sendImageFromFolder.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View view) {
                     Intent intent = new Intent();
                    intent.setType("image/*");
                    intent.putExtra(Intent.EXTRA_ALLOW_MULTIPLE, true);
                    intent.setAction(Intent.ACTION_GET_CONTENT);
                    startActivityForResult(Intent.createChooser(intent,"Select Picture"), 1);

                }
            });

     protected void onActivityResult(int requestCode, int resultCode, Intent data) {
            super.onActivityResult(requestCode, resultCode, data);

     if(requestCode==1) {
          Uri uri = data.getData();//how to convert this uri to real path .
    }

    }