├── .gitignore ├── BRCollectionViewDemo.xcodeproj ├── project.pbxproj └── project.xcworkspace │ └── contents.xcworkspacedata ├── BRCollectionViewDemo ├── AppDelegate.h ├── AppDelegate.m ├── Assets.xcassets │ └── AppIcon.appiconset │ │ └── Contents.json ├── BRCirclePickerView │ ├── BRCircleLayout.h │ ├── BRCircleLayout.m │ ├── BRCirclePickerView.h │ └── BRCirclePickerView.m ├── Base.lproj │ ├── LaunchScreen.storyboard │ └── Main.storyboard ├── Info.plist ├── NSDate+BRAdd.h ├── NSDate+BRAdd.m ├── NSString+BRAdd.h ├── NSString+BRAdd.m ├── PrefixHeader.pch ├── ViewController.h ├── ViewController.m └── main.m ├── LICENSE └── README.md /.gitignore: -------------------------------------------------------------------------------- 1 | # Xcode 2 | # 3 | # gitignore contributors: remember to update Global/Xcode.gitignore, Objective-C.gitignore & Swift.gitignore 4 | 5 | ## Build generated 6 | build/ 7 | DerivedData/ 8 | 9 | ## Various settings 10 | *.pbxuser 11 | !default.pbxuser 12 | *.mode1v3 13 | !default.mode1v3 14 | *.mode2v3 15 | !default.mode2v3 16 | *.perspectivev3 17 | !default.perspectivev3 18 | xcuserdata/ 19 | 20 | ## Other 21 | *.moved-aside 22 | *.xccheckout 23 | *.xcscmblueprint 24 | 25 | ## Obj-C/Swift specific 26 | *.hmap 27 | *.ipa 28 | *.dSYM.zip 29 | *.dSYM 30 | 31 | # CocoaPods 32 | # 33 | # We recommend against adding the Pods directory to your .gitignore. However 34 | # you should judge for yourself, the pros and cons are mentioned at: 35 | # https://guides.cocoapods.org/using/using-cocoapods.html#should-i-check-the-pods-directory-into-source-control 36 | # 37 | # Pods/ 38 | 39 | # Carthage 40 | # 41 | # Add this line if you want to avoid checking in source code from Carthage dependencies. 42 | # Carthage/Checkouts 43 | 44 | Carthage/Build 45 | 46 | # fastlane 47 | # 48 | # It is recommended to not store the screenshots in the git repo. Instead, use fastlane to re-generate the 49 | # screenshots whenever they are needed. 50 | # For more information about the recommended setup visit: 51 | # https://docs.fastlane.tools/best-practices/source-control/#source-control 52 | 53 | fastlane/report.xml 54 | fastlane/Preview.html 55 | fastlane/screenshots 56 | fastlane/test_output 57 | 58 | # Code Injection 59 | # 60 | # After new code Injection tools there's a generated folder /iOSInjectionProject 61 | # https://github.com/johnno1962/injectionforxcode 62 | 63 | iOSInjectionProject/ 64 | -------------------------------------------------------------------------------- /BRCollectionViewDemo.xcodeproj/project.pbxproj: -------------------------------------------------------------------------------- 1 | // !$*UTF8*$! 2 | { 3 | archiveVersion = 1; 4 | classes = { 5 | }; 6 | objectVersion = 46; 7 | objects = { 8 | 9 | /* Begin PBXBuildFile section */ 10 | C5ACE5541F452C4D0069978B /* main.m in Sources */ = {isa = PBXBuildFile; fileRef = C5ACE5531F452C4D0069978B /* main.m */; 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343 | buildConfigurations = ( 344 | C5ACE5671F452C4D0069978B /* Debug */, 345 | C5ACE5681F452C4D0069978B /* Release */, 346 | ); 347 | defaultConfigurationIsVisible = 0; 348 | defaultConfigurationName = Release; 349 | }; 350 | /* End XCConfigurationList section */ 351 | }; 352 | rootObject = C5ACE5471F452C4D0069978B /* Project object */; 353 | } 354 | -------------------------------------------------------------------------------- /BRCollectionViewDemo.xcodeproj/project.xcworkspace/contents.xcworkspacedata: -------------------------------------------------------------------------------- 1 | 2 | 4 | 6 | 7 | 8 | -------------------------------------------------------------------------------- /BRCollectionViewDemo/AppDelegate.h: -------------------------------------------------------------------------------- 1 | // 2 | // AppDelegate.h 3 | // BRCollectionViewDemo 4 | // 5 | // Created by 任波 on 2017/8/17. 6 | // Copyright © 2017年 renb. All rights reserved. 7 | // 8 | 9 | #import 10 | 11 | @interface AppDelegate : UIResponder 12 | 13 | @property (strong, nonatomic) UIWindow *window; 14 | 15 | 16 | @end 17 | 18 | -------------------------------------------------------------------------------- /BRCollectionViewDemo/AppDelegate.m: -------------------------------------------------------------------------------- 1 | // 2 | // AppDelegate.m 3 | // BRCollectionViewDemo 4 | // 5 | // Created by 任波 on 2017/8/17. 6 | // Copyright © 2017年 renb. All rights reserved. 7 | // 8 | 9 | #import "AppDelegate.h" 10 | 11 | @interface AppDelegate () 12 | 13 | @end 14 | 15 | @implementation AppDelegate 16 | 17 | 18 | - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions { 19 | // Override point for customization after application launch. 