2014/10/15 下午 10:13:24

iphone Programming Glossary: resultblock

Save Photos to Custom Album in iPhones Photo Library

http://stackoverflow.com/questions/10954380/save-photos-to-custom-album-in-iphones-photo-library

UIImagePickerControllerReferenceURL ALAssetsLibrary library ALAssetsLibrary alloc init library assetForURL assetURL resultBlock ALAssetsLibraryAssetForURLResultBlock failureBlock ^ NSError error code snipped out getimage from imagePicker and resize.. out code snipped out create a new album called My Apps Photos library addAssetsGroupAlbumWithName @ My Apps Photos resultBlock ^ ALAssetsGroup group NSLog @ in addAssetsGroupAlbumWithName resultBlock save file to album UIImageWriteToSavedPhotosAlbum.. @ My Apps Photos resultBlock ^ ALAssetsGroup group NSLog @ in addAssetsGroupAlbumWithName resultBlock save file to album UIImageWriteToSavedPhotosAlbum resizedImage self nil nil failureBlock ^ NSError error NSLog @ in..

How to convert image path to uiimage using ALAssetsLibrary

http://stackoverflow.com/questions/11721762/how-to-convert-image-path-to-uiimage-using-alassetslibrary

the help. ALAssetsLibrary library ALAssetsLibrary alloc init autorelease library assetForURL filePath objectAtIndex 0 resultBlock ^ ALAsset asset UIImage image UIImage imageWithCGImage asset defaultRepresentation fullResolutionImage fileImage addObject.. assetslibrary ALAssetsLibrary alloc init autorelease assetslibrary assetForURL filePath objectAtIndex 0 resultBlock resultblock failureBlock failureblock Note Make sure your filePath objectAtIndex 0 will be a NSUrl object. Else convert..

ALAsset Photo Library Image Performance Improvements When Its Loading Slow

http://stackoverflow.com/questions/13508535/alasset-photo-library-image-performance-improvements-when-its-loading-slow

arrayIndex intValue ALAssetsLibrary assetslibrary ALAssetsLibrary alloc init assetslibrary assetForURL asseturl resultBlock resultblock failureBlock failureblock Where itemToAdd is a UIImageView define in interface __block UIImageView itemToAdd.. arrayIndex intValue ALAssetsLibrary assetslibrary ALAssetsLibrary alloc init assetslibrary assetForURL asseturl resultBlock resultblock failureBlock failureblock Also change the order of viewWillAppear void viewWillAppear BOOL animated self.scrollView.delegate..

Unable to load image from asset URL

http://stackoverflow.com/questions/14496910/unable-to-load-image-from-asset-url

display image from URL retrieved from ALAsset in iPhone

http://stackoverflow.com/questions/3837115/display-image-from-url-retrieved-from-alasset-in-iphone

mediaurl ALAssetsLibrary assetslibrary ALAssetsLibrary alloc init autorelease assetslibrary assetForURL asseturl resultBlock resultblock failureBlock failureblock A couple of things to note are that this uses blocks which were new to me before..

Getting video from ALAsset

http://stackoverflow.com/questions/4545982/getting-video-from-alasset

How do I get a thumbnail or saveable path from UIImagePickerController to use for a UIImageView?

http://stackoverflow.com/questions/4663019/how-do-i-get-a-thumbnail-or-saveable-path-from-uiimagepickercontroller-to-use-fo

if imageURL ALAssetsLibrary assetslibrary ALAssetsLibrary alloc init autorelease assetslibrary assetForURL imageURL resultBlock resultblock failureBlock failureblock self dismissModalViewControllerAnimated YES If you don't want the thumbnail but do..

iPhone Get UIImagePickerController Lat/Lng

http://stackoverflow.com/questions/6177606/iphone-get-uiimagepickercontroller-lat-lng

picker will give you a dictionary which contains an url that points to the asset. The ALAssetsLibrary's assetForURL resultBlock ailureBlock method uses blocks. You can read more about them from example here http developer.apple.com library ios #featuredarticles.. handle results ALAssetsLibrary assetslibrary ALAssetsLibrary alloc init autorelease assetslibrary assetForURL url resultBlock resultblock failureBlock failureblock picker dismissModalViewControllerAnimated YES picker release And next the method..

Wait for assetForURL blocks to be completed

http://stackoverflow.com/questions/7234445/wait-for-assetforurl-blocks-to-be-completed

dico objectForKey @ assetUrl NSLog @ asset url @ asseturl Try to load asset at mediaURL library assetForURL asseturl resultBlock ^ ALAsset asset If asset doesn't exists if asset objectsToRemove addObject dico else tmpListAsset addObject asseturl absoluteString.. DISPATCH_QUEUE_PRIORITY_DEFAULT 0 for NSURL url in self.assetUrls dispatch_async queue ^ libary assetForURL url resultBlock ^ ALAsset asset self.assets addObject asset dispatch_semaphore_signal sema failureBlock ^ NSError error dispatch_semaphore_signal..

Using ALAssetsLibrary and ALAsset take out Image as NSData

http://stackoverflow.com/questions/8473110/using-alassetslibrary-and-alasset-take-out-image-as-nsdata

manner. NSURL referenceURL newURL ALAssetsLibrary library ALAssetsLibrary alloc init library assetForURL referenceURL resultBlock ^ ALAsset asset UIImage copyOfOriginalImage UIImage imageWithCGImage asset defaultRepresentation fullResolutionImage Now.. alloc init assetLibrary assetForURL self.imagedata objectAtIndex i valueForKey UIImagePickerControllerReferenceURL resultBlock ^ ALAsset asset ALAssetRepresentation rep asset defaultRepresentation Byte buffer Byte malloc rep.size NSUInteger buffered..

