小编Shi*_*har的帖子

我在点击按钮时向日历添加事件.每当我点击该按钮时,Xcode会向我发出警告并将应用程序挂起大约几秒钟,然后将该事件添加到日历中.警告如下:

void _WebThreadLockFromAnyThread(bool),0x175bd5c0:从主线程或Web线程以外的线程获取Web锁.不应该从辅助线程调用UIKit.

我用于添加事件的代码如下:

- (IBAction)btn_reminder_click:(id)sender{

    [self addEventTocalendar];
}

- (void)addEventTocalendar{
    EKEventStore *store = [[EKEventStore alloc] init];
    [store requestAccessToEntityType:EKEntityTypeEvent completion:^(BOOL granted, NSError *error) {
        if (!granted) { return; }
        EKEvent *event = [EKEvent eventWithEventStore:store];
        if (btn_appointment.isSelected) {
            event.title = @"Appointment Reminder.";
        }
        else if (btn_pickup.isSelected){
            event.title  = @"Pickup Reminder";
        }

        event.startDate = self.selectedDate;
        event.endDate = [event.startDate dateByAddingTimeInterval:60*60];//set 1 hour meeting
        event.notes = txt_notes.text;
        event.recurrenceRules = EKRecurrenceFrequencyDaily;
        [event addAlarm:[EKAlarm alarmWithRelativeOffset:60.0f * -5.0f]];
        if (selectedIndex == 1) {
            [event addRecurrenceRule:[[EKRecurrenceRule alloc]initRecurrenceWithFrequency:EKRecurrenceFrequencyDaily interval:1 …