// // ZLPhotoManager.m // ZLPhotoBrowser // // Created by long on 17/4/12. // Copyright © 2017年 long. All rights reserved. // #import "ZLPhotoManager.h" #import static BOOL _sortAscending; @implementation ZLPhotoManager + (void)setSortAscending:(BOOL)ascending { _sortAscending = ascending; } + (BOOL)sortAscending { return _sortAscending; } #pragma mark - 保存图片到系统相册 + (void)saveImageToAblum:(UIImage *)image completion:(void (^)(BOOL, PHAsset *))completion { PHAuthorizationStatus status = [PHPhotoLibrary authorizationStatus]; if (status == PHAuthorizationStatusDenied) { if (completion) completion(NO, nil); } else if (status == PHAuthorizationStatusRestricted) { if (completion) completion(NO, nil); } else { __block PHObjectPlaceholder *placeholderAsset=nil; [[PHPhotoLibrary sharedPhotoLibrary] performChanges:^{ PHAssetChangeRequest *newAssetRequest = [PHAssetChangeRequest creationRequestForAssetFromImage:image]; placeholderAsset = newAssetRequest.placeholderForCreatedAsset; } completionHandler:^(BOOL success, NSError * _Nullable error) { if (!success) { if (completion) completion(NO, nil); return; } PHAsset *asset = [self getAssetFromlocalIdentifier:placeholderAsset.localIdentifier]; PHAssetCollection *desCollection = [self getDestinationCollection]; if (!desCollection) completion(NO, nil); [[PHPhotoLibrary sharedPhotoLibrary] performChanges:^{ [[PHAssetCollectionChangeRequest changeRequestForAssetCollection:desCollection] addAssets:@[asset]]; } completionHandler:^(BOOL success, NSError * _Nullable error) { if (completion) completion(success, asset); }]; }]; } } + (void)saveVideoToAblum:(NSURL *)url completion:(void (^)(BOOL, PHAsset *))completion { PHAuthorizationStatus status = [PHPhotoLibrary authorizationStatus]; if (status == PHAuthorizationStatusDenied) { if (completion) completion(NO, nil); } else if (status == PHAuthorizationStatusRestricted) { if (completion) completion(NO, nil); } else { __block PHObjectPlaceholder *placeholderAsset=nil; [[PHPhotoLibrary sharedPhotoLibrary] performChanges:^{ PHAssetChangeRequest *newAssetRequest = [PHAssetChangeRequest creationRequestForAssetFromVideoAtFileURL:url]; placeholderAsset = newAssetRequest.placeholderForCreatedAsset; } completionHandler:^(BOOL success, NSError * _Nullable error) { if (!success) { if (completion) completion(NO, nil); return; } PHAsset *asset = [self getAssetFromlocalIdentifier:placeholderAsset.localIdentifier]; PHAssetCollection *desCollection = [self getDestinationCollection]; if (!desCollection) completion(NO, nil); [[PHPhotoLibrary sharedPhotoLibrary] performChanges:^{ [[PHAssetCollectionChangeRequest changeRequestForAssetCollection:desCollection] addAssets:@[asset]]; } completionHandler:^(BOOL success, NSError * _Nullable error) { if (completion) completion(success, asset); }]; }]; } } + (PHAsset *)getAssetFromlocalIdentifier:(NSString *)localIdentifier{ if(localIdentifier == nil){ NSLog(@"Cannot get asset from localID because it is nil"); return nil; } PHFetchResult *result = [PHAsset fetchAssetsWithLocalIdentifiers:@[localIdentifier] options:nil]; if(result.count){ return result[0]; } return nil; } //获取自定义相册 + (PHAssetCollection *)getDestinationCollection { //找是否已经创建自定义相册 PHFetchResult *collectionResult = [PHAssetCollection fetchAssetCollectionsWithType:PHAssetCollectionTypeAlbum subtype:PHAssetCollectionSubtypeAlbumRegular options:nil]; for (PHAssetCollection *collection in collectionResult) { if ([collection.localizedTitle isEqualToString:kAPPName]) { return collection; } } //新建自定义相册 __block NSString *collectionId = nil; NSError *error = nil; [[PHPhotoLibrary sharedPhotoLibrary] performChangesAndWait:^{ collectionId = [PHAssetCollectionChangeRequest creationRequestForAssetCollectionWithTitle:kAPPName].placeholderForCreatedAssetCollection.localIdentifier; } error:&error]; if (error) { NSLog(@"创建相册：%@失败", kAPPName); return nil; } return [PHAssetCollection fetchAssetCollectionsWithLocalIdentifiers:@[collectionId] options:nil].lastObject; } #pragma mark - 在全部照片中获取指定个数、排序方式的部分照片 + (NSArray *)getAllAssetInPhotoAlbumWithAscending:(BOOL)ascending limitCount:(NSInteger)limit allowSelectVideo:(BOOL)allowSelectVideo allowSelectImage:(BOOL)allowSelectImage allowSelectGif:(BOOL)allowSelectGif allowSelectLivePhoto:(BOOL)allowSelectLivePhoto { PHFetchOptions *option = [[PHFetchOptions alloc] init]; //ascending 为YES时，按照照片的创建时间升序排列;为NO时，则降序排列 if (!ascending) option.sortDescriptors = @[[NSSortDescriptor sortDescriptorWithKey:@"creationDate" ascending:ascending]]; PHFetchResult *result = [PHAsset fetchAssetsWithOptions:option]; return [self getPhotoInResult:result allowSelectVideo:allowSelectVideo allowSelectImage:allowSelectImage allowSelectGif:allowSelectGif allowSelectLivePhoto:allowSelectLivePhoto limitCount:limit]; } + (ZLAlbumListModel *)getCameraRollAlbumList:(BOOL)allowSelectVideo allowSelectImage:(BOOL)allowSelectImage { PHFetchOptions *option = [[PHFetchOptions alloc] init]; if (!allowSelectVideo) option.predicate = [NSPredicate predicateWithFormat:@"mediaType == %ld", PHAssetMediaTypeImage]; if (!allowSelectImage) option.predicate = [NSPredicate predicateWithFormat:@"mediaType == %ld",PHAssetMediaTypeVideo]; if (!self.sortAscending) option.sortDescriptors = @[[NSSortDescriptor sortDescriptorWithKey:@"creationDate" ascending:self.sortAscending]]; PHFetchResult *smartAlbums = [PHAssetCollection fetchAssetCollectionsWithType:PHAssetCollectionTypeSmartAlbum subtype:PHAssetCollectionSubtypeAlbumRegular options:nil]; __block ZLAlbumListModel *m; [smartAlbums enumerateObjectsUsingBlock:^(PHAssetCollection * _Nonnull collection, NSUInteger idx, BOOL * _Nonnull stop) { //获取相册内asset result if (collection.assetCollectionSubtype == 