如何在Kotlin android中检查用户是否已将照片上传到我的图像视图

<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />

val permission = Manifest.permission.READ_EXTERNAL_STORAGE
val requestCode = 1

if (ContextCompat.checkSelfPermission(this, permission) != PackageManager.PERMISSION_GRANTED) {
    ActivityCompat.requestPermissions(this, arrayOf(permission), requestCode)
}

val requestCode = 2

val intent = Intent(Intent.ACTION_PICK, MediaStore.Images.Media.EXTERNAL_CONTENT_URI)
startActivityForResult(intent, requestCode)

override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
    super.onActivityResult(requestCode, resultCode, data)

    if (requestCode == 2 && resultCode == Activity.RESULT_OK && data != null) {
        val selectedImageUri = data.data
        imageView.setImageURI(selectedImageUri)
    }
}