Fix Image Upload bug

app/src/main/java/in/ac/iitb/gymkhana/iitbapp/fragment/AddEventFragment.java

@@ -6,13 +6,17 @@ import android.app.ProgressDialog;
 import android.app.TimePickerDialog;
 import android.content.Intent;
 import android.content.pm.PackageManager;
+import android.database.Cursor;
 import android.graphics.Bitmap;
+import android.graphics.BitmapFactory;
 import android.net.Uri;
 import android.os.Bundle;
+import android.provider.MediaStore;
 import android.support.v4.app.ActivityCompat;
 import android.support.v4.content.ContextCompat;
 import android.support.v4.widget.ImageViewCompat;
 import android.util.Base64;
+import android.util.Log;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
@@ -98,6 +102,17 @@ public class AddEventFragment extends BaseFragment {
         // Required empty public constructor
     }
 
+    public static String convertImageToString(Bitmap imageBitmap) {
+        ByteArrayOutputStream stream = new ByteArrayOutputStream();
+        if (imageBitmap != null) {
+            imageBitmap.compress(Bitmap.CompressFormat.JPEG, 60, stream);
+            byte[] byteArray = stream.toByteArray();
+            return Base64.encodeToString(byteArray, Base64.DEFAULT);
+        } else {
+            return null;
+        }
+    }
+
     @Override
     public View onCreateView(LayoutInflater inflater, ViewGroup container,
                              Bundle savedInstanceState) {
@@ -288,8 +303,52 @@ public class AddEventFragment extends BaseFragment {
         super.onActivityResult(requestCode, resultCode, data);
         if (requestCode == RESULT_LOAD_IMAGE && resultCode == RESULT_OK && null != data) {
             Uri selectedImage = data.getData();
+            String[] filePathColumn = {MediaStore.Images.Media.DATA};
+            Cursor cursor = getActivity().getContentResolver().query(selectedImage, filePathColumn, null, null, null);
+            cursor.moveToFirst();
+            int columnIndex = cursor.getColumnIndex(filePathColumn[0]);
+            String picturePath = cursor.getString(columnIndex);
+            cursor.close();
             ImageViewCompat.setImageTintList(eventPictureImageView, null);
             Picasso.with(getContext()).load(selectedImage).into(eventPictureImageView);
+            base64Image = convertImageToString(getScaledBitmap(picturePath, 800, 800));
+            Log.d(TAG, "onActivityResult: " + base64Image);
+        }
+    }
+
+    private Bitmap getScaledBitmap(String picturePath, int width, int height) {
+        BitmapFactory.Options sizeOptions = new BitmapFactory.Options();
+        sizeOptions.inJustDecodeBounds = true;
+        BitmapFactory.decodeFile(picturePath, sizeOptions);
+
+        int inSampleSize = calculateInSampleSize(sizeOptions, width, height);
+
+        sizeOptions.inJustDecodeBounds = false;
+        sizeOptions.inSampleSize = inSampleSize;
+
+        return BitmapFactory.decodeFile(picturePath, sizeOptions);
+    }
+
+    private int calculateInSampleSize(BitmapFactory.Options options, int reqWidth, int reqHeight) {
+        // Raw height and width of image
+        final int height = options.outHeight;
+        final int width = options.outWidth;
+        int inSampleSize = 1;
+
+        if (height > reqHeight || width > reqWidth) {
+
+            // Calculate ratios of height and width to requested height and
+            // width
+            final int heightRatio = Math.round((float) height / (float) reqHeight);
+            final int widthRatio = Math.round((float) width / (float) reqWidth);
+
+            // Choose the smallest ratio as inSampleSize value, this will
+            // guarantee
+            // a final image with both dimensions larger than or equal to the
+            // requested height and width.
+            inSampleSize = heightRatio < widthRatio ? heightRatio : widthRatio;
         }
+
+        return inSampleSize;
     }
 }