MONUniformFlowLayout

A simple flow layout the handles the arrangement of the items in a collection view uniformly based on the given number of columns, height of the item, inter item spacing, header height, and footer height for a particular section.

Installation

• Manual Install

    1. Add the files 'MONUniformFlowLayout.h' and 'MONUniformFlowLayout.m' to your project.
    2. Then import the header file to use it.

• Via CocoaPods

    1. Add 'pod MONUniformFlowLayout' in your Podfile.
    2. Then 'pod install' in the terminal.

Setting as UICollectionView's Layout

    MONUniformFlowLayout *layout = [MONUniformFlowLayout new];
    layout.interItemSpacing = MONInterItemSpacingMake(10.0f, 10.0f);
    layout.enableStickyHeader = YES;
    
    UICollectionView *collectionView = [[UICollectionView alloc] initWithFrame:self.view.bounds 
                                                          collectionViewLayout:layout];

The property interItemSpacing is the horizontal and the vertical space between items for all sections while the property enableStickyHeader gives an option to the user whether the collection view should enable or disable sticky header views for all sections.

The static inline method MONInterItemSpacingMake(CGFloat x, CGFloat y) creates a struct defining the horizontal and vertical spaces between items.

MONUniformFlowLayoutDelegate Methods

    @required
    // Gets the item height in a particular section
    - (CGFloat)collectionView:(UICollectionView *)collectionView  
                       layout:(MONUniformFlowLayout *)layout 
          itemHeightInSection:(NSInteger)section;

    @optional
    //  Gets the header height in a particular section
    - (CGFloat)collectionView:(UICollectionView *)collectionView
                       layout:(MONUniformFlowLayout *)layout 
        headerHeightInSection:(NSInteger)section;
    
    // Gets the footer height in a particular section
    - (CGFloat)collectionView:(UICollectionView *)collectionView
                       layout:(MONUniformFlowLayout *)layout
        footerHeightInSection:(NSInteger)section;

    // Gets the spacing between sections
    - (CGFloat)collectionView:(UICollectionView *)collectionView
      sectionSpacingForlayout:(MONUniformFlowLayout *)layout;

    // Gets the number of columns in a particular section
    - (NSUInteger)collectionView:(UICollectionView *)collectionView
                          layout:(MONUniformFlowLayout *)layout
        numberOfColumnsInSection:(NSInteger)section;)

Usage in a UIViewController

    @interface ViewController : UIViewController <MONUniformFlowLayoutDelegate,
                             UICollectionViewDelegate, UICollectionViewDataSource,
                             UICollectionViewDelegateFlowLayout>
    ...
    @end