小编use*_*630的帖子

我正在开发日历应用程序.我正在尝试使用指定的EKCalender保存EKEvent.但是,当我尝试运行以下代码时,它给了我错误.请帮忙

-(BOOL)createEventWithTitle:(NSString *)paramTitle startDate:(NSDate *)paramStartDate endDate:(NSDate *)paramEndDate inCalendar:(EKCalendar *)paramCalendar inEventStore:(EKEventStore *)paramStore notes:(NSString *)paramNotes 
        {
         BOOL result = NO;

        //paramCalendar = [self.eventStoreiReportShifts defaultCalendarForNewEvents];
            if (self.eventsAccessGranted) {
                NSArray *caledars = [self.eventStore calendarsForEntityType:EKEntityTypeEvent];
                self.selectedCalendarEventKitIdentifier = [[NSUserDefaults standardUserDefaults] objectForKey:@"eventkit_cal_identifiers_string"];
                for(EKCalendar *aCal in caledars){
                    if([aCal.calendarIdentifier isEqualToString:self.selectedCalendarEventKitIdentifier]){
                        paramCalendar = [self.eventStore calendarWithIdentifier:[[NSUserDefaults standardUserDefaults] objectForKey:@"eventkit_cal_identifiers_string"]];
                    }
                }
                for (EKSource *source in self.eventStore.sources) {
                    if (source.sourceType == EKSourceTypeCalDAV) {
                        paramCalendar.source = source;
                        break;
                    } else if(source.sourceType == EKSourceTypeLocal){
                        paramCalendar.source = source;
                        break;
                    }
                }

        }else{
            return NO;
        }

        /* …

我有一个在iOS 7和Xcode 5中运行良好的应用程序.当我将其更新到iOS 8和Xcode 6时,当应用程序尝试在轻触textField时在视图中向上滑动UIDatePicker时,它会崩溃.我正在使用故事板.有谁知道为什么？

我已经阅读了这个,但它的Xib.

应用程序在IOS 6上崩溃 - UIViewControllerHierarchyInconsistency

请帮助谢谢

我的代码:

- (void)textFieldDidBeginEditing:(UITextField *)textField
{

    //set picker color start
    [self.myDatePicker setBackgroundColor:[UIColor greenColor]];


    //set picker color finish
    //calculate bounds start
    CGRect textFieldRect = [self.view.window convertRect:textField.bounds fromView:textField];
    CGRect viewRect = [self.view.window convertRect:self.view.bounds fromView:self.view];
    //calculate bounds finish
    //calculate the fraction between the top and bottom of the middle section for the text field's midline start
    CGFloat midline = textFieldRect.origin.y + 0.5 * textFieldRect.size.height;
    CGFloat numerator = midline - viewRect.origin.y
    - MINIMUM_SCROLL_FRACTION * …

我正在 CloudKit 上工作，但不断收到字符不允许错误。允许使用哪些字符？