Completely remove an application from backstack

Question

The Task

I am supposed to connect two application that I made in android . Lets call one of them A (with activities A1 , A2, A3) and B (activities B1 ,B2 , B3) . A user would login from Application A ,and would be redirected to Application B . In Application B , the user might hop between activities . After he is done , he would press LOGOUT from Application B , and would be redirected to Application A . Upon doing this , I want the Application B to be cleared from the backstack .

The Problem
Even though upon logout I am finishing all the activities from the stack , the application name B is still mentioned in the back stack .

What I have achieved so far
This is how I invoke the Application B from Application A

    Intent intent= new Intent(Intent.ACTION_MAIN);
   intent.setComponent(new ComponentName("appB", "appB.MainActivity"));
                intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
                intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
                intent.putExtra(ARG_G2G_ACCESS_TOKEN, mTokenResponse.getAccessToken());

                startActivity(intent);

Upon logout , this is how I call the application A again . Firstly I finish all the activities that are running in the Task . Then I do

        Intent intent = new Intent(Intent.ACTION_MAIN);

    intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
    intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
    intent.setComponent(new ComponentName("appA", "appA.MainActivity"));

However even with the above the Application Application B is still mentioned in the Backstack. I would like that to be removed when B is launched from A.

Thanks

Did you try noHistory for B? – Pankaj Kumar Jan 13 '16 at 07:11 — Pankaj Kumar, Jan 13 '16 at 07:11
what about `finish();` ? – IntelliJ Amiya Jan 13 '16 at 07:13 — IntelliJ Amiya, Jan 13 '16 at 07:13
Set `noHistory` flag to `true` as suggested by Pankaj – Mustansar Saeed Jan 13 '16 at 07:17 — Mustansar Saeed, Jan 13 '16 at 07:17
check this http://stackoverflow.com/a/27765687/3871491 – Lalit Pratap Singh Jan 13 '16 at 07:17 — Lalit Pratap Singh, Jan 13 '16 at 07:17

score 2 · Answer 1 · edited May 23 '17 at 12:10

According to your question, You can add finish ()

or use android:noHistory="true"

finish () : Call this when your activity is done and should be closed.

Intent intent= new Intent(Intent.ACTION_MAIN);
                .....
                intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
                intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
                .........

                startActivity(intent);
                finish();

You can visit here How to finish current activity in Android .Hope this helps .

score 2 · Accepted Answer · edited May 23 '17 at 12:26

check the answer by Luke at the link below:
Close application and remove from recent apps/

<activity
    android:name="com.example.ExitActivity"
    android:theme="@android:style/Theme.NoDisplay"
    android:autoRemoveFromRecents="true"/>
enter code here

Then create a class ExitActivity.java:

public class ExitActivity extends Activity
{
    @Override protected void onCreate(Bundle savedInstanceState)
    {
        super.onCreate(savedInstanceState);

        if(android.os.Build.VERSION.SDK_INT >= 21)
        {
            finishAndRemoveTask();
        }
        else
        {
            finish();
        }
    }

    public static void exitApplication(Context context)
    {
        Intent intent = new Intent(context, ExitActivity.class);

        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK | Intent.FLAG_ACTIVITY_NO_ANIMATION | Intent.FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS);

        context.startActivity(intent);
    }
}

Completely remove an application from backstack

2 Answers2