#import <Foundation/Foundation.h>#import <photos/photos.h>@interface FWPhotoAlbums : NSObject@property (nonatomic, copy) NSString *albumName; //相册名字@property (nonatomic, assign) NSUInteger albumImageCount; //该相册内相片数量@property (nonatomic, strong) PHAsset *firstImageAsset; //相册第一张图片缩略图@property (nonatomic, strong) PHAssetCollection *assetCollection; //相册集，通过该属性获取该相册集下所有照片@end

#import "FWPhotoAlbums.h"@implementation FWPhotoAlbums@end

#import <Foundation/Foundation.h>#import "FWPhotoAlbums.h"@interface FWPhotoManager : NSObject+ (instancetype)sharedManager;- (NSArray <FWPhotoAlbums *> *)getPhotoAlbums;- (NSArray<PHAsset *> *)getAllAssetInPhotoAblumWithAscending:(BOOL)ascending;- (NSArray<PHAsset *> *)getAssetsInAssetCollection:(PHAssetCollection *)assetCollection ascending:(BOOL)ascending;- (void)requestImageForAsset:(PHAsset *)asset size:(CGSize)size resizeMode:(PHImageRequestOptionsResizeMode)resizeMode completion:(void (^)(UIImage *image, NSDictionary *info))completion;- (void)requestImageForAsset:(PHAsset *)asset scale:(CGFloat)scale resizeMode:(PHImageRequestOptionsResizeMode)resizeMode completion:(void (^)(UIImage *image))completion;- (void)getPhotosBytesWithArray:(NSArray *)photos completion:(void (^)(NSString *photosBytes))completion;- (BOOL)judgeAssetisInLocalAblum:(PHAsset *)asset ;@end

