TZImagePicker/TZImagePickerController/TZImageManager.h

//
//  TZImageManager.h
//  TZImagePickerController
//
//  Created by 谭真 on 16/1/4.
//  Copyright © 2016年 谭真. All rights reserved.
//  图片资源获取管理类

#import <Foundation/Foundation.h>
#import <UIKit/UIKit.h>
#import <AVFoundation/AVFoundation.h>
#import <Photos/Photos.h>
#import "TZAssetModel.h"

@class TZAlbumModel,TZAssetModel;
@protocol TZImagePickerControllerDelegate;
@interface TZImageManager : NSObject

@property (nonatomic, strong) PHCachingImageManager *cachingImageManager;

+ (instancetype)manager NS_SWIFT_NAME(default());
+ (void)deallocManager;

@property (weak, nonatomic) id<TZImagePickerControllerDelegate> pickerDelegate;

@property (nonatomic, assign) BOOL shouldFixOrientation;

@property (nonatomic, assign) BOOL isPreviewNetworkImage;

/// Default is 600px / 默认600像素宽
@property (nonatomic, assign) CGFloat photoPreviewMaxWidth;
/// The pixel width of output image, Default is 828px / 导出图片的宽度，默认828像素宽
@property (nonatomic, assign) CGFloat photoWidth;

/// Default is 4, Use in photos collectionView in TZPhotoPickerController
/// 默认4列, TZPhotoPickerController中的照片collectionView
@property (nonatomic, assign) NSInteger columnNumber;

/// Sort photos ascending by modificationDate，Default is YES
/// 对照片排序，按修改时间升序，默认是YES。如果设置为NO,最新的照片会显示在最前面，内部的拍照按钮会排在第一个
@property (nonatomic, assign) BOOL sortAscendingByModificationDate;

/// Minimum selectable photo width, Default is 0
/// 最小可选中的图片宽度，默认是0，小于这个宽度的图片不可选中
@property (nonatomic, assign) NSInteger minPhotoWidthSelectable;
@property (nonatomic, assign) NSInteger minPhotoHeightSelectable;
@property (nonatomic, assign) BOOL hideWhenCanNotSelect;

/// Return YES if Authorized 返回YES如果得到了授权
- (BOOL)authorizationStatusAuthorized;
- (void)requestAuthorizationWithCompletion:(void (^)(void))completion;

/// Get Album 获得相册/相册数组
- (void)getCameraRollAlbum:(BOOL)allowPickingVideo allowPickingImage:(BOOL)allowPickingImage needFetchAssets:(BOOL)needFetchAssets completion:(void (^)(TZAlbumModel *model))completion;
- (void)getAllAlbums:(BOOL)allowPickingVideo allowPickingImage:(BOOL)allowPickingImage needFetchAssets:(BOOL)needFetchAssets completion:(void (^)(NSArray<TZAlbumModel *> *models))completion;

/// Get Assets 获得Asset数组
- (void)getAssetsFromFetchResult:(PHFetchResult *)result completion:(void (^)(NSArray<TZAssetModel *> *models))completion;
- (void)getAssetsFromFetchResult:(PHFetchResult *)result allowPickingVideo:(BOOL)allowPickingVideo allowPickingImage:(BOOL)allowPickingImage completion:(void (^)(NSArray<TZAssetModel *> *models))completion;
- (void)getAssetFromFetchResult:(PHFetchResult *)result atIndex:(NSInteger)index allowPickingVideo:(BOOL)allowPickingVideo allowPickingImage:(BOOL)allowPickingImage completion:(void (^)(TZAssetModel *model))completion;

/// Get photo 获得照片
- (PHImageRequestID)getPostImageWithAlbumModel:(TZAlbumModel *)model completion:(void (^)(UIImage *postImage))completion;

- (PHImageRequestID)getPhotoWithAsset:(PHAsset *)asset completion:(void (^)(UIImage *photo,NSDictionary *info,BOOL isDegraded))completion;
- (PHImageRequestID)getPhotoWithAsset:(PHAsset *)asset photoWidth:(CGFloat)photoWidth completion:(void (^)(UIImage *photo,NSDictionary *info,BOOL isDegraded))completion;
- (PHImageRequestID)getPhotoWithAsset:(PHAsset *)asset completion:(void (^)(UIImage *photo,NSDictionary *info,BOOL isDegraded))completion progressHandler:(void (^)(double progress, NSError *error, BOOL *stop, NSDictionary *info))progressHandler networkAccessAllowed:(BOOL)networkAccessAllowed;
- (PHImageRequestID)getPhotoWithAsset:(PHAsset *)asset photoWidth:(CGFloat)photoWidth completion:(void (^)(UIImage *photo,NSDictionary *info,BOOL isDegraded))completion progressHandler:(void (^)(double progress, NSError *error, BOOL *stop, NSDictionary *info))progressHandler networkAccessAllowed:(BOOL)networkAccessAllowed;
- (PHImageRequestID)requestImageDataForAsset:(PHAsset *)asset completion:(void (^)(NSData *imageData, NSString *dataUTI, UIImageOrientation orientation, NSDictionary *info))completion progressHandler:(void (^)(double progress, NSError *error, BOOL *stop, NSDictionary *info))progressHandler;