20 | return YES; 21 | } 22 | 23 | 24 | - (void)applicationWillResignActive:(UIApplication *)application { 25 | // Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state. 26 | // Use this method to pause ongoing tasks, disable timers, and invalidate graphics rendering callbacks. Games should use this method to pause the game. 27 | } 28 | 29 | 30 | - (void)applicationDidEnterBackground:(UIApplication *)application { 31 | // Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later. 32 | // If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits. 33 | } 34 | 35 | 36 | - (void)applicationWillEnterForeground:(UIApplication *)application { 37 | // Called as part of the transition from the background to the active state; here you can undo many of the changes made on entering the background. 38 | } 39 | 40 | 41 | - (void)applicationDidBecomeActive:(UIApplication *)application { 42 | // Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface. 43 | } 44 | 45 | 46 | - (void)applicationWillTerminate:(UIApplication *)application { 47 | // Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:. 48 | } 49 | 50 | 51 | @end 52 | -------------------------------------------------------------------------------- /BRCollectionViewDemo/Assets.xcassets/AppIcon.appiconset/Contents.json: -------------------------------------------------------------------------------- 1 | { 2 | "images" : [ 3 | { 4 | "idiom" : "iphone", 5 | "size" : "29x29", 6 | "scale" : "2x" 7 | }, 8 | { 9 | "idiom" : "iphone", 10 | "size" : "29x29", 11 | "scale" : "3x" 12 | }, 13 | { 14 | "idiom" : "iphone", 15 | "size" : "40x40", 16 | "scale" : "2x" 17 | }, 18 | { 19 | "idiom" : "iphone", 20 | "size" : "40x40", 21 | "scale" : "3x" 22 | }, 23 | { 24 | "idiom" : "iphone", 25 | "size" : "60x60", 26 | "scale" : "2x" 27 | }, 28 | { 29 | "idiom" : "iphone", 30 | "size" : "60x60", 31 | "scale" : "3x" 32 | } 33 | ], 34 | "info" : { 35 | "version" : 1, 36 | "author" : "xcode" 37 | } 38 | } -------------------------------------------------------------------------------- /BRCollectionViewDemo/BRCirclePickerView/BRCircleLayout.h: -------------------------------------------------------------------------------- 1 | // 2 | // BRCircleLayout.h 3 | // AiBaoYun 4 | // 5 | // Created by 任波 on 2017/6/6. 6 | // Copyright © 2017年 aby. All rights reserved. 7 | // 8 | 9 | #import 10 | 11 | @interface BRCircleLayout : UICollectionViewLayout 12 | 13 | @end 14 | -------------------------------------------------------------------------------- /BRCollectionViewDemo/BRCirclePickerView/BRCircleLayout.m: -------------------------------------------------------------------------------- 1 | // 2 | // BRCircleLayout.m 3 | // AiBaoYun 4 | // 5 | // Created by 任波 on 2017/6/6. 6 | // Copyright © 2017年 aby. All rights reserved. 7 | // 8 | 9 | #import "BRCircleLayout.h" 10 | 11 | #define angular 60 12 | 13 | @interface BRCircleLayout () 14 | // item 的大小 15 | @property (nonatomic, assign) CGSize itemSize; 16 | // item 中心点围成的圆的半径 17 | @property (nonatomic, assign) NSInteger radius; 18 | // item 的个数 19 | @property (nonatomic, assign) NSInteger itemCount; 20 | 21 | @end 22 | 23 | @implementation BRCircleLayout 24 | 25 | /** 用来做布局的初始化操作 */ 26 | - (void)prepareLayout { 27 | [super prepareLayout]; 28 | // 初始化布局 29 | [self setupLayout]; 30 | } 31 | 32 | // 初始化布局 33 | - (void)setupLayout { 34 | self.itemSize = CGSizeMake(100 * kScaleFit, 100 * kScaleFit); 35 | self.radius = (self.collectionView.frame.size.width - self.itemSize.width) / 2; 36 | self.itemCount = [self.collectionView numberOfItemsInSection:0]; 37 | } 38 | 39 | // 设置内容区域的大小 40 | - (CGSize)collectionViewContentSize { 41 | return CGSizeMake(self.collectionView.bounds.size.width + (self.itemCount - 180 / angular) * self.collectionView.bounds.size.width, self.collectionView.bounds.size.height); 42 | } 43 | 44 | /** 这个方法的返回值是一个数组,数组里面存放着rect范围内所有元素的布局排布 */ 45 | - (NSArray *)layoutAttributesForElementsInRect:(CGRect)rect { 46 | NSMutableArray *attributes = [[NSMutableArray alloc] init]; 47 | for (int i = 0; i < self.itemCount; i++) { 48 | UICollectionViewLayoutAttributes *attribute = [self layoutAttributesForItemAtIndexPath:[NSIndexPath indexPathForItem:i inSection:0]]; 49 | if (CGRectContainsRect(rect, attribute.frame) || CGRectIntersectsRect(rect, attribute.frame)) { 50 | [attributes addObject:attribute]; 51 | } 52 | } 53 | return attributes; 54 | } 55 | 56 | - (UICollectionViewLayoutAttributes *)layoutAttributesForItemAtIndexPath:(NSIndexPath *)indexPath { 57 | CGFloat visibleItemIndex = indexPath.item - self.collectionView.contentOffset.x / (self.collectionView.bounds.size.width * 1.0f); 58 | UICollectionViewLayoutAttributes *attribute = [UICollectionViewLayoutAttributes layoutAttributesForCellWithIndexPath:indexPath]; 59 | attribute.size = self.itemSize; 60 | attribute.hidden = YES; 61 | attribute.center = CGPointMake(self.collectionView.contentOffset.x + self.collectionView.frame.size.width / 2, self.collectionView.frame.size.height / 2); 62 | CGFloat angle = visibleItemIndex * (angular / 180.0 * M_PI); 63 | //NSLog(@"angle[%ld] = %f", indexPath.item, angle); 64 | CGAffineTransform transform = CGAffineTransformIdentity; 65 | if (angle < M_PI && angle > - M_PI / 3) { 66 | if (angle > 2 * M_PI / 3 && angle < M_PI) { 67 | attribute.alpha = (M_PI - angle) / (M_PI / 3); 68 | attribute.hidden = NO; 69 | } else if (angle > - M_PI / 3 && angle < 0) { 70 | attribute.alpha = 1 - (0 - angle) / (M_PI / 3); 71 | attribute.hidden = NO; 72 | } else { 73 | attribute.alpha = 1; 74 | attribute.hidden = NO; 75 | } 76 | // 1.位移移动，平移 (CGFloat tx, CGFloat ty), 起始位置 x 会加上tx , y 会加上 ty 77 | CGFloat tx = -(self.radius - 18 * kScaleFit) * cos(angle + M_PI / 6); 78 | CGFloat ty = (self.radius - 18 * kScaleFit) * sin(angle + M_PI / 6); 79 | transform = CGAffineTransformMakeTranslation(tx, ty); 80 | // 2.设置每个item相对于自己中心点旋转的角度 81 | transform = CGAffineTransformRotate(transform, -(angle - M_PI / 3)); 82 | } 83 | 84 | attribute.transform = transform; 85 | 86 | return attribute; 87 | } 88 | 89 | // 返回yes，当collectionView的显示范围发生改变的时候，就会重新刷新布局 90 | // 一旦重新刷新布局，就会重新调用下面的方法：prepareLayout、layoutAttributesForElementsInRect:方法 91 | - (BOOL)shouldInvalidateLayoutForBoundsChange:(CGRect)newBounds { 92 | return YES; 93 | } 94 | 95 | @end 96 | -------------------------------------------------------------------------------- /BRCollectionViewDemo/BRCirclePickerView/BRCirclePickerView.h: -------------------------------------------------------------------------------- 1 | // 2 | // BRCirclePickerView.h 3 | // AiBaoYun 4 | // 5 | // Created by 任波 on 2017/6/6. 6 | // Copyright © 2017年 aby. All rights reserved. 7 | // 8 | 9 | #import 10 | 11 | typedef void(^BRDidTapBlock)(); 12 | typedef void(^BRDidScrollEndBlock)(NSString *currentValue); 13 | 14 | @interface BRCirclePickerView : UIView 15 | /** 圆盘labelText数组 */ 16 | @property (nonatomic, strong) NSArray *circleTextArr; 17 | /** 当前日期字符串 */ 18 | @property (nonatomic, strong) NSString *nowDateString; 19 | /** 圆盘中心label文本 */ 20 | @property (nonatomic, strong) NSMutableAttributedString *centerText; 21 | /** 当前怀孕周数对应的索引 */ 22 | @property (nonatomic, assign) NSInteger currentSelIndex; 23 | /** 当前怀孕几率 */ 24 | @property (nonatomic, assign) CGFloat currentProbability; 25 | 26 | /** 中心label点击事件的回调 */ 27 | @property (nonatomic, copy) BRDidTapBlock didTapCenterLabelBlock; 28 | /** 滚动停止后的回调 */ 29 | @property (nonatomic, copy) BRDidScrollEndBlock didScrollEndBlock; 30 | 31 | /** 初始化方法 */ 32 | - (instancetype)initWithFrame:(CGRect)frame homePageFlag:(NSInteger)flag; 33 | 34 | /** 刷新初始化转盘数据 */ 35 | - (void)reloadDataForInit; 36 | 37 | /** 刷新滚动结束转盘数据 */ 38 | - (void)reloadDataForSrcollEnd; 39 | 40 | @end 41 | -------------------------------------------------------------------------------- /BRCollectionViewDemo/BRCirclePickerView/BRCirclePickerView.m: -------------------------------------------------------------------------------- 1 | // 2 | // BRCirclePickerView.m 3 | // AiBaoYun 4 | // 5 | // Created by 任波 on 2017/6/6. 6 | // Copyright © 2017年 aby. All rights reserved. 7 | // 8 | 9 | #import "BRCirclePickerView.h" 10 | #import "BRCircleLayout.h" 11 | #import "NSDate+BRAdd.h" 12 | #import "NSString+BRAdd.h" 13 | 14 | /** 圆盘弧形文本个数 */ 15 | #define itemCount 6 16 | /** 圆盘半径 */ 17 | #define RADIUS (self.bounds.size.width / 2) 18 | /** 弧度转角度 */ 19 | #define RADIAN_TO_ANGLE(__VALUE__) ((__VALUE__) * 180 / M_PI) 20 | /** 角度转弧度 */ 21 | #define ANGLE_TO_RADIAN(__VALUE__) ((__VALUE__) * M_PI / 180.0) 22 | 23 | @interface BRCirclePickerView () 24 | { 25 | NSInteger _identityFlag; // 身份标识(1:备孕期，2:孕产期，3:育儿期) 26 | NSInteger _lastSelIndex; // 上一个选中的index 27 | } 28 | /** 底部背景图层 */ 29 | @property (nonatomic, strong) UIImageView *bgImageView; 30 | /** 底部转动图层 */ 31 | @property (nonatomic, strong) UIImageView *rotateImageView; 32 | /** 圆盘滚动视图 */ 33 | @property (nonatomic, strong) UICollectionView *collectionView; 34 | /** 圆盘中心背景图片 */ 35 | @property (nonatomic, strong) UIImageView *centerImageView; 36 | /** 圆盘中心Label */ 37 | @property (nonatomic, strong) UILabel *centerLabel; 38 | 39 | /** 日期 */ 40 | @property (nonatomic, strong) UILabel *dateLabel; 41 | 42 | @end 43 | 44 | @implementation BRCirclePickerView 45 | 46 | - (instancetype)initWithFrame:(CGRect)frame homePageFlag:(NSInteger)flag { 47 | if (self = [super initWithFrame:frame]) { 48 | _identityFlag = flag; 49 | 50 | [self setupUI]; 51 | } 52 | return self; 53 | } 54 | 55 | #pragma mark - 添加子视图 56 | - (void)setupUI { 57 | self.bgImageView.hidden = NO; 58 | self.rotateImageView.hidden = NO; 59 | self.collectionView.hidden = NO; 60 | self.centerImageView.hidden = NO; 61 | self.dateLabel.hidden = NO; 62 | } 63 | 64 | #pragma mark - 刷新数据 65 | - (void)reloadDataForInit { 66 | // 刷新collectionView 67 | [self.collectionView reloadData]; 68 | // 加载当前日期label 69 | self.dateLabel.text = self.nowDateString; 70 | // 刷新centerLabel的数据 71 | self.centerLabel.attributedText = self.centerText; 72 | 73 | // 默认滚动 74 | [self scrollToItemAtIndex:self.currentSelIndex animated:YES]; 75 | } 76 | 77 | - (void)reloadDataForSrcollEnd { 78 | if (_identityFlag == 1) { 79 | // 刷新centerLabel的数据 80 | self.centerLabel.attributedText = self.centerText; 81 | } 82 | } 83 | 84 | #pragma mark - 懒加载 子视图 85 | - (UIImageView *)bgImageView { 86 | if (!_bgImageView) { 87 | _bgImageView = [[UIImageView alloc]initWithFrame:CGRectMake(5 * kScaleFit, 5 * kScaleFit, 310 * kScaleFit, 310 * kScaleFit)]; 88 | _bgImageView.backgroundColor = [UIColor clearColor]; 89 | NSString *imageName = [NSString stringWithFormat:@"home%ld_disc_bottom_shadow", _identityFlag]; 90 | _bgImageView.image = [UIImage imageNamed:imageName]; 91 | [self addSubview:_bgImageView]; 92 | } 93 | return _bgImageView; 94 | } 95 | 96 | - (UIImageView *)rotateImageView { 97 | if (!_rotateImageView) { 98 | _rotateImageView = [[UIImageView alloc]initWithFrame:CGRectMake(5 * kScaleFit, 5 * kScaleFit, 310 * kScaleFit, 310 * kScaleFit)]; 99 | _rotateImageView.backgroundColor = [UIColor clearColor]; 100 | NSString *imageName = [NSString stringWithFormat:@"home%ld_disc_bottom", _identityFlag]; 101 | _rotateImageView.image = [UIImage imageNamed:imageName]; 102 | [self addSubview:_rotateImageView]; 103 | } 104 | return _rotateImageView; 105 | } 106 | 107 | - (UICollectionView *)collectionView { 108 | if (!_collectionView) { 109 | BRCircleLayout *layout = [[BRCircleLayout alloc]init]; 110 | _collectionView = [[UICollectionView alloc]initWithFrame:self.bounds collectionViewLayout:layout]; 111 | _collectionView.backgroundColor = [UIColor clearColor]; 112 | // 开启分页 113 | _collectionView.pagingEnabled = YES; 114 | // 隐藏水平滚动条 115 | _collectionView.showsHorizontalScrollIndicator = NO; 116 | _collectionView.delegate = self; 117 | _collectionView.dataSource = self; 118 | [_collectionView registerClass:[UICollectionViewCell class] forCellWithReuseIdentifier:@"cellID"]; 119 | [self addSubview:_collectionView]; 120 | } 121 | return _collectionView; 122 | } 123 | 124 | - (UIImageView *)centerImageView { 125 | if (!_centerImageView) { 126 | _centerImageView = [[UIImageView alloc]initWithFrame:CGRectMake(0, 0, 162 * kScaleFit, 162 * kScaleFit)]; 127 | _centerImageView.center = self.collectionView.center; 128 | _centerImageView.backgroundColor = [UIColor clearColor]; 129 | NSString *imageName = [NSString stringWithFormat:@"home%ld_disc_center", _identityFlag]; 130 | _centerImageView.image = [UIImage imageNamed:imageName]; 131 | [self addSubview:_centerImageView]; 132 | } 133 | return _centerImageView; 134 | } 135 | 136 | - (UILabel *)centerLabel { 137 | if (!_centerLabel) { 138 | _centerLabel = [[UILabel alloc]initWithFrame:CGRectMake(0, 0, 80 * kScaleFit, 80 * kScaleFit)]; 139 | _centerLabel.center = self.center; 140 | _centerLabel.backgroundColor = [UIColor clearColor]; 141 | _centerLabel.textAlignment = NSTextAlignmentCenter; 142 | _centerLabel.textColor = [UIColor whiteColor]; 143 | _centerLabel.font = [UIFont boldSystemFontOfSize:10.0f * kScaleFit]; 144 | _centerLabel.numberOfLines = 0; 145 | _centerLabel.layer.cornerRadius = 40.0f * kScaleFit; 146 | _centerLabel.layer.masksToBounds = YES; 147 | [self addSubview:_centerLabel]; 148 | _centerLabel.attributedText = self.centerText; 149 | // label 点击事件 150 | _centerLabel.userInteractionEnabled = YES; 151 | UITapGestureRecognizer *myTap = [[UITapGestureRecognizer alloc]initWithTarget:self action:@selector(didTapCenterLabel)]; 152 | [_centerLabel addGestureRecognizer:myTap]; 153 | } 154 | return _centerLabel; 155 | } 156 | 157 | - (void)didTapCenterLabel { 158 | // 执行外界传来的block 159 | self.didTapCenterLabelBlock(); 160 | } 161 | 162 | - (UILabel *)dateLabel { 163 | if (!