¡@
2014/10/15 ¤U¤È 10:03:32
iphone Programming Glossary: alassetslibraryALAsset Photo Library Image Performance Improvements When Its Loading Slow http://stackoverflow.com/questions/13508535/alasset-photo-library-image-performance-improvements-when-its-loading-slow an image on my scrollView. At first i create new UIImageView with asset url void findLargeImage NSNumber arrayIndex ALAssetsLibraryAssetForURLResultBlock resultblock ^ ALAsset myasset ALAssetRepresentation rep if myasset defaultRepresentation nil return.. arrayIndex intValue 320 0 320 320 itemToAdd.image UIImage imageWithCGImage iref self.scrollView addSubview itemToAdd ALAssetsLibraryAccessFailureBlock failureblock ^ NSError myerror NSLog @ Cant get image @ myerror localizedDescription NSURL asseturl NSURL.. @ myerror localizedDescription NSURL asseturl NSURL URLWithString self.photoPath objectAtIndex arrayIndex intValue ALAssetsLibrary assetslibrary ALAssetsLibrary alloc init assetslibrary assetForURL asseturl resultBlock resultblock failureBlock failureblock..
Unable to load image from asset URL http://stackoverflow.com/questions/14496910/unable-to-load-image-from-asset-url ext JPG iphone alassetslibrary share improve this question You can't load images in this way. You need to use ALAssetsLibrary class for this. Add assetslibrary framework to your project and add header files. Use the below code for loading image ALAssetsLibraryAssetForURLResultBlock.. class for this. Add assetslibrary framework to your project and add header files. Use the below code for loading image ALAssetsLibraryAssetForURLResultBlock resultblock ^ ALAsset myasset ALAssetRepresentation rep myasset defaultRepresentation CGImageRef iref.. iref rep fullResolutionImage if iref UIImage largeimage UIImage imageWithCGImage iref yourImageView.image largeImage ALAssetsLibraryAccessFailureBlock failureblock ^ NSError myerror NSLog @ Can't get image @ myerror localizedDescription NSURL asseturl NSURL..
display image from URL retrieved from ALAsset in iPhone http://stackoverflow.com/questions/3837115/display-image-from-url-retrieved-from-alasset-in-iphone ALAsset object via the URL. so from the docs for ALAssetLibrary throw this in a header or your source typedef void ^ALAssetsLibraryAssetForURLResultBlock ALAsset asset typedef void ^ALAssetsLibraryAccessFailureBlock NSError error which isnt strictly needed.. throw this in a header or your source typedef void ^ALAssetsLibraryAssetForURLResultBlock ALAsset asset typedef void ^ALAssetsLibraryAccessFailureBlock NSError error which isnt strictly needed but keeps things pretty. and then in your source. void findLargeImage.. keeps things pretty. and then in your source. void findLargeImage NSString mediaurl self.node valueForKey kVMMediaURL ALAssetsLibraryAssetForURLResultBlock resultblock ^ ALAsset myasset ALAssetRepresentation rep myasset defaultRepresentation CGImageRef..
Saving Geotag info with photo on iOS4.1 http://stackoverflow.com/questions/3884060/saving-geotag-info-with-photo-on-ios4-1 I am having major issues trying to save a photo to camera roll with geotag info on iOS4.1. I am using following ALAssetsLibrary API void writeImageDataToSavedPhotosAlbum NSData imageData metadata NSDictionary metadata completionBlock ALAssetsLibraryWriteImageCompletionBlock.. 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 an input. Unfortunately..
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 is no good. However in ios4 Apple put in a new framework to handle the photo library called the ALAssetsLibrary. First you need to right click on the Targets and in the build part add the AlAsset Framework to your project with the little.. your class. Finally you can use the following code UIImage viewImage YOUR UIIMAGE mine was made from drawing context ALAssetsLibrary library ALAssetsLibrary alloc init Request to save the image to camera roll library writeImageToSavedPhotosAlbum viewImage.. can use the following code UIImage viewImage YOUR UIIMAGE mine was made from drawing context ALAssetsLibrary library ALAssetsLibrary alloc init Request to save the image to camera roll library writeImageToSavedPhotosAlbum viewImage CGImage orientation ALAssetOrientation..
