Posts are hiding under the Second Cell In CollectionView

Question

i ma making Swift app with Xcode and using CollectionViewCell to fetch data from my WordPress Website. i have 2 cells in my CollectionView , one for loading posts and second for Google AdMob , I want to show Ads after 4 posts which is working great but now the problem is when Second cell is loaded i mean AdMob cell loaded then the post of that number is hidden behind it , like if there are posts of number 1,2,3,4,5 and ads load after 4 posts then number 5 post is no where.. this is my code

func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
    
     if (indexPath.item % 5 == 1){
        
        let adcell = collectionView.dequeueReusableCell(withReuseIdentifier: "adcell", for: indexPath) as! MovieCollectionViewCell
       
       // Google Ads Here
        
       return adcell
        
    }
    
    else{
        
        let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "MovieCollectionViewCell", for: indexPath) as! MovieCollectionViewCell
        
        cell.setup(with: newsData[indexPath.row])
        return cell
    }
}

please help me to solve this , i want to load ads but when ad loaded the post of that number should be loaded in next item cell.. thanks

Answer 1

First of all you use indexPath.item in the if block and indexPath.row in the else block, which might be a bit confusing but this is not the problem here.

indexPath.item is 4 on your fifth cell, so the if condition resolves to true and you return the adcell. On your sixth cell, indexPath.row is now 5, so the fifth item of newsData with index 4 is simply skipped.

func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {

    if (indexPath.item % 5 == 4){
    
        let adcell = collectionView.dequeueReusableCell(withReuseIdentifier: "adcell", for: indexPath) as! MovieCollectionViewCell
   
        // Google Ads Here
    
        return adcell
    
    }

    else {
    
        let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "MovieCollectionViewCell", for: indexPath) as! MovieCollectionViewCell
    
        cell.setup(with: newsData[indexPath.item-(indexPath.item/5])
        return cell
    }
}

EDIT:

If not already done:

func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
    return newsData.count + (newsData.count/5)
}