How to store image in SQLite database

Question

In my application I am uploading an image from gallery and I want to store this image in the SQLite database. How do I store a bitmap in the database? I am converting bitmap

Answer 1

Don't forget to write user permission code in Manifest file

    protected void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.activity_main);
            CameraActivity = this;

            imageView = (ImageView) findViewById(R.id.image_view);
            database = new ImageDatabase(this);

            //Set OnClick Listener to button view
            captureImage = (Button) findViewById(R.id.capture_image);
            captureImage.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v) {


                    Intent cameraIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
                    startActivityForResult(cameraIntent, CAMERA_REQUEST);
                }
            });


        }

        @Override
        public void onActivityResult(int requestCode, int resultCode, @Nullable Intent data) {
            if (requestCode == CAMERA_REQUEST && resultCode == Activity.RESULT_OK) {

                theImage = (Bitmap) data.getExtras().get("data");

                ByteArrayOutputStream stream = new ByteArrayOutputStream();
                theImage.compress(Bitmap.CompressFormat.PNG, 100, stream);
                byte[] byteArray = stream.toByteArray();

                SQLiteDatabase db = database.getWritableDatabase();
                ContentValues values = new ContentValues();
                values.put(ImageDatabase.KEY_IMG_URL, byteArray);
                db.insert(ImageDatabase.TABLE_NAME, null, values);
                db.close();
                Bitmap b = getTheImage();
                imageView.setImageBitmap(b);

            }
        }

       public Bitmap getTheImage(){

            SQLiteDatabase db = database.getReadableDatabase();
            Cursor cursor = (Cursor) db.rawQuery(" SELECT * FROM "+ImageDatabase.TABLE_NAME,null,null);
            if (cursor.moveToFirst()){
                byte[] imgByte =  cursor.getBlob(cursor.getColumnIndex(ImageDatabase.KEY_IMG_URL));
                cursor.close();
                return BitmapFactory.decodeByteArray(imgByte,0,imgByte.length);
            }
           if (cursor != null && !cursor.isClosed()) {
               cursor.close();
           }

           return null;
        }
    }

DATABASE CLASS

class ImageDatabase extends SQLiteOpenHelper {
    public Context context;
    public static final String DATABASE_NAME = "dataManager";

    public static final int DATABASE_VERSION = 1;
    public static final String TABLE_NAME = "data";
    public static final String KEY_ID = "id";
    public static final String KEY_IMG_URL = "ImgFavourite";

    public ImageDatabase(Context context) {
        super(context, DATABASE_NAME, null, DATABASE_VERSION);
        this.context = context;
        //Toast.makeText(context, "Constructor called", Toast.LENGTH_LONG).show();
    }

    public static final String CREATE_TABLE = "CREATE TABLE " + TABLE_NAME + "(" + KEY_ID +
            " INTEGER PRIMARY KEY AUTOINCREMENT," + KEY_IMG_URL + " BLOB " + ")";
    public static final String DROP_TABLE = "DROP TABLE IF EXISTS " + TABLE_NAME + "";

    @Override
    public void onCreate(SQLiteDatabase db) {
        db.execSQL(CREATE_TABLE);
    }

    @Override
    public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
        db.execSQL(DROP_TABLE);
        onCreate(db);
    }

    public void deleteEntry(long row) {
        SQLiteDatabase sqLiteDatabase = getWritableDatabase();
        sqLiteDatabase.delete(TABLE_NAME, KEY_ID + "=" + row, null);
    }

}