Hi Midhun,
Thank you for your answer.
I try to manage session and natives views manually
Show the authentication view when I want at application launch, to permit at user to create his session with his password natively. To stop the session when he clicks to logout button. And not have automatic page such as the passcode view.
Furthermore I understand that it was easier to use SAML authentication with webview (see this post "SAML2 support for native applications presented a challenge: SAML2 is really designed around interactions taking place in a browser or webview–not in a native client") but I don't know if this is impossible to do natively or just difficult. I did not find any example.