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override fun onRequestPermissionsResult(requestCode: Int, permissions: Array<String?>, grantResults: IntArray) {
super.onRequestPermissionsResult(requestCode, permissions, grantResults)
//TODO show live camera footage
if (grantResults.isNotEmpty() && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
//TODO show live camera footage
} else {
finish()
}
}