RestKit 0.22.xを使用してマーベルヒーローを表示します

1.キーを取得し、問題を定式化する

2.はじめに

 Character { id (int, optional): The unique ID of the character resource., name (string, optional): The name of the character., description (string, optional): A short bio or description of the character., modified (Date, optional): The date the resource was most recently modified., resourceURI (string, optional): The canonical URL identifier for this resource., urls (Array[Url], optional): A set of public web site URLs for the resource., thumbnail (Image, optional): The representative image for this character., comics (ComicList, optional): A resource list containing comics which feature this character., stories (StoryList, optional): A resource list of stories in which this character appears., events (EventList, optional): A resource list of events in which this character appears., series (SeriesList, optional): A resource list of series in which this character appears. } 

 "thumbnail": { "path": "http://i.annihil.us/u/prod/marvel/i/mg/8/c0/4ce5a0e31f109", "extension": "jpg" } 

 @interface Character : NSManagedObject { NSDictionary *_thumbnailDictionary; } @property (nonatomic, retain) NSString *name; @property (nonatomic, retain) NSNumber *charID; @property (nonatomic, retain) NSNumber *innerID; @property (nonatomic, retain) NSString *charDescription; @property (nonatomic, retain) NSData *thumbnailImageData; @property (nonatomic, retain) NSString *thumbnailURLString; @property NSDictionary *thumbnailDictionary; //       + (NSInteger)allCharsCountWithContext:(NSManagedObjectContext *)managedObjectContext; //     innerID. + (Character *)charWithManagedObjectContext:(NSManagedObjectContext *)context andInnerID:(NSInteger)charInnerID; @end 

3. RestKitを使用するためのモデル

 @implementation GDMarvelRKObjectManager { RKObjectManager *objectManager; RKManagedObjectStore *managedObjectStore; } 

 //  AFNetworking HTTPClient NSURL *baseURL = [NSURL URLWithString:@"http://gateway.marvel.com/"]; AFHTTPClient *client = [[AFHTTPClient alloc] initWithBaseURL:baseURL]; // RKObjectManager objectManager = [[RKObjectManager alloc] initWithHTTPClient:client]; 

 - (void)configureWithManagedObjectModel:(NSManagedObjectModel *)managedObjectModel { if (!managedObjectModel) return; managedObjectStore = [[RKManagedObjectStore alloc] initWithManagedObjectModel:managedObjectModel]; NSError *error; if (!RKEnsureDirectoryExistsAtPath(RKApplicationDataDirectory(), &error)) RKLogError(@"Failed to create Application Data Directory at path '%@': %@", RKApplicationDataDirectory(), error); NSString *path = [RKApplicationDataDirectory() stringByAppendingPathComponent:@"RKMarvel.sqlite"]; if (![managedObjectStore addSQLitePersistentStoreAtPath:path fromSeedDatabaseAtPath:nil withConfiguration:nil options:nil error:&error]) RKLogError(@"Failed adding persistent store at path '%@': %@", path, error); [managedObjectStore createManagedObjectContexts]; objectManager.managedObjectStore = managedObjectStore; } 

 - (void)addMappingForEntityForName:(NSString *)entityName andAttributeMappingsFromDictionary:(NSDictionary *)attributeMappings andIdentificationAttributes:(NSArray *)ids andPathPattern:(NSString *)pathPattern { if (!managedObjectStore) return; RKEntityMapping *objectMapping = [RKEntityMapping mappingForEntityForName:entityName inManagedObjectStore:managedObjectStore]; // ,    . [objectMapping addAttributeMappingsFromDictionary:attributeMappings]; // ,    .   ,       . objectMapping.identificationAttributes = ids; //   ,           . RKResponseDescriptor *characterResponseDescriptor = [RKResponseDescriptor responseDescriptorWithMapping:objectMapping method:RKRequestMethodGET pathPattern:[NSString stringWithFormat:@"%@%@", MARVEL_API_PATH_PATTERN, pathPattern] keyPath:@"data.results" statusCodes:[NSIndexSet indexSetWithIndex:200]]; [objectManager addResponseDescriptor:characterResponseDescriptor]; } 

