安卓：从回来登录后登录页面prevent用户 [英] Android: prevent user from coming back to login page after logging in
问题描述
我在我的Android应用程序的登录页面。我想prevent用户登录到回到登录页面后。此外，当用户重新打开应用程序，如果他已经登录过，我想直接去主网页，而无需进入登录页面。
I have a login page in my android app. I want to prevent the user after logging in to come back to the login page. Also, when the user reopens the app, if he has logged in before, I want to go directly to the main page without having to go to the login page.
什么这样做的最好方法是什么？一个想法我认为是拯救登录参数在cookie中，然后，当应用程序是重开，如果cookie包含了一些登录信息，我膨胀的主要页面，否则，我膨胀的登录页面。这是做的最好的方法是什么？
What the best way of doing that? One idea I thought of is to save the login parameters in a cookie, and then, when the app is reopens, if the cookie contains some login information, I inflate the main page, otherwise, I inflate the login page. Is this the best way of doing it?
谢谢
推荐答案
1）在显示登录对话框/活动只是检查你的preferences特殊标志presence：
1) Before displaying login dialog/activity just check in your preferences presence of special flag:
Context context=this.getApplicationContext();
SharedPreferences settings=context.getSharedPreferences(PREFERENCES, 0);
boolean isLogged=settings.getBoolean("isLogged", false);
根据 isLogged 值，可以重定向至登录或其他页
Depending on isLogged value you can redirect either to login or other page
2）在某处登录后保存您的登录页面 isLogged 状态，如：
2) Somewhere in your login page after logging save isLogged status, like:
Context context=this.getApplicationContext();
SharedPreferences settings=context.getSharedPreferences(PREFERENCES, 0);
SharedPreferences.Editor editor = settings.edit();
editor.putBoolean("isLogged", true);
editor.commit();
这是所有乡亲！
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