app crashed when i click on ImageView placeholder i just write a code to get permissions to READ_EXTERNAL_STORAGE when i click on an ImageView. All of things going fine but i run the app and clicked on ImageView then the app got crashed. here is my code: in OnCreate: var iv_user_image:ImageView = findViewById(R.id.iv_user_image) iv_user_image.setOnClickListener(this@UserProfileActivity) my methods: override fun onClick(view: View?) { if (view != null){ when (view.id){...