定製通用的標籤選取器，定製標籤選取器

定製通用的標籤選取器，定製標籤選取器

定製通用的標籤選取器

 

效果

 

源碼

https://github.com/YouXianMing/UI-Component-Collection 中的 CollectionGridView

////  CollectionGridView.h//  CollectionView////  Created by YouXianMing on 16/7/14.//  Copyright © 2016年 YouXianMing. All rights reserved.//#import <UIKit/UIKit.h>#import "CollectionGridCellDataAdapter.h"#import "CustomCollectionGridViewCell.h"@class CollectionGridView;@class CollectionGridViewCellClassType;#pragma mark - CollectionGridView Class@protocol CollectionGridViewDelegate <NSObject>@optional/** *  CollectionGridView did selected event. * *  @param collectionGridView CollectionGridView's object. *  @param cell               CustomCollectionGridViewCell type's cell. */- (void)collectionGridView:(CollectionGridView *)collectionGridView didSelectedCell:(CustomCollectionGridViewCell *)cell;@end@interface CollectionGridView : UIView/** *  CollectionGridView's delegate. */@property (nonatomic, weak) id <CollectionGridViewDelegate> delegate;/** *  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;/** *  The cell's count at the horizontal direction, default is 3. */@property (nonatomic) NSUInteger horizontalCellCount;/** *  Register the cells. */@property (nonatomic, strong) NSArray <CollectionGridViewCellClassType *> *registerCells;/** *  The cells data adapter. */@property (nonatomic, strong) NSArray <CollectionGridCellDataAdapter *> *adapters;/** *  To make the config effective. */- (void)makeTheConfigEffective;/** *  Reset the view's size. */- (void)resetSize;/** *  Get the cell's size. */@property (nonatomic, readonly) CGSize cellSize;/** *  Get the CollectionView's content size. */@property (nonatomic, readonly) CGSize contentSize;/** *  Reloads just the items at the specified index paths. * *  @param indexPaths An array of NSIndexPath objects identifying the items you want to update. */- (void)reloadItemsAtIndexPaths:(NSArray<NSIndexPath *> *)indexPaths;/** *  Reload data. */- (void)reloadData;@end#pragma mark - CollectionGridViewCellClassType Class@interface CollectionGridViewCellClassType : NSObject@property (nonatomic)         Class      className;@property (nonatomic, strong) NSString  *reuseIdentifier;@endNS_INLINE CollectionGridViewCellClassType *gridViewCellClassType(Class className, NSString  *reuseIdentifier) {        CollectionGridViewCellClassType *type = [CollectionGridViewCellClassType new];    type.className                        = className;    type.reuseIdentifier                  = reuseIdentifier;        return type;}

////  CollectionGridView.m//  CollectionView////  Created by YouXianMing on 16/7/14.//  Copyright © 2016年 YouXianMing. All rights reserved.//#import "CollectionGridView.h"@implementation CollectionGridViewCellClassType@end@interface CollectionGridView () <UICollectionViewDelegate, UICollectionViewDataSource>@property (nonatomic, strong) UICollectionView            *collectionView;@property (nonatomic, strong) UICollectionViewFlowLayout  *flowLayout;@property (nonatomic) CGSize cellSize;@property (nonatomic) CGSize contentSize;@end@implementation CollectionGridView#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;        self.horizontalCellCount = 3;                // Init UICollectionViewFlowLayout.        self.flowLayout                         = [[UICollectionViewFlowLayout alloc] init];        self.flowLayout.minimumInteritemSpacing = 0;                // 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 {    CGFloat width     = self.frame.size.width;    CGFloat cellWidth = (width - self.contentEdgeInsets.left -                         self.contentEdgeInsets.right -                         _horizontalGap * (_horizontalCellCount - 1)) / (CGFloat)_horizontalCellCount;        self.collectionView.contentInset        = self.contentEdgeInsets;    self.flowLayout.minimumLineSpacing      = self.verticalGap;    self.flowLayout.minimumInteritemSpacing = self.horizontalGap;    self.flowLayout.itemSize                = CGSizeMake(cellWidth, self.gridHeight);        self.cellSize = self.flowLayout.itemSize;}#pragma mark - Reload data.- (void)reloadItemsAtIndexPaths:(NSArray<NSIndexPath *> *)indexPaths {    [self.collectionView reloadItemsAtIndexPaths:indexPaths];}- (void)reloadData {    [self.collectionView reloadData];}#pragma mark - UICollectionView's delegate & data source.- (NSInteger)collectionView:(UICollectionView *)collectionView numberOfItemsInSection:(NSInteger)section {        return _adapters.count;}- (UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath {        CollectionGridCellDataAdapter *adapter = _adapters[indexPath.row];    CustomCollectionGridViewCell  *cell    = [collectionView dequeueReusableCellWithReuseIdentifier:adapter.cellReuseIdentifier                                                                                       forIndexPath:indexPath];    cell.dataAdapter        = adapter;    cell.data               = adapter.data;    cell.indexPath          = indexPath;    cell.collectionView     = collectionView;    cell.collectionGridView = self;    [cell loadContent];        return cell;}- (void)collectionView:(UICollectionView *)collectionView didSelectItemAtIndexPath:(NSIndexPath *)indexPath {        CustomCollectionGridViewCell *cell = (CustomCollectionGridViewCell *)[collectionView cellForItemAtIndexPath:indexPath];    [cell selectedEvent];        if (self.delegate && [self.delegate respondsToSelector:@selector(collectionGridView:didSelectedCell:)]) {                [self.delegate collectionGridView:self didSelectedCell:cell];    }}#pragma mark - Setter & Getter- (void)setRegisterCells:(NSArray <CollectionGridViewCellClassType *> *)registerCells {        _registerCells = registerCells;        for (CollectionGridViewCellClassType *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