209) { PHFetchResult *result = [PHAsset fetchAssetsInAssetCollection:collection options:option]; m = [self getAlbumModeWithTitle:[self getCollectionTitle:collection] result:result allowSelectVideo:allowSelectVideo allowSelectImage:allowSelectImage]; m.isCameraRoll = YES; } }]; return m; } + (void)getCameraRollAlbumList:(BOOL)allowSelectVideo allowSelectImage:(BOOL)allowSelectImage complete:(void (^)(ZLAlbumListModel *))complete { if (complete) { complete([self getCameraRollAlbumList:allowSelectVideo allowSelectImage:allowSelectImage]); } } + (void)getPhotoAblumList:(BOOL)allowSelectVideo allowSelectImage:(BOOL)allowSelectImage complete:(void (^)(NSArray *))complete { if (!allowSelectImage && !allowSelectVideo) { if (complete) complete(nil); return; } PHFetchOptions *option = [[PHFetchOptions alloc] init]; if (!allowSelectVideo) option.predicate = [NSPredicate predicateWithFormat:@"mediaType == %ld", PHAssetMediaTypeImage]; if (!allowSelectImage) option.predicate = [NSPredicate predicateWithFormat:@"mediaType == %ld",PHAssetMediaTypeVideo]; if (!self.sortAscending) option.sortDescriptors = @[[NSSortDescriptor sortDescriptorWithKey:@"creationDate" ascending:self.sortAscending]]; //获取所有智能相册 PHFetchResult *smartAlbums = [PHAssetCollection fetchAssetCollectionsWithType:PHAssetCollectionTypeSmartAlbum subtype:PHAssetCollectionSubtypeAlbumRegular options:nil]; PHFetchResult *streamAlbums = [PHAssetCollection fetchAssetCollectionsWithType:PHAssetCollectionTypeAlbum subtype:PHAssetCollectionSubtypeAlbumMyPhotoStream options:nil]; PHFetchResult *userAlbums = [PHCollectionList fetchTopLevelUserCollectionsWithOptions:nil]; PHFetchResult *syncedAlbums = [PHAssetCollection fetchAssetCollectionsWithType:PHAssetCollectionTypeAlbum subtype:PHAssetCollectionSubtypeAlbumSyncedAlbum options:nil]; PHFetchResult *sharedAlbums = [PHAssetCollection fetchAssetCollectionsWithType:PHAssetCollectionTypeAlbum subtype:PHAssetCollectionSubtypeAlbumCloudShared options:nil]; NSArray *arrAllAlbums = @[smartAlbums, streamAlbums, userAlbums, syncedAlbums, sharedAlbums]; /** PHAssetCollectionSubtypeAlbumRegular = 2,/// PHAssetCollectionSubtypeAlbumSyncedEvent = 3,//// PHAssetCollectionSubtypeAlbumSyncedFaces = 4,////面孔 PHAssetCollectionSubtypeAlbumSyncedAlbum = 5,//// PHAssetCollectionSubtypeAlbumImported = 6,//// // PHAssetCollectionTypeAlbum shared subtypes PHAssetCollectionSubtypeAlbumMyPhotoStream = 100,/// PHAssetCollectionSubtypeAlbumCloudShared = 101,/// // PHAssetCollectionTypeSmartAlbum subtypes //// collection.localizedTitle PHAssetCollectionSubtypeSmartAlbumGeneric = 200,/// PHAssetCollectionSubtypeSmartAlbumPanoramas = 201,///全景照片 PHAssetCollectionSubtypeSmartAlbumVideos = 202,///视频 PHAssetCollectionSubtypeSmartAlbumFavorites = 203,///个人收藏 PHAssetCollectionSubtypeSmartAlbumTimelapses = 204,///延时摄影 PHAssetCollectionSubtypeSmartAlbumAllHidden = 205,/// 已隐藏 PHAssetCollectionSubtypeSmartAlbumRecentlyAdded = 206,///最近添加 PHAssetCollectionSubtypeSmartAlbumBursts = 207,///连拍快照 PHAssetCollectionSubtypeSmartAlbumSlomoVideos = 208,///慢动作 PHAssetCollectionSubtypeSmartAlbumUserLibrary = 209,///所有照片 PHAssetCollectionSubtypeSmartAlbumSelfPortraits NS_AVAILABLE_IOS(9_0) = 210,///自拍 PHAssetCollectionSubtypeSmartAlbumScreenshots NS_AVAILABLE_IOS(9_0) = 211,///屏幕快照 PHAssetCollectionSubtypeSmartAlbumDepthEffect PHOTOS_AVAILABLE_IOS_TVOS(10_2, 10_1) = 212,///人像 PHAssetCollectionSubtypeSmartAlbumLivePhotos PHOTOS_AVAILABLE_IOS_TVOS(10_3, 10_2) = 213,//livephotos PHAssetCollectionSubtypeSmartAlbumAnimated = 214,///动图 = 1000000201///最近删除知道值为（1000000201）但没找到对应的TypedefName // Used for fetching, if you don't care about the exact subtype PHAssetCollectionSubtypeAny = NSIntegerMax /////所有类型 */ NSMutableArray *arrAlbum = [NSMutableArray array]; for (PHFetchResult *album in arrAllAlbums) { [album enumerateObjectsUsingBlock:^(PHAssetCollection * _Nonnull collection, NSUInteger idx, BOOL *stop) { //过滤PHCollectionList对象 if (![collection isKindOfClass:PHAssetCollection.class]) return; //过滤最近删除 if (collection.assetCollectionSubtype > 215) return; //获取相册内asset result PHFetchResult *result = [PHAsset fetchAssetsInAssetCollection:collection options:option]; if (!result.count) return; NSString *title = [self getCollectionTitle:collection]; if (collection.assetCollectionSubtype == 209) { ZLAlbumListModel *m = [self getAlbumModeWithTitle:title result:result allowSelectVideo:allowSelectVideo allowSelectImage:allowSelectImage]; m.isCameraRoll = YES; [arrAlbum insertObject:m atIndex:0]; } else { [arrAlbum addObject:[self getAlbumModeWithTitle:title result:result allowSelectVideo:allowSelectVideo allowSelectImage:allowSelectImage]]; } }]; } if (complete) complete(arrAlbum); } + (NSString *)getCollectionTitle:(PHAssetCollection *)collection { if (collection.assetCollectionType == PHAssetCollectionTypeAlbum) { //用户相册 return collection.localizedTitle; } //系统相册 ZLLanguageType type = [[[NSUserDefaults standardUserDefaults] valueForKey:ZLLanguageTypeKey] integerValue]; NSString *title = nil; if (type == ZLLanguageSystem) { title = collection.localizedTitle; } else { switch (collection.assetCollectionSubtype) { case PHAssetCollectionSubtypeSmartAlbumUserLibrary: title = GetLocalLanguageTextValue(ZLPhotoBrowserCameraRoll); break; case PHAssetCollectionSubtypeSmartAlbumPanoramas: title = GetLocalLanguageTextValue(ZLPhotoBrowserPanoramas); break; case PHAssetCollectionSubtypeSmartAlbumVideos: title = GetLocalLanguageTextValue(ZLPhotoBrowserVideos); break; case PHAssetCollectionSubtypeSmartAlbumFavorites: title = GetLocalLanguageTextValue(ZLPhotoBrowserFavorites); break; case PHAssetCollectionSubtypeSmartAlbumTimelapses: title = GetLocalLanguageTextValue(ZLPhotoBrowserTimelapses); break; case