how to finish all activities and close the application in android?

Question

My application has the following flow:

Home->screen 1->screen 2->screen 3->screen 4->screen 5>Home->screen 2->Home->Screen 3

My problem is that when I am trying to close the application then Home activity opens everytime when I am trying to close the application.

I just want to close the application when user presses the back key of device on home screen.

Answer 1

There is finishAffinity() method that will finish the current activity and all parent activities, but it works only in Android 4.1 or higher.

Answer 2

This works well for me.

• You should using FLAG_ACTIVITY_CLEAR_TASK and FLAG_ACTIVITY_NEW_TASK flags.

  Intent intent = new Intent(SecondActivity.this, CloseActivity.class);
  //Clear all activities and start new task
  intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK | Intent.FLAG_ACTIVITY_NEW_TASK); 
  startActivity(intent);
  

• onCreate() method of CloseActivity activity.

  @Override 
  protected void onCreate(Bundle savedInstanceState) {
      super.onCreate(savedInstanceState);
      finish(); // Exit 
  }
  

Answer 3

Use finishAffinity() method that will finish the current activity and all parent activities. But it works only for API 16+ mean Android 4.1 or higher.

API 16+ use:

finishAffinity();

Below API 16 use:

ActivityCompat.finishAffinity(this); //with v4 support library

To exit whole app:

finishAffinity(); // Close all activites
System.exit(0);  // Releasing resources

Answer 4

Sometime finish() not working

I have solved that issue with

finishAffinity()

Do not use

System.exit(0);

It will finish app without annimation.