android - 从我的应用程序中的上次访问页面恢复

Question

I have login page (activity) which is my first activity (landing page) of the app. Only after user gives correct username and password, the app allow you go to other pages to work with.

Now my question is, now the user is at the fourth page and he is working on it, And he minimize the app and use other app like messaging etc.. so when he come back to click my app icon again, my app starts from the first landing page, which is the login page, how can I make my app to resume from the fourth page?

Android 4.4.4, Kit Kat, Samsung

Regards, Nay TK

Answer 1

Add this in android manifest of loginActivity ,

android:launchMode="singleTask" 

more on android:launchMode

An instruction on how the activity should be launched. There are four modes that work in conjunction with activity flags (FLAG_ACTIVITY_* constants) in Intent objects to determine what should happen when the activity is called upon to handle an intent. They are:

"standard"

"singleTop"

"singleTask"

"singleInstance"

The system creates the activity at the root of a new task and routes the intent to it. However, if an instance of the activity already exists, the system routes the intent to existing instance through a call to its onNewIntent() method, rather than creating a new one.

go through official link for more detail

Answer 2

You can make your fourth activity as your launch activity. In the Resume of your Activity, you check if the user is logged in. If not, you start your Login activity.