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Blob Row too big too fit in Android

How can I limit the size of the image when saving to SQLite? I have this error when I retrieve which I think didn't get the big size of the blob Image from SQLite. However, I tried putting limit 500 in the query like this SELECT id,cash_card,hh_number,cc_image FROM CgList limit 500, but the result is the same, it crashes my application.
In short, Is there any way to reduce the file size of the image when inserting to the SQLite database?
Error
android.database.sqlite.SQLiteBlobTooBigException: Row too big to fit
into CursorWindow requiredPos=0, totalRows=4
Insert data and blob
public void insertData(String cash_card, String hh_number,String series_number ,byte[] cc_image,byte[] id_image){
SQLiteDatabase database = getWritableDatabase();
String sql = "INSERT INTO CgList VALUES (NULL,?, ?, ?, ?, ?)";
SQLiteStatement statement = database.compileStatement(sql);
statement.clearBindings();
statement.bindString(1, cash_card);
statement.bindString(2, hh_number);
statement.bindString(3, series_number);
statement.bindBlob(4, cc_image);
statement.bindBlob(5, id_image);
statement.executeInsert();
}
Getting data
Cursor cursor = ScannedDetails.sqLiteHelper.getData("SELECT id,cash_card,hh_number,cc_image FROM CgList");
list.clear();
while (cursor.moveToNext()) { // the error is here
int id = cursor.getInt(0);
String name = cursor.getString(1);
String price = cursor.getString(2);
byte[] image = cursor.getBlob(3);
list.add(new Inventory(name, price, image, id));
}
adapter.notifyDataSetChanged();
When I click button to save to SQLite
btnSubmit.setOnClickListener( new View.OnClickListener() {
#Override
public void onClick(View v) {
sqLiteHelper.insertData(
edtCashCard.getText().toString().trim(),
edtHhnumber.getText().toString().trim(),
edtSeriesno.getText().toString().trim(),
imageViewToByte(mPreviewCashcard),
imageViewToByte(mPreview4PsId)
);
}
});
Converting Image To Byte
public static byte[] imageViewToByte(ImageView image) {
Bitmap bitmap = ((BitmapDrawable)image.getDrawable()).getBitmap();
ByteArrayOutputStream stream = new ByteArrayOutputStream();
bitmap.compress(Bitmap.CompressFormat.PNG, 100, stream);
byte[] byteArray = stream.toByteArray();
return byteArray;
}
Updated
I think this is the problem when capturing an image it provide bigger size, I need this because after I capture the image I want to crop the image for some purpose but I want to display the actual capture not the cropped image to another activity
private void pickCamera() {
ContentValues values = new ContentValues();
values.put(MediaStore.Images.Media.TITLE, "NewPic");
values.put(MediaStore.Images.Media.DESCRIPTION, "Image to Text");
image_uri = getContentResolver().insert(MediaStore.Images.Media.EXTERNAL_CONTENT_URI,values);
Intent cameraIntent = new Intent (MediaStore.ACTION_IMAGE_CAPTURE);
cameraIntent.putExtra(MediaStore.EXTRA_OUTPUT, image_uri);
startActivityForResult(cameraIntent, IMAGE_PICK_CAMERA_CODE);
}
OnActivityResult
#Override
protected void onActivityResult(int requestCode, int resultCode, #Nullable Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (resultCode == RESULT_OK){
if (requestCode == IMAGE_PICK_GALLER_CODE){
CropImage.activity(data.getData()).setGuidelines(CropImageView.Guidelines.ON).start(this);
}
if (requestCode == IMAGE_PICK_CAMERA_CODE){
CropImage.activity(image_uri).setGuidelines(CropImageView.Guidelines.ON).start(this);
}
}
if (requestCode == CropImage.CROP_IMAGE_ACTIVITY_REQUEST_CODE){
CropImage.ActivityResult result = CropImage.getActivityResult(data);
if(resultCode ==RESULT_OK){
Uri resultUri = result.getUri();
resultUri.getPath();
mPreviewIv.setImageURI(resultUri);
BitmapDrawable bitmapDrawable = (BitmapDrawable)mPreviewIv.getDrawable();
Bitmap bitmap = bitmapDrawable.getBitmap();
TextRecognizer recognizer = new TextRecognizer.Builder(getApplicationContext()).build();
if(!recognizer.isOperational()){
Toast.makeText(this,"Error",Toast.LENGTH_SHORT).show();
}
else{
Frame frame = new Frame.Builder().setBitmap(bitmap).build();
SparseArray<TextBlock> items = recognizer.detect(frame);
StringBuilder sb = new StringBuilder();
for (int i = 0; i<items.size(); i++){
TextBlock myItem = items.valueAt(i);
sb.append(myItem.getValue());
sb.append("\n");
}
Intent i = new Intent(MainActivity.this, ScannedDetails.class);
//camera
i.putExtra("CashCardImage",image_uri.toString()); //This data pass to another activity
startActivity(i);
}
}
}
}
Retrieve to another Activity
Bundle extras = getIntent().getExtras();
String resultUri = extras.getString("CashCardImage");
Uri myUri = Uri.parse(resultUri);
mPreviewCashCard.setImageURI(myUri);
The other one I tried when saving to SQLITE the size is not big it's just KIB, I think the problem is on the 1st PickCamera but those code need for cropping an Image
private void pickCamera() {
Intent intent = new Intent(ScannedDetails.this, InventoryList.class);
startActivity(intent);
}

