2014/10/15 下午 10:05:22

iphone Programming Glossary: completionblock

http://stackoverflow.com/questions/3884060/saving-geotag-info-with-photo-on-ios4-1

following ALAssetsLibrary API void writeImageDataToSavedPhotosAlbum NSData imageData metadata NSDictionary metadata completionBlock ALAssetsLibraryWriteImageCompletionBlock completionBlock I have the GPS coordinates that i wish to save with the photo as.. NSData imageData metadata NSDictionary metadata completionBlock ALAssetsLibraryWriteImageCompletionBlock completionBlock I have the GPS coordinates that i wish to save with the photo as an input. Unfortunately there is no documentation or sample..

iPhone: How do I get the file path of an image saved with UIImageWriteToSavedPhotosAlbum()?

http://stackoverflow.com/questions/4457904/iphone-how-do-i-get-the-file-path-of-an-image-saved-with-uiimagewritetosavedpho

roll library writeImageToSavedPhotosAlbum viewImage CGImage orientation ALAssetOrientation viewImage imageOrientation completionBlock ^ NSURL assetURL NSError error if error NSLog @ error else NSLog @ url @ assetURL library release And that gets the path..

Drawing waveform with AVAssetReader

http://stackoverflow.com/questions/5032775/drawing-waveform-with-avassetreader

NSURL fileURLWithPath assetFilepath Now the init method that does the business id initWithMPMediaItem MPMediaItem item completionBlock void ^ UIImage delayedImagePreparation completionBlock NSFileManager fman NSFileManager defaultManager NSString assetPictogramFilepath.. that does the business id initWithMPMediaItem MPMediaItem item completionBlock void ^ UIImage delayedImagePreparation completionBlock NSFileManager fman NSFileManager defaultManager NSString assetPictogramFilepath self class cachedAudioPictogramPathForMPMediaItem.. writeToFile assetPictogramFilepath atomically YES assetFileURL release assetPictogramFilepath release if completionBlock waveFormData retain NSThread MCSM_performBlockOnMainThread ^ UIImage result UIImage imageWithData waveFormData NSLog..

iPhone:Programmatically compressing recorded video to share?

http://stackoverflow.com/questions/5687341/iphoneprogrammatically-compressing-recorded-video-to-share

mainQueue ^ ALAssetsLibrary library ALAssetsLibrary alloc init autorelease ALAssetsLibraryWriteVideoCompletionBlock completionBlock ^ NSURL assetURL NSError error NSLog @ Saved URL @ assetURL NSLog @ Error @ error if assetURL nil AVURLAsset theAsset AVURLAsset.. break default self mediaIsReady break library writeVideoAtPathToSavedPhotosAlbum NSURL URLWithString videoURL completionBlock completionBlock iphone share improve this question If you are wanting to compress the video for remote sharing and.. self mediaIsReady break library writeVideoAtPathToSavedPhotosAlbum NSURL URLWithString videoURL completionBlock completionBlock iphone share improve this question If you are wanting to compress the video for remote sharing and to keep the original..

AFNetworking Uploading a file

http://stackoverflow.com/questions/8234186/afnetworking-uploading-a-file

was removed a few versions back. Instead you can do AFHTTPRequestOperation alloc initWithRequest ... and then set the completionBlock with either the straight property accessor operation.completionBlock ^ ... or with setCompletionBlockWithSuccess failure.. alloc initWithRequest ... and then set the completionBlock with either the straight property accessor operation.completionBlock ^ ... or with setCompletionBlockWithSuccess failure . Keep in mind that completion blocks execute after the request has..

How do I create a global UIManagedDocument instance per document-on-disk shared by my whole application using blocks?

http://stackoverflow.com/questions/9204025/how-do-i-create-a-global-uimanageddocument-instance-per-document-on-disk-shared

has opened @implementation MyVacationsHelper void openVacation NSString vacationName usingBlock completion_block_t completionBlock Try to retrieve the relevant UIManagedDocument from managedDocumentDictionary UIManagedDocument doc managedDocumentDictionary.. NSFileManager defaultManager fileExistsAtPath url path doc openWithCompletionHandler ^ BOOL success Can I call the completionBlock from above in here How do I pass back the opened UIDocument else doc saveToURL url forSaveOperation UIDocumentSaveForCreating.. comments above iphone objective c ios blocks cs193p share improve this question You can execute the block with completionBlock doc . doc openWithCompletionHandler ^ BOOL success Can I call the completionBlock from above in here How do I pass back..