npm install --save https://github.com/kaissaroj/react-native-wallpaper.git

 react-native link react-native-walle

import RNWalle from "react-native-walle";

RNWalle.setWallPaper("http://i.imgur.com/DvpvklR.png", function(res) {
  console.log(res);
  //res : 'success'
  //res : 'failed' or 'reason to fail while trying to set wallpaper'
});