PHAssetCollectionSubtypeSmartAlbumRecentlyAdded: title = GetLocalLanguageTextValue(ZLPhotoBrowserRecentlyAdded); break; case PHAssetCollectionSubtypeSmartAlbumBursts: title = GetLocalLanguageTextValue(ZLPhotoBrowserBursts); break; case PHAssetCollectionSubtypeSmartAlbumSlomoVideos: title = GetLocalLanguageTextValue(ZLPhotoBrowserSlomoVideos); break; case PHAssetCollectionSubtypeSmartAlbumSelfPortraits: title = GetLocalLanguageTextValue(ZLPhotoBrowserSelfPortraits); break; case PHAssetCollectionSubtypeSmartAlbumScreenshots: title = GetLocalLanguageTextValue(ZLPhotoBrowserScreenshots); break; case PHAssetCollectionSubtypeSmartAlbumDepthEffect: title = GetLocalLanguageTextValue(ZLPhotoBrowserDepthEffect); break; case PHAssetCollectionSubtypeSmartAlbumLivePhotos: title = GetLocalLanguageTextValue(ZLPhotoBrowserLivePhotos); break; default: break; } if (@available(iOS 11, *)) { // PHAssetCollectionSubtypeSmartAlbumAnimated 为动图，但是貌似苹果返回的结果有bug，动图的subtype值为 215，即PHAssetCollectionSubtypeSmartAlbumLongExposures if (collection.assetCollectionSubtype == 215) { title = GetLocalLanguageTextValue(ZLPhotoBrowserAnimated); } } } return title?:collection.localizedTitle; } //获取相册列表model + (ZLAlbumListModel *)getAlbumModeWithTitle:(NSString *)title result:(PHFetchResult *)result allowSelectVideo:(BOOL)allowSelectVideo allowSelectImage:(BOOL)allowSelectImage { ZLAlbumListModel *model = [[ZLAlbumListModel alloc] init]; model.title = title; model.count = result.count; model.result = result; if (self.sortAscending) { model.headImageAsset = result.lastObject; } else { model.headImageAsset = result.firstObject; } //为了获取所有asset gif设置为yes model.models = [ZLPhotoManager getPhotoInResult:result allowSelectVideo:allowSelectVideo allowSelectImage:allowSelectImage allowSelectGif:allowSelectImage allowSelectLivePhoto:allowSelectImage]; return model; } #pragma mark - 根据照片数组对象获取对应photomodel数组 + (NSArray *)getPhotoInResult:(PHFetchResult *)result allowSelectVideo:(BOOL)allowSelectVideo allowSelectImage:(BOOL)allowSelectImage allowSelectGif:(BOOL)allowSelectGif allowSelectLivePhoto:(BOOL)allowSelectLivePhoto { return [self getPhotoInResult:result allowSelectVideo:allowSelectVideo allowSelectImage:allowSelectImage allowSelectGif:allowSelectGif allowSelectLivePhoto:allowSelectLivePhoto limitCount:NSIntegerMax]; } + (NSArray *)getPhotoInResult:(PHFetchResult *)result allowSelectVideo:(BOOL)allowSelectVideo allowSelectImage:(BOOL)allowSelectImage allowSelectGif:(BOOL)allowSelectGif allowSelectLivePhoto:(BOOL)allowSelectLivePhoto limitCount:(NSInteger)limit { NSMutableArray *arrModel = [NSMutableArray array]; __block NSInteger count = 1; [result enumerateObjectsUsingBlock:^(PHAsset * _Nonnull obj, NSUInteger idx, BOOL * _Nonnull stop) { ZLAssetMediaType type = [self transformAssetType:obj]; if (type == ZLAssetMediaTypeImage && !allowSelectImage) return; if (type == ZLAssetMediaTypeGif && !allowSelectImage) return; if (type == ZLAssetMediaTypeLivePhoto && !allowSelectImage) return; if (type == ZLAssetMediaTypeVideo && !allowSelectVideo) return; if (count == limit) { *stop = YES; } NSString *duration = [self getDuration:obj]; [arrModel addObject:[ZLPhotoModel modelWithAsset:obj type:type duration:duration]]; count++; }]; return arrModel; } //系统mediatype 转换为 自定义type + (ZLAssetMediaType)transformAssetType:(PHAsset *)asset { switch (asset.mediaType) { case PHAssetMediaTypeAudio: return ZLAssetMediaTypeAudio; case PHAssetMediaTypeVideo: return ZLAssetMediaTypeVideo; case PHAssetMediaTypeImage: if ([[asset valueForKey:@"filename"] hasSuffix:@"GIF"])return ZLAssetMediaTypeGif; if (asset.mediaSubtypes == PHAssetMediaSubtypePhotoLive || asset.mediaSubtypes == 10) return ZLAssetMediaTypeLivePhoto; return ZLAssetMediaTypeImage; default: return ZLAssetMediaTypeUnknown; } } + (NSString *)getDuration:(PHAsset *)asset { if (asset.mediaType != PHAssetMediaTypeVideo) return nil; NSInteger duration = (NSInteger)round(asset.duration); if (duration < 60) { return [NSString stringWithFormat:@"00:%02ld", duration]; } else if (duration < 3600) { NSInteger m = duration / 60; NSInteger s = duration % 60; return [NSString stringWithFormat:@"%02ld:%02ld", m, s]; } else { NSInteger h = duration / 3600; NSInteger m = (duration % 3600) / 60; NSInteger s = duration % 60; return [NSString stringWithFormat:@"%02ld:%02ld:%02ld", h, m, s]; } } + (void)requestOriginalImageDataForAsset:(PHAsset *)asset completion:(void (^)(NSData *, NSDictionary *))completion { PHImageRequestOptions *option = [[PHImageRequestOptions alloc]init]; option.networkAccessAllowed = YES; option.resizeMode = PHImageRequestOptionsResizeModeFast; [[PHImageManager 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]); if (downloadFinined && imageData) { if (completion) completion(imageData, info); } }]; } + (void)requestSelectedImageForAsset:(ZLPhotoModel *)model isOriginal:(BOOL)isOriginal allowSelectGif:(BOOL)allowSelectGif completion:(void (^)(UIImage *, NSDictionary *))completion { if (model.type == ZLAssetMediaTypeGif && allowSelectGif) { [self requestOriginalImageDataForAsset:model.asset completion:^(NSData *data, NSDictionary *info) { if (![[info objectForKey:PHImageResultIsDegradedKey] boolValue]) { UIImage *image = [ZLPhotoManager transformToGifImageWithData:data]; if (completion) { completion(image, info); } } }]; } else { if (isOriginal) { [self requestOriginalImageForAsset:model.asset completion:completion]; } else { CGFloat scale = 2; CGFloat width = MIN(kViewWidth, kMaxImageWidth); CGSize size = CGSizeMake(width*scale, width*scale*model.asset.pixelHeight/model.asset.pixelWidth); [self requestImageForAsset:model.asset size:size completion:completion]; } } } + (void)requestOriginalImageForAsset:(PHAsset *)asset completion:(void (^)(UIImage *, NSDictionary *))completion { // CGFloat scale = 4; // CGFloat width = MIN(kViewWidth, kMaxImageWidth); // CGSize size = CGSizeMake(width*scale, width*scale*asset.pixelHeight/asset.pixelWidth); // [self requestImageForAsset:asset size:size resizeMode:PHImageRequestOptionsResizeModeFast completion:completion]; [self requestImageForAsset:asset size:CGSizeMake(asset.pixelWidth, asset.pixelHeight) resizeMode:PHImageRequestOptionsResizeModeNone completion:completion]; } + (PHImageRequestID)requestImageForAsset:(PHAsset *)asset size:(CGSize)size completion:(void (^)(UIImage *image, NSDictionary *info))completion { return [self requestImageForAsset:asset size:size resizeMode:PHImageRequestOptionsResizeModeFast completion:completion]; } + (void)requestLivePhotoForAsset:(PHAsset *)asset completion:(void (^)(PHLivePhoto *livePhoto, NSDictionary *info))completion { PHLivePhotoRequestOptions *option = [[PHLivePhotoRequestOptions alloc] init]; option.version = PHImageRequestOptionsVersionCurrent; option.deliveryMode = PHImageRequestOptionsDeliveryModeOpportunistic; option.networkAccessAllowed = YES; [[PHCachingImageManager defaultManager] requestLivePhotoForAsset:asset targetSize:PHImageManagerMaximumSize contentMode:PHImageContentModeAspectFit options:option resultHandler:^(PHLivePhoto * _Nullable livePhoto, NSDictionary * _Nullable info) { if (completion) completion(livePhoto, info); }]; } + (void)requestVideoForAsset:(PHAsset *)asset completion:(void (^)(AVPlayerItem *item, NSDictionary *info))completion { [[PHCachingImageManager defaultManager] requestPlayerItemForVideo:asset options:nil resultHandler:^(AVPlayerItem * _Nullable playerItem, NSDictionary * _Nullable info) { if (completion) completion(playerItem, info); }]; } + (void)anialysisAssets:(NSArray *)assets original:(BOOL)original completion:(void (^)(NSArray *))completion { NSMutableArray *arr = [NSMutableArray array]; dispatch_queue_t queue = dispatch_queue_create(nil, 0); dispatch_semaphore_t sem = dispatch_semaphore_create(1); for (int i = 0; i < assets.count; i++) { PHAsset *asset = assets[i]; dispatch_async(queue, ^{ dispatch_semaphore_wait(sem, DISPATCH_TIME_FOREVER); zl_weakify(self); if (original) { [self requestOriginalImageForAsset:asset completion:^(UIImage *image, NSDictionary *info) { if ([[info objectForKey:PHImageResultIsDegradedKey] boolValue]) return; dispatch_semaphore_signal(sem); zl_strongify(weakSelf); [arr addObject:[strongSelf scaleImage:image original:original]]; if (i == assets.count-1) { dispatch_async(dispatch_get_main_queue(), ^{ if (completion) completion(arr); }); } }]; } else { CGFloat scale = 2; CGFloat width = MIN(kViewWidth, kMaxImageWidth); CGSize size = CGSizeMake(width*scale, width*scale*asset.pixelHeight/asset.pixelWidth); [self requestImageForAsset:asset size:size completion:^(UIImage *image, NSDictionary *info) { if ([[info objectForKey:PHImageResultIsDegradedKey] boolValue]) return; dispatch_semaphore_signal(sem); zl_strongify(weakSelf); [arr addObject:[strongSelf scaleImage:image original:original]]; if (i == assets.count-1) { dispatch_async(dispatch_get_main_queue(), ^{ if (completion) completion(arr); }); } }]; } }); } } + (UIImage *)scaleImage:(UIImage *)image original:(BOOL)original { NSData *data = UIImageJPEGRepresentation(image, 1); if (data.length < 0.2*(1024*1024)) { //小于200k不缩放 return image; } double scale = original ? (data.length>(1024*1024)?.7:.9) : (data.length>(1024*1024)?.5:.7); NSData *d = UIImageJPEGRepresentation(image, scale); return [UIImage imageWithData:d]; // CGSize size = CGSizeMake(ScalePhotoWidth, ScalePhotoWidth * image.size.height / image.size.width); // if (image.size.width < size.width // ) { // return image; // } // UIGraphicsBeginImageContext(size); // [image drawInRect:CGRectMake(0, 0, size.width, size.height)]; // UIImage *newImage = UIGraphicsGetImageFromCurrentImageContext(); // UIGraphicsEndImageContext(); // return newImage; } #pragma mark - 获取asset对应的图片 + (PHImageRequestID)requestImageForAsset:(PHAsset *)asset size:(CGSize)size resizeMode:(PHImageRequestOptionsResizeMode)resizeMode completion:(void (^)(UIImage *, NSDictionary *))completion { PHImageRequestOptions *option = [[PHImageRequestOptions alloc] init]; /** resizeMode：对请求的图像怎样缩放。有三种选择：None，默认加载方式；Fast，尽快地提供接近或稍微大于要求的尺寸；Exact，精准提供要求的尺寸。 deliveryMode：图像质量。有三种值：Opportunistic，在速度与质量中均衡；HighQualityFormat，不管花费多长时间，提供高质量图像；FastFormat，以最快速度提供好的质量。 这个属性只有在 synchronous 为 true 时有效。 */ option.resizeMode = resizeMode;//控制照片尺寸 // option.deliveryMode = PHImageRequestOptionsDeliveryModeOpportunistic;//控制照片质量 option.networkAccessAllowed = YES; /* info字典提供请求状态信息: PHImageResultIsInCloudKey：图像是否必须从iCloud请求 PHImageResultIsDegradedKey：当前UIImage是否是低质量的，这个可以实现给用户先显示一个预览图 PHImageResultRequestIDKey和PHImageCancelledKey：请求ID以及请求是否已经被取消 PHImageErrorKey：如果没有图像，字典内的错误信息 */ return [[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]; //不要该判断，即如果该图片在iCloud上时候，会先显示一张模糊的预览图，待加载完毕后会显示高清图 // && ![[info objectForKey:PHImageResultIsDegradedKey] boolValue] if (downloadFinined && completion) { completion(image, info); } }]; } + (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; } + (void)getPhotosBytesWithArray:(NSArray *)photos completion:(void (^)(NSString *photosBytes))completion { __block NSInteger dataLength = 0; __block NSInteger count = photos.count; __weak typeof(self) weakSelf = self; for (int i = 0; i < photos.count; i++) { ZLPhotoModel *model = photos[i]; [[PHCachingImageManager defaultManager] requestImageDataForAsset:model.asset options:nil resultHandler:^(NSData * _Nullable imageData, NSString * _Nullable dataUTI, UIImageOrientation orientation, NSDictionary * _Nullable info) { __strong typeof(weakSelf) strongSelf = weakSelf; dataLength += imageData.length; count--; if (count <= 0) { if (completion) { completion([strongSelf transformDataLength:dataLength]); } } }]; } } + (NSString *)transformDataLength:(NSInteger)dataLength { NSString *bytes = @""; if (dataLength >= 0.1 * (1024 * 1024)) { bytes = [NSString stringWithFormat:@"%.1fM",dataLength/1024/1024.0]; } else if (dataLength >= 1024) { bytes = [NSString stringWithFormat:@"%.0fK",dataLength/1024.0]; } else { bytes = [NSString stringWithFormat:@"%zdB",dataLength]; } return bytes; } + (void)markSelcectModelInArr:(NSArray *)dataArr selArr:(NSArray *)selArr { NSMutableArray *selIdentifiers = [NSMutableArray array]; for (ZLPhotoModel *m in selArr) { [selIdentifiers addObject:m.asset.localIdentifier]; } for (ZLPhotoModel *m in dataArr) { if ([selIdentifiers containsObject:m.asset.localIdentifier]) { m.selected = YES; } else { m.selected = NO; } } } + (UIImage *)transformToGifImageWithData:(NSData *)data { return [self sd_animatedGIFWithData:data]; } + (UIImage *)sd_animatedGIFWithData:(NSData *)data { if (!data) { return nil; } CGImageSourceRef source = CGImageSourceCreateWithData((__bridge CFDataRef)data, NULL); size_t count = CGImageSourceGetCount(source); UIImage *animatedImage; if (count <= 1) { animatedImage = [[UIImage alloc] initWithData:data]; } else { NSMutableArray *images = [NSMutableArray array]; NSTimeInterval duration = 0.0f; for (size_t i = 0; i < count; i++) { CGImageRef image = CGImageSourceCreateImageAtIndex(source, i, NULL); duration += [self sd_frameDurationAtIndex:i source:source]; [images addObject:[UIImage imageWithCGImage:image scale:[UIScreen mainScreen].scale orientation:UIImageOrientationUp]]; CGImageRelease(image); } if (!duration) { duration = (1.0f / 10.0f) * count; } animatedImage = [UIImage animatedImageWithImages:images duration:duration]; } CFRelease(source); return animatedImage; } + (float)sd_frameDurationAtIndex:(NSUInteger)index source:(CGImageSourceRef)source { float frameDuration = 0.1f; CFDictionaryRef cfFrameProperties = CGImageSourceCopyPropertiesAtIndex(source, index, nil); NSDictionary *frameProperties = (__bridge NSDictionary *)cfFrameProperties; NSDictionary *gifProperties = frameProperties[(NSString *)kCGImagePropertyGIFDictionary]; NSNumber *delayTimeUnclampedProp = gifProperties[(NSString *)kCGImagePropertyGIFUnclampedDelayTime]; if (delayTimeUnclampedProp) { frameDuration = [delayTimeUnclampedProp floatValue]; } else { NSNumber *delayTimeProp = gifProperties[(NSString *)kCGImagePropertyGIFDelayTime]; if (delayTimeProp) { frameDuration = [delayTimeProp floatValue]; } } // Many annoying ads specify a 0 duration to make an image flash as quickly as possible. // We follow Firefox's behavior and use a duration of 100 ms for any frames that specify // a duration of <= 10 ms. See and // for more information. if (frameDuration < 0.011f) { frameDuration = 0.100f; } CFRelease(cfFrameProperties); return frameDuration; } + (void)requestAssetFileUrl:(PHAsset *)asset complete:(void (^)(NSString *))complete { ZLAssetMediaType type = [self transformAssetType:asset]; if (type == ZLAssetMediaTypeVideo) { [self requestVideoForAsset:asset completion:^(AVPlayerItem *item, NSDictionary *info) { if ([[info objectForKey:PHImageResultIsDegradedKey] boolValue]) return; NSArray *arr = [info[@"PHImageFileSandboxExtensionTokenKey"] componentsSeparatedByString:@";"]; if (complete) { complete(arr.lastObject); } }]; } else { [self requestOriginalImageDataForAsset:asset completion:^(NSData *data, NSDictionary *info) { if ([[info objectForKey:PHImageResultIsDegradedKey] boolValue]) return; if (complete) { NSURL *url = info[@"PHImageFileURLKey"]; complete(url.absoluteString); } }]; } } #pragma mark - 编辑、导出视频相关 + (void)analysisEverySecondsImageForAsset:(PHAsset *)asset interval:(NSTimeInterval)interval size:(CGSize)size complete:(void (^)(AVAsset *, NSArray *))complete { PHVideoRequestOptions* options = [[PHVideoRequestOptions alloc] init]; options.version = PHVideoRequestOptionsVersionOriginal; options.deliveryMode = PHVideoRequestOptionsDeliveryModeAutomatic; options.networkAccessAllowed = YES; [[PHImageManager defaultManager] requestAVAssetForVideo:asset options:options resultHandler:^(AVAsset * _Nullable asset, AVAudioMix * _Nullable audioMix, NSDictionary * _Nullable info) { [self analysisAVAsset:asset interval:interval size:size complete:complete]; }]; } + (void)analysisAVAsset:(AVAsset *)asset interval:(NSTimeInterval)interval size:(CGSize)size complete:(void (^)(AVAsset *, NSArray *))complete { long duration = round(asset.duration.value) / asset.duration.timescale; AVAssetImageGenerator *generator = [[AVAssetImageGenerator alloc] initWithAsset:asset]; generator.maximumSize = size; generator.appliesPreferredTrackTransform = YES; generator.requestedTimeToleranceBefore = kCMTimeZero; generator.requestedTimeToleranceAfter = kCMTimeZero; //每秒的第一帧 NSMutableArray *arr = [NSMutableArray array]; for (int i = 0; i < duration; i += interval) { /* CMTimeMake(a,b) a当前第几帧, b每秒钟多少帧 */ //这里加上0.35 是为了避免解析0s图片必定失败的问题 CMTime time = CMTimeMake((i+0.35) * asset.duration.timescale, asset.duration.timescale); NSValue *value = [NSValue valueWithCMTime:time]; [arr addObject:value]; } NSMutableArray *arrImages = [NSMutableArray array]; __block long count = 0; [generator generateCGImagesAsynchronouslyForTimes:arr completionHandler:^(CMTime requestedTime, CGImageRef _Nullable image, CMTime actualTime, AVAssetImageGeneratorResult result, NSError * _Nullable error) { switch (result) { case AVAssetImageGeneratorSucceeded: [arrImages addObject:[UIImage imageWithCGImage:image]]; break; case