NSCalendar 崩溃应用程序

发布于 2024-09-24 10:29:13 字数 777 浏览 7 评论 0原文

我正在 viewDidLoad 中初始化 NSCalendar，如下所示：

gregorian = [NSCalendar currentCalendar];

日历在相应的 .h 文件中声明如下：

NSCalendar *gregorian;

当从方法访问日历时，我的应用程序崩溃：

- (void)someMethod{
  unsigned int unitFlags;
  unitFlags = NSHourCalendarUnit | NSMinuteCalendarUnit;
  [gregorian 
    components:unitFlags 
    fromDate:[NSDate date] 
    toDate:[NSDate date] 
    options:0];
}

这是从崩溃日志中看来相关的内容：

类型：EXC_BAD_ACCESS (SIGBUS)
异常代码：KERN_PROTECTION_FAILURE 位于 0x0000000000000015
崩溃线程：0 调度队列：com.apple.main-thread

应用程序特定信息：
objc_msgSend() 选择器名称：组件：fromDate：toDate：选项：
iPhone 模拟器 225、iPhone OS 3.2 (iPad/7W367a)

有什么想法吗？

谢谢

原文

I'm initializing a NSCalendar in viewDidLoad like this:

gregorian = [NSCalendar currentCalendar];

The calendar is declared in the corresponding .h file like this:

NSCalendar *gregorian;

When accessing the calendar from a method my app crashes:

- (void)someMethod{
  unsigned int unitFlags;
  unitFlags = NSHourCalendarUnit | NSMinuteCalendarUnit;
  [gregorian 
    components:unitFlags 
    fromDate:[NSDate date] 
    toDate:[NSDate date] 
    options:0];
}

This is what seems relevant from the crash log:

Exception Type: EXC_BAD_ACCESS (SIGBUS)
Exception Codes: KERN_PROTECTION_FAILURE at 0x0000000000000015
Crashed Thread: 0 Dispatch queue: com.apple.main-thread

Application Specific Information:
objc_msgSend() selector name: components:fromDate:toDate:options:
iPhone Simulator 225, iPhone OS 3.2 (iPad/7W367a)

Any ideas ?

Thanks

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