http://stackoverflow.com/questions/4545982/getting-video-from-alasset NSString stringWithFormat @ f. @ ti ext NSString tmpfile NSTemporaryDirectory stringByAppendingPathComponent filename ALAssetsLibraryAssetForURLResultBlock resultblock ^ ALAsset myasset ALAssetRepresentation rep myasset defaultRepresentation NSUInteger.. offset length bufferSize error err written fwrite buffer sizeof char read f offset read while read 0 fclose f ALAssetsLibraryAccessFailureBlock failureblock ^ NSError myerror NSLog @ Can not get asset @ myerror localizedDescription if url ALAssetsLibrary.. failureblock ^ NSError myerror NSLog @ Can not get asset @ myerror localizedDescription if url ALAssetsLibrary assetslibrary ALAssetsLibrary alloc init autorelease assetslibrary assetForURL url resultBlock resultblock failureBlock..
iPhone:Programmatically compressing recorded video to share? http://stackoverflow.com/questions/5687341/iphoneprogrammatically-compressing-recorded-video-to-share dispatch_queue_t mainQueue dispatch_get_global_queue DISPATCH_QUEUE_PRIORITY_DEFAULT 0 dispatch_async mainQueue ^ ALAssetsLibrary library ALAssetsLibrary alloc init autorelease ALAssetsLibraryWriteVideoCompletionBlock completionBlock ^ NSURL assetURL.. dispatch_get_global_queue DISPATCH_QUEUE_PRIORITY_DEFAULT 0 dispatch_async mainQueue ^ ALAssetsLibrary library ALAssetsLibrary alloc init autorelease ALAssetsLibraryWriteVideoCompletionBlock completionBlock ^ NSURL assetURL NSError error NSLog @ Saved.. 0 dispatch_async mainQueue ^ ALAssetsLibrary library ALAssetsLibrary alloc init autorelease ALAssetsLibraryWriteVideoCompletionBlock completionBlock ^ NSURL assetURL NSError error NSLog @ Saved URL @ assetURL NSLog @ Error @ error..
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 to grab the GPS data. You'll notice I am logging everything to the console so I can see what the values are void ^ALAssetsLibraryAssetForURLResultBlock ALAsset ^ ALAsset asset NSDictionary metadata asset.defaultRepresentation.metadata NSLog @ Image Meta.. @ nLatitude @ nLongitude @ self.lat self.lng NSURL assetURL mediaInfo objectForKey UIImagePickerControllerReferenceURL ALAssetsLibrary library ALAssetsLibrary alloc init library assetForURL assetURL resultBlock ALAssetsLibraryAssetForURLResultBlock failureBlock.. @ self.lat self.lng NSURL assetURL mediaInfo objectForKey UIImagePickerControllerReferenceURL ALAssetsLibrary library ALAssetsLibrary alloc init library assetForURL assetURL resultBlock ALAssetsLibraryAssetForURLResultBlock failureBlock ^ NSError error ..
Get Exif data from UIImage - UIImagePickerController http://stackoverflow.com/questions/9766394/get-exif-data-from-uiimage-uiimagepickercontroller CGImageProperties.h And put this inside your imagePickerController didFinishPickingMediaWithInfo delegate method ALAssetsLibrary library ALAssetsLibrary alloc init library assetForURL info objectForKey UIImagePickerControllerReferenceURL resultBlock.. And put this inside your imagePickerController didFinishPickingMediaWithInfo delegate method ALAssetsLibrary library ALAssetsLibrary alloc init library assetForURL info objectForKey UIImagePickerControllerReferenceURL resultBlock ^ ALAsset asset ALAssetRepresentation..
Photo taken with camera does not contain any ALAsset metadata http://stackoverflow.com/questions/10166575/photo-taken-with-camera-does-not-contain-any-alasset-metadata coordLat 32.7366666666667 coordLon 71.679 PS I'm using xCode 4.3 w ARC iphone objective c gps uiimagepickercontroller alassetslibrary share improve this question In void imagePickerController UIImagePickerController picker didFinishPickingMediaWithInfo..
Save Photos to Custom Album in iPhones Photo Library http://stackoverflow.com/questions/10954380/save-photos-to-custom-album-in-iphones-photo-library Note I'm using Xcode 4.3.2 IOS 5.1 and ARC iphone objective c uiimage uiimagepickercontroller alassetslibrary share improve this question I found a pretty well explained tutorial that shows how to create a custom album and save..