How Do I Get The Correct Latitude and Longitude From An Uploaded iPhone Photo?

http://stackoverflow.com/questions/9319465/how-do-i-get-the-correct-latitude-and-longitude-from-an-uploaded-iphone-photo

Get Exif data from UIImage - UIImagePickerController

http://stackoverflow.com/questions/9766394/get-exif-data-from-uiimage-uiimagepickercontroller

library ALAssetsLibrary alloc init library assetForURL info objectForKey UIImagePickerControllerReferenceURL resultBlock ^ ALAsset asset ALAssetRepresentation image_representation asset defaultRepresentation create a buffer to hold image data..

How to convert image path to uiimage using ALAssetsLibrary

http://stackoverflow.com/questions/11721762/how-to-convert-image-path-to-uiimage-using-alassetslibrary

ALAsset asset typedef void ^ALAssetsLibraryAccessFailureBlock NSError error ALAssetsLibraryAssetForURLResultBlock resultblock ^ ALAsset myasset ALAssetRepresentation rep myasset defaultRepresentation CGImageRef iref rep fullResolutionImage if iref.. assetslibrary ALAssetsLibrary alloc init autorelease assetslibrary assetForURL filePath objectAtIndex 0 resultBlock resultblock failureBlock failureblock Note Make sure your filePath objectAtIndex 0 will be a NSUrl object. Else convert it to NSUrl..

ALAsset Photo Library Image Performance Improvements When Its Loading Slow

http://stackoverflow.com/questions/13508535/alasset-photo-library-image-performance-improvements-when-its-loading-slow

i create new UIImageView with asset url void findLargeImage NSNumber arrayIndex ALAssetsLibraryAssetForURLResultBlock resultblock ^ ALAsset myasset ALAssetRepresentation rep if myasset defaultRepresentation nil return else rep myasset defaultRepresentation.. intValue ALAssetsLibrary assetslibrary ALAssetsLibrary alloc init assetslibrary assetForURL asseturl resultBlock resultblock failureBlock failureblock Where itemToAdd is a UIImageView define in interface __block UIImageView itemToAdd And scrollView.. UIImage imageWithCGImage iref Example void findLargeImage NSNumber arrayIndex ALAssetsLibraryAssetForURLResultBlock resultblock ^ ALAsset myasset CGImageRef iref myasset aspectRatioThumbnail dispatch_sync dispatch_get_main_queue ^ itemToAdd UIImageView..

Unable to load image from asset URL

http://stackoverflow.com/questions/14496910/unable-to-load-image-from-asset-url

to your project and add header files. Use the below code for loading image ALAssetsLibraryAssetForURLResultBlock resultblock ^ ALAsset myasset ALAssetRepresentation rep myasset defaultRepresentation CGImageRef iref rep fullResolutionImage if iref..

display image from URL retrieved from ALAsset in iPhone

http://stackoverflow.com/questions/3837115/display-image-from-url-retrieved-from-alasset-in-iphone

source. void findLargeImage NSString mediaurl self.node valueForKey kVMMediaURL ALAssetsLibraryAssetForURLResultBlock resultblock ^ ALAsset myasset ALAssetRepresentation rep myasset defaultRepresentation CGImageRef iref rep fullResolutionImage if iref.. ALAssetsLibrary assetslibrary ALAssetsLibrary alloc init autorelease assetslibrary assetForURL asseturl resultBlock resultblock failureBlock failureblock A couple of things to note are that this uses blocks which were new to me before I started my.. but if you think of them as notification selectors or callbacks it kind of helps. Also when findLargeImage returns the resultblock wont have run yet as its a callback. So largeImage wont be valid yet. largeImage needs to be an instance variable not scoped..

Getting video from ALAsset

http://stackoverflow.com/questions/4545982/getting-video-from-alasset

NSString tmpfile NSTemporaryDirectory stringByAppendingPathComponent filename ALAssetsLibraryAssetForURLResultBlock resultblock ^ ALAsset myasset ALAssetRepresentation rep myasset defaultRepresentation NSUInteger size rep size const int bufferSize..

How do I get a thumbnail or saveable path from UIImagePickerController to use for a UIImageView?

http://stackoverflow.com/questions/4663019/how-do-i-get-a-thumbnail-or-saveable-path-from-uiimagepickercontroller-to-use-fo

imageURL info valueForKey UIImagePickerControllerReferenceURL NSLog @ @ imageURL ALAssetsLibraryAssetForURLResultBlock resultblock ^ ALAsset myasset CGImageRef iref myasset thumbnail if iref UIImage theThumbnail UIImage imageWithCGImage iref self photo.. ALAssetsLibrary assetslibrary ALAssetsLibrary alloc init autorelease assetslibrary assetForURL imageURL resultBlock resultblock failureBlock failureblock self dismissModalViewControllerAnimated YES If you don't want the thumbnail but do want the full..

iPhone Get UIImagePickerController Lat/Lng

http://stackoverflow.com/questions/6177606/iphone-get-uiimagepickercontroller-lat-lng

We need to use blocks. This block will handle the ALAsset that's returned ALAssetsLibraryAssetForURLResultBlock resultblock ^ ALAsset myasset Get the location property from the asset CLLocation location myasset valueForProperty ALAssetPropertyLocation.. ALAssetsLibrary assetslibrary ALAssetsLibrary alloc init autorelease assetslibrary assetForURL url resultBlock resultblock failureBlock failureblock picker dismissModalViewControllerAnimated YES picker release And next the method that handles..