////  CustomCollectionGridViewCell.h//  CollectionView////  Created by YouXianMing on 16/7/14.//  Copyright © 2016年 YouXianMing. All rights reserved.//#import <UIKit/UIKit.h>#import "CollectionGridCellDataAdapter.h"@class CollectionGridView;@interface CustomCollectionGridViewCell : UICollectionViewCell@property (nonatomic, weak) id                              data;@property (nonatomic, weak) CollectionGridCellDataAdapter  *dataAdapter;@property (nonatomic, weak) UICollectionView               *collectionView;@property (nonatomic, weak) NSIndexPath                    *indexPath;@property (nonatomic, weak) CollectionGridView             *collectionGridView;#pragma mark - Method you should overwrite./** *  Setup cell, override by subclass. */- (void)setupCell;/** *  Build subview, override by subclass. */- (void)buildSubview;/** *  Load content, override by subclass. */- (void)loadContent;/** *  Selected event, override by subclass. */- (void)selectedEvent;#pragma mark - Constructor.+ (CollectionGridCellDataAdapter *)dataAdapterWithCellReuseIdentifier:(NSString *)reuseIdentifier                                                                 data:(id)data                                                                 type:(NSInteger)type;@end

////  CustomCollectionGridViewCell.m//  CollectionView////  Created by YouXianMing on 16/7/14.//  Copyright © 2016年 YouXianMing. All rights reserved.//#import "CustomCollectionGridViewCell.h"@implementation CustomCollectionGridViewCell- (instancetype)initWithFrame:(CGRect)frame {        if (self = [super initWithFrame:frame]) {                [self setupCell];                [self buildSubview];    }        return self;}- (void)setupCell {    }- (void)buildSubview {    }- (void)loadContent {    }- (void)selectedEvent {    }+ (CollectionGridCellDataAdapter *)dataAdapterWithCellReuseIdentifier:(NSString *)reuseIdentifier data:(id)data type:(NSInteger)type {    NSString *identifierString = nil;    reuseIdentifier.length <= 0 ? (identifierString = NSStringFromClass([self class])) : (identifierString = reuseIdentifier);        return [CollectionGridCellDataAdapter collectionGridCellDataAdapterWithCellReuseIdentifier:identifierString data:data cellType:type];}@end

////  CollectionGridCellDataAdapter.h//  CollectionView////  Created by YouXianMing on 16/7/14.//  Copyright © 2016年 YouXianMing. All rights reserved.//#import <Foundation/Foundation.h>#import <UIKit/UIKit.h>@interface CollectionGridCellDataAdapter : NSObject@property (nonatomic, strong) id             data;@property (nonatomic, strong) NSString      *cellReuseIdentifier;@property (nonatomic, weak)   NSIndexPath   *indexPath;@property (nonatomic)         NSInteger      cellType;+ (instancetype)collectionGridCellDataAdapterWithCellReuseIdentifier:(NSString *)cellReuseIdentifier                                                                data:(id)data                                                            cellType:(NSInteger)cellType;@endNS_INLINE CollectionGridCellDataAdapter *collectionGridCellDataAdapter(NSString *cellReuseIdentifier, id data, NSInteger type) {    return [CollectionGridCellDataAdapter collectionGridCellDataAdapterWithCellReuseIdentifier:cellReuseIdentifier                                                                                          data:data cellType:type];}

////  CollectionGridCellDataAdapter.m//  CollectionView////  Created by YouXianMing on 16/7/14.//  Copyright © 2016年 YouXianMing. All rights reserved.//#import "CollectionGridCellDataAdapter.h"@implementation CollectionGridCellDataAdapter+ (instancetype)collectionGridCellDataAdapterWithCellReuseIdentifier:(NSString *)cellReuseIdentifier                                                                data:(id)data                                                            cellType:(NSInteger)cellType {    CollectionGridCellDataAdapter *adapter = [[self class] new];    adapter.cellReuseIdentifier            = cellReuseIdentifier;    adapter.data                           = data;    adapter.cellType                       = cellType;        return adapter;}@end