However, I tried putting limit 500 in the query like this SELECT id,cash_card,hh_number,cc_image FROM CgList limit 500
LIMIT limits the number of rows returned, is does not limit the size of a row.
The issue is that a single row exceeds the capacity of the cache/buffer (CursorWindow) that a Cursor uses. This restriction does not apply when inserting the said row/rows.
The typical solution is to not store images but to instead store a reference, such as a file path, from which the image (or other large item) can then be retrieved.
Here's an example that stores images less than a set size (100k in the example) as a blob and those larger as files in data/data/myimages, which could be another solution.
It is possible to break a large image into chunks of data and store/retrieve that. Here's an example of doing that.

Don't store an image directly in your database. Instead, save the image to a file or to a webserver. Then in the database store the file path or URL to the image.

App crash when selecting more than 10 images

I am coding an android app using android studio - java , I am facing a problem when picking more than 10 images from gallery and inserting them into Sqlitedatabase table , when inserting the 10th image it takes much longer time than the last 9 images , and when selecting all the images (10) from the table the app crashes with errors
E/SQLiteCursor: onMove() return false. RequiredPos: 9 WindowStartPos: 9 WindowRowCount: 0(original count of query: 10)
Caused by: android.database.CursorIndexOutOfBoundsException: Index -1 requested, with a size of 10
Code
Picking and inserting images code
#Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (requestCode== 1 && resultCode == RESULT_OK) {
try {
ClipData clipData = data.getClipData();
if (clipData == null)
return;
for (int i = 0; i < clipData.getItemCount(); i++) {
Bitmap bitmap = MediaStore.Images.Media.getBitmap(getContentResolver(), clipData.getItemAt(i).getUri());
byte[] myImg = getBitmapAsByteArray(bitmap);
DatabaseHelper databaseHelper = new DatabaseHelper(this);
SQLiteDatabase db = databaseHelper.getWritableDatabase();
ContentValues contentValues = new ContentValues();
contentValues.put("myImage",myImg);
db.insert("myTable",null,contentValues);
}
} catch (IOException e) {
e.printStackTrace();
}
}
}
getBitmapAsByteArray()
private static byte[] getBitmapAsByteArray(Bitmap bitmap) {
ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
bitmap.compress(Bitmap.CompressFormat.PNG, 0, outputStream);
return outputStream.toByteArray();
}
Selecting images from database
public void showImages(View view) {
DatabaseHelper databaseHelper = new DatabaseHelper(this);
SQLiteDatabase db = databaseHelper.getReadableDatabase();
Cursor cursor = db.rawQuery("select * from myTable",null);
cursor.moveToFirst();
Toast.makeText(this, ""+cursor.getCount(), Toast.LENGTH_SHORT).show();
ArrayList<Bitmap> bitmaps = new ArrayList<>();
if (cursor.getCount()>0)
while (!cursor.isAfterLast())
{
bitmaps.add(BitmapFactory.decodeByteArray(cursor.getBlob(0), 0, cursor.getBlob(0).length));
cursor.moveToNext();
}
ViewPagerAdapter adapter = new ViewPagerAdapter(this,bitmaps);
viewPager.setAdapter(adapter);
viewPager.setCurrentItem(0);
cursor.close();
}
any suggestions ?