_dateLabel) { 164 | _dateLabel = [[UILabel alloc]initWithFrame:CGRectMake(0, 0, 100 * kScaleFit, 20 * kScaleFit)]; 165 | _dateLabel.center = CGPointMake(self.center.x, self.center.y + 100 * kScaleFit); 166 | _dateLabel.backgroundColor = [UIColor clearColor]; 167 | _dateLabel.font = [UIFont systemFontOfSize:14.0f * kScaleFit]; 168 | _dateLabel.textColor = [UIColor whiteColor]; 169 | _dateLabel.textAlignment = NSTextAlignmentCenter; 170 | _dateLabel.text = self.nowDateString; 171 | [self addSubview:_dateLabel]; 172 | } 173 | return _dateLabel; 174 | } 175 | 176 | - (NSInteger)numberOfSectionsInCollectionView:(UICollectionView *)collectionView { 177 | return 1; 178 | } 179 | 180 | - (NSInteger)collectionView:(UICollectionView *)collectionView numberOfItemsInSection:(NSInteger)section { 181 | return self.circleTextArr.count; 182 | } 183 | 184 | - (UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath { 185 | UICollectionViewCell * cell = [collectionView dequeueReusableCellWithReuseIdentifier:@"cellID" forIndexPath:indexPath]; 186 | cell.backgroundColor = [UIColor clearColor]; 187 | 188 | for (UIView *view in cell.contentView.subviews) { 189 | [view removeFromSuperview]; 190 | } 191 | 192 | if (self.circleTextArr.count > 0) { 193 | UILabel *arcTextLabel = [[UILabel alloc]initWithFrame:CGRectMake(0, 0, 100 * kScaleFit, 100 * kScaleFit)]; 194 | arcTextLabel.backgroundColor = [UIColor clearColor]; 195 | arcTextLabel.font = [UIFont systemFontOfSize:14.0f * kScaleFit]; 196 | arcTextLabel.textColor = [UIColor whiteColor]; 197 | arcTextLabel.textAlignment = NSTextAlignmentCenter; 198 | arcTextLabel.text = self.circleTextArr[indexPath.item]; 199 | [cell.contentView addSubview:arcTextLabel]; 200 | } 201 | 202 | return cell; 203 | } 204 | 205 | 206 | - (void)collectionView:(UICollectionView *)collectionView didSelectItemAtIndexPath:(NSIndexPath *)indexPath { 207 | NSLog(@"点击了：%ld, 当前索引：%ld", indexPath.item, self.currentSelIndex); 208 | if (indexPath.item > 0 && indexPath.item < self.circleTextArr.count - 1) { 209 | _lastSelIndex = self.currentSelIndex; 210 | if (indexPath.item <= self.currentSelIndex - 1) { 211 | NSLog(@"上一页"); 212 | // 滚动到新位置 213 | [self scrollToItemAtIndex:indexPath.item animated:YES]; 214 | self.currentSelIndex = indexPath.item; 215 | [self handlerReloadDidScrollEnd]; 216 | } 217 | if (indexPath.item >= self.currentSelIndex + 1) { 218 | NSLog(@"下一页"); 219 | [self scrollToItemAtIndex:indexPath.item animated:YES]; 220 | self.currentSelIndex = indexPath.item; 221 | [self handlerReloadDidScrollEnd]; 222 | } 223 | } 224 | } 225 | 226 | #pragma mark - 滚动到指定位置 227 | /** 滚动到指定位置 */ 228 | - (void)scrollToItemAtIndex:(NSInteger)index animated:(BOOL)animated { 229 | [self.collectionView setContentOffset:CGPointMake(self.collectionView.bounds.size.width * (index - 1), 0) animated:animated]; 230 | } 231 | 232 | #pragma mark - UIScrollViewDelegate 233 | // 滚动就会触发 这里对滑动的contentOffset进行监控，实现循环滚动 234 | - (void)scrollViewDidScroll:(UIScrollView *)scrollView { 235 | CGFloat offsetX = scrollView.contentOffset.x; 236 | // 旋转的弧度 237 | CGFloat radianOffset = offsetX * (M_PI / itemCount) / RADIUS; 238 | self.rotateImageView.transform = CGAffineTransformMakeRotation(radianOffset); 239 | // 旋转的角度 240 | //CGFloat angleOffset = RADIAN_TO_ANGLE(radianOffset); 241 | //NSLog(@"滚动进行中... offSetX:%f, 旋转角度:%f", offsetX, angleOffset); 242 | 243 | } 244 | 245 | /** 结束减速时触发（滚动停止） */ 246 | - (void)scrollViewDidEndDecelerating:(UIScrollView *)scrollView { 247 | _lastSelIndex = self.currentSelIndex; 248 | NSInteger index = roundf(scrollView.contentOffset.x / self.collectionView.bounds.size.width); 249 | self.currentSelIndex = index + 1; 250 | [self handlerReloadDidScrollEnd]; 251 | } 252 | 253 | /** 回调，执行外部刷新 */ 254 | - (void)handlerReloadDidScrollEnd { 255 | NSLog(@"currentSelIndex = %ld， lastSelIndex = %ld", self.currentSelIndex, _lastSelIndex); 256 | NSLog(@"改变索引：%ld", self.currentSelIndex - _lastSelIndex); 257 | // 执行回调 258 | if (self.didScrollEndBlock) { 259 | if (_identityFlag == 1) { 260 | self.nowDateString = [NSDate date:self.nowDateString formatter:@"yyyy-MM-dd" addDays:self.currentSelIndex - _lastSelIndex]; 261 | self.dateLabel.text = self.nowDateString; 262 | // 获取当前日期 263 | NSLog(@"获取当前日期：%@", self.nowDateString); 264 | self.didScrollEndBlock(self.nowDateString); 265 | } 266 | if (_identityFlag == 2) { 267 | self.nowDateString = [NSDate date:self.nowDateString formatter:@"M月d日" addDays:self.currentSelIndex - _lastSelIndex]; 268 | self.dateLabel.text = self.nowDateString; 269 | // 获取当前怀孕周 270 | NSString *weekStr = [self.circleTextArr objectAtIndex:self.currentSelIndex]; 