In my project, I am capturing image from the camera. I am taking the full-size image from the app (instead of taking thumbnail). Captured image is of very big size which is 7 to 18 mb. When I have taken image from my default camera app, the size was roughly 2.5 mb only. As well as it’s taking lot of time(6-10 seconds) to load and save to the folder. This happening only when I am using the android device, on emulator it’s working good. This is my code:

package com.stegano.strenggeheim.fragment;  import android.content.Context; import android.content.DialogInterface; import android.content.Intent; import android.database.Cursor; import android.graphics.Bitmap; import android.graphics.BitmapFactory; import android.media.MediaScannerConnection; import android.net.Uri; import android.os.Bundle; import android.os.Environment; import android.provider.MediaStore; import android.support.v4.app.Fragment; import android.support.v4.content.FileProvider; import android.support.v7.app.AlertDialog; import android.util.Log; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.widget.ImageView; import android.widget.TextView; import android.widget.Toast;  import com.stegano.strenggeheim.BuildConfig; import com.stegano.strenggeheim.R;  import java.io.ByteArrayOutputStream; import java.io.File; import java.io.FileOutputStream; import java.io.IOException; import java.util.UUID;   public class FragmentEncode extends Fragment {     private static final String MESSAGE_IMAGE_SAVED = "Image Saved!";;     private static final String MESSAGE_FAILED = "Failed!";     private static final String IMAGE_DIRECTORY = "/StrengGeheim";     private static final int GALLERY = 0, CAMERA = 1;     private File capturedImage;     TextView imageTextMessage;     ImageView loadImage;      public FragmentEncode() {     }      @Override     public void onCreate(Bundle savedInstanceState) {         super.onCreate(savedInstanceState);         setRetainInstance(true);     }      private void galleryIntent() {         Intent galleryIntent = new Intent(Intent.ACTION_PICK,                 MediaStore.Images.Media.EXTERNAL_CONTENT_URI);         startActivityForResult(galleryIntent, GALLERY);     }      private void cameraIntent() {         Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);         Uri fileUri = getOutputMediaFileUri();         intent.putExtra(MediaStore.EXTRA_OUTPUT, fileUri);         startActivityForResult(intent, CAMERA);     }      private Uri getOutputMediaFileUri() {         try {             capturedImage = getOutputMediaFile();             return FileProvider.getUriForFile(getActivity(), BuildConfig.APPLICATION_ID + ".provider", capturedImage);         }         catch (IOException ex){             ex.printStackTrace();             Toast.makeText(getContext(), MESSAGE_FAILED, Toast.LENGTH_SHORT).show();         }         return null;     }      @Override     public View onCreateView(LayoutInflater inflater, ViewGroup container,                              Bundle savedInstanceState) {         View view = inflater.inflate(R.layout.fragment_encode, container, false);          imageTextMessage = view.findViewById(R.id.imageTextMessage);         loadImage =  view.findViewById(R.id.loadImage);          loadImage.setOnClickListener(new View.OnClickListener() {             @Override             public void onClick(View v) {                 showPictureDialog();             }         });         return view;     }      private void showPictureDialog(){         AlertDialog.Builder pictureDialog = new AlertDialog.Builder(getContext());         pictureDialog.setTitle("Select Action");         String[] pictureDialogItems = {                 "Select photo from gallery",                 "Capture photo from camera",                 "Cancel"         };         pictureDialog.setItems(pictureDialogItems,                 new DialogInterface.OnClickListener() {                     @Override                     public void onClick(DialogInterface dialog, int which) {                         switch (which) {                             case 0:                                 galleryIntent();                                 break;                             case 1:                                 cameraIntent();                                 break;                             case 2:                                 dialog.dismiss();                                 break;                         }                     }                 });         pictureDialog.show();     }      @Override     public void onActivityResult(int requestCode, int resultCode, Intent data) {         super.onActivityResult(requestCode, resultCode, data);         if (resultCode == getActivity().RESULT_CANCELED) {             return;         }         try {             if (requestCode == GALLERY && data != null) {                     Bitmap bitmap = getBitmapFromData(data, getContext());                     File mediaFile = getOutputMediaFile();                     String path = saveImage(bitmap, mediaFile);                     Log.println(Log.INFO, "Message", path);                     Toast.makeText(getContext(), MESSAGE_IMAGE_SAVED, Toast.LENGTH_SHORT).show();                     loadImage.setImageBitmap(bitmap);                     imageTextMessage.setVisibility(View.INVISIBLE);              } else if (requestCode == CAMERA) {                     final Bitmap bitmap = BitmapFactory.decodeFile(capturedImage.getAbsolutePath());                     loadImage.setImageBitmap(bitmap);                      saveImage(bitmap, capturedImage);                     Toast.makeText(getContext(), MESSAGE_IMAGE_SAVED, Toast.LENGTH_SHORT).show();                     imageTextMessage.setVisibility(View.INVISIBLE);             }         } catch (Exception ex) {             ex.printStackTrace();             Toast.makeText(getContext(), MESSAGE_FAILED, Toast.LENGTH_SHORT).show();         }     }      private Bitmap getBitmapFromData(Intent intent, Context context){         Uri selectedImage = intent.getData();         String[] filePathColumn = { MediaStore.Images.Media.DATA };         Cursor cursor = context.getContentResolver()                 .query(selectedImage,filePathColumn, null, null, null);         cursor.moveToFirst();         int columnIndex = cursor.getColumnIndex(filePathColumn[0]);         String picturePath = cursor.getString(columnIndex);         cursor.close();         return BitmapFactory.decodeFile(picturePath);     }      private String saveImage(Bitmap bmpImage, File mediaFile) {         ByteArrayOutputStream bytes = new ByteArrayOutputStream();         bmpImage.compress(Bitmap.CompressFormat.PNG, 50, bytes);         try {             FileOutputStream fo = new FileOutputStream(mediaFile);             fo.write(bytes.toByteArray());             MediaScannerConnection.scanFile(getContext(),                     new String[]{mediaFile.getPath()},                     new String[]{"image/png"}, null);             fo.close();              return mediaFile.getAbsolutePath();         } catch (IOException ex) {             ex.printStackTrace();         }         return "";     }      private File getOutputMediaFile() throws IOException {         File encodeImageDirectory =                 new File(Environment.getExternalStorageDirectory() + IMAGE_DIRECTORY);          if (!encodeImageDirectory.exists()) {             encodeImageDirectory.mkdirs();         }         String uniqueId = UUID.randomUUID().toString();         File mediaFile = new File(encodeImageDirectory, uniqueId + ".png");         mediaFile.createNewFile();         return mediaFile;     } }