Looking for logging into the Sistema De Android site and are not getting the correct working link for it? In such a case, you can use the links given here by searching your desired login page in the search box. If the page is present on our website then you will get all the links related to the Sistema De Android site. After that you can login as usual with your login credentials.
https://www.youtube.com/watch%3Fv%3DmDBt_OPio0U
https://www.youtube.com/watch%3Fv%3Df-BFw94NlNk
https://www.youtube.com/watch%3Fv%3DsDdh9Vku5yQ
https://pt.stackoverflow.com/questions/140563/como-fazer-uma-tela-de-login-e-senha
http://www.google.com.br/url?url=http://professormarcomaddo.blogspot.com/2015/04/curso-android-aula-08-edittext.html
https://www.thiengo.com.br/como-implementar-o-account-kit-login-em-seu-aplicativo-android
https://www.linkedin.com/pulse/tela-de-cadastro-e-login-android-com-firebase-emanuelle-menali
http://www.google.com.br/url?url=http://respostas.guj.com.br/46769-criando-um-aplicativo-com-sistema-de-login
http://www.google.com.br/url?url=http://www.guj.com.br/t/criar-tela-de-login-para-admin-e-usuario-android-studio/329543
https://developer.android.com/studio/projects/templates%3Fhl%3Dpt-br
https://tekzoom.com.br/como-criar-apps-android-e-ios-aula-3-login-com-firebase/
https://www.androidpro.com.br/blog/armazenamento-de-dados/usando-banco-de-dados-externo-no-android/
https://www.devmedia.com.br/forum/login-e-senha-no-android/442793