alexjlockwood

/**
 * create custom DatabaseHelper class that extends SQLiteOpenHelper
 */
public class DatabaseHelper extends SQLiteOpenHelper { 

    private static DatabaseHelper mInstance = null;

    private static final String DATABASE_NAME = "databaseName";
    private static final String DATABASE_TABLE = "tableName";
    private static final int DATABASE_VERSION = 1;

alexjlockwood

public class MainApplication extends Application {

    /**
     * see NotePad tutorial for an example implementation of DataDbAdapter
     */
    private static DataDbAdapter mDbHelper;
        
    /**
     * Called when the application is starting, before any other 
     * application objects have been created. Implementations 

alexjlockwood

public class MyFragment {
 
    /**
     * Make the default constructor private to prevent direct 
     * instantiation. Now all instances of this class must be 
     * instantiated with a call to newInstance().
     */
    private MyFragment() { }

    /**

alexjlockwood

public static class Singleton {

    private static final Singleton instance = null;
    
    /** 
     * Make the class private to prevent direct instantiation.
     * this forces clients to call newInstance(), which will
     * ensure the class' Singleton property.
     */
    private Singleton() { }

alexjlockwood

public class SampleActivity extends Activity {

    /**
     * A string constant to use in calls to the "log" methods. Its
     * value is often given by the name of the class, as this will 
     * allow you to easily determine where log methods are coming
     * from when you analyze your logcat output.
     */
    private static final String TAG = "SampleActivity";

alexjlockwood

public class CompatibilityUtil {
    
    /**
     * Get the current Android API level.
     */
    public static int getSdkVersion() {
        return Build.VERSION.SDK_INT;
    }

    /**

alexjlockwood

public abstract class AlbumStorageDirFactory {

    /**
     * Returns a File object that points to the folder that will store 
     * the album's pictures. 
     */
    public abstract File getAlbumStorageDir(String albumName);

    /**
     * A static factory method that returns a new AlbumStorageDirFactory 

alexjlockwood

public class BaseAlbumDirFactory extends AlbumStorageDirFactory {

    /**
     * For pre-Froyo devices, we must provide the name of the photo directory 
     * ourselves. We choose "/dcim/" as it is the widely considered to be the 
     * standard storage location for digital camera files.
     */
    private static final String CAMERA_DIR = "/dcim/";

    @Override

alexjlockwood

public class FroyoAlbumDirFactory extends AlbumStorageDirFactory {

    @Override
    public File getAlbumStorageDir(String albumName) {
        return new File(
            Environment.getExternalStoragePublicDirectory(
                Environment.DIRECTORY_PICTURES
            ), 
            albumName
        );

alexjlockwood

public class SampleActivity extends Activity {

    private AlbumStorageDirFactory mAlbumFactory;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        /* Implementation not shown */