AVAssetImageGeneratorFailed: NSLog(@"第%ld秒图片解析失败", count); break; case AVAssetImageGeneratorCancelled: NSLog(@"取消解析视频图片"); break; } count++; if (count == arr.count && complete) { dispatch_async(dispatch_get_main_queue(), ^{ complete(asset, arrImages); }); } }]; } + (void)exportEditVideoForAsset:(AVAsset *)asset range:(CMTimeRange)range type:(ZLExportVideoType)type complete:(void (^)(BOOL, PHAsset *))complete { [self export:asset range:range type:type presetName:AVAssetExportPresetPassthrough renderSize:CGSizeZero watermarkImage:nil watermarkLocation:ZLWatermarkLocationCenter imageSize:CGSizeZero complete:^(NSString *exportFilePath, NSError *error) { if (!error) { [self saveVideoToAblum:[NSURL URLWithString:exportFilePath] completion:^(BOOL isSuc, PHAsset *asset) { dispatch_async(dispatch_get_main_queue(), ^{ if (complete) complete(isSuc, asset); }); }]; } else { dispatch_async(dispatch_get_main_queue(), ^{ if (complete) complete(NO, nil); }); } }]; } + (void)exportVideoForAsset:(PHAsset *)asset type:(ZLExportVideoType)type complete:(void (^)(NSString *, NSError *))complete { [self exportVideoForAsset:asset type:type presetName:AVAssetExportPresetMediumQuality complete:complete]; } + (void)exportVideoForAsset:(PHAsset *)asset type:(ZLExportVideoType)type presetName:(NSString *)presetName complete:(void (^)(NSString *, NSError *))complete { if (asset.mediaType != PHAssetMediaTypeVideo) { if (complete) complete(nil, [NSError errorWithDomain:@"导出失败" code:-1 userInfo:@{@"message": @"导出对象不是视频对象"}]); return; } PHVideoRequestOptions* options = [[PHVideoRequestOptions alloc] init]; options.version = PHVideoRequestOptionsVersionOriginal; options.deliveryMode = PHVideoRequestOptionsDeliveryModeAutomatic; options.networkAccessAllowed = YES; [[PHImageManager defaultManager] requestAVAssetForVideo:asset options:options resultHandler:^(AVAsset * _Nullable asset, AVAudioMix * _Nullable audioMix, NSDictionary * _Nullable info) { [self export:asset range:CMTimeRangeMake(kCMTimeZero, kCMTimePositiveInfinity) type:type presetName:presetName renderSize:CGSizeZero watermarkImage:nil watermarkLocation:ZLWatermarkLocationCenter imageSize:CGSizeZero complete:^(NSString *exportFilePath, NSError *error) { dispatch_async(dispatch_get_main_queue(), ^{ if (complete) complete(exportFilePath, error); }); }]; }]; } + (void)exportVideoForAsset:(PHAsset *)asset type:(ZLExportVideoType)type renderSize:(CGSize)renderSize complete:(void (^)(NSString *, NSError *))complete { [self exportVideoForAsset:asset type:type renderSize:renderSize watermarkImage:nil watermarkLocation:ZLWatermarkLocationCenter imageSize:CGSizeZero complete:complete]; } #pragma mark - 视频加水印 + (void)exportVideoForAsset:(PHAsset *)asset type:(ZLExportVideoType)type renderSize:(CGSize)renderSize watermarkImage:(UIImage *)watermarkImage watermarkLocation:(ZLWatermarkLocation)location imageSize:(CGSize)imageSize complete:(void (^)(NSString *, NSError *))complete { [self export:asset type:type presetName:AVAssetExportPresetHighestQuality renderSize:renderSize watermarkImage:watermarkImage watermarkLocation:location imageSize:imageSize complete:complete]; } + (void)exportVideoForAsset:(PHAsset *)asset type:(ZLExportVideoType)type presetName:(NSString *)presetName watermarkImage:(UIImage *)watermarkImage watermarkLocation:(ZLWatermarkLocation)location imageSize:(CGSize)imageSize complete:(void (^)(NSString *, NSError *))complete { [self export:asset type:type presetName:presetName renderSize:CGSizeMake(CGFLOAT_MAX, CGFLOAT_MAX) watermarkImage:watermarkImage watermarkLocation:location imageSize:imageSize complete:complete]; } //privite + (void)export:(PHAsset *)asset type:(ZLExportVideoType)type presetName:(NSString *)presetName renderSize:(CGSize)renderSize watermarkImage:(UIImage *)watermarkImage watermarkLocation:(ZLWatermarkLocation)location imageSize:(CGSize)imageSize complete:(void (^)(NSString *, NSError *))complete { if (asset.mediaType != PHAssetMediaTypeVideo) { if (complete) complete(nil, [NSError errorWithDomain:@"导出失败" code:-1 userInfo:@{@"message": @"导出对象不是视频对象"}]); return; } PHVideoRequestOptions* options = [[PHVideoRequestOptions alloc] init]; options.version = PHVideoRequestOptionsVersionOriginal; options.deliveryMode = PHVideoRequestOptionsDeliveryModeAutomatic; options.networkAccessAllowed = YES; [[PHImageManager defaultManager] requestAVAssetForVideo:asset options:options resultHandler:^(AVAsset * _Nullable asset, AVAudioMix * _Nullable audioMix, NSDictionary * _Nullable info) { [self export:asset range:CMTimeRangeMake(kCMTimeZero, kCMTimePositiveInfinity) type:type presetName:presetName renderSize:renderSize watermarkImage:watermarkImage watermarkLocation:location imageSize:imageSize complete:^(NSString *exportFilePath, NSError *error) { dispatch_async(dispatch_get_main_queue(), ^{ if (complete) complete(exportFilePath, error); }); }]; }]; } + (void)export:(AVAsset *)asset range:(CMTimeRange)range type:(ZLExportVideoType)type presetName:(NSString *)presetName renderSize:(CGSize)renderSize watermarkImage:(UIImage *)watermarkImage watermarkLocation:(ZLWatermarkLocation)location imageSize:(CGSize)imageSize complete:(void (^)(NSString *exportFilePath, NSError *error))complete { NSString *exportFilePath = [self getVideoExportFilePath:type]; AVAssetExportSession *exportSession = [[AVAssetExportSession alloc] initWithAsset:asset presetName:presetName]; NSURL *exportFileUrl = [NSURL fileURLWithPath:exportFilePath]; exportSession.outputURL = exportFileUrl; exportSession.outputFileType = (type == ZLExportVideoTypeMov ? AVFileTypeQuickTimeMovie : AVFileTypeMPEG4); exportSession.timeRange = range; // exportSession.shouldOptimizeForNetworkUse = YES; if (!CGSizeEqualToSize(renderSize, CGSizeZero)) { AVMutableVideoComposition *com = [self getVideoComposition:asset renderSize:renderSize watermarkImage:watermarkImage watermarkLocation:location imageSize:imageSize]; if (!com) { if (complete) { complete(nil, [NSError errorWithDomain:@"视频裁剪导出失败" code:-1 userInfo:@{@"message": @"视频对象格式可能有错误，可能为无声视频，暂不支持"}]); } return; } exportSession.videoComposition = com; } [exportSession exportAsynchronouslyWithCompletionHandler:^{ BOOL suc = NO; switch ([exportSession status]) { case AVAssetExportSessionStatusFailed: NSLog(@"Export failed: %@", [[exportSession error] localizedDescription]); break; case AVAssetExportSessionStatusCancelled: NSLog(@"Export canceled"); break; case AVAssetExportSessionStatusCompleted:{ NSLog(@"Export completed"); suc = YES; } break; default: NSLog(@"Export other"); break; } if (complete) { complete(suc?exportFilePath:nil, suc?nil:exportSession.error); if (!suc) { [exportSession cancelExport]; } } }]; } + (AVMutableVideoComposition *)getVideoComposition:(AVAsset *)asset renderSize:(CGSize)renderSize watermarkImage:(UIImage *)watermarkImage watermarkLocation:(ZLWatermarkLocation)location imageSize:(CGSize)imageSize { AVMutableComposition *composition = [AVMutableComposition composition]; //视频通道 AVMutableCompositionTrack *assetVideoTrack = [composition addMutableTrackWithMediaType:AVMediaTypeVideo preferredTrackID:kCMPersistentTrackID_Invalid]; //音频通道 AVMutableCompositionTrack *assetAudioTrack = [composition addMutableTrackWithMediaType:AVMediaTypeAudio preferredTrackID:kCMPersistentTrackID_Invalid]; NSError *error = nil; //裁剪时长 CMTimeRange timeRange = CMTimeRangeMake(kCMTimeZero, asset.duration); AVAssetTrack *videoTrack = [asset tracksWithMediaType:AVMediaTypeVideo].firstObject; AVAssetTrack *audioTrack = [asset tracksWithMediaType:AVMediaTypeAudio].firstObject; if (!videoTrack || !audioTrack) { return nil; } [assetVideoTrack insertTimeRange:timeRange ofTrack:[asset tracksWithMediaType:AVMediaTypeVideo].firstObject atTime:kCMTimeZero error:&error]; NSLog(@"%@", error); [assetAudioTrack insertTimeRange:timeRange ofTrack:[asset tracksWithMediaType:AVMediaTypeAudio].firstObject atTime:kCMTimeZero error:&error]; NSLog(@"%@", error); if (error) { return nil; } AVMutableVideoCompositionInstruction *instruction = [AVMutableVideoCompositionInstruction videoCompositionInstruction]; instruction.timeRange = CMTimeRangeMake(kCMTimeZero, composition.duration); //处理视频旋转 AVMutableVideoCompositionLayerInstruction *layerInstruction = [AVMutableVideoCompositionLayerInstruction videoCompositionLayerInstructionWithAssetTrack:assetVideoTrack]; [layerInstruction setOpacity:0.0 atTime:assetVideoTrack.timeRange.duration]; //视频旋转，获取视频旋转角度，然后旋转对应角度，保持视频方向正确 CGFloat degree = [self getVideoDegree:[asset tracksWithMediaType:AVMediaTypeVideo].firstObject]; CGSize naturalSize = assetVideoTrack.naturalSize; CGAffineTransform mixedTransform = CGAffineTransformIdentity; //处理renderSize，不能大于视频宽高 CGFloat videoWidth = (degree==0 || degree==M_PI) ? naturalSize.width : naturalSize.height; CGFloat videoHeight = (degree==0 || degree==M_PI) ? naturalSize.height : naturalSize.width; CGSize cropSize = CGSizeMake(MIN(videoWidth, renderSize.width), MIN(videoHeight, renderSize.height)); CGFloat x, y; if (degree == M_PI_2) { //顺时针 90° CGAffineTransform t = CGAffineTransformMakeTranslation(naturalSize.height,.0); CGAffineTransform t1 = CGAffineTransformRotate(t, M_PI_2); //x为正向下 y为正向左 x = -(videoHeight-cropSize.height)/2; y = (videoWidth-cropSize.width)/2; mixedTransform = CGAffineTransformTranslate(t1, x, y); } else if (degree == M_PI) { //顺时针 180° CGAffineTransform t = CGAffineTransformMakeTranslation(naturalSize.width, naturalSize.height); CGAffineTransform t1 = CGAffineTransformRotate(t, M_PI); //x为正向左 y为正向上 x = (videoWidth-cropSize.width)/2; y = (videoHeight-cropSize.height)/2; mixedTransform = CGAffineTransformTranslate(t1, x, y); } else if (degree == (M_PI_2 * 3)) { //顺时针 270° CGAffineTransform t = CGAffineTransformMakeTranslation(.0, naturalSize.width); CGAffineTransform t1 = CGAffineTransformRotate(t, M_PI_2*3); //x为正向上 y为正向右 x = (videoHeight-cropSize.height)/2; y = -(videoWidth-cropSize.width)/2; mixedTransform = CGAffineTransformTranslate(t1, x, y); } else { //x为正向右 y为正向下 x = -(videoWidth-cropSize.width)/2; y = -(videoHeight-cropSize.height)/2; mixedTransform = CGAffineTransformMakeTranslation(x, y); } [layerInstruction setTransform:mixedTransform atTime:kCMTimeZero]; //管理所有需要处理的视频 AVMutableVideoComposition *videoComposition = [AVMutableVideoComposition videoComposition]; videoComposition.frameDuration = CMTimeMake(1, 30); videoComposition.renderScale = 1; videoComposition.renderSize = cropSize; instruction.layerInstructions = @[layerInstruction]; videoComposition.instructions = @[instruction]; //添加水印 if (watermarkImage) { [self addWatermark:videoComposition renderSize:cropSize watermarkImage:watermarkImage watermarkLocation:location imageSize:imageSize]; } return videoComposition; } + (CGFloat)getVideoDegree:(AVAssetTrack *)videoTrack { CGAffineTransform tf = videoTrack.preferredTransform; CGFloat degree = 0; if (tf.b == 1.0 && tf.c == -1.0) { degree = M_PI_2; } else if (tf.a == -1.0 && tf.d == -1.0) { degree = M_PI; } else if (tf.b == -1.0 && tf.c == 1.0) { degree = M_PI_2 * 3; } return degree; } + (void)addWatermark:(AVMutableVideoComposition *)videoCom renderSize:(CGSize)renderSize watermarkImage:(UIImage *)watermarkImage watermarkLocation:(ZLWatermarkLocation)location imageSize:(CGSize)imageSize { // CATextLayer *titleLayer = [CATextLayer layer]; // [titleLayer setFont:(__bridge CFTypeRef)[UIFont systemFontOfSize:25].fontName]; // titleLayer.contentsScale = 2; // [titleLayer