android - Run app from last Activity after app kill -

in app have 3 activities:

1 activity: starting activity

in manifest:

<activity android:name=".first">         <intent-filter>             <action android:name="android.intent.action.main" />              <category android:name="android.intent.category.launcher" />         </intent-filter>     </activity> 

2 activity: login screen activity.

3 activity: activity showing after correct login.

in manifest:

<activity android:name=".third">         <intent-filter>             <action android:name="android.intent.action.main" />              <category android:name="android.intent.category.default" />         </intent-filter>     </activity> 

in 3. activity have button logout. when click logout button. app going activity 2. , after restart (kill app , start again). app started 1. activity. , it's correct.

but when don't click logout button , restart(kill app , start again). app must started 3 activity (user must still logged-in).

probably should manipulate intent flag.

you put key-value pair in sharedpreferences after log in activity 2.

then in activity 1 check if key-value pair exists, if go activity 3, if not go activity 2.

example:

activity2.java (after succesful login)

sharedpreferences sharedpreferences = getsharedpreferences("mypreferences", context.mode_private);   editor editor = sharedpreferences.edit(); editor.putstring("user_logged_in", "true"); editor.apply(); 

activity1.java (when starting)

sharedpreferences sharedpreferences = getsharedpreferences("mypreferences", context.mode_private); string islogged = sharedpreferences.getstring("user_logged_in", "not_logged" if (islogged.equals("true"))){   //user logged in. go activity 3 }else{   //user not logged in. go activity 2 } 

also, make sure clear key sharedpreferences when logging out.

here tutorial, might help:

http://www.tutorialspoint.com/android/android_session_management.htm