How to show CardView containing ads randomly but not before 3 cards and not after 7 cards?

Question

I\'m following this tutorial to show cards and integrate Tinder-like swipe feature.

In-between the cards I want to show ads and for that I\'m using

Answer 1

If you know the cards to be put from before then what you can do is 1. create a card stack 2. put first two non-add-cards 3. Then make a random test if it has to put a add-card for third else put the non-add-card. 4. do this card put with test till 7 cards.

Example:

boolean atLeastOneAddPut = false;

int count = 1;
for(Data data: DataArray){
    if(count > 2 && count < 8 && shouldPutAdd()){
        mSwipeView.add(new AddView());
        count++;
    }
    mSwipeView.add(new NonAddView(data));
    count++;
}

private boolean shouldPutAdd(){
    //generate random 0 and 1
    int random;
    ...
    return random == 1;
}