Android Save And Get Image From Sqlite Database

Dears How I can Android Save Image And Get Image From Sqlite Database I'm Using Android Studio ?

Solution 1:

Might be too late. but useful for future readers..

import android.content.Context;
import android.database.Cursor;
import android.database.DatabaseUtils;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;
import android.database.sqlite.SQLiteStatement;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;


import java.util.HashMap;

 /**
  * Created by Noorul on 23-05-2016.
 */@SuppressWarnings("ALL")publicclassDBSplashextendsSQLiteOpenHelper {

publicstaticfinalStringDATABASE_NAME="SplashDB.db";
publicstaticfinalStringSPLASH_TABLE_NAME="splash_db";

private HashMap hp;

publicDBSplash(Context context) {
    super(context, DATABASE_NAME, null, 1);
}

@OverridepublicvoidonCreate(SQLiteDatabase db) {
    db.execSQL(
            "create table " + SPLASH_TABLE_NAME + "( name TEXT, image BLOB)"
    );
}

@OverridepublicvoidonUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
    // TODO Auto-generated method stub
    db.execSQL("DROP TABLE IF EXISTS contacts");
    onCreate(db);
}

publicbooleaninsertImage(String name, Bitmap img) {
    BitmapstoredBitmap=null;
    Stringsql="INSERT INTO " + SPLASH_TABLE_NAME + " (name,image) VALUES(?,?)";
    SQLiteDatabasedb=this.getWritableDatabase();
    SQLiteStatementinsertStmt= db.compileStatement(sql);

    byte[] imgByte = getBitmapAsByteArray(img);
    try {
        storedBitmap = getImage(name);
    } catch (Exception e) {
        AppLog.exception(e);
    }
    if (storedBitmap == null) {
        insertStmt.bindString(1, name);
        insertStmt.bindBlob(2, imgByte);
        insertStmt.executeInsert();
        db.close();
    }
    returntrue;
}


publicintnumberOfRows() {
    SQLiteDatabasedb=this.getReadableDatabase();
    intnumRows= (int) DatabaseUtils.queryNumEntries(db, SPLASH_TABLE_NAME);
    return numRows;
}


public Bitmap getImage(String name) {
    Stringqu="SELECT * FROM " + SPLASH_TABLE_NAME;
    Cursorcur=null;
    SQLiteDatabasedb=this.getReadableDatabase();

    try {
        cur = db.rawQuery(qu, newString[]{});
    } catch (Exception e) {
        AppLog.exception(e);
    }
    if (cur != null) {
        if (cur.moveToFirst()) {
            intindex= cur.getColumnIndexOrThrow("image");
            byte[] imgByte = cur.getBlob(index);
            cur.close();
            return BitmapFactory.decodeByteArray(imgByte, 0, imgByte.length);
        }
        if (cur != null && !cur.isClosed()) {
            cur.close();
        }
    }

    returnnull;
}
   publicbyte[] getBitmapAsByteArray(Bitmap bitmap) {
    ByteArrayOutputStreamoutputStream=newByteArrayOutputStream();
    bitmap.compress(Bitmap.CompressFormat.JPEG, 0, outputStream);
    return outputStream.toByteArray();
}
}

Use this code. But storing images in databases is not not best practices.change the image size if you need unblurred image. IMages are blob type with high memory . mobile is smaller device . so storing many images in sqlite db means, it will be ugly. so use @thuongle method

Solution 2:

You can check this tutorial for implementing Sqlite in Android. http://www.androidhive.info/2011/11/android-sqlite-database-tutorial/

Instead working with Contact for example, you can implement this way

publicclassImage{
    String imagePath; //it is your absolute image file path
}

And your DatabaseHandler can be implemented like below

publicclassDatabaseHandlerextendsSQLiteOpenHelper {

    // All Static variables// Database VersionprivatestaticfinalintDATABASE_VERSION=1;

    // Database NameprivatestaticfinalStringDATABASE_NAME="imagedb";

    // Contacts table nameprivatestaticfinalStringTABLE_IMAGE="images";

    // Contacts Table Columns namesprivatestaticfinalStringKEY_ID="id";
    privatestaticfinalStringKEY_IMAGE_PATH="name";

    publicDatabaseHandler(Context context) {
        super(context, DATABASE_NAME, null, DATABASE_VERSION);
    }

    // Creating Tables@OverridepublicvoidonCreate(SQLiteDatabase db) {
        StringsqlQuery="CREATE TABLE " + TABLE_IMAGE + "("
                + KEY_ID + " INTEGER PRIMARY KEY," + KEY_IMAGE_PATH + " TEXT)";
        db.execSQL(sqlQuery);
    }

    // Upgrading database@OverridepublicvoidonUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
        // Drop older table if existed
        db.execSQL("DROP TABLE IF EXISTS " + TABLE_IMAGE);

        // Create tables again
        onCreate(db);
    }

    // Adding new imagepublicvoidaddImage(Image image) {
        SQLiteDatabasedb=this.getWritableDatabase();

        ContentValuesvalues=newContentValues();
        values.put(KEY_IMAGE_PATH, image.imagePath); // Image path// Inserting Row
        db.insert(TABLE_IMAGE, null, values);
        db.close(); // Closing database connection
    }


    // Getting single imagepublic Image getImage(int id) {
        SQLiteDatabasedb=this.getReadableDatabase();

        Cursorcursor= db.query(TABLE_IMAGE, newString[] { KEY_ID,
                        KEY_IMAGE_PATH}, KEY_ID + "=?",
                newString[] { String.valueOf(id) }, null, null, null, null);
        if (cursor != null)
            cursor.moveToFirst();

        Imageimage=newImage(Integer.parseInt(cursor.getString(0)),
                cursor.getString(1));
        // return imagereturn image;
    }
}