271 | if ([weekStr containsString:@"周"]) { 272 | NSString *tempStr = [weekStr componentsSeparatedByString:@"周"][0]; 273 | weekStr = [NSString stringWithFormat:@"%ld", [tempStr IntegerInString]]; 274 | } else { 275 | weekStr = @"0"; 276 | } 277 | NSLog(@"获取当前孕周：%@", weekStr); 278 | self.didScrollEndBlock(weekStr); 279 | } 280 | if (_identityFlag == 3) { 281 | self.nowDateString = [NSDate date:self.nowDateString formatter:@"M月d日" addDays:self.currentSelIndex - _lastSelIndex]; 282 | self.dateLabel.text = self.nowDateString; 283 | // 获取宝宝出生天数 284 | NSString *dayStr = [self.circleTextArr objectAtIndex:self.currentSelIndex]; 285 | dayStr = [NSString stringWithFormat:@"%ld", [dayStr IntegerInString]]; 286 | NSLog(@"宝宝出生天数：%@", dayStr); 287 | self.didScrollEndBlock(dayStr); 288 | } 289 | } 290 | } 291 | 292 | - (NSArray *)circleTextArr { 293 | if (!_circleTextArr) { 294 | _circleTextArr = [NSArray array]; 295 | } 296 | return _circleTextArr; 297 | } 298 | 299 | @end 300 | -------------------------------------------------------------------------------- /BRCollectionViewDemo/Base.lproj/LaunchScreen.storyboard: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | -------------------------------------------------------------------------------- /BRCollectionViewDemo/Base.lproj/Main.storyboard: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | -------------------------------------------------------------------------------- /BRCollectionViewDemo/Info.plist: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | CFBundleDevelopmentRegion 6 | en 7 | CFBundleExecutable 8 | $(EXECUTABLE_NAME) 9 | CFBundleIdentifier 10 | $(PRODUCT_BUNDLE_IDENTIFIER) 11 | CFBundleInfoDictionaryVersion 12 | 6.0 13 | CFBundleName 14 | $(PRODUCT_NAME) 15 | CFBundlePackageType 16 | APPL 17 | CFBundleShortVersionString 18 | 1.0 19 | CFBundleVersion 20 | 1 21 | LSRequiresIPhoneOS 22 | 23 | UILaunchStoryboardName 24 | LaunchScreen 25 | UIMainStoryboardFile 26 | Main 27 | UIRequiredDeviceCapabilities 28 | 29 | armv7 30 | 31 | UISupportedInterfaceOrientations 32 | 33 | UIInterfaceOrientationPortrait 34 | UIInterfaceOrientationLandscapeLeft 35 | UIInterfaceOrientationLandscapeRight 36 | 37 | 38 | 39 | -------------------------------------------------------------------------------- /BRCollectionViewDemo/NSDate+BRAdd.h: -------------------------------------------------------------------------------- 1 | // 2 | // NSData+BRAdd.h 3 | // MyBaseProject 4 | // 5 | // Created by 任波 on 2017/5/25. 6 | // Copyright © 2017年 apple. All rights reserved. 7 | // 8 | 9 | #import 10 | 11 | @interface NSDate (BRAdd) 12 | 13 | /** 获取系统当前的时间戳，即当前时间距1970的秒数（以毫秒为单位） */ 14 | + (NSString *)currentTimestamp; 15 | 16 | 17 | /** 获取当前的时间 */ 18 | + (NSString *)currentDateString; 19 | 20 | 21 | /** 22 | * 按指定格式获取当前的时间 23 | * 24 | * @param formatterStr 设置格式：yyyy-MM-dd HH:mm:ss 25 | */ 26 | + (NSString *)currentDateStringWithFormat:(NSString *)formatterStr; 27 | 28 | 29 | /** 30 | * 计算两个日期之间的天数 31 | * 32 | * @param beginDateString 设置格式：yyyy-MM-dd 33 | * @param endDateString 设置格式：yyyy-MM-dd 34 | */ 35 | + (NSInteger)deltaDaysFrombeginDate:(NSString *)beginDateString endDate:(NSString *)endDateString; 36 | 37 | /** 38 | * 返回指定时间差值的日期字符串 39 | * 40 | * @param delta 时间差值 41 | * @return 日期字符串，格式：yyyy-MM-dd HH:mm:ss 42 | */ 43 | + (NSString *)dateStringWithDelta:(NSTimeInterval)delta; 44 | 45 | 46 | /** 47 | * 指定时间加指定天数 48 | * 49 | * @param dateString 日期 50 | * @param days 天数 51 | * @return 日期字符串，格式：yyyy-MM-dd 52 | */ 53 | + (NSString *)date:(NSString *)dateString formatter:(NSString *)formatterStr addDays:(NSInteger)days; 54 | 55 | 56 | /** 57 | * 返回日期格式字符串 58 | * 59 | * @param dateStr 需要转换的时间点 60 | * @return 日期字符串 61 | * 返回具体格式如下： 62 | * - 刚刚(一分钟内) 63 | * - X分钟前(一小时内) 64 | * - X小时前(当天) 65 | * - MM-dd HH:mm(一年内) 66 | * - yyyy-MM-dd HH:mm(更早期) 67 | */ 68 | + (NSString *)dateDescriptionWithTargetDate:(NSString *)dateStr andTargetDateFormat:(NSString *)dateFormatStr; 69 | 70 | @end 71 | -------------------------------------------------------------------------------- /BRCollectionViewDemo/NSDate+BRAdd.m: -------------------------------------------------------------------------------- 1 | // 2 | // NSData+BRAdd.m 3 | // MyBaseProject 4 | // 5 | // Created by 任波 on 2017/5/25. 6 | // Copyright © 2017年 apple. All rights reserved. 7 | // 8 | 9 | #import "NSDate+BRAdd.h" 10 | 11 | @implementation NSDate (BRAdd) 12 | 13 | // yyyy-MM-dd hh:mm:ss 12小时制 14 | // yyyy-MM-dd HH:mm:ss 24小时制 15 | // yyyy-MM-dd HH:mm:ss.SSS (SSS毫秒) 16 | 17 | #pragma mark - 获取系统当前的时间戳，即当前时间距1970的秒数（以毫秒为单位） 18 | + (NSString *)currentTimestamp { 19 | NSDate *date = [NSDate dateWithTimeIntervalSinceNow:0]; 20 | /** 当前时间距1970的秒数。