Why SQLite to ImageView, BitmapFactory.decodeByteArray Returning Null?

Question

I'm developing a contacts app with a photo. I have Store and retrieve data from SQLite and it's working fine on my list view.

The problem is when I click a list item from it's supposed to show an image view and few other details. but the image is not showing on the Activity

List View on Main Activity

In the empty space here should be an image of the contacts

UserDBHelper.java

package com.example.arif.contacts;

import android.content.ContentValues;
import android.content.Context;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.drawable.BitmapDrawable;
import android.util.Log;

public class UserDBHelper extends SQLiteOpenHelper {

    String TAG = "DEBUG";

    private static final String DATABASE_NAME = "USERINFO.DB";
    private static final String TABLE_NAME = "ContactTable";

    private static final String TABLE_COL_NAME = "NAME";
    private static final String TABLE_COL_MOB = "MOB";
    private static final String TABLE_COL_EMAIL = "EMAIL";
    private static final String TABLE_COL_IMG = "EMAIL";
    private static final String TABLE_COL_ID = "ID";
    private static final int DATABASE_VERSION = 1;
    private static final String CREATE_QUERY =
            "CREATE TABLE "+TABLE_NAME+"("+TABLE_COL_ID+" INTEGER PRIMARY KEY AUTOINCREMENT, "+TABLE_COL_NAME+" TEXT, "+TABLE_COL_MOB+" TEXT, "+TABLE_COL_EMAIL+" TEXT, "+TABLE_COL_IMG+" blob)" ;


    public UserDBHelper(Context context)
    {
        super(context, DATABASE_NAME, null, DATABASE_VERSION);
        Log.e("DataBase", "Database created / Opened");
    }


    @Override
    public void onCreate(SQLiteDatabase db) {
        db.execSQL(CREATE_QUERY);
        Log.e("DataBase", "Table Created");
    }

    @Override
    public void onUpgrade(SQLiteDatabase db, int i, int i1) {

    }

    public boolean AddInfo(String Name, String Mob , String Email, byte[] img )
    {

        SQLiteDatabase db = this.getWritableDatabase();

        ContentValues CV = new ContentValues();
        CV.put("NAME", Name);
        CV.put("MOB", Mob);
        CV.put("EMAIL", Email );
        CV.put("NewImage", img);

        long result = db.insert(TABLE_NAME, null,CV);
        Log.e("DataBase", "Add Info Bug");
        if(result == -1)
        {
            return false;
        }
        else
        {
            return true;
        }

    }

    public Cursor getInformation()
    {
        Cursor data;
        SQLiteDatabase db = this.getWritableDatabase();
        String query = "Select * from " + TABLE_NAME;
        data = db.rawQuery(query,null);

        return data;

    }

    public String fetch_Name(int i)
    {
        String Str = "";

        SQLiteDatabase db = this.getReadableDatabase();
        String query = "Select "+TABLE_COL_NAME+" FROM " + TABLE_NAME + " WHERE " +TABLE_COL_ID+" = "+i;

        Cursor data = db.rawQuery(query,null);

        if(data.moveToFirst())
        {
            Str = data.getString(data.getColumnIndex(TABLE_COL_NAME+""));
        }


        return Str;
    }

    public String fetch_MOB(int i)
    {
        String Str = "";

        SQLiteDatabase db = this.getReadableDatabase();
        String query = "Select "+TABLE_COL_MOB+" FROM " + TABLE_NAME + " WHERE " +TABLE_COL_ID+" = "+i;

        Cursor data = db.rawQuery(query,null);

        if(data.moveToFirst())
        {
            Str = data.getString(data.getColumnIndex(TABLE_COL_MOB+""));
        }


        return Str;
    }

    public String fetch_Email(int i)
    {
        String Str = "";

        SQLiteDatabase db = this.getReadableDatabase();
        String query = "Select "+TABLE_COL_EMAIL+" FROM " + TABLE_NAME + " WHERE " +TABLE_COL_ID+" = "+i;

        Cursor data = db.rawQuery(query,null);

        if(data.moveToFirst())
        {
            Str = data.getString(data.getColumnIndex(TABLE_COL_EMAIL+""));
        }


        return Str;
    }


    public Bitmap fetch_Img(int i) {  /// THIS FUNCTION IS NOT WORKING



        byte[] ImgByte;
        SQLiteDatabase db = this.getWritableDatabase();

        String query = "Select "+TABLE_COL_IMG+" FROM " + TABLE_NAME + " WHERE " +TABLE_COL_ID+" = "+i;

        Cursor data = db.rawQuery(query,null);
        if(data.moveToFirst())
        {
            ImgByte =  data.getBlob(data.getColumnIndex(TABLE_COL_IMG+""));
            Bitmap bitMAP =  BitmapFactory.decodeByteArray(ImgByte, 0, ImgByte.length); // Here it's Always Returning Null
            if(bitMAP == null)
            {
                Log.e( TAG, "Bitmap is null :/ ");
            }
            return bitMAP;
        }
        return null;

    }

}

DetailsViewActivity

package com.example.arif.contacts;

import android.content.Intent;
import android.database.sqlite.SQLiteDatabase;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Toast;

public class DetailsOfContacts extends AppCompatActivity {

    int Pos;
    TextView Name_View, Mob_View, Email_View;
    ImageView Image_View;
    UserDBHelper userDBHelper;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_details_of_contacts);

        //---- ---- Intend Bundle ---- ----
        Intent intent = getIntent();
        Bundle bundle = intent.getExtras();
        Pos = -1;
        if(bundle != null)
        {
            Pos = bundle.getInt("Position");
        }
        Toast.makeText(getApplicationContext(), "Position "+ Pos,Toast.LENGTH_SHORT).show();


        // ---- ---- Find View ---- ----
        Name_View = (TextView) findViewById(R.id.DetName);
        Mob_View = (TextView) findViewById(R.id.DetMob);
        Email_View = (TextView) findViewById(R.id.DetEmail);
        Image_View = (ImageView) findViewById(R.id.DetImg);

       /// --- --- DataBase -----
        UserDBHelper userDBHelper = new UserDBHelper(getApplicationContext());

        Name_View.setText(userDBHelper.fetch_Name(Pos+1)); // Working Fine
        Mob_View.setText(userDBHelper.fetch_MOB(Pos+1));// Working Fine
        Email_View.setText(userDBHelper.fetch_Email(Pos+1));// Working Fine
        Image_View.setImageBitmap(userDBHelper.fetch_Img(Pos+1)); // it's Not showing The image in activity

    }


    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        getMenuInflater().inflate(R.menu.edit_menu, menu);
        return super.onCreateOptionsMenu(menu);
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {

        int id ;
        id = item.getItemId();
        if(id == R.id.EditButt)
        {
            Toast.makeText(getApplicationContext(),"Edit Button Clicked", Toast.LENGTH_SHORT).show();
            Intent I = new Intent(DetailsOfContacts.this, EditActivity.class);
            startActivity(I);
            return true;
        }

        return super.onOptionsItemSelected(item);
    }
}

09-18 09:35:56.866 26144-26144/com.example.arif.contacts E/DEBUG: Bitmap is null :/

Answer 1

Column name of image and email are same

private static final String TABLE_COL_EMAIL = "EMAIL";
private static final String TABLE_COL_IMG = "EMAIL";

Change column name of image.