To Get all Images from Photo Library in iphone http://stackoverflow.com/questions/11372789/to-get-all-images-from-photo-library-in-iphone assetGroupEnumerator failureBlock ^ NSError error NSLog @ A problem occurred iphone objective c ios xcode4 alassetslibrary share improve this question This code is fetched from some ELCImagePickerController example from here Some modifications..
NSBlockOperation or NSOperation with ALAsset Block to display photo-library images using ALAsset URL http://stackoverflow.com/questions/11580918/nsblockoperation-or-nsoperation-with-alasset-block-to-display-photo-library-imag I didn't get any idea to implement the NSBlockOperation with ALAsset block iphone nsoperation nsoperationqueue alassetslibrary nsblockoperation share improve this question You have a line in your DisplayImages NSOperation subclass where you update..
iOS save photo in an app specific album http://stackoverflow.com/questions/11972185/ios-save-photo-in-an-app-specific-album want add photos to the new album now how do I do so Sample code is greatly appreciated iphone objective c ios camera alassetslibrary share improve this question This article seems to achieve what you're looking for with a custom ALAssetsLibrary category...
Unable to load image from asset URL http://stackoverflow.com/questions/14496910/unable-to-load-image-from-asset-url property contains the URL assets library asset asset.JPG id 82690321 91C1 4650 8348 F3FD93D14613 ext JPG iphone alassetslibrary share improve this question You can't load images in this way. You need to use ALAssetsLibrary class for this. Add assetslibrary..
How to get NSData of mp3 using MPMediaPickerController? http://stackoverflow.com/questions/16195460/how-to-get-nsdata-of-mp3-using-mpmediapickercontroller NSData But not getting result. Can any one guide me to get NSData of mp3. Thanks in advance. iphone ios objective c alassetslibrary mpmediapickercontroller share improve this question Take a look at this library https github.com tapsquare TSLibraryImport..
http://stackoverflow.com/questions/4545982/getting-video-from-alasset in this case. Has anyone managed to access the url directly via the new assets library Thanks for your help. iphone alassetslibrary alasset share improve this question This is not the best way to do this. I am answering this question in case another..
iPhone:Programmatically find the count of videos and images from photo album? http://stackoverflow.com/questions/5403771/iphoneprogrammatically-find-the-count-of-videos-and-images-from-photo-album Reference Reference.html A good example how to use it can be find at link http iphonetuts.com tag alassetslibrary tutorial 27 library enumerateGroupsWithTypes ALAssetsGroupAlbum 28 usingBlock assetGroupEnumerator 29 failureBlock ^ NSError..
How to check if an ALAsset still exists using a URL http://stackoverflow.com/questions/7221167/how-to-check-if-an-alasset-still-exists-using-a-url @ assets library asset asset.PNG id 1000000001 ext PNG but assetData is allways nil thx for the help iphone alasset alassetslibrary share improve this question Use assetForURL resultBlock failureBlock method of ALAssetsLibrary instead to get the asset..
Wait for assetForURL blocks to be completed http://stackoverflow.com/questions/7234445/wait-for-assetforurl-blocks-to-be-completed error Type your code here for failure when user doesn't allow location in your app iphone objective c alasset alassetslibrary share improve this question GCD semaphore approach dispatch_semaphore_t sema dispatch_semaphore_create 0 dispatch_queue_t..
iPhone ALAssetsLibrary get all images and edit http://stackoverflow.com/questions/7570903/iphone-alassetslibrary-get-all-images-and-edit for all the images videos in iPhone library with ALAssetsLibrary Can I edit delete these images videos iphone alassetslibrary share improve this question Take a look at the documentation for ALAssetsLibrary here . To access all photos and videos..
What is the correct way to import & save Photos from iPhone Album? http://stackoverflow.com/questions/9973259/what-is-the-correct-way-to-import-save-photos-from-iphone-album way to Import with least time BTW It takes more time when I convert the image into NSData . iphone objective c ios alassetslibrary writetofile share improve this question It's dangerous to use the fullResolutionImage for this task for several reasons...
|