/// Get full Image 获取原图
/// 如下两个方法completion一般会调多次，一般会先返回缩略图，再返回原图(详见方法内部使用的系统API的说明)，如果info[PHImageResultIsDegradedKey] 为 YES，则表明当前返回的是缩略图，否则是原图。
/// 以下3个方法取的都是原图，如果像素很高，可能出现爆内存的情况，默认大小为：PHImageManagerMaximumSize，默认缩放方式：PHImageContentModeAspectFit
- (PHImageRequestID)getOriginalPhotoWithAsset:(PHAsset *)asset completion:(void (^)(UIImage *photo,NSDictionary *info))completion;
- (PHImageRequestID)getOriginalPhotoWithAsset:(PHAsset *)asset newCompletion:(void (^)(UIImage *photo,NSDictionary *info,BOOL isDegraded))completion;
- (PHImageRequestID)getOriginalPhotoWithAsset:(PHAsset *)asset progressHandler:(void (^)(double progress, NSError *error, BOOL *stop, NSDictionary *info))progressHandler newCompletion:(void (^)(UIImage *photo,NSDictionary *info,BOOL isDegraded))completion;
/// 这个方法会对获取到的图片按给定的大小进行等比例缩放
- (PHImageRequestID)getOriginalPhotoWithAsset:(PHAsset *)asset targetSize:(CGSize)targetSize contentMode:(PHImageContentMode)mode progressHandler:(void (^)(double progress, NSError *error, BOOL *stop, NSDictionary *info))progressHandler newCompletion:(void (^)(UIImage *photo,NSDictionary *info,BOOL isDegraded))completion;
// 该方法中，completion只会走一次
- (PHImageRequestID)getOriginalPhotoDataWithAsset:(PHAsset *)asset completion:(void (^)(NSData *data,NSDictionary *info,BOOL isDegraded))completion;
- (PHImageRequestID)getOriginalPhotoDataWithAsset:(PHAsset *)asset progressHandler:(void (^)(double progress, NSError *error, BOOL *stop, NSDictionary *info))progressHandler completion:(void (^)(NSData *data,NSDictionary *info,BOOL isDegraded))completion;

/// Save photo 保存照片
- (void)savePhotoWithImage:(UIImage *)image completion:(void (^)(PHAsset *asset, NSError *error))completion;
- (void)savePhotoWithImage:(UIImage *)image location:(CLLocation *)location completion:(void (^)(PHAsset *asset, NSError *error))completion;

/// Save video 保存视频
- (void)saveVideoWithUrl:(NSURL *)url completion:(void (^)(PHAsset *asset, NSError *error))completion;
- (void)saveVideoWithUrl:(NSURL *)url location:(CLLocation *)location completion:(void (^)(PHAsset *asset, NSError *error))completion;

/// Get video 获得视频
- (void)getVideoWithAsset:(PHAsset *)asset completion:(void (^)(AVPlayerItem * playerItem, NSDictionary * info))completion;
- (void)getVideoWithAsset:(PHAsset *)asset progressHandler:(void (^)(double progress, NSError *error, BOOL *stop, NSDictionary *info))progressHandler completion:(void (^)(AVPlayerItem *, NSDictionary *))completion;
- (void)requestVideoWithAsset:(PHAsset *)asset
                 startHandler:(void (^)(PHImageRequestID))startHandler
              progressHandler:(void (^)(double progress, NSError *error, BOOL *stop))progressHandler
                   completion:(void (^)(AVAsset *))completion;

/// Export video 导出视频 presetName: 预设名字，默认值是AVAssetExportPreset640x480
- (void)getVideoOutputPathWithAsset:(PHAsset *)asset success:(void (^)(NSString *outputPath))success failure:(void (^)(NSString *errorMessage, NSError *error))failure;
- (void)getVideoOutputPathWithAsset:(PHAsset *)asset presetName:(NSString *)presetName success:(void (^)(NSString *outputPath))success failure:(void (^)(NSString *errorMessage, NSError *error))failure;
/// Deprecated, Use -getVideoOutputPathWithAsset:failure:success:
- (void)getVideoOutputPathWithAsset:(PHAsset *)asset completion:(void (^)(NSString *outputPath))completion __attribute__((deprecated("Use -getVideoOutputPathWithAsset:failure:success:")));

/// Get photo bytes 获得一组照片的大小
- (void)getPhotosBytesWithArray:(NSArray *)photos completion:(void (^)(NSString *totalBytes))completion;

- (BOOL)isCameraRollAlbum:(PHAssetCollection *)metadata;

/// 检查照片大小是否满足最小要求
- (BOOL)isPhotoSelectableWithAsset:(PHAsset *)asset;

/// 修正图片转向
- (UIImage *)fixOrientation:(UIImage *)aImage;

/// 获取asset的资源类型
- (TZAssetModelMediaType)getAssetType:(PHAsset *)asset;
/// 缩放图片至新尺寸
- (UIImage *)scaleImage:(UIImage *)image toSize:(CGSize)size;

/// 判断asset是否是视频
- (BOOL)isVideo:(PHAsset *)asset;

/// for TZImagePreviewController
- (NSString *)getNewTimeFromDurationSecond:(NSInteger)duration;

- (TZAssetModel *)createModelWithAsset:(PHAsset *)asset;

@end

//@interface TZSortDescriptor : NSSortDescriptor
//
//@end