iPhone - UILocalNotification fireDate 问题

发布于 2024-11-04 14:11:37 字数 787 浏览 2 评论 0原文

我正在尝试从已设置的通知中获取 fireDate

这是我的代码：

 NSArray *notificationArray = [[NSArray alloc] initWithObjects:[[UIApplication sharedApplication] scheduledLocalNotifications], nil];



if ([notificationArray count] > 0) {

    NSDate *now = [NSDate date];

    UILocalNotification *locNotification = [[UILocalNotification alloc] init];
    locNotification = [notificationArray objectAtIndex:0];

    NSDate *otherDate = locNotification.fireDate; 
 }

locNotification 有值，但当我尝试实例化 otherDate 时，最后一行我

*** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[__NSArrayM fireDate]: unrecognized selector sent to instance 0x1e4e20'

在第一次抛出时得到 * 调用堆栈：

我真的不知道我做错了什么。

提前致谢

原文

I'm trying to get the fireDate from an already set notification

Heres my code:

 NSArray *notificationArray = [[NSArray alloc] initWithObjects:[[UIApplication sharedApplication] scheduledLocalNotifications], nil];



if ([notificationArray count] > 0) {

    NSDate *now = [NSDate date];

    UILocalNotification *locNotification = [[UILocalNotification alloc] init];
    locNotification = [notificationArray objectAtIndex:0];

    NSDate *otherDate = locNotification.fireDate; 
 }

The locNotification has the values but the last line when I try to instantiate otherDate I'm getting

*** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[__NSArrayM fireDate]: unrecognized selector sent to instance 0x1e4e20'

* Call stack at first throw:

I really don't know what I'm doing wrong.

Thanks in advance

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饮湿 2024-11-11 14:11:37

您使用了错误的初始化方法。您想要的不是 NSArray 的 -initWithObjects:，而是：

NSArray *notificationArray = [[ NSArray alloc ] initWithArray:
                                    [[ UIApplication sharedApplication ]
                                       scheduledLocalNotifications ]];

您会得到异常，因为 notificationArray 仅包含一个对象，即 -scheduledLocalNotifications。

You're using the wrong init method. Instead of NSArray's -initWithObjects:, you want:

NSArray *notificationArray = [[ NSArray alloc ] initWithArray:
                                    [[ UIApplication sharedApplication ]
                                       scheduledLocalNotifications ]];

You get the exception because notificationArray only contains one object, the array returned by -scheduledLocalNotifications.

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