![UIDocument
• delegate (→View )
• View →
•UIDocumentStateChangedNotification
[NSNotificationCenter defaultCenter]
documentState
UIDocumentStateNormal :
UIDocumentStateInConflict :
UIDocumentStateSavingError
UIDocumentStateNormal
12 2 14](https://image.slidesharecdn.com/20120121-120120193452-phpapp01/85/20120121-7-320.jpg)
![• iCloud
defaultFileManager ( [NSFileManager defaultManager] )
URLForUbiquityContainerIdentifier:
→iCloud
nil iCloud
iCloud iCloud
12 2 14](https://image.slidesharecdn.com/20120121-120120193452-phpapp01/85/20120121-8-320.jpg)
![• NSMetadataQuery
)
NSMetadataQuery *query = [[NSMetadataQuery alloc] init];
query.predicate = [NSPredicate predicateWithFormat:@"%K ENDSWITH '.txt'", NSMetadataItemFSNameKey];
query.searchScopes = [NSArray arrayWithObject:NSMetadataQueryUbiquitousDocumentsScope];
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(updateUbiquitousDocuments:)
name:NSMetadataQueryDidFinishGatheringNotification object:nil];
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(updateUbiquitousDocuments:)
name:NSMetadataQueryDidUpdateNotification object:nil];
[query startQuery];
12 2 14](https://image.slidesharecdn.com/20120121-120120193452-phpapp01/85/20120121-9-320.jpg)
![• iCloud (
defaultFileManager ( [NSFileManager defaultManager] )
)
setUbiquitous:itemAtURL:destinationURL:error:
→ iCloud
setUbiquitous YES
iCloud →
setUbiquitous NO
• defaultFileManager ( [NSFileManager defaultManager] )
removeItemAtURL:error:
12 2 14](https://image.slidesharecdn.com/20120121-120120193452-phpapp01/85/20120121-11-320.jpg)
![• iCloud
setUbiquitous:itemAtURL:destinationURL:error:
( )
NSFilePresenter
)( iOS )
dispatch_queue_t q_default;
q_default = dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0);
dispatch_async(q_default, ^(void) {
NSFileManager *fileManager = [[NSFileManager alloc] init];
NSError *error = nil;
BOOL success = [fileManager setUbiquitous:YES itemAtURL:sourceURL
destinationURL:destinationURL error:&error];
dispatch_queue_t q_main = dispatch_get_main_queue();
dispatch_async(q_main, ^(void) {
if (success) {
FileRepresentation *fileRepresentation = [[FileRepresentation alloc]
initWithFileName:fileToMove.fileName url:destinationURL];
[_fileList removeObject:fileToMove];
[_fileList addObject:fileRepresentation];
NSLog(@"moved file to cloud: %@", fileRepresentation);
}
if (!success) {
NSLog(@"Couldn't move file to iCloud: %@", fileToMove);
}
});
});
12 2 14](https://image.slidesharecdn.com/20120121-120120193452-phpapp01/85/20120121-12-320.jpg)
20120121
- 1. iCloud Mick Kubo(@komarineko) http://komarineko.net/ 2012 1 21 12 2 14
- 2. • iCloud ... .... • NSDocument ... ... Web ...( ) • ... 12 2 14
- 3. iCloud • ( ) • ( ) • Apple ... • ... Google Evernote • WWDC2011 iCloud Windows API ... 12 2 14
- 4. • iCloud iCloud • daemon ”ubd” • • iCloud “ubd” (ry 12 2 14
- 5. • NSFilePresenter • NSFileCoordinator • • UIDocument 12 2 14
- 6. UIDocument • NSFilePresenter • UIDocument loadFromContents:ofType:error: ( ) contentsForType:error: ( ) (ViewController) delegate 12 2 14
- 7. UIDocument • delegate (→View ) • View → •UIDocumentStateChangedNotification [NSNotificationCenter defaultCenter] documentState UIDocumentStateNormal : UIDocumentStateInConflict : UIDocumentStateSavingError UIDocumentStateNormal 12 2 14
- 8. • iCloud defaultFileManager ( [NSFileManager defaultManager] ) URLForUbiquityContainerIdentifier: →iCloud nil iCloud iCloud iCloud 12 2 14
- 9. • NSMetadataQuery ) NSMetadataQuery *query = [[NSMetadataQuery alloc] init]; query.predicate = [NSPredicate predicateWithFormat:@"%K ENDSWITH '.txt'", NSMetadataItemFSNameKey]; query.searchScopes = [NSArray arrayWithObject:NSMetadataQueryUbiquitousDocumentsScope]; [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(updateUbiquitousDocuments:) name:NSMetadataQueryDidFinishGatheringNotification object:nil]; [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(updateUbiquitousDocuments:) name:NSMetadataQueryDidUpdateNotification object:nil]; [query startQuery]; 12 2 14
- 10. • saveToURL:forSaveOperation:completionHandler: forSaveOperation UIDocumentSaveForCreating • openWithCompletionHandler: • closeWithCompletionHandler: ( ) 12 2 14
- 11. • iCloud ( defaultFileManager ( [NSFileManager defaultManager] ) ) setUbiquitous:itemAtURL:destinationURL:error: → iCloud setUbiquitous YES iCloud → setUbiquitous NO • defaultFileManager ( [NSFileManager defaultManager] ) removeItemAtURL:error: 12 2 14
- 12. • iCloud setUbiquitous:itemAtURL:destinationURL:error: ( ) NSFilePresenter )( iOS ) dispatch_queue_t q_default; q_default = dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0); dispatch_async(q_default, ^(void) { NSFileManager *fileManager = [[NSFileManager alloc] init]; NSError *error = nil; BOOL success = [fileManager setUbiquitous:YES itemAtURL:sourceURL destinationURL:destinationURL error:&error]; dispatch_queue_t q_main = dispatch_get_main_queue(); dispatch_async(q_main, ^(void) { if (success) { FileRepresentation *fileRepresentation = [[FileRepresentation alloc] initWithFileName:fileToMove.fileName url:destinationURL]; [_fileList removeObject:fileToMove]; [_fileList addObject:fileRepresentation]; NSLog(@"moved file to cloud: %@", fileRepresentation); } if (!success) { NSLog(@"Couldn't move file to iCloud: %@", fileToMove); } }); }); 12 2 14
- 13. • • 12 2 14