I can confirm that this still works for both iOS and android, well, just finished testing in debug but I’m sure it will be the same for release. 
Good job @jesusmartinoza! 
I have completed an update, you can get it here: https://github.com/rbtech/fuse-samples/tree/master/Samples/NativeFacebookLogin
…and here when its merged into Fuse-Open: https://github.com/fuse-open/fuse-samples
Status of the PR can be followed here: https://github.com/fuse-open/fuse-samples/pull/79