ios - EKEvent 编辑不起作用

Question

我正在 iOS5 中开发 EKEvent。我可以添加、删除、列出事件，但现在的问题是当我尝试编辑现有事件时，“完成”按钮会产生问题。它不会进入 eventEditViewController: 方法。可能是什么问题？任何帮助将不胜感激。取消和删除按钮正在工作。当我编辑事件并单击“完成”时，控制台显示Calendar: unable to save: (null) .

这是我尝试过的代码..

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
    EKEventEditViewController* eventViewController = [[EKEventEditViewController alloc] init];
    event = [self.events objectAtIndex:indexPath.row];

    eventViewController.event = event;
    eventViewController.editViewDelegate = self;
    [self presentModalViewController: eventViewController animated:YES];
    [eventViewController release];
}

-(void)eventEditViewController:(EKEventEditViewController *)controller
         didCompleteWithAction:(EKEventEditViewAction)action {
    EKEvent *thisEvent = controller.event;
    NSError *error;
    if ([controller.event.endDate isEqualToDate:controller.event.startDate]) {
        controller.event.endDate = [controller.event.startDate dateByAddingTimeInterval:1.0]; // add one second
    }
    switch (action) {
        case EKEventEditViewActionCancelled:
            // User tapped "cancel"
            NSLog(@"Canceled");
            break;
        case EKEventEditViewActionSaved:
            NSLog(@"Saved");
            [controller.eventStore saveEvent:controller.event span: EKSpanFutureEvents error:&error];
            break;
        case EKEventEditViewActionDeleted:
            // User tapped "delete"
            NSLog(@"Deleted");
            // delete the event from event list
            [self.events removeObject:thisEvent];
            // delete the event from event store
            [self.eventStore removeEvent:thisEvent span:EKSpanThisEvent error:nil];
            // reload the tableView
            [self.tableOutlet reloadData];
            break;
        default:
                NSLog(@"Default");
            break;
    }

    [self dismissModalViewControllerAnimated:YES];

}

Answer 1

根据docs ,

eventStore

This property must be set before displaying the view.

所以，

eventViewController.eventStore = <your event store>;
eventViewController.editViewDelegate = self;

[self presentModalViewController: eventViewController
                        animated: YES];