This non extension World Radio app uses an online radio countries list for a similar radio player (and without a Player component ) is described by Patryk
📻 WebView Radio Stream Player - #9 by Patryk_F .
You might find the code useful if you cannot get your original Project working. The original versions of the app show other technique 
📻 WebView Radio Stream Player
Merry Christmas, Wesołych Świąt, Feliz Navidad, God Jul, Joyeux Noel, Καλά Χριστούγεννα, Happy Christmas, Veseloho Rizdva, Prettige Kerstdagen, Frohe Weihnachten!, 성탄 축하 , Buon Natale, 聖誕快樂 , 圣诞快乐, Sretan
--Steve