*1000 是精确到毫秒，不乘就是精确到秒 */ 21 | NSTimeInterval interval = [date timeIntervalSince1970] * 1000; 22 | NSString *timeString = [NSString stringWithFormat:@"%0.f", interval]; 23 | 24 | return timeString; 25 | } 26 | 27 | #pragma mark - 获取当前的时间 28 | + (NSString *)currentDateString { 29 | return [self currentDateStringWithFormat:@"yyyy-MM-dd HH:mm:ss"]; 30 | } 31 | 32 | #pragma mark - 按指定格式获取当前的时间 33 | + (NSString *)currentDateStringWithFormat:(NSString *)formatterStr { 34 | // 获取系统当前时间 35 | NSDate *currentDate = [NSDate date]; 36 | // 用于格式化NSDate对象 37 | NSDateFormatter *formatter = [[NSDateFormatter alloc] init]; 38 | // 设置格式：yyyy-MM-dd HH:mm:ss 39 | formatter.dateFormat = formatterStr; 40 | // 将 NSDate 按 formatter格式 转成 NSString 41 | NSString *currentDateStr = [formatter stringFromDate:currentDate]; 42 | // 输出currentDateStr 43 | return currentDateStr; 44 | } 45 | 46 | #pragma mark - 返回指定时间差值的日期字符串 47 | + (NSString *)dateStringWithDelta:(NSTimeInterval)delta { 48 | NSDate *date = [NSDate dateWithTimeIntervalSinceNow:delta]; 49 | NSDateFormatter *formatter = [[NSDateFormatter alloc] init]; 50 | formatter.dateFormat = @"yyyy-MM-dd HH:mm:ss"; 51 | return [formatter stringFromDate:date]; 52 | } 53 | 54 | //计算两个日期之间的天数 55 | + (NSInteger)deltaDaysFrombeginDate:(NSString *)beginDateString endDate:(NSString *)endDateString { 56 | //创建日期格式化对象 57 | NSDateFormatter *dateFormatter=[[NSDateFormatter alloc] init]; 58 | dateFormatter.dateFormat = @"yyyy-MM-dd"; 59 | NSDate *beginDate = [dateFormatter dateFromString:beginDateString]; 60 | NSDate *endDate = [dateFormatter dateFromString:endDateString]; 61 | //取两个日期对象的时间间隔 62 | NSTimeInterval deltaTime = [endDate timeIntervalSinceDate:beginDate]; 63 | NSInteger days = (NSInteger)deltaTime / (24 * 60 * 60); 64 | //NSInteger hours = ((NSInteger)deltaTime - days * 24 * 60 * 60) / (60 * 60); 65 | //NSInteger minute = ((NSInteger)deltaTime - days * 24 * 60 * 60 - hours * 60 * 60) / 60; 66 | //NSInteger second = (NSInteger)deltaTime - days * 24 * 60 * 60 - hours * 60 * 60 - minute * 60; 67 | 68 | return days; 69 | } 70 | 71 | #pragma mark - 返回 指定时间加指定天数 结果日期字符串 72 | + (NSString *)date:(NSString *)dateString formatter:(NSString *)formatterStr addDays:(NSInteger)days { 73 | NSDateFormatter *dateFormatter = [[NSDateFormatter alloc]init]; 74 | dateFormatter.dateFormat = formatterStr; //yyyy-MM-dd 75 | NSDate *myDate = [dateFormatter dateFromString:dateString]; 76 | NSDate *newDate = [myDate dateByAddingTimeInterval:60 * 60 * 24 * days]; 77 | //NSDate *newDate = [NSDate dateWithTimeInterval:60 * 60 * 24 * days sinceDate:myDate]; 78 | NSString *newDateString = [dateFormatter stringFromDate:newDate]; 79 | NSLog(@"%@", newDateString); 80 | return newDateString; 81 | } 82 | 83 | #pragma mark - 返回日期格式字符串 @"2016-10-16 14:30:30" @"yyyy-MM-dd HH:mm:ss" 84 | // 注意：一个日期字符串必须 与 它相应的日期格式对应，这个才能被系统识别为日期 85 | + (NSString *)dateDescriptionWithTargetDate:(NSString *)dateStr andTargetDateFormat:(NSString *)dateFormatStr { 86 | // 1.获取当前时间 87 | NSDate *currentDate = [NSDate date]; 88 | // 2.目标时间 89 | NSDateFormatter *formatter = [[NSDateFormatter alloc] init]; 90 | formatter.dateFormat = dateFormatStr; 91 | NSDate *targetDate = [formatter dateFromString:dateStr]; 92 | 93 | NSCalendar *calendar = [NSCalendar currentCalendar]; 94 | NSDateFormatter *returnFormatter = [[NSDateFormatter alloc] init]; 95 | if ([calendar isDate:targetDate equalToDate:currentDate toUnitGranularity:NSCalendarUnitYear]) { 96 | if ([calendar isDateInToday:targetDate]) { 97 | NSDateComponents *components = [calendar components:NSCalendarUnitMinute | NSCalendarUnitHour fromDate:targetDate toDate:currentDate options:0]; 98 | if (components.hour == 0) { 99 | if (components.minute == 0) { 100 | return @"刚刚"; 101 | } else { 102 | return [NSString stringWithFormat:@"%ld分钟前", (long)components.minute]; 103 | } 104 | } else { 105 | return [NSString stringWithFormat:@"%ld小时前", (long)components.hour]; 106 | } 107 | } else if ([calendar isDateInYesterday:targetDate]) { 108 | return @"昨天"; 109 | } else { 110 | returnFormatter.dateFormat = @"M-d"; 111 | return [returnFormatter stringFromDate:targetDate]; 112 | } 113 | } else { 114 | returnFormatter.dateFormat = @"yyyy-M-d"; 115 | return [returnFormatter stringFromDate:targetDate]; 116 | } 117 | return nil; 118 | } 119 | 120 | 121 | @end 122 | -------------------------------------------------------------------------------- /BRCollectionViewDemo/NSString+BRAdd.h: -------------------------------------------------------------------------------- 1 | // 2 | // NSString+BRAdd.h 3 | // BRCollectionViewDemo 4 | // 5 | // Created by 任波 on 2018/1/4. 