ionic2 angularfire example better than google example 十二月 16, 2016 https://github.com/rodrigoreal/ionic2-angularfire-login ========== https://github.com/angular/angularfire2/issues/560 https://blog.khophi.co/angularfire2-authentication/ https://github.com/angular/angularfire2/issues/568 https://github.com/angular/angularfire2/issues/566
