我已经从共享的谷歌日历 i IOS 中检索了我的事件，并在表格视图中显示它们。至于现在，它们只是简单地以事件标题作为标题，事件时间作为副标题来显示。我想改用日期（事件时间）作为部分标题，以便例如 3 月 31 日的所有事件都显示在一个组中，时间作为“正确的细节”
我的代码如下所示：
@interface MasterViewController () {
NSArray *events;
}
@end
@implementation MasterViewController
-(void)viewDidAppear:(BOOL)animated
{
//show loader view
//[HUD showUIBlockingIndicatorWithText:@"Fetching JSON"];
//make HTTP call
NSString* searchCall = [NSString stringWithFormat:@"http://www.google.com/calendar/feeds/kao1d80fd2u5kh7268caop11o4%%40group.calendar.google.com/public/full?alt=json"];
[JSONHTTPClient getJSONFromURLWithString: searchCall
completion:^(NSDictionary *json, JSONModelError *err) {
//got JSON back
NSLog(@"Got JSON from web: %@", json);
if (err) {
[[[UIAlertView alloc] initWithTitle:@"Error"
message:[err localizedDescription]
delegate:nil
cancelButtonTitle:@"Close"
otherButtonTitles: nil] show];
return;
}
//initialize the models
events = [CalendarModel arrayOfModelsFromDictionaries:
json[@"feed"][@"entry"]
];
if (events) NSLog(@"Loaded successfully models");
//show the videos
[self.tableView reloadData];
}];
}
;
#pragma mark - table methods
-(NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
return 1;
}
-(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
return events.count;
}
-(UITableViewCell*)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
CalendarModel* event = events[indexPath.row];
NSDateFormatter *formatter = [[NSDateFormatter alloc] init];
formatter.dateFormat = @"yyyy-MM-dd'T'HH:mm:ss.SSSzzz";
NSDate *gmtDate = [formatter dateFromString: [[event.time objectAtIndex:0] startTime]];
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:@"Cell" forIndexPath:indexPath];
cell.textLabel.text = [NSString stringWithFormat:@"%@",
event.title
];
cell.detailTextLabel.text = [formatter stringFromDate: gmtDate];
return cell;
}
@end
我在网上找到了这段代码，但我相信他没有以 JSON 格式获取数据，而是来自 iPhone 日历。
@interface MasterViewController ()
@property (strong, nonatomic) NSMutableDictionary *sections;
@property (strong, nonatomic) NSArray *sortedDays;
@property (strong, nonatomic) NSDateFormatter *sectionDateFormatter;
@property (strong, nonatomic) NSDateFormatter *cellDateFormatter;
- (NSDate *)dateAtBeginningOfDayForDate:(NSDate *)inputDate;
- (NSDate *)dateByAddingYears:(NSInteger)numberOfYears toDate:(NSDate *)inputDate;
@end
@implementation MasterViewController
@synthesize sections;
@synthesize sortedDays;
@synthesize sectionDateFormatter;
@synthesize cellDateFormatter;
- (void)awakeFromNib
{
[super awakeFromNib];
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
}
#pragma mark - View lifecycle
- (void)viewDidLoad
{
[super viewDidLoad];
NSDate *now = [NSDate date];
NSDate *startDate = [self dateAtBeginningOfDayForDate:now];
NSDate *endDate = [self dateByAddingYears:1 toDate:startDate];
EKEventStore *eventStore = [[EKEventStore alloc] init];
NSPredicate *searchPredicate = [eventStore predicateForEventsWithStartDate:startDate endDate:endDate calendars:nil];
NSArray *events = [eventStore eventsMatchingPredicate:searchPredicate];
self.sections = [NSMutableDictionary dictionary];
for (EKEvent *event in events)
{
// Reduce event start date to date components (year, month, day)
NSDate *dateRepresentingThisDay = [self dateAtBeginningOfDayForDate:event.startDate];
// If we don't yet have an array to hold the events for this day, create one
NSMutableArray *eventsOnThisDay = [self.sections objectForKey:dateRepresentingThisDay];
if (eventsOnThisDay == nil) {
eventsOnThisDay = [NSMutableArray array];
// Use the reduced date as dictionary key to later retrieve the event list this day