 { "code": "int", "status": "string", "copyright": "string", "attributionText": "string", "attributionHTML": "string", "data": { "offset": "int", "limit": "int", "total": "int", "count": "int", "results": [ { "id": "int", "name": "string", "description": "string", "modified": "Date", "resourceURI": "string", "urls": [ { "type": "string", "url": "string" } ], "thumbnail": { "path": "string", "extension": "string" }, "comics": { "available": "int", "returned": "int", "collectionURI": "string", "items": [ { "resourceURI": "string", "name": "string" } ] }, "stories": { "available": "int", "returned": "int", "collectionURI": "string", "items": [ { "resourceURI": "string", "name": "string", "type": "string" } ] }, "events": { "available": "int", "returned": "int", "collectionURI": "string", "items": [ { "resourceURI": "string", "name": "string" } ] }, "series": { "available": "int", "returned": "int", "collectionURI": "string", "items": [ { "resourceURI": "string", "name": "string" } ] } } ] }, "etag": "string" } 

 - (void)getMarvelObjectsAtPath:(NSString *)path parameters:(NSDictionary *)params success:(void (^)(RKObjectRequestOperation *operation, RKMappingResult *mappingResult))success failure:(void (^)(RKObjectRequestOperation *operation, NSError *error))failure { //    NSDateFormatter *formatter = [[NSDateFormatter alloc] init]; [formatter setDateFormat:@"yyyyMMddHHmmss"]; NSString *timeStampString = [formatter stringFromDate:[NSDate date]]; NSString *hash = [[[NSString stringWithFormat:@"%@%@%@", timeStampString, MARVEL_PRIVATE_KEY, MARVEL_PUBLIC_KEY] MD5String] lowercaseString]; NSMutableDictionary *queryParams = [NSMutableDictionary dictionaryWithDictionary:@{@"apikey" : MARVEL_PUBLIC_KEY, @"ts" : timeStampString, @"hash" : hash}]; if (params) [queryParams addEntriesFromDictionary:params]; //      objectManager     [objectManager getObjectsAtPath:[NSString stringWithFormat:@"%@%@", MARVEL_API_PATH_PATTERN, path] parameters:queryParams success:success failure:failure]; } 

4.メインViewController

 - (void)animateActivityIndicator:(BOOL)animate { activityIndicator.hidden = !animate; if (animate) { [self.view bringSubviewToFront:activityIndicator]; [activityIndicator startAnimating]; } else [activityIndicator stopAnimating]; } 

 @interface GDMainViewController : GDBaseViewController <UITableViewDataSource, UITableViewDelegate, UIAlertViewDelegate> { UITableView *table; NSInteger numberOfCharacters; AllAroundPullView *bottomPullView; BOOL noRequestsMade; } @end 

 NSURL *modelURL = [[NSBundle mainBundle] URLForResource:@"Marvel" withExtension:@"momd"]; [[GDMarvelRKObjectManager manager] configureWithManagedObjectModel:[[NSManagedObjectModel alloc] initWithContentsOfURL:modelURL]]; //        Character: [[GDMarvelRKObjectManager manager] addMappingForEntityForName:@"Character" andAttributeMappingsFromDictionary:@{ @"name" : @"name", @"id" : @"charID", @"thumbnail" : @"thumbnailDictionary", @"description" : @"charDescription" } andIdentificationAttributes:@[@"charID"] andPathPattern:MARVEL_API_CHARACTERS_PATH_PATTERN]; 

 - (void)loadCharacters { numberOfCharacters = [Character allCharsCountWithContext:[[GDMarvelRKObjectManager manager] managedObjectContext]]; if (noRequestsMade && numberOfCharacters > 0) { noRequestsMade = NO; return; } [self animateActivityIndicator:YES]; noRequestsMade = NO; [[GDMarvelRKObjectManager manager] getMarvelObjectsAtPath:MARVEL_API_CHARACTERS_PATH_PATTERN parameters:@{@"offset" : @(numberOfCharacters)} success:^(RKObjectRequestOperation *operation, RKMappingResult *mappingResult) { [self animateActivityIndicator:NO]; NSInteger newInnerID = numberOfCharacters; for (Character *curCharacter in mappingResult.array) { if ([curCharacter isKindOfClass:[Character class]]) { curCharacter.innerID = @(newInnerID); newInnerID++; //     (     ),   ,        [self saveToStore]; } } numberOfCharacters = newInnerID; [table reloadData]; bottomPullView.hidden = NO; [bottomPullView finishedLoading]; } failure:^(RKObjectRequestOperation *operation, NSError *error) { [bottomPullView finishedLoading]; [[[UIAlertView alloc] initWithTitle:@"Marvel API Error" message:operation.error.localizedDescription delegate:self cancelButtonTitle:@"Cancel" otherButtonTitles:@"Retry", nil] show]; }]; } 

 - (void)saveToStore { NSError *saveError; if (![[[GDMarvelRKObjectManager manager] managedObjectContext] saveToPersistentStore:&saveError]) XLog(@"%@", [saveError localizedDescription]); } 

 bottomPullView = [[AllAroundPullView alloc] initWithScrollView:table position:AllAroundPullViewPositionBottom action:^(AllAroundPullView *view){ [self loadCharacters]; }]; bottomPullView.hidden = YES; [table addSubview:bottomPullView]; 

5.画像とディスプレイの保存。

 - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { NSInteger row = indexPath.row; NSString *reusableIdentifier = [NSString stringWithFormat:@"%d", row % 2]; UITableViewCell *cell = [table dequeueReusableCellWithIdentifier:reusableIdentifier]; if (!cell) { cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:reusableIdentifier]; cell.autoresizingMask = UIViewAutoresizingFlexibleWidth; } [[cell.contentView subviews] makeObjectsPerformSelector:@selector(removeFromSuperview)]; if (numberOfCharacters > row) { Character *curCharacter = [Character charWithManagedObjectContext: [[GDMarvelRKObjectManager manager] managedObjectContext] andInnerID:row]; if (curCharacter) { BOOL charHasDescription = ![curCharacter.charDescription isEqualToString:@""]; UILabel *label = [[UILabel alloc] initWithFrame:CGRectMake(70, 0, CGRectGetWidth(cell.contentView.frame) - 70 - (charHasDescription ? 60 : 0), 60)]; label.backgroundColor = [UIColor clearColor]; label.text = curCharacter.name; label.autoresizingMask = UIViewAutoresizingFlexibleWidth; [cell.contentView addSubview:label]; GDCellThumbnailView *thumbnail = [GDCellThumbnailView thumbnail]; if (curCharacter.thumbnailImageData) [thumbnail setImage:[UIImage imageWithData:curCharacter.thumbnailImageData]]; else [self loadThumbnail:thumbnail fromURLString:curCharacter.thumbnailURLString forCharacter:curCharacter]; [cell.contentView addSubview:thumbnail]; cell.accessoryType = charHasDescription ? UITableViewCellAccessoryDetailButton : UITableViewCellSelectionStyleNone; cell.selectionStyle = charHasDescription ? UITableViewCellSelectionStyleGray : UITableViewCellSelectionStyleNone; } } return cell; } 

 - (void)loadThumbnail:(GDCellThumbnailView *)view fromURLString:(NSString *)urlString forCharacter:(Character *)character { XLog(@"Loading thumbnail for %@", character.name); AFHTTPRequestOperation *operation = [[AFHTTPRequestOperation alloc] initWithRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:urlString]]]; [operation setCompletionBlockWithSuccess:^(AFHTTPRequestOperation *operation, id responseObject) { character.thumbnailImageData = responseObject; [self saveToStore]; [view setImage:[UIImage imageWithData:responseObject]]; } failure:^(AFHTTPRequestOperation *operation, NSError *error) { XLog(@"%@", [error localizedDescription]); }]; [operation start]; } 

6.結論。