Android : How to detect the image orientation (portrait or landscape) picked from gallery while setting on an imageview?

Use ExifInterface for rotate image. Use this method for get correct value to be rotate captured image from camera.

public int getCameraPhotoOrientation(Context context, Uri imageUri, String imagePath){
    int rotate = 0;
    try {
        context.getContentResolver().notifyChange(imageUri, null);
        File imageFile = new File(imagePath);

        ExifInterface exif = new ExifInterface(imageFile.getAbsolutePath());
        int orientation = exif.getAttributeInt(ExifInterface.TAG_ORIENTATION, ExifInterface.ORIENTATION_NORMAL);

        switch (orientation) {
        case ExifInterface.ORIENTATION_ROTATE_270:
            rotate = 270;
            break;
        case ExifInterface.ORIENTATION_ROTATE_180:
            rotate = 180;
            break;
        case ExifInterface.ORIENTATION_ROTATE_90:
            rotate = 90;
            break;
        }

        Log.i("RotateImage", "Exif orientation: " + orientation);
        Log.i("RotateImage", "Rotate value: " + rotate);
    } catch (Exception e) {
        e.printStackTrace();
    }
    return rotate;
}

And put this code in Activity result method and get value to rotate image…

String 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]);
filePath = cursor.getString(columnIndex);
cursor.close();

int rotateImage = getCameraPhotoOrientation(MyActivity.this, selectedImage, filePath);

Hope this helps..

This is also working for me:

String[] orientationColumn = {MediaStore.Images.Media.ORIENTATION};
Cursor cur = getContentResolver().query(imageUri, orientationColumn, null, null, null);
int orientation = -1;
if (cur != null && cur.moveToFirst()) {
    orientation = cur.getInt(cur.getColumnIndex(orientationColumn[0]));
}
Matrix matrix = new Matrix();
matrix.postRotate(orientation);

                      if(bm.getWidth() > bm.getHeight())
                        {
                            Bitmap bMapRotate=null;
                            Matrix mat=new Matrix();
                            mat.postRotate(90);
                        bMapRotate = Bitmap.createBitmap(bm, 0, 0,bm.getWidth(),bm.getHeight(), mat, true);
                        bm.recycle();
                        bm=null;
                        imageDisplayView.setImageBitmap(bMapRotate);
                        }else
                        imageDisplayView.setImageBitmap(bm);

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