How to close all activities and exit from an app

Question

My app is intended to allow only logged in user to access the activities. If a user logs out, the Shared preference boolean isLogged in is set to false and the user should not access the rest of activities except the LoginActivity.

However, I am able to access all the previously opened activities by pressing the back button.

I would use finish(); while opening each activity but then I would like users to still use the back button while they're logged in.

I have tried solutions from other similar questions like

Intent intent = new Intent(getApplicationContext(), LoginActivity.class);
intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
intent.putExtra("EXIT", true);
startActivity(intent);

and on the onCreate() of my LoginActivity I have added

if (getIntent().getBooleanExtra("EXIT", false)) {
         finish();
    }

When I press the logout option, the previous activity opens instead.

Any suggestions please help me?

try this.. http://stackoverflow.com/a/38268217/6334037 – Jitesh Prajapati Jul 14 '16 at 12:51 — Jitesh Prajapati, Jul 14 '16 at 12:51

score 6 · Accepted Answer · answered Jul 14 '16 at 12:38

6

You should use this flags, that clear your TASK and create a new one

Intent intent = new Intent(getApplicationContext(), LoginActivity.class);
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK);
startActivity(intent);

answered Jul 14 '16 at 12:38

Lucas Ferraz

4,112
2
18
23

score 4 · Answer 2 · answered Jul 14 '16 at 12:41

Try this

You need to add these flag in Intent..

Intent intent = new Intent(getApplicationContext(), LoginActivity.class);
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK|Intent.FLAG_ACTIVITY_CLEAR_TOP|Intent.FLAG_ACTIVITY_NEW_TASK);
intent.putExtra("EXIT", true);
startActivity(intent);
finish();

score 3 · Answer 3 · answered Jul 14 '16 at 12:41

3

if (getIntent().getBooleanExtra("EXIT", false)) {
        finish();
android.os.Process.killProcess(android.os.Process.myPid());
    }

answered Jul 14 '16 at 12:41

Android Surya

544
3
17

score 2 · Answer 4 · edited May 23 '17 at 11:54

2

Try to add all activity in array and when you want to remove just remove it from array and finish that activity. see my answer here Remove activity from stack

edited May 23 '17 at 11:54

Community

1
1

answered Jul 14 '16 at 12:38

Andy Developer

3,071
1
19
39

score 0 · Answer 5 · answered Mar 31 '17 at 13:44

I faced to a similar situation. As I figured out, even if I call the finish() function in the beginning, the whole onCreate() function get executed. Then it will finish. In my scenario, in the onCreate() function, I call to another Activity. So even if the main activity finishes after onCreate(), the second activity still exists. So my solution was,

private boolean finish = false;

in onCreate() of the main function,

if(intent.getBooleanExtra("EXIT", false)) {
        finish();
        finish = true;
    }

and I put a check in all navigations

if(!finish) {
        Intent intent = new Intent(MainActivity.this, LoginActivity.class);
        startActivity(intent);
        finish();
    }

My exit function was,

Intent intent = new Intent(getApplicationContext(), MainActivity.class);
    intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
    intent.putExtra("EXIT", true);
    startActivity(intent);

score 0 · Answer 6 · answered Nov 02 '21 at 22:40

0

To exit the app when back button pressed try to use following code also:

finishAffinity();

answered Nov 02 '21 at 22:40

Don Benito

55
7

Your answer could be improved with additional supporting information. Please [edit] to add further details, such as citations or documentation, so that others can confirm that your answer is correct. You can find more information on how to write good answers [in the help center](/help/how-to-answer). – Community Nov 03 '21 at 04:38

How to close all activities and exit from an app

6 Answers6

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