photokit

I am using the code below for fetching an image: [[PHImageManager defaultManager] requestImageForAsset:asset targetSize:CGSizeMake(800, 600) contentMode:PHImageContentModeAspectFill options:options resultHandler:^(UIImage *result, NSDictionary *info) { NSLog(@"size:%@",NSStringFromCGSize(result.size)); }]; I'm requesting an image size of 800 x 600, but I'm getting an image size of 45 x 60, which is very poor-quality. How can i get the requested image size using PhotoKit ? Your (Unnati's) self answer will work, however it misses out on a number of the optimisations which Apple give you in their

What is the best way to upload videos from gallery using Photos framework? Before I used ALAssetRepresentation and next method: - (NSUInteger)getBytes:(uint8_t *)buffer fromOffset:(long long)offset length:(NSUInteger)length error:(NSError **)error; this allowed to upload file without first copying it to app temp directory. Don’t see any alternatives in Photos framework. Only way seems to use AVAssetExportSession -> export to local directory -> upload, but this requires additional storage space (could be a problem, if video is too big) Seems the only valid way is to request AVAsset from

In iOS 8, with the new PhotoKit, the way to create a new image is with -[PHPhotoLibrary performChanges:completionHandler] , in this way: [[PHPhotoLibrary sharedPhotoLibrary] performChanges:^{ PHAssetChangeRequest *changeRequest = [PHAssetChangeRequest creationRequestForAssetFromImage:image]; // TODO set metadata? } completionHandler:^(BOOL success, NSError *error) { if(success) { // do stuff } }]; However, I can't find any documentation on how to set metadata on the image. In the old ALAssetLibrary (which still works, and may still be the 'correct' way going forward), you would just use -

As of iOS8, when you delete a photo, it goes into a trashcan-analog called "Recently Deleted". This happens when you delete via Photos.app, or via the PhotoKit API (using PHAssetChangeRequest.deleteAssets() ). In Photos.app, you can then go into "Recently Deleted", and really delete that photo. Is there a way to do that in PhotoKit? Nope. The only deletion API is deleteAssets . 来源： https://stackoverflow.com/questions/26934777/delete-in-photokit-can-you-skip-recently-deleted

I am currently using ALAsset framework for saving an image from Photo library to documents directory with metadata. The code I use is ALAssetsLibrary *library = [[[ALAssetsLibrary alloc] init] autorelease]; [library assetForURL:[NSURL URLWithString:miv.assetURL] resultBlock:^(ALAsset *asset) { ALAssetRepresentation *image_representation = [asset defaultRepresentation]; CGImageSourceRef source = Nil; uint8_t *buffer = (Byte*)malloc(image_representation.size); NSUInteger length = [image_representation getBytes:buffer fromOffset: 0.0 length:image_representation.size error:nil]; if (length != 0) {