How To maintain session in phoneGap

You can make use of localStorage, as Nurdin said its not that persistent.

Read more about it here. http://www.w3schools.com/html/html5_webstorage.asp

so you must put a condition to check if the user is logged in or not before login page, ie

if(window.localStorage.getItem("loggedIn") == 1) {
// Logged In
// Redirect to first page after logged in.
}
else
{
// Redirect to login page.
}

In login page, after the login success.

window.localStorage.setItem("loggedIn", 1);
window.localStorage.setItem("username", document.getElementsByName("usernametextbox").value);

etc..

In logout page clear this localStorage value.

window.localStorage.removeItem("loggedIn");
window.localStorage.removeItem("username");

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