GalleryActivity.kt

override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
    super.onActivityResult(requestCode, resultCode, data)
    if (requestCode == PICK_IMAGE_REQUEST && resultCode == Activity.RESULT_OK) {
        if(data == null || data.data == null){
            return
        }
        
        filePath = data.data
        try {
            val bitmap = MediaStore.Images.Media.getBitmap(contentResolver, filePath)
            uploadImage.setImageBitmap(bitmap)
        } catch (e: IOException) {
            e.printStackTrace()
        }
    }
}