IrregularGridCollectionView处理不定宽度的标签cell

 

效果

 

源码

中的 

////  IrregularGridCollectionView.h//  IrregularGridCollectionView////  Created by YouXianMing on 16/8/30.//  Copyright © 2016年 YouXianMing. All rights reserved.//#import 
     
      #import "IrregularGridCellDataAdapter.h"#import "MaximumSpacingFlowLayout.h"#import "CustomIrregularGridViewCell.h"@class IrregularGridViewCellClassType;@class IrregularGridCollectionView;@protocol IrregularGridCollectionViewDelegate 
      
       @optional/** *  IrregularGridCollectionView did selected event. * *  @param collectionGridView CollectionGridView's object. *  @param cell               CustomCollectionGridViewCell type's cell. *  @param event              CustomCollectionGridViewCell's event. */- (void)irregularGridCollectionView:(IrregularGridCollectionView *)irregularGridCollectionView didSelectedCell:(CustomIrregularGridViewCell *)cell event:(id)event;@end@interface IrregularGridCollectionView : UIView/** *  CollectionGridView's delegate. */@property (nonatomic, weak) id 
       
         delegate;/** *  CollectionView. */@property (nonatomic, strong, readonly) UICollectionView *collectionView;/** *  Content edgeInsets, default is UIEdgeInsetsMake(5, 5, 5, 5). */@property (nonatomic) UIEdgeInsets contentEdgeInsets;/** *  Horizontal item's gap, default is 5.f. */@property (nonatomic) CGFloat horizontalGap;/** *  Vertical item's gap, default is 5.f. */@property (nonatomic) CGFloat verticalGap;/** *  Item's height, default is 20.f. */@property (nonatomic) CGFloat gridHeight;/** *  Register the cells. */@property (nonatomic, strong) NSArray 
        
          *registerCells;/** *  The cells data adapter. */@property (nonatomic, strong) NSMutableArray 
         
           *adapters;/** *  To make the config effective. */- (void)makeTheConfigEffective;/** *  Get the CollectionView's content size. */@property (nonatomic, readonly) CGSize contentSize;/** *  Reset the view's size. */- (void)resetSize;#pragma mark - Constructor.+ (instancetype)irregularGridCollectionViewWithFrame:(CGRect)frame                                            delegate:(id 
          
           )delegate registerCells:(NSArray 
           
             *)registerCells contentEdgeInsets:(UIEdgeInsets)edgeInsets verticalGap:(CGFloat)verticalGap horizontalGap:(CGFloat)horizontalGap gridHeight:(CGFloat)gridHeight;@end#pragma mark - CollectionGridViewCellClassType Class@interface IrregularGridViewCellClassType : NSObject@property (nonatomic) Class className;@property (nonatomic, strong) NSString *reuseIdentifier;@endNS_INLINE IrregularGridViewCellClassType *gridViewCellClassType(Class className, NSString *reuseIdentifier) { IrregularGridViewCellClassType *type = [IrregularGridViewCellClassType new]; type.className = className; type.reuseIdentifier = reuseIdentifier; return type;}
           
          
         
        
       
      
     

////  IrregularGridCollectionView.m//  IrregularGridCollectionView////  Created by YouXianMing on 16/8/30.//  Copyright © 2016年 YouXianMing. All rights reserved.//#import "IrregularGridCollectionView.h"#pragma mark - IrregularGridCollectionView Class@interface IrregularGridCollectionView () 
     