#import "FWPhotoManager.h"@implementation FWPhotoManager+ (instancetype)sharedManager{    static FWPhotoManager *manager = nil;    static dispatch_once_t onceToken;    dispatch_once(&onceToken, ^{        manager = [[super allocWithZone:NULL] init];    });        return manager;}+ (instancetype)allocWithZone:(struct _NSZone *)zone{    return [self sharedManager];}- (PHFetchResult *)fetchAssetsInAssetCollection:(PHAssetCollection *)assetCollection ascending:(BOOL)ascending{    PHFetchOptions *options = [[PHFetchOptions alloc] init];    options.sortDescriptors = @[[NSSortDescriptor sortDescriptorWithKey:@"creationDate" ascending:ascending]];    PHFetchResult *result = [PHAsset fetchAssetsInAssetCollection:assetCollection options:options];        return result;}- (NSArray <PHAsset *> *)getAssetsInAssetCollection:(PHAssetCollection *)assetCollection ascending:(BOOL)ascending{    NSMutableArray <PHAsset *> *mArr = [NSMutableArray array];    PHFetchResult *result = [self fetchAssetsInAssetCollection:assetCollection ascending:ascending];    [result enumerateObjectsUsingBlock:^(PHAsset *  _Nonnull obj, NSUInteger idx, BOOL * _Nonnull stop) {        if (obj.mediaType == PHAssetMediaTypeImage) {            [mArr addObject:obj];        }    }];        return mArr;}- (NSArray<PHAsset *> *)getAllAssetInPhotoAblumWithAscending:(BOOL)ascending{    NSMutableArray<PHAsset *> *assets = [NSMutableArray array];        PHFetchOptions *option = [[PHFetchOptions alloc] init];        option.sortDescriptors = @[[NSSortDescriptor sortDescriptorWithKey:@"creationDate" ascending:ascending]];        PHFetchResult *result = [PHAsset fetchAssetsWithMediaType:PHAssetMediaTypeImage options:option];        [result enumerateObjectsUsingBlock:^(PHAsset *  _Nonnull obj, NSUInteger idx, BOOL * _Nonnull stop) {        [assets addObject:obj];    }];        return assets;}- (NSArray <FWPhotoAlbums *> *)getPhotoAlbums{    NSMutableArray<FWPhotoAlbums *> *mArr = [NSMutableArray array];    PHFetchResult *smartAlbum = [PHAssetCollection fetchAssetCollectionsWithType:PHAssetCollectionTypeSmartAlbum subtype:PHAssetCollectionSubtypeAlbumRegular options:nil];    [smartAlbum enumerateObjectsUsingBlock:^(PHAssetCollection *  _Nonnull obj, NSUInteger idx, BOOL * _Nonnull stop) {        if (obj.assetCollectionSubtype != 202 && obj.assetCollectionSubtype < 212) {            NSArray <PHAsset *> *assets = [self getAssetsInAssetCollection:obj ascending:NO];            if ([assets count]) {                FWPhotoAlbums *pa = [[FWPhotoAlbums alloc] init];                pa.albumName = [self TitleOfAlbumForChinse:obj.localizedTitle];                pa.albumImageCount = [assets count];                pa.firstImageAsset = assets.firstObject;                pa.assetCollection = obj;                [mArr addObject:pa];            }        }    }];        PHFetchResult *userAlbums = [PHAssetCollection fetchAssetCollectionsWithType:PHAssetCollectionTypeAlbum subtype:PHAssetCollectionSubtypeSmartAlbumUserLibrary options:nil];    [userAlbums enumerateObjectsUsingBlock:^(PHAssetCollection * _Nonnull collection, NSUInteger idx, BOOL * _Nonnull stop) {        NSArray<PHAsset *> *assets = [self getAssetsInAssetCollection:collection ascending:YES];        if (assets.count > 0) {            FWPhotoAlbums *pa = [[FWPhotoAlbums alloc] init];            pa.albumName = collection.localizedTitle;            pa.albumImageCount = [assets count];            pa.firstImageAsset = assets.firstObject;            pa.assetCollection = collection;            [mArr addObject:pa];        }    }];        return mArr;}- (NSString *)TitleOfAlbumForChinse:(NSString *)title{    if ([title isEqualToString:@"Slo-mo"]) {        return @"慢动作";    } else if ([title isEqualToString:@"Recently Added"]) {        return @"最近添加";    } else if ([title isEqualToString:@"Favorites"]) {        return @"个人收藏";    } else if ([title isEqualToString:@"Recently Deleted"]) {        return @"最近删除";    } else if ([title isEqualToString:@"Videos"]) {        return @"视频";    } else if ([title isEqualToString:@"All Photos"]) {        return @"所有照片";    } else if ([title isEqualToString:@"Selfies"]) {        return @"自拍";    } else if ([title isEqualToString:@"Screenshots"]) {        return @"屏幕快照";    } else if ([title isEqualToString:@"Camera Roll"]) {        return @"相机胶卷";    }    return nil;}- (void)requestImageForAsset:(PHAsset *)asset size:(CGSize)size resizeMode:(PHImageRequestOptionsResizeMode)resizeMode completion:(void (^)(UIImage *, NSDictionary *))completion{    static PHImageRequestID requestID = -1;    CGFloat scale = [UIScreen mainScreen].scale;    CGFloat width = MIN(WIDTH, 800);    if (requestID >= 1 && size.width/width==scale) {        [[PHCachingImageManager defaultManager] cancelImageRequest:requestID];    }        PHImageRequestOptions *option = [[PHImageRequestOptions alloc] init];    option.resizeMode = resizeMode;    option.networkAccessAllowed = YES;        requestID = [[PHCachingImageManager defaultManager] requestImageForAsset:asset targetSize:size contentMode:PHImageContentModeAspectFill options:option resultHandler:^(UIImage * _Nullable image, NSDictionary * _Nullable info) {        BOOL downloadFinined = ![[info objectForKey:PHImageCancelledKey] boolValue] && ![info objectForKey:PHImageErrorKey];        if (downloadFinined && completion) {            completion(image, info);        }    }];}- (void)requestImageForAsset:(PHAsset *)asset scale:(CGFloat)scale resizeMode:(PHImageRequestOptionsResizeMode)resizeMode completion:(void (^)(UIImage *image))completion{    PHImageRequestOptions *option = [[PHImageRequestOptions alloc] init];    option.resizeMode = resizeMode;//控制照片尺寸    option.networkAccessAllowed = YES;        [[PHCachingImageManager defaultManager] requestImageDataForAsset:asset options:option resultHandler:^(NSData * _Nullable imageData, NSString * _Nullable dataUTI, UIImageOrientation orientation, NSDictionary * _Nullable info) {        BOOL downloadFinined = ![[info objectForKey:PHImageCancelledKey] boolValue] && ![info objectForKey:PHImageErrorKey] && ![[info objectForKey:PHImageResultIsDegradedKey] boolValue];        if (downloadFinined && completion) {            CGFloat sca = imageData.length/(CGFloat)UIImageJPEGRepresentation([UIImage imageWithData:imageData], 1).length;            NSData *data = UIImageJPEGRepresentation([UIImage imageWithData:imageData], scale==1?sca:sca/2);            completion([UIImage imageWithData:data]);        }    }];}- (BOOL)judgeAssetisInLocalAblum:(PHAsset *)asset{    PHImageRequestOptions *option = [[PHImageRequestOptions alloc] init];    option.networkAccessAllowed = NO;    option.synchronous = YES;        __block BOOL isInLocalAblum = YES;        [[PHCachingImageManager defaultManager] requestImageDataForAsset:asset options:option resultHandler:^(NSData * _Nullable imageData, NSString * _Nullable dataUTI, UIImageOrientation orientation, NSDictionary * _Nullable info) {        isInLocalAblum = imageData ? YES : NO;    }];    return isInLocalAblum;}@end

