Re: Trying to create a collection view with evenly distributed cell
Re: Trying to create a collection view with evenly distributed cell
- Subject: Re: Trying to create a collection view with evenly distributed cell
- From: Mike Abdullah <email@hidden>
- Date: Sun, 25 Jan 2015 10:21:32 +0000
> On 25 Jan 2015, at 10:12, Aaron Lewis <email@hidden> wrote:
>
> Hi,
>
> I'm trying to create a 3 cell per row collection, and I want no margin
> (horizontally or vertically) between each cell.
>
> So in xcode I set Min Spacing For Cells / For Lines to 1, Indicator
> insets (all 4 values) to 0, then I write code like this:
>
> - (NSInteger)collectionView:(UICollectionView *)collectionView
> numberOfItemsInSection:(NSInteger)section {
>
> return 9;
>
> }
>
>
> - (NSInteger)numberOfSectionsInCollectionView:(UICollectionView *)collectionView
>
> {
>
> return 1;
>
> }
>
>
> - (UICollectionViewCell *)collectionView:(UICollectionView
> *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath{
>
>
>
> CollectionCell *cell = [collectionView
> dequeueReusableCellWithReuseIdentifier:@"Cell"
> forIndexPath:indexPath];
>
>
>
> [cell setFrame: CGRectMake (cell.frame.origin.x,
>
> cell.frame.origin.y,
>
> self.collectionView.frame.size.width / 3,
>
> cell.frame.size.height)];
Time to back up and re-learn the basics of collection views. Collection views are in charge of the layout of their cells, including sizing. You don’t get to set the cell’s frame directly.
Instead you want to set the collection view’s item size appropriate to match the view’s width. This may help: http://dativestudios.com/blog/2015/01/08/collection_view_layouts_on_wide_phones/
>
>
>
> cell.backgroundColor = [UIColor whiteColor];
>
> return cell;
>
> }
>
> If you run that code you will see the horizontal margin still exists
> and is very huge compared to the vertical one.
>
> What's the correct way to do it?
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