Not sure about the code, but i would not store image directly in Database. Image can be really huge, it might take some time to write and read multiple images.
Instead, like what backend developers do, i would store image as File on Filesystem (app private directory). They will be deleted when app is deleted. Save the images as Files and store their path or name into DB. So whenever you need image, just do:
List<String> getImageNamesFromDb()
List<File> getImageFiles(List<String>)
processYourImageFiles(List<File>)

It is an index out of bound exception.
Your loop is going in negative , you are accessing a row at index -1 which does not exist.
Try errors in your loop.
Please give your code of java file.
It might help more for finding more errors.

Android Studio (java): Image from array to PDF using iText

Currently the user selects their images within a fragment and it converts them into an array with a string path name. I want to put that image on the PDF, but there is a formatting issue. I am trying to use the code below to fix that. Currently everything checks through until the cursor.MoveToFirst() returns null.
for (int i = 0; i <= imgArray.size(); i++) {
Uri selectedImageUri = Uri.fromFile(new File(imgArray.get(i)));
String[] filePathColumn = {MediaStore.Images.Media.DATA};
Cursor cursor = getContentResolver().query(selectedImageUri, filePathColumn, null, null, null);
cursor.moveToFirst(); //ERROR: NULL
int columnIndex = cursor.getColumnIndex(filePathColumn[0]);
String picturePath = cursor.getString(columnIndex);
cursor.close();
Bitmap bmp = BitmapFactory.decodeFile(picturePath);
ByteArrayOutputStream stream = new ByteArrayOutputStream();
bmp.compress(Bitmap.CompressFormat.PNG, 100, stream);
Image image = Image.getInstance(stream.toByteArray());
doc.add(image);
}

SOLUTION: I figured this out. This seems to work for me! Use bitmap configurations.
for (int i = 0; i < imgArray.size(); i++) {
Bitmap bmp = BitmapFactory.decodeFile(imgArray.get(i));
ByteArrayOutputStream stream = new ByteArrayOutputStream();
bmp.compress(Bitmap.CompressFormat.PNG, 100, stream);
Image image = Image.getInstance(stream.toByteArray());
doc.add(image);
}

