ios CollectionView, autoresizing mask does not work, when I change the cell size programmatically

Question

Update: I got the answer from here

Autoresizing issue of UICollectionViewCell contentView's frame in Storyboard prototype cell (Xcode 6, iOS 8 SDK) happens when running on iOS 7 only

And here

UICollectionView cell subviews do not resize

At both the places we can get the same answer of two lines of code.

You can not see the CollectionView's contentView in XIB but it is there. So just apply the code.

self.contentView.autoresizingMask = UIViewAutoresizingFlexibleHeight | UIViewAutoresizingFlexibleWidth;
    self.contentView.translatesAutoresizingMaskIntoConstraints = YES;

In My ios App,

In my CollectionView,

I need a different cell sizes for iPhone 4s and iPhone 6. I am setting it programmatically, here autoresizing mask does not work.

Below is the code,

-(CGSize)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout *)collectionViewLayout sizeForItemAtIndexPath:(NSIndexPath *)indexPath{

    CGFloat itemWidth=(self.view.frame.size.width-cellMarginForCollectionView)/2;

    return CGSizeMake(itemWidth, itemWidth);
}

And results come like below,

The problem is label cuts down, and imgeview also cut at Right side.

@ArpitBParekh may be you can give a device specific value for your cell — Ravi Panchal, Oct 20 '16 at 10:55
Means I have given a device specific width, height for the cell..Second thing I can do is, have a seperate XIB, for different devices.... — Arpit B Parekh, Oct 20 '16 at 11:06
I got the answer from here, http://stackoverflow.com/questions/24750158/autoresizing-issue-of-uicollectionviewcell-contentviews-frame-in-storyboard-pro — Arpit B Parekh, Oct 20 '16 at 11:44
And from here, http://stackoverflow.com/questions/15303100/uicollectionview-cell-subviews-do-not-resize same answer at both the places. — Arpit B Parekh, Oct 20 '16 at 11:44

ios CollectionView, autoresizing mask does not work, when I change the cell size programmatically

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