Android: Pick photo from gallery + read by uri without extra permissions

PhotoPick.kt

fun launch() {
  val intent = Intent(Intent.ACTION_OPEN_DOCUMENT)
  intent.addCategory(Intent.CATEGORY_OPENABLE)
  intent.type = "image/*"
  startActivityForResult(intent, 2)
}

//TODO use registerForActivityResult() as modern approach

override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
    super.onActivityResult(requestCode, resultCode, data)
    if (requestCode === 2 && resultCode === Activity.RESULT_OK) {
        if (data != null) {
            val imageUri: Uri? = data.getData()
            imageUri?.let {
                val stream = requireContext().getContentResolver().openInputStream(it)
                val b = BitmapFactory.decodeStream(stream, null, null)
                Timber.i("test_ bitmap: ${b?.width} / ${b?.height}")
                binding.imageView.setImageBitmap(b)

              //binding.imageView.setImageURI(it)
            }
        }
    }
}

https://developer.android.com/training/data-storage/shared/documents-files#bitmap

Get extension:

val mime = contentResolver.getType(uri)
val ext = MimeTypeMap.getSingleton().getExtensionFromMimeType(mime)