phasset

问题 I want to get Photo from My Photo Stream. I have only localIdentifier of PHAsset. For photos other than My Photo Stream album I am using below code for retrieve PHAsset. [PHAsset fetchAssetsWithLocalIdentifiers:@[“localIdentifier”] options:nil].firstObject localIdentifier is like ' 1BFC3BA2-AC95-403A-B4FF-B26AFB631581/L0/001 ' it's working fine. But in my My Photo Stream album I am getting nil value of PHAsset. Does anyone having a idea how we can get original Photo from My Photo Stream using

问题 Working with new Photo framework, I can access the NSData of PHAssets using requestImageDataForAsset . I can also access the file URL using the PHImageFileURLKey of the returned info NSDictionary . [[PHImageManager defaultManager] requestImageDataForAsset:asset options:nil resultHandler:^(NSData *imageData, NSString *dataUTI, UIImageOrientation orientation, NSDictionary *info) { //imageData contains the correct data for images and videos NSLog(@"info - %@", info); NSURL* fileURL = [info

问题 I have list of selected images from Photos gallery. The array list contain selected PHAssets from Photos <PHAsset: 0x131334350> 768AD8BA-FE7A-4EE9-B2CF-4DD4AEBE2AE9/L0/001 mediaType=1/0, sourceType=1, (2448x3264), creationDate=2016-03-11 06:50:09 +0000, location=1, hidden=0, favorite=0 ", "<PHAsset: 0x131334260> CA962E42-A367-4E8D-85C8-934F8C76FE78/L0/001 mediaType=1/0, sourceType=1, (2448x3264), creationDate=2016-03-11 06:50:08 +0000, location=1, hidden=0, favorite=0 " Now i want to store

问题 i have an application where i am loading large amount of images from database and showing them in my gallery, what i was doing earlier is i was getting photo url (local identifier) from PHAsset and then accessing the image using PHCacheManager, but it slows down my scrolling and also shows lags while updating images in new cell. I was trying to use SDWebImage here by passing the url to the sd_setImageWithURL: method, however i found out that the URL is actually a local identifier which is not

问题 I am trying to fetch images from photo library within the range of two dates and I am getting the images successfully. And I am also getting the info of the image by using below code. PHContentEditingInputRequestOptions *options = [[PHContentEditingInputRequestOptions alloc] init]; options.networkAccessAllowed = YES; //download asset metadata from iCloud if needed [asset requestContentEditingInputWithOptions:options completionHandler:^(PHContentEditingInput *contentEditingInput, NSDictionary

问题 I am fetching videos from PHAsset so user can choose the video and import to perform edit. But user should be only able to select video with Landscape orientation, if user select portrait video, she/he would get alert message saying that its portrait video and hence can not import to edit. One way to do this is creating AVAsset from URL of PHFetchResults, and then checking a preferedTransform, but that would be very costly operation to do right? Is there a way to do this without creating

问题 I am trying to fetch images from photo library within the range of two dates and I am getting the images successfully. Using PHAsset Library Now the problem is that am not able to get images between two times of the same day like between 12:10PM to 12:30PM Using below code NSDate *startDate = [self getDateForDay:30 andMonth:9 andYear:2016 andHour:12 andMinute:10 andSecond:0]; NSDate *endDate = [self getDateForDay:30 andMonth:9 andYear:2016 andHour:12 andMinute:30 andSecond:0]; -- -(NSDate*)

问题 I want to upload a PHAsset to the server. Now my PHAsset can be a photo or a video. I am able to do it successfully for the PHAssets present on the local device. But what if the PHAsset is not on the local device and instead present on the iCloud. Can we upload directly from the iCloud to the server or do we have to first download to the local device and then to upload operation to the server. Also, I would be grateful if someone could tell how to do this. Update: when we allow the network

问题 I'm trying to save an image with exif metadata using following code: +(void)saveImageWithMetaToCameraRoll:(UIImage*)image location:(CLLocation*)location album:(PHAssetCollection *)album exif:(NSDictionary *)metadata isOriginal:(BOOL)isOriginal isFavorite:(BOOL)isFavorite completionBlock:(PHAssetBoolBlock)completionBlock { NSMutableDictionary *meta = [metadata mutableCopy]; NSData *imageData = UIImageJPEGRepresentation(image, 1.0f); CGImageSourceRef source = CGImageSourceCreateWithData((_

问题 I wonder if there any way to get the original file name using PHAsset? I use the following code to extract the file info. [[PHImageManager defaultManager] requestImageDataForAsset:asset options:requestOption resultHandler:^(NSData *imageData, NSString *dataUTI, UIImageOrientation orientation, NSDictionary *info) { entity.fileUrl = [info objectForKey:@"PHImageFileURLKey"]; entity.filename = [[NSFileManager defaultManager] displayNameAtPath:[ entity.fileUrl path]]; }]; However, It doesn't