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POKal datasource delegates
 

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  1. POKal datasource delegates
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    <p>I'm usin Kal <a href="https://github.com/klazuka/Kal" rel="nofollow">https://github.com/klazuka/Kal</a> to implement a calendar. I'm using storyboard, so I add KalViewController as a child to the container view controller. </p> <pre><code>kal.delegate = self; kal.dataSource = dataSource; dataSource = [[CalendarDataSourceDelegate alloc] init]; kal = [[KalViewController alloc] init]; [self addChildViewController:kal]; [kal didMoveToParentViewController:self]; [self.calendarioView addSubview:kal.view]; [clickEvent insertPrintAdd:zona_competicion]; </code></pre> <p>I use an external object as datasource delegate, but after fetching data from my backend by webservice, I don't know how to call delegates to load calendar with fetched data:</p> <pre><code>@implementation CalendarDataSourceDelegate - (id)init { if ((self = [super init])) { items = [[NSMutableArray alloc] init]; matches = [[NSMutableArray alloc] init]; buffer = [[NSMutableData alloc] init]; } [self fetchHolidays]; return self; } - (eventMatch *)eventAtIndexPath:(NSIndexPath *)indexPath { return [items objectAtIndex:indexPath.row]; } #pragma mark UITableViewDataSource protocol conformance - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { static NSString *identifier = @"MyCell"; eventNoAddedCell *cell = [tableView dequeueReusableCellWithIdentifier:identifier]; if (!cell) { cell = [[eventNoAddedCell alloc] initWithStyle:UITableViewCellSelectionStyleNone reuseIdentifier:identifier]; cell.selectionStyle = UITableViewCellSelectionStyleNone; cell.imageView.contentMode = UIViewContentModeScaleAspectFill; } eventMatch *event = [self eventAtIndexPath:indexPath]; cell.escudoLocal.image = [UIImage imageNamed:[NSString stringWithFormat:@"%@.png",event.equipoLocal ]]; cell.escudoVis.image = [UIImage imageNamed:[NSString stringWithFormat:@"%@.png",event.equipoVisitante ]]; cell.equipoLocal.text = event.equipoLocal; cell.equipoVisitante.text = event.equipoVisitante; cell.competicion.text = event.competicion; cell.jornada.text = event.jornada; cell.hora.text = event.hora; cell.canalesTV.text = event.canalesTV; [self fetchHolidays]; return cell; } - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section { return [items count]; } #pragma mark Fetch from the internet - (void)fetchHolidays { NSString *urlStr = [NSString stringWithFormat:@"http://backend.exular.net/contenido/webservices/xlr_ws_calendario.php?idp=105"]; dataReady = NO; [matches removeAllObjects]; conn = [NSURLConnection connectionWithRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:urlStr]] delegate:self]; [conn start]; } - (void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response { [buffer setLength:0]; } - (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data { [buffer appendData:data]; } - (void)connectionDidFinishLoading:(NSURLConnection *)connection { NSError *error=nil; NSDictionary *tempDic = [NSJSONSerialization JSONObjectWithData:buffer options:kNilOptions error:&amp;error]; NSArray *array = [tempDic valueForKey:@"nodes"]; NSDateFormatter *fmt = [[NSDateFormatter alloc] init] ; [fmt setDateFormat:@"dd/MM/yyyy"]; for (NSDictionary *jornada in array) { NSDate *d = [fmt dateFromString:[jornada objectForKey:@"fecha"]]; [matches addObject:[eventMatch equipoVisitante:[jornada valueForKey:@"id_visitante"] equipoLocal:[jornada valueForKey:@"id_local"] resultadoVisitante:[jornada valueForKey:@"res_visitante"] resultadoLocal:[jornada valueForKey:@"res_local"] canalesTV:[jornada valueForKey:@"cadenas"] date:d time:[jornada valueForKey:@"hora"] jornada:[jornada valueForKey:@"jornada"] competicion:[jornada valueForKey:@"competicion"]]]; } dataReady = YES; [callback loadedDataSource:self]; } -(void)connection:(NSURLConnection *)connection didFailWithError:(NSError *)error { NSLog(@"HolidaysCalendarDataSource connection failure: %@", error); } #pragma mark KalDataSource protocol conformance - (void)presentingDatesFrom:(NSDate *)fromDate to:(NSDate *)toDate delegate:(id&lt;KalDataSourceCallbacks&gt;)delegate { /* * In this example, I load the entire dataset in one HTTP request, so the date range that is * being presented is irrelevant. So all I need to do is make sure that the data is loaded * the first time and that I always issue the callback to complete the asynchronous request * (even in the trivial case where we are responding synchronously). */ if (dataReady) { [callback loadedDataSource:self]; return; } callback = delegate; [self fetchHolidays]; } - (NSArray *)markedDatesFrom:(NSDate *)fromDate to:(NSDate *)toDate { if (!dataReady) return [NSArray array]; return [[self matchesFrom:fromDate to:toDate] valueForKeyPath:@"date"]; } - (void)loadItemsFromDate:(NSDate *)fromDate toDate:(NSDate *)toDate { if (!dataReady) return; [items addObjectsFromArray:[self matchesFrom:fromDate to:toDate]]; } - (void)removeAllItems { [items removeAllObjects]; } #pragma mark - - (NSArray *)matchesFrom:(NSDate *)fromDate to:(NSDate *)toDate { NSMutableArray *matchesUpdate = [NSMutableArray array]; for (eventMatch *match in matches) if (IsDateBetweenInclusive(match.date, fromDate, toDate)) [matchesUpdate addObject:match]; return matches; } - (void)dealloc { matches=nil; } </code></pre>
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