#import <UIKit/UIKit.h>#import <Photos/Photos.h>@interface FWPhotoAlbumTableViewController : UITableViewController//最大选择数@property (nonatomic, assign) NSInteger maxSelectCount;//是否选择了原图@property (nonatomic, assign) BOOL isCanSelectMorePhotos;//当前已经选择的图片//@property (nonatomic, strong) NSMutableArray<ZLSelectPhotoModel *> *arraySelectPhotos;//选则完成后回调//@property (nonatomic, copy) void (^DoneBlock)(NSArray<ZLSelectPhotoModel *> *selPhotoModels, BOOL isSelectOriginalPhoto);//取消选择后回调@property (nonatomic, copy) void (^CancelBlock)();@end

#import "FWPhotoAlbumTableViewController.h"#import "FWPhotoManager.h"#import "UIButton+TextAndImageHorizontalDisplay.h"#import "FWPhotoCollectionViewController.h"#import "FWPhotosLayout.h"@interface FWPhotoAlbumTableViewController (){    NSMutableArray<FWPhotoAlbums *> *mArr;}@end@implementation FWPhotoAlbumTableViewController- (void)viewDidLoad {    [super viewDidLoad];    self.view.backgroundColor = [UIColor whiteColor];    self.title = @"相册";        mArr= [[[FWPhotoManager sharedManager] getPhotoAlbums] mutableCopy];        [self initNavgationBar];        self.tableView.separatorStyle = UITableViewCellSeparatorStyleNone;}- (void)initNavgationBar{    UIButton *rightBar = [UIButton buttonWithType:UIButtonTypeSystem];    rightBar.frame = CGRectMake(0, 0, 68, 32);    [rightBar setImage:[UIImage imageNamed:@"Camera"] withTitle:@"相机" forState:UIControlStateNormal];    [rightBar addTarget:self action:@selector(cameraClicked) forControlEvents:UIControlEventTouchUpInside];    self.navigationItem.rightBarButtonItem = [[UIBarButtonItem alloc] initWithCustomView:rightBar];}- (void)cameraClicked{    }#pragma mark - Table view data source- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {    return 1;}- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {    return [mArr count];}- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath{    return 100;}- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {    static NSString *cellID = @"cellID";    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:cellID];    if (!cell)    {        cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:cellID];    }    cell.accessoryType = UITableViewCellAccessoryDisclosureIndicator;    FWPhotoAlbums *album = mArr[indexPath.row];    cell.textLabel.text =album.albumName;    cell.detailTextLabel.text = [NSString stringWithFormat:@"%d张",album.albumImageCount];    cell.detailTextLabel.textColor = [UIColor grayColor];    __block UIImage *img = nil;    [[FWPhotoManager sharedManager] requestImageForAsset:album.firstImageAsset size:CGSizeMake(60 * 3, 60 * 3) resizeMode:PHImageRequestOptionsResizeModeExact completion:^(UIImage *image, NSDictionary *info) {        img = image;    }];    cell.imageView.image = img;    cell.imageView.contentMode = UIViewContentModeScaleAspectFill;    cell.imageView.clipsToBounds = YES;    return cell;}- (BOOL)prefersStatusBarHidden{    return YES;}- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath{    FWPhotoAlbums *model = [mArr objectAtIndex:indexPath.row];    FWPhotosLayout *layout = [[FWPhotosLayout alloc] init];    layout.minimumInteritemSpacing = 1.5;    layout.minimumLineSpacing = 5.0;    FWPhotoCollectionViewController *vc = [[FWPhotoCollectionViewController alloc] initWithCollectionViewLayout:layout model:model];    [self.navigationController pushViewController:vc animated:YES];}- (void)didReceiveMemoryWarning {    [super didReceiveMemoryWarning];    // Dispose of any resources that can be recreated.}@end

#import <UIKit/UIKit.h>#import <Photos/Photos.h>#import "FWPhotoAlbums.h"@interface FWPhotoCollectionViewController : UICollectionViewController@property (nonatomic, strong) FWPhotoAlbums *model;- (instancetype)initWithCollectionViewLayout:(UICollectionViewLayout *)layout model:(FWPhotoAlbums *)model;@end