[self.sections setObject:eventsOnThisDay forKey:dateRepresentingThisDay];
}
// Add the event to the list for this day
[eventsOnThisDay addObject:event];
}
// Create a sorted list of days
NSArray *unsortedDays = [self.sections allKeys];
self.sortedDays = [unsortedDays sortedArrayUsingSelector:@selector(compare:)];
self.sectionDateFormatter = [[NSDateFormatter alloc] init];
[self.sectionDateFormatter setDateStyle:NSDateFormatterLongStyle];
[self.sectionDateFormatter setTimeStyle:NSDateFormatterNoStyle];
self.cellDateFormatter = [[NSDateFormatter alloc] init];
[self.cellDateFormatter setDateStyle:NSDateFormatterNoStyle];
[self.cellDateFormatter setTimeStyle:NSDateFormatterShortStyle];
}
- (void)viewDidUnload
{
[super viewDidUnload];
}
- (void)viewWillAppear:(BOOL)animated
{
[super viewWillAppear:animated];
}
- (void)viewDidAppear:(BOOL)animated
{
[super viewDidAppear:animated];
}
- (void)viewWillDisappear:(BOOL)animated
{
[super viewWillDisappear:animated];
}
- (void)viewDidDisappear:(BOOL)animated
{
[super viewDidDisappear:animated];
}
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
// Return YES for supported orientations
return (interfaceOrientation != UIInterfaceOrientationPortraitUpsideDown);
}
#pragma mark - Date Calculations
- (NSDate *)dateAtBeginningOfDayForDate:(NSDate *)inputDate
{
// Use the user's current calendar and time zone
NSCalendar *calendar = [NSCalendar currentCalendar];
NSTimeZone *timeZone = [NSTimeZone systemTimeZone];
[calendar setTimeZone:timeZone];
// Selectively convert the date components (year, month, day) of the input date
NSDateComponents *dateComps = [calendar components:NSYearCalendarUnit | NSMonthCalendarUnit | NSDayCalendarUnit fromDate:inputDate];
// Set the time components manually
[dateComps setHour:0];
[dateComps setMinute:0];
[dateComps setSecond:0];
// Convert back
NSDate *beginningOfDay = [calendar dateFromComponents:dateComps];
return beginningOfDay;
}
- (NSDate *)dateByAddingYears:(NSInteger)numberOfYears toDate:(NSDate *)inputDate
{
// Use the user's current calendar
NSCalendar *calendar = [NSCalendar currentCalendar];
NSDateComponents *dateComps = [[NSDateComponents alloc] init];
[dateComps setYear:numberOfYears];
NSDate *newDate = [calendar dateByAddingComponents:dateComps toDate:inputDate options:0];
return newDate;
}
#pragma mark - UITableViewDataSource methods
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
return [self.sections count];
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
NSDate *dateRepresentingThisDay = [self.sortedDays objectAtIndex:section];
NSArray *eventsOnThisDay = [self.sections objectForKey:dateRepresentingThisDay];
return [eventsOnThisDay count];
}
- (NSString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section
{
NSDate *dateRepresentingThisDay = [self.sortedDays objectAtIndex:section];
return [self.sectionDateFormatter stringFromDate:dateRepresentingThisDay];
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
NSString *reuseIdentifier = @"EventTitleCell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:reuseIdentifier];
NSDate *dateRepresentingThisDay = [self.sortedDays objectAtIndex:indexPath.section];
NSArray *eventsOnThisDay = [self.sections objectForKey:dateRepresentingThisDay];
EKEvent *event = [eventsOnThisDay objectAtIndex:indexPath.row];
cell.textLabel.text = event.title;
if (event.allDay) {
cell.detailTextLabel.text = @"all day";
} else {
cell.detailTextLabel.text = [self.cellDateFormatter stringFromDate:event.startDate];
}
return cell;
}
@end
有没有办法让我使用我的 json event.startdate 作为部分标题？