Cannot finish Activity

Question

In my app I have 5 activities excluding main activity Im using other 4 activites repeatedly in cycle manner.

in my each activity (except main) onPause() method I have written Activityname.this.finish();

when I'm ending cycle on 5 th activity and returning back to main activity...

but my problem is when I'm ending main activity.. instead of closing app, it goes to 3 rd activity.

I don't know where is a problem exactly. may be in 3rd activity im using db n not closing it explicitly. Is this a problem?

@Override
protected void onPause() {
    // TODO Auto-generated method stub
    super.onPause();
    PlayerDetails.this.finish();
}

this onPause() method I'm using

@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
    // TODO Auto-generated method stub
    if (keyCode==KeyEvent.KEYCODE_BACK){
        AlertDialog.Builder alert = new AlertDialog.Builder(MainActivity.this);
        alert.setIcon(R.drawable.ic_launcher);
        alert.setTitle(R.string.app_name);
        alert.setMessage("Really Exit?");
        alert.setPositiveButton("Yes", new DialogInterface.OnClickListener(){
            @Override
            public void onClick(final DialogInterface dialog, final int which) {
                    MainActivity.this.finish();
                    dialog.dismiss();
                    }
        });
        alert.setNegativeButton("No", new DialogInterface.OnClickListener(){
            @Override
            public void onClick(final DialogInterface dialog, final int which) {
                    dialog.dismiss();
                    }
        });
        try{
        AlertDialog dialog = alert.create();
        dialog.show();
        }
        catch(Exception e){
            e.printStackTrace();
        }
    }
    return true;
}

this is my mainActivity method to close the app

Answer 1

You can use Flags instead of calling finish() every time in each Activity. When you start a new Activity just use FLAG_ACTIVITY_CLEAR_TASK followed by FLAG_ACTIVITY_NEW_TASK with the Intent which will clear the stack buffer and start the activity as a new. something like ..

  Intent intent = new Intent(current_context, destination_activity.class);
  intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK|Intent.FLAG_ACTIVITY_NEW_TASK);
  startActivity(intent);

You can find more information about Flags in this conversation.