC2");

    However when I try to run it, the debugger shows and error that says:

    E/Database(330): android.database.sqlite.SQLiteException: no such table: games: , while compiling: INSERT INTO games(gchannel, ggame, gtime, gdate, gcompetition) VALUES(?, ?, ?, ?, ?);

    Iíve trying to change parameters and many things but I havenít found where the problem is. Can someone help me please?

  2. #2
    Join Date
    Feb 2011
    Thanked 4 Times in 4 Posts

    Default Re: Problem developing app for Android

    Have you tried debugging to see if the table is actually being created?

    All intelligent thoughts have already been thought;
    what is necessary is only to try to think them again.

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