setFont:@"HiraKakuProN-W3"]; // titleLayer.fontSize = 70; // titleLayer.wrapped = YES; // titleLayer.string = @"test"; // titleLayer.masksToBounds = YES; // titleLayer.foregroundColor = [[UIColor blueColor] CGColor]; // titleLayer.alignmentMode = kCAAlignmentCenter; // titleLayer.frame = CGRectMake(20, 0, renderSize.width-40, 100); // titleLayer.backgroundColor = [UIColor whiteColor].CGColor; //图片 CALayer *imageLayer = [CALayer layer]; imageLayer.contents = (id)watermarkImage.CGImage; //坐标起点为左下角，向右为x正，向上为y正 switch (location) { case ZLWatermarkLocationTopLeft: imageLayer.frame = CGRectMake(10, renderSize.height-imageSize.height-10, imageSize.width, imageSize.height); break; case ZLWatermarkLocationTopRight: imageLayer.frame = CGRectMake(renderSize.width-imageSize.width-10, renderSize.height-imageSize.height-10, imageSize.width, imageSize.height); break; case ZLWatermarkLocationBottomLeft: imageLayer.frame = CGRectMake(10, 10, imageSize.width, imageSize.height); break; case ZLWatermarkLocationBottomRight: imageLayer.frame = CGRectMake(renderSize.width-imageSize.width-10, 10, imageSize.width, imageSize.height); break; case ZLWatermarkLocationCenter: imageLayer.frame = CGRectMake((renderSize.width-imageSize.width)/2, (renderSize.height-imageSize.height)/2, imageSize.width, imageSize.height); break; } CALayer *overlayLayer = [CALayer layer]; overlayLayer.frame = (CGRect){CGPointZero, renderSize}; [overlayLayer addSublayer:imageLayer]; CALayer *parentLayer = [CALayer layer]; CALayer *videoLayer = [CALayer layer]; parentLayer.backgroundColor = [UIColor clearColor].CGColor; parentLayer.frame = (CGRect){CGPointZero, renderSize}; videoLayer.frame = (CGRect){CGPointZero, renderSize}; [parentLayer addSublayer:videoLayer]; [parentLayer addSublayer:overlayLayer]; videoCom.animationTool = [AVVideoCompositionCoreAnimationTool videoCompositionCoreAnimationToolWithPostProcessingAsVideoLayer:videoLayer inLayer:parentLayer]; } + (void)applyVideoEffectsToComposition:(AVMutableVideoComposition *)composition WithWaterprintImage:(UIImage*)img withTitleText:(NSString*)titleText size:(CGSize)size iconSize:(CGSize)iconSize { //添加水印 也可以添加多个 CGFloat imgLayerWidth = iconSize.width; CGFloat imgLayerHeight = iconSize.height; CALayer *imgLayer = [CALayer layer]; imgLayer.contents = (id)img.CGImage; imgLayer.frame = CGRectMake(size.width - imgLayerWidth, size.height - imgLayerWidth - 25, imgLayerWidth, imgLayerHeight); //添加文字 UIFont *font = [UIFont systemFontOfSize:30.0]; CATextLayer *subtitle1Text = [[CATextLayer alloc] init]; [subtitle1Text setFontSize:30]; [subtitle1Text setString:titleText]; [subtitle1Text setAlignmentMode:kCAAlignmentLeft]; [subtitle1Text setForegroundColor:[[UIColor whiteColor] CGColor]]; subtitle1Text.backgroundColor = [UIColor blackColor].CGColor; // [subtitle1Text setBackgroundColor:[UIColor colorWithRed:0 green:0 blue:0 alpha:0.5].CGColor]; CGSize textSize = [titleText sizeWithAttributes:[NSDictionary dictionaryWithObjectsAndKeys:font,NSFontAttributeName, nil]]; CGFloat txtH = textSize.height + 10; CGFloat txtY = size.height - txtH - imgLayerWidth - 25; [subtitle1Text setFrame:CGRectMake(imgLayer.frame.origin.x + 5, txtY, imgLayerWidth, txtH)]; //把文字和图标都添加到layer CALayer *overlayLayer = [CALayer layer]; [overlayLayer addSublayer:subtitle1Text]; [overlayLayer addSublayer:imgLayer]; overlayLayer.frame = CGRectMake(0, 0, size.width, size.height); [overlayLayer setMasksToBounds:YES]; CALayer *parentLayer = [CALayer layer]; CALayer *videoLayer = [CALayer layer]; parentLayer.frame = CGRectMake(0, 0, size.width, size.height); videoLayer.frame = CGRectMake(0, 0, size.width, size.height); [parentLayer addSublayer:videoLayer]; [parentLayer addSublayer:overlayLayer]; //设置封面 // CABasicAnimation *anima = [CABasicAnimation animationWithKeyPath:@"opacity"]; // anima.fromValue = [NSNumber numberWithFloat:1.0f]; // anima.toValue = [NSNumber numberWithFloat:0.0f]; // anima.repeatCount = 0; // anima.duration = 5.0f; //5s之后消失 // [anima setRemovedOnCompletion:NO]; // [anima setFillMode:kCAFillModeForwards]; // anima.beginTime = AVCoreAnimationBeginTimeAtZero; // [coverImgLayer addAnimation:anima forKey:@"opacityAniamtion"]; composition.animationTool = [AVVideoCompositionCoreAnimationTool videoCompositionCoreAnimationToolWithPostProcessingAsVideoLayer:videoLayer inLayer:parentLayer]; } + (NSString *)getVideoExportFilePath:(ZLExportVideoType)type { NSString *format = (type == ZLExportVideoTypeMov ? @"mov" : @"mp4"); NSString *exportFilePath = [NSTemporaryDirectory() stringByAppendingPathComponent:[NSString stringWithFormat:@"%@.%@", [self getUniqueStrByUUID], format]]; return exportFilePath; } + (NSString *)getUniqueStrByUUID { CFUUIDRef uuidObj = CFUUIDCreate(nil);//create a new UUID //get the string representation of the UUID CFStringRef uuidString = CFUUIDCreateString(nil, uuidObj); NSString *str = [NSString stringWithString:(__bridge NSString *)uuidString]; CFRelease(uuidObj); CFRelease(uuidString); return [str lowercaseString]; } #pragma mark - 权限相关 + (BOOL)havePhotoLibraryAuthority { PHAuthorizationStatus status = [PHPhotoLibrary authorizationStatus]; if (status == PHAuthorizationStatusAuthorized) { return YES; } return NO; } + (BOOL)haveCameraAuthority { AVAuthorizationStatus status = [AVCaptureDevice authorizationStatusForMediaType:AVMediaTypeVideo]; if (status == AVAuthorizationStatusRestricted || status == AVAuthorizationStatusDenied) { return NO; } return YES; } + (BOOL)haveMicrophoneAuthority { AVAuthorizationStatus status = [AVCaptureDevice authorizationStatusForMediaType:AVMediaTypeAudio]; if (status == AVAuthorizationStatusRestricted || status == AVAuthorizationStatusDenied) { return NO; } return YES; } @end