      @property (nonatomic, strong) UICollectionView            *collectionView;@property (nonatomic, strong) UICollectionViewFlowLayout  *flowLayout;@end@implementation IrregularGridCollectionView#pragma mark - Init- (void)layoutSubviews {        [super layoutSubviews];    _collectionView.frame = CGRectMake(0, 0, self.frame.size.width, self.frame.size.height);}- (instancetype)initWithFrame:(CGRect)frame {        if (self = [super initWithFrame:frame]) {                self.contentEdgeInsets   = UIEdgeInsetsMake(5, 5, 5, 5);        self.horizontalGap       = 5.f;        self.verticalGap         = 5.f;        self.gridHeight          = 20.f;                // Init UICollectionViewFlowLayout.        self.flowLayout = [[MaximumSpacingFlowLayout alloc] init];                // Init UICollectionView.        self.collectionView = [[UICollectionView alloc] initWithFrame:self.bounds collectionViewLayout:self.flowLayout];        self.collectionView.showsHorizontalScrollIndicator = NO;        self.collectionView.showsVerticalScrollIndicator   = NO;        self.collectionView.backgroundColor                = [UIColor clearColor];        self.collectionView.delegate                       = self;        self.collectionView.dataSource                     = self;        [self addSubview:self.collectionView];    }        return self;}- (void)makeTheConfigEffective {        self.collectionView.contentInset        = self.contentEdgeInsets;    self.flowLayout.minimumLineSpacing      = self.verticalGap;    self.flowLayout.minimumInteritemSpacing = self.horizontalGap;}#pragma mark - UICollectionView's delegate & data source.- (NSInteger)collectionView:(UICollectionView *)collectionView numberOfItemsInSection:(NSInteger)section {        return _adapters.count;}- (UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath {        IrregularGridCellDataAdapter *adapter = _adapters[indexPath.row];    adapter.indexPath                     = indexPath;        CustomIrregularGridViewCell  *cell    = [collectionView dequeueReusableCellWithReuseIdentifier:adapter.cellReuseIdentifier forIndexPath:indexPath];    cell.delegate                         = self;    cell.dataAdapter                      = adapter;    cell.data                             = adapter.data;    cell.indexPath                        = indexPath;    cell.collectionView                   = collectionView;    cell.collectionGridView = self;    [cell loadContent];        return cell;}- (CGSize)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout*)collectionViewLayout sizeForItemAtIndexPath:(NSIndexPath *)indexPath {        IrregularGridCellDataAdapter *adapter = _adapters[indexPath.row];    return CGSizeMake(adapter.itemWidth, self.gridHeight);}+ (instancetype)irregularGridCollectionViewWithFrame:(CGRect)frame                                            delegate:(id 
      
       )delegate                                       registerCells:(NSArray 
       
         *)registerCells                                   contentEdgeInsets:(UIEdgeInsets)edgeInsets                                         verticalGap:(CGFloat)verticalGap                                       horizontalGap:(CGFloat)horizontalGap                                          gridHeight:(CGFloat)gridHeight {        IrregularGridCollectionView *irregularGridView = [[[self class] alloc] initWithFrame:frame];    irregularGridView.delegate                     = delegate;    irregularGridView.contentEdgeInsets            = edgeInsets;    irregularGridView.verticalGap                  = verticalGap;    irregularGridView.horizontalGap                = horizontalGap;    irregularGridView.gridHeight                   = gridHeight;    irregularGridView.registerCells                = registerCells;    [irregularGridView makeTheConfigEffective];        return irregularGridView;}#pragma mark - CustomIrregularGridViewCellDelegate- (void)customIrregularGridViewCell:(CustomIrregularGridViewCell *)cell event:(id)event {    if (self.delegate && [self.delegate respondsToSelector:@selector(irregularGridCollectionView:didSelectedCell:event:)]) {                [self.delegate irregularGridCollectionView:self didSelectedCell:cell event:event];    }}#pragma mark - Setter & Getter- (void)setRegisterCells:(NSArray 
        
          *)registerCells {        _registerCells = registerCells;        for (IrregularGridViewCellClassType *type in registerCells) {                [self.collectionView registerClass:type.className forCellWithReuseIdentifier:type.reuseIdentifier];    }}- (CGSize)contentSize {        CGSize size = [_flowLayout collectionViewContentSize];        size.width  += self.contentEdgeInsets.left + self.contentEdgeInsets.right;    size.height += self.contentEdgeInsets.top  + self.contentEdgeInsets.bottom;        return size;}- (void)resetSize {        CGRect newFrame = self.frame;    newFrame.size   = [self contentSize];    self.frame      = newFrame;}@end#pragma mark - IrregularGridViewCellClassType Class@implementation IrregularGridViewCellClassType@end
        
       
      
     

 

细节