Drabu

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.codinginflow.permissionrequestexample">

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

    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"

Drabu

private val classMap = mutableMapOf<String, Class<*>>()

private inline fun <reified T : Any> Any.castOrNull() = this as? T

internal fun <T> loadClassOrNull(className: String): Class<out T>? {
    return classMap.getOrPut(className) {
        try {
            Class.forName(className)
        } catch (e: ClassNotFoundException) {
            return null