6 | // Copyright © 2018年 renb. All rights reserved. 7 | // 8 | 9 | #import 10 | 11 | @interface NSString (BRAdd) 12 | 13 | /** 获取字符串中的数字 */ 14 | - (NSInteger)IntegerInString; 15 | 16 | @end 17 | -------------------------------------------------------------------------------- /BRCollectionViewDemo/NSString+BRAdd.m: -------------------------------------------------------------------------------- 1 | // 2 | // NSString+BRAdd.m 3 | // BRCollectionViewDemo 4 | // 5 | // Created by 任波 on 2018/1/4. 6 | // Copyright © 2018年 renb. All rights reserved. 7 | // 8 | 9 | #import "NSString+BRAdd.h" 10 | 11 | @implementation NSString (BRAdd) 12 | 13 | #pragma mark - 扫瞄器（NSScanner），获取字符串中的数字 14 | - (NSInteger)IntegerInString { 15 | NSScanner *scanner = [NSScanner scannerWithString:self]; 16 | [scanner scanUpToCharactersFromSet:[NSCharacterSet decimalDigitCharacterSet] intoString:nil]; 17 | int number; 18 | [scanner scanInt:&number]; 19 | return number; 20 | } 21 | 22 | @end 23 | -------------------------------------------------------------------------------- /BRCollectionViewDemo/PrefixHeader.pch: -------------------------------------------------------------------------------- 1 | // 2 | // PrefixHeader.pch 3 | // BRCollectionViewDemo 4 | // 5 | // Created by 任波 on 2017/8/17. 6 | // Copyright © 2017年 renb. All rights reserved. 7 | // 8 | 9 | #ifndef PrefixHeader_pch 10 | #define PrefixHeader_pch 11 | 12 | // Include any system framework and library headers here that should be included in all compilation units. 13 | // You will also need to set the Prefix Header build setting of one or more of your targets to reference this file. 14 | 15 | /// 屏幕大小、宽、高 16 | #define SCREEN_BOUNDS [UIScreen mainScreen].bounds 17 | #define SCREEN_WIDTH [UIScreen mainScreen].bounds.size.width 18 | #define SCREEN_HEIGHT [UIScreen mainScreen].bounds.size.height 19 | 20 | // 等比例适配系数 21 | #define kScaleFit (SCREEN_WIDTH / 375.0f) 22 | 23 | /// RGB颜色(10进制) 24 | #define RGB(r, g, b, a) [UIColor colorWithRed:(r) / 255.0 green:(g) / 255.0 blue:(b) / 255.0 alpha:(a)] 25 | 26 | /// RGB颜色(16进制) 27 | #define RGB_HEX(rgbValue, a) \ 28 | [UIColor colorWithRed:((CGFloat)((rgbValue & 0xFF0000) >> 16)) / 255.0 \ 29 | green:((CGFloat)((rgbValue & 0xFF00) >> 8)) / 255.0 \ 30 | blue:((CGFloat)(rgbValue & 0xFF)) / 255.0 alpha:(a)] 31 | 32 | #endif /* PrefixHeader_pch */ 33 | -------------------------------------------------------------------------------- /BRCollectionViewDemo/ViewController.h: -------------------------------------------------------------------------------- 1 | // 2 | // ViewController.h 3 | // BRCollectionViewDemo 4 | // 5 | // Created by 任波 on 2017/8/17. 6 | // Copyright © 2017年 renb. All rights reserved. 7 | // 8 | 9 | #import 10 | 11 | @interface ViewController : UIViewController 12 | 13 | 14 | @end 15 | 16 | -------------------------------------------------------------------------------- /BRCollectionViewDemo/ViewController.m: -------------------------------------------------------------------------------- 1 | // 2 | // ViewController.m 3 | // BRCollectionViewDemo 4 | // 5 | // Created by 任波 on 2017/8/17. 6 | // Copyright © 2017年 renb. All rights reserved. 7 | // 8 | 9 | #import "ViewController.h" 10 | 11 | @interface ViewController () 12 | 13 | @end 14 | 15 | @implementation ViewController 16 | 17 | - (void)viewDidLoad { 18 | [super viewDidLoad]; 19 | // Do any additional setup after loading the view, typically from a nib. 20 | } 21 | 22 | 23 | - (void)didReceiveMemoryWarning { 24 | [super didReceiveMemoryWarning]; 25 | // Dispose of any resources that can be recreated. 26 | } 27 | 28 | 29 | @end 30 | -------------------------------------------------------------------------------- /BRCollectionViewDemo/main.m: -------------------------------------------------------------------------------- 1 | // 2 | // main.m 3 | // BRCollectionViewDemo 4 | // 5 | // Created by 任波 on 2017/8/17. 6 | // Copyright © 2017年 renb. All rights reserved. 7 | // 8 | 9 | #import 10 | #import "AppDelegate.h" 11 | 12 | int main(int argc, char * argv[]) { 13 | @autoreleasepool { 14 | return UIApplicationMain(argc, argv, nil, NSStringFromClass([AppDelegate class])); 15 | } 16 | } 17 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | Apache License 2 | Version 2.0, January 2004 3 | http://www.apache.org/licenses/ 4 | 5 | TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 6 | 7 | 1. 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