CODEWITHSUNDEEP
androidandroid-intent
Mwas
Mwas

Reputation: 153

How to close all activities and exit from an app

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?

Upvotes: 8

Views: 12012

Answers (6)

Don Benito
Don Benito

Reputation: 55

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

finishAffinity();

Upvotes: 0

Sameera Nandasiri
Sameera Nandasiri

Reputation: 788

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);

Upvotes: 0

Arjun saini
Arjun saini

Reputation: 4182

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();

Upvotes: 4

Android Surya
Android Surya

Reputation: 544

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

Upvotes: 3

Andy Developer
Andy Developer

Reputation: 3101

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

Upvotes: 2

Lucas Ferraz
Lucas Ferraz

Reputation: 4152

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);

Upvotes: 6

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