Image uploading from android to PHP server using retrofit

I am uploading image to server using retrofit. I am encoding image to bitmap and then convert bitmap to string and passing string to PHP. On PHP side I decode image again and then save to server folder.
It works perfectly if I compress image quality to 30 but app crashes and shows null pointer if I set image quality to 100.
Here is my Code:
ResultActivity:
if (requestCode == 1 && null != data) {
Uri selectedImage = data.getData();
String[] filePathColumn = {MediaStore.Images.Media.DATA};
Cursor cursor = getContentResolver().query(selectedImage,
filePathColumn, null, null, null);
cursor.moveToFirst();
int columnIndex = cursor.getColumnIndex(filePathColumn[0]);
String picturePath = cursor.getString(columnIndex);
// photo = BitmapFactory.decodeFile(picturePath);
profile_photo =
ImageUtils.getInstant().getCompressedBitmap(picturePath);
Uri tempUri = getImageUri(this, profile_photo);
cursor.close();
profile_image.setImageResource(android.R.color.transparent);
Picasso.get()
.load(tempUri)
.resize(150, 150)
.into(profile_image);
profile_image.setScaleType(ImageView.ScaleType.FIT_XY);
profile_image.setPadding(5, 5, 5, 5);
//Bitmap profile_photo = ((BitmapDrawable)
profile_image.getDrawable()).getBitmap();
upload_profileimage();
b.dismiss();
}
Bitmap to string:
public String BitmapTOString(Bitmap bitmap) {
Bitmap bm = bitmap;
ByteArrayOutputStream stream = new ByteArrayOutputStream();
bm.compress(Bitmap.CompressFormat.JPEG, 100, stream);
byte[] byteFormat = stream.toByteArray();
String imgString = Base64.encodeToString(byteFormat, Base64.DEFAULT);
return imgString;
}
Retrofit API call:
call = user_profileimge_interface.profileImage_uplaod(BitmapTOString(profile_photo), user_id);
PHP Code:
$data = $baseurl.'user_profile_pictures/'.$user_id.".JPEG";
file_put_contents($data, base64_decode($profile_picture));
echo json_encode(Array('message' => "image inserted"));
API interface:
#POST("update_profilepic.php")
Call<Profile_Image_updateJson> profileImage_uplaod(#Query("profile_picture") String profileImage,
#Query("user_id") String user_id);

I'd suggest sending bitmap as binary data rather than converting to/from string. For example:
#POST
Call<Profile_Image_updateJson> profileImage_uplaod(#Query("user_id") String user_id, #Body RequestBody body);
and then something like:
requestBody = RequestBody.create(MediaType.parse("image/jpeg"), imageBytes)
call = user_profileimge_interface.profileImage_uplaod(user_id, requestBody);

Try to Perform BitmaptoString() operation in a separate thread, away from the Main UI Thread.
As processing bitmap is too costly if you perform it in the Main UI Thread, the App might crash. Also, you can use Asynctask or Any Background Process to perform costly functions and avoid any costly operations in Main Thread.

Convert Byte to Bitmap

I have to convert a byte to Bitmap and i set it to imageview
i do have methode that convert Bitmap in ImageView into Byte and i insert it later,
public static byte[] ConvertDrawableToByteArray(Drawable drawableResource) {
Bitmap imageBitmap = ((BitmapDrawable) drawableResource).getBitmap();
ByteArrayOutputStream imageByteStream = new ByteArrayOutputStream();
imageBitmap.compress(Bitmap.CompressFormat.JPEG, 100, imageByteStream);
byte[] imageByteData = imageByteStream.toByteArray();
return imageByteData;
}
and when i want to retrieve image from database and show it in an ImageView i do
//--
byte[] image_b = c.getBlob(4);
Bitmap b = BitmapFactory.decodeByteArray(image_b, 0, image_b.length);
img.setImageBitmap(b);
but it return nothing
what is wrong, please help
Thanks a lot

I guess it's because the cursor didn't return anything. Maybe the Blob is too big to be queried in one time because android cursor limit is 1 mb per query please check again your stacktrace/logcat and if the blob size is the problem you can try to split the byte to smaller size and store it in your database

You can play around with the following and let us know if it works:
String[] filePathColumn = { MediaStore.Images.Media.DATA };
Cursor cursor = resolver.query(imageUri, filePathColumn, null, null, null);
cursor.moveToFirst();
int columnIndex = cursor.getColumnIndex(filePathColumn[0]);
String picturePath = cursor.getString(columnIndex);
cursor.close();
return BitmapFactory.decodeFile(picturePath);

I dont understand where is the problèlme i do likee this :String t = image_b.toString(); System.out.println("what it give me" +t); and i find in the logcat this line : 03-19 17:01:28.167: I/System.out(1019): what it give me[B#41f1f5c0
is that mean it return something but dont showin or is the byte [B#41f1f5c0 is not correct