我不知道这里的问题是什么，但每次我运行我的应用程序时，都会重复调用本地通知，将 fireDate 显示为 NULL。我正在努力解决过去 5 小时以来的这个问题。我需要帮助!!!
"<UIConcreteLocalNotification: 0x7f872ead7630>{fire date = (null), time zone = (null), repeat interval = NSCalendarUnitDay, repeat count = UILocalNotificationInfiniteRepeatCount, next fire date = Monday, 7 September 2015 5:32:44 pm India Standard Time, user info = (null)}",
我已经对 UILocalNotification 进行了足够的研究以开始使用它，但我仍然面临这个问题。
-(void)setDate:(NSDate*)myfireDate andTime1InString: (NSString*)time1Str andTime2InString:(NSString*)time2Str andTime3InString:(NSString*)time3Str{
//concatenate myFireDate with all three times one by one
NSString *myFireDateInString = [dateFormatter stringFromDate:myfireDate];
myFireDateInString = [myFireDateInString stringByAppendingString:@" "];
NSString *dateWithTime1InString = [myFireDateInString stringByAppendingString:time1Str];
[dateFormatter setDateFormat:@"yyyy-MM-dd HH:mm:ss"];
NSDate *dateWithTime1 = [dateFormatter dateFromString:dateWithTime1InString];
NSString *mySecondFireDateInString;
NSString *dateWithTime2InString;
NSDate *dateWithTime2;
if ([time2Str length] !=0){
[dateFormatter setDateFormat:@"yyyy-MM-dd"];
mySecondFireDateInString = [dateFormatter stringFromDate:myfireDate];
mySecondFireDateInString = [mySecondFireDateInString stringByAppendingString:@" "];
dateWithTime2InString = [mySecondFireDateInString stringByAppendingString:time2Str];
[dateFormatter setDateFormat:@"yyyy-MM-dd HH:mm:ss"];
dateWithTime2 = [dateFormatter dateFromString:dateWithTime2InString];
}
NSString *myThirdFireDateInString;
NSString *dateWithTime3InString;
NSDate *dateWithTime3;
if ([time3Str length]!=0){
[dateFormatter setDateFormat:@"yyyy-MM-dd"];
myThirdFireDateInString = [dateFormatter stringFromDate:myfireDate];
myThirdFireDateInString = [myThirdFireDateInString stringByAppendingString:@" "];
dateWithTime3InString = [myThirdFireDateInString stringByAppendingString:time3Str];
[dateFormatter setDateFormat:@"yyyy-MM-dd HH:mm:ss"];
dateWithTime3 = [dateFormatter dateFromString:dateWithTime3InString];
}
NSLog(@"%@",dateWithTime3);
NSLog(@"%@",dateWithTime2);
//block starts here
void(^notificationBlock)(void) = ^{
appDelegate.localNotification1 = [UILocalNotification new];
appDelegate.localNotification1.fireDate = dateWithTime1;
appDelegate.localNotification1.applicationIconBadgeNumber = [[UIApplication sharedApplication]applicationIconBadgeNumber]+1;
if(dateWithTime2 != nil){//Make a new UILocalNotification object
appDelegate.localNotification2 = [UILocalNotification new];
appDelegate.localNotification2.fireDate = dateWithTime2;
appDelegate.localNotification2.applicationIconBadgeNumber = [[UIApplication sharedApplication]applicationIconBadgeNumber]+1;
}
if(dateWithTime3 !=nil){//MAke a new UILocalNotification object
appDelegate.localNotification3 = [UILocalNotification new];
appDelegate.localNotification3.fireDate = dateWithTime3;
appDelegate.localNotification3.applicationIconBadgeNumber = [[UIApplication sharedApplication]applicationIconBadgeNumber]+1;
}
if([_repeatDaysTextField.text isEqualToString:@"Everyday"]){
// appDelegate.localNotification1.alertBody = @"Time to take your medicine";
appDelegate.localNotification1.repeatInterval = kCFCalendarUnitDay;
[[UIApplication sharedApplication]scheduleLocalNotification:appDelegate.localNotification1];
if(dateWithTime2 != nil){
appDelegate.localNotification2.repeatInterval = kCFCalendarUnitDay;
[[UIApplication sharedApplication]scheduleLocalNotification:appDelegate.localNotification2];
appDelegate.localNotification2.alertBody = @"Not2";
NSLog(@"%@",appDelegate.localNotification2);
}
NSLog(@"%@",[NSString stringWithFormat:@"%@",dateWithTime3 ]);
if(dateWithTime3 != nil){
[[UIApplication sharedApplication]scheduleLocalNotification:appDelegate.localNotification3];
}
}
else if([_repeatDaysTextField.text isEqualToString:@"Alternately"]){
}
else if([_repeatDaysTextField.text isEqualToString:@"Weekly"]){
appDelegate.localNotification1.repeatInterval = kCFCalendarUnitWeekday;
[[UIApplication sharedApplication]scheduleLocalNotification:appDelegate.localNotification1];
if(dateWithTime2!=nil){
[[UIApplication sharedApplication]scheduleLocalNotification:appDelegate.localNotification2];
}
if(dateWithTime3!=nil){
[[UIApplication sharedApplication]scheduleLocalNotification:appDelegate.localNotification3];
}
}
else if([_repeatDaysTextField.text isEqualToString:@"Bi-Weekly"]){
}
else if([_repeatDaysTextField.text isEqualToString:@"Monthly"]){
appDelegate.localNotification1.repeatInterval = kCFCalendarUnitMonth;
[[UIApplication sharedApplication]scheduleLocalNotification:appDelegate.localNotification1];
if(dateWithTime2!=nil){
[[UIApplication sharedApplication]scheduleLocalNotification:appDelegate.localNotification2];
}
if(dateWithTime3!=nil){
[[UIApplication sharedApplication]scheduleLocalNotification:appDelegate.localNotification3];
}
}
else if([_repeatDaysTextField.text isEqualToString:@"Yearly"]){
appDelegate.localNotification1.repeatInterval = kCFCalendarUnitYear;
[[UIApplication sharedApplication]scheduleLocalNotification:appDelegate.localNotification1];
if(dateWithTime2!=nil){
[[UIApplication sharedApplication]scheduleLocalNotification:appDelegate.localNotification2];
}
if(dateWithTime3!=nil){
[[UIApplication sharedApplication]scheduleLocalNotification:appDelegate.localNotification3];
}
}
};
//block ends here
//method to set notification
[self setNotification:notificationBlock];
}
-(void)setNotification:(void(^)(void))setNotificationBlock{
setNotificationBlock();
}
最佳答案
我得到了解决方案。在方法中，didReceiveLocalNotification:，我将通知对象添加到“scheduledNotifications”数组中。因此每次安排通知时，都会将相同的对象添加到“scheduledNotifications”数组中一次又一次地被解雇。
[UIApplication sharedApplication]scheduledNotifications = notification;
注意:忽略didReceiveLocalNotification中的这条语句:
关于ios - UILocalNotification 在应用程序启动时被重复调用，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/32438422/