UICollectionView Cell Spacing based on device screen size

Question

I have implemented a UICollectionView, the cell size is w90 h90. When i run it on iPhone 6 i get the proper spacing between cell but when i do it on iPhone 5s i get more sp

Answer 1

Step 1: Implement UICollectionViewDelegateFlowLayout(if not done).

Step 2: Use delegate method of UICollectionViewDelegateFlowLayout.

func collectionView(collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, sizeForItemAtIndexPath indexPath: NSIndexPath) -> CGSize
{
return CGSizeMake((UIScreen.mainScreen().bounds.width-15)/4,120); //use height whatever you wants.
}

Step 3: Go to XIB or StoryBoard where you have your CollectionView.

Step 4: In XIB or StoryBoard where you have your CollectionView click on CollectionView.

Step 5: Go to InterfaceBuilder, then in second last tab (ie: Size Inspector) set Min Spacing

For Cells = 5

For Lines = 5

That it.

Note:

• This solution is for if you wants to make spacing between cell = 5.
• If your spacing is different then 5, then you need to change value 15 in delegate method.
• Ex: Spacing between cell = 10, then change delegate 15 to 10x3 = 30

return CGSizeMake((UIScreen.mainScreen().bounds.width-30)/4,120);

• And set Min Spacing

For Cells = 10

For Lines = 10

and vice versa.

Swift 3 Version

func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, sizeForItemAt indexPath: IndexPath) -> CGSize {
    let width = UIScreen.main.bounds.width
    return CGSize(width: (width - 10)/3, height: (width - 10)/3) // width & height are the same to make a square cell
}