////  FWPhotoCollectionViewController.m//  FWLifeApp////  Created by Forrest Woo on 16/9/23.//  Copyright © 2016年 ForrstWoo. All rights reserved.//#import "FWPhotoCollectionViewController.h"#import "FWPhotoCell.h"#import "FWPhotoManager.h"#import "FWPhotosLayout.h"#import "FWDisplayBigImageViewController.h"@interface FWPhotoCollectionViewController () <UICollectionViewDelegateFlowLayout, UICollectionViewDataSource>{    NSArray<PHAsset *> *_dataSouce;}@property (nonatomic, strong) PHAssetCollection *assetCollection;@end@implementation FWPhotoCollectionViewControllerstatic NSString * const reuseIdentifier = @"Cell";- (instancetype)initWithCollectionViewLayout:(UICollectionViewLayout *)layout model:(FWPhotoAlbums *)model{    if (self = [super initWithCollectionViewLayout:layout]) {        self.model = model;    }        return self;}- (void)viewDidLoad {    [super viewDidLoad];        // Uncomment the following line to preserve selection between presentations    // self.clearsSelectionOnViewWillAppear = NO;//    self.navigationController.navigationBarHidden = YES;    // Register cell classes    CGRect frame = self.collectionView.frame;    frame.origin.y+=44;    self.collectionView.frame = frame;    self.view.backgroundColor = [UIColor whiteColor];    [self initSource];}//- (void)setModel:(FWPhotoAlbums *)model//{//    self.model = model;//    //    [self initSource];//}- (BOOL)prefersStatusBarHidden{    return YES;}- (void)initSource{    [self.collectionView registerClass:[FWPhotoCell class] forCellWithReuseIdentifier:reuseIdentifier];    self.title = self.model.albumName;    self.automaticallyAdjustsScrollViewInsets = NO;    // Do any additional setup after loading the view.    self.assetCollection = self.model.assetCollection;    _dataSouce = [[FWPhotoManager sharedManager] getAssetsInAssetCollection:self.assetCollection ascending:YES];}- (void)didReceiveMemoryWarning {    [super didReceiveMemoryWarning];    // Dispose of any resources that can be recreated.}#pragma mark <UICollectionViewDataSource>- (NSInteger)numberOfSectionsInCollectionView:(UICollectionView *)collectionView {    return 1;}- (NSInteger)collectionView:(UICollectionView *)collectionView numberOfItemsInSection:(NSInteger)section {    return [_dataSouce count];}- (CGSize)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout *)collectionViewLayout sizeForItemAtIndexPath:(NSIndexPath *)indexPath{    FWPhotosLayout *lay = (FWPhotosLayout *)collectionViewLayout;    return CGSizeMake([lay cellWidth],[lay cellWidth]);}- (UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath {    FWPhotoCell *cell = [collectionView dequeueReusableCellWithReuseIdentifier:reuseIdentifier forIndexPath:indexPath];    PHAsset *asset = _dataSouce[indexPath.row];    __block UIImage *bImage = nil;    CGSize size = cell.frame.size;    size.width *= 3;    size.height *= 3;    [[FWPhotoManager sharedManager] requestImageForAsset:asset size:size resizeMode:PHImageRequestOptionsResizeModeFast completion:^(UIImage *image, NSDictionary *info) {        bImage = image;    }];        [cell setImage:bImage];        return cell;}- (void)collectionView:(UICollectionView *)collectionView didSelectItemAtIndexPath:(NSIndexPath *)indexPath{    PHAsset *asset = _dataSouce[indexPath.row];    [[FWPhotoManager sharedManager] requestImageForAsset:asset size:PHImageManagerMaximumSize resizeMode:PHImageRequestOptionsResizeModeFast completion:^(UIImage *image, NSDictionary *info) {        FWDisplayBigImageViewController *vc = [[FWDisplayBigImageViewController alloc] initWithImage:image];        [self.navigationController pushViewController:vc animated:YES];    }];   }#pragma mark <UICollectionViewDelegate>@end

#import <UIKit/UIKit.h>@interface FWPhotosLayout : UICollectionViewFlowLayout@property (nonatomic, assign,readonly)CGFloat cellWidth;@end

#import "FWPhotosLayout.h"@interface FWPhotosLayout ()@property NSInteger countOfRow;@end@implementation FWPhotosLayout- (void)prepareLayout{    [super prepareLayout];        self.countOfRow = ceilf([self.collectionView numberOfItemsInSection:0] / 4.0);}- (UICollectionViewLayoutAttributes*)layoutAttributesForItemAtIndexPath:(NSIndexPath *)indexPath{    UICollectionViewLayoutAttributes *attris = [UICollectionViewLayoutAttributes layoutAttributesForCellWithIndexPath:indexPath];    NSInteger currentRow = indexPath.item / 4;        CGRect frame = CGRectMake( (indexPath.item % 4) * ([self cellWidth] + 5),currentRow * ([self cellWidth] + 65), [self cellWidth], [self cellWidth]);    attris.frame = frame;    attris.zIndex = 1;        return attris;}- (CGFloat)cellWidth{    return (WIDTH - 3 * 5) / 4;}- (CGSize)collectionViewContentSize{    return CGSizeMake(WIDTH, self.countOfRow * ([self cellWidth] + 5) + 44);}@end