Question

我在探索EKEventKit。我连接我的iPhone并拨打电话以安装日历

EKEventStore *eventDB = [[EKEventStore alloc] init];
NSArray * calendars = [eventDB calendars ];

但是，当我记录日历时，我收到此错误消息

“CADObjectGetIntProperty失败，错误错误 Domain = NSMachErrorDomain Code = 268435459“操作不能完成。（马赫错误268435459 - （ipc / send）无效的目的地端口）“

有人知道这是什么以及为什么我会得到它。感谢

礼

Answer 1

我发现了这个问题。

我之前在我的代码中加载并保留了一个EKEventStore。删除其中一个解决了问题

Reza

Answer 2

我的控制台上有相同的警告日志

早期代码：

"CalendarEventHandler.m"
eventStore = [[EKEventStore alloc] init];


"CalendarEventHandler.h"

@property (nonatomic,strong) EKEventStore *eventStore;

修改代码

self.eventStore = [[EKEventStore alloc] init];//This helped me to remove warning

Answer 3

@discussion to EKEventStore class EKEventsStore.h文件说：

"It is generally best to hold onto a long-lived instance of an event store, most likely as a singleton instance in your application."

此处写的内容如下：Reading and Writing Calendar Events，位于Connecting to the Event Store部分：

"An EKEventStore object requires a relatively large amount of time to initialize and release. Consequently, you should not initialize and release a separate event store for each event-related task. Instead, initialize a single event store when your app loads, and use it repeatedly to ensure that your connection is long-lived."

所以正确的方法是：

@interface MyEventStore : EKEventStore

+ (MyEventStore *)sharedStore;

@end

+ (MyEventStore *)sharedStore
{
    static dispatch_once_t onceToken;
    static MyEventStore *shared = nil;
    dispatch_once(&onceToken, ^{
        shared = [[MyEventStore alloc] init];
    });
    return shared;
}

@end

并使用它来调用[MyEventStore sharedStore]。

这种方法也修复了警告。

Answer 4

使实例'eventDB'成为类成员变量或属性可以解决问题。

EKCalendar和错误域= NSMachErrorDomain代码= 268435459

4 个答案: