Intent.FLAG_ACTIVITY_CLEAR_TOP doesn't deletes the activity stack

Question

I am developing the application in which i want to close whole application on button click. I know in android we should not think about to close the application because andr

Answer 1

Try Like this Way this is work for me:

Intent intent = new Intent(Activity3.this, FinishActivity.class);
intent.addFlags(android.content.Intent.FLAG_ACTIVITY_CLEAR_TOP);
startActivity(intent);
finish();

instead of your code

Intent intent = new Intent(Activity3.this, FinishActivity.class);
intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
startActivity(intent);
finish();

Answer 2

Use this--

 Intent intent = new Intent(Activity3.this, FinishActivity.class);
 intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP | 
 Intent.FLAG_ACTIVITY_NEW_TASK);
 intent.addFlags(Intent.FLAG_ACTIVITY_NO_HISTORY);
 startActivity(intent);
 finish();

Edited--New Answer and would work perfectly..

just taking an example...do it accordingly what your project needs--

I am taking three Activity class A, B and C..and I have applied a close button on the view of class C Activity. If you want then by the Back button you can go to the previous Activity and when you press the close button then you would exit from apps..have a look--

public class AActivity extends Activity {

  /** Called when the activity is first created. */
  @Override
   public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);

    Intent i = new Intent(this, B.class);
    startActivityForResult(i, 1);
}

@Override
protected void onActivityResult(final int requestCode,
        final int resultCode, final Intent intent) {
    super.onActivityResult(requestCode, resultCode, intent);

    if (resultCode == 5) {
        finish();
    }
}
}

Take next class activity--

   public class B extends Activity {
    /** Called when the activity is first created. */
   @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.b);

    Intent i = new Intent(this, C.class);
    startActivityForResult(i, 2);
}

@Override
protected void onActivityResult(final int requestCode,
        final int resultCode, final Intent intent) {
    super.onActivityResult(requestCode, resultCode, intent);

    if (resultCode == 5) {
        setResult(5);
        finish();
    }
}
}

Take last activity--

    public class C extends Activity {
   /** Called when the activity is first created. */
   @Override
   public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.c);
}

    // close button..set by xml view..you can set it by button listener.
public void close(View v) {
    setResult(5);
    finish();
}
}

Hopefully, it would solve your problem..cheers!

Answer 3

From documentation for Intent.FLAG_ACTIVITY_CLEAR_TOP

If set, and the activity being launched is already running in the current task, then instead of launching a new instance of that activity, all of the other activities on top of it will be closed and this Intent will be delivered to the (now on top) old activity as a new Intent.

So to get it work your FinishActivity must be first one in your Activity stack. In any other cases this solution wouldn't give you anything.

You must perform several steps to perform this:

1) Make FinishActivity as your launcher activity.

2) Do not provide any view for it and start first Activity of your application directly from onCreate callback :

3) Redefine onRestart callback:

Code sample:

private boolean isNeedToContinue = true;

@Override
protected void onCreate(Bundle arg0) {
    super.onCreate(arg0);
}

@Override
protected void onResume() {
    super.onResume();
    if (isNeedToContinue) {
                    startActivity(new Intent(this,FirstVisibleActivity.class));
                    isNeedToContinue = false;
    } else {
        finish();
    }
}

@Override
protected void onRestart() {
    super.onRestart();
    finish();
    isNeedToContinue = false;
}

I guess this is all you need. Good luck!

Answer 4

This worked for me:

Intent intent = new Intent(Activity3.this, FinishActivity.class);
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK | Intent.FLAG_ACTIVITY_NEW_TASK);
startActivity(intent);
finish();