Ios 核心数据冻结主线程

我对核心数据有点陌生，在制作游戏点数计数器时遇到了一些古怪的东西

我有以下代码用于为匹配创建新的点对象（静态保持器“button.pointHolder”不是核心数据对象）：

当我的核心数据增长时，这似乎会阻塞主线程。（这是一个没有积分持有者的新比赛实例与否无关。当我的核心数据不断增长时，无论发生什么情况，这都是滞后的）

日志：

2013-11-04 11:48:53.059 [463:60b] before block
2013-11-04 11:48:53.060 [463:60b] after block
2013-11-04 11:48:53.062 [463:60b] in block
2013-11-04 11:48:53.606 [463:60b] in block dispatch_get_main_queue

我正在创建这样的对象：

- (PointHolderType *)insertPointHolderForTeam:(NSString*)team withStaticHolder:(PointHolder *)holder
{
    PointHolderType *holderType = [NSEntityDescription insertNewObjectForEntityForName:@"PointHolderType" inManagedObjectContext:self.match.managedObjectContext];

    holderType.type = [NSNumber numberWithInt:holder.pointCounterType];
    holderType.team = team;
    holderType.points = [NSNumber numberWithInteger:holder.pointsAdded];
    holderType.match = self.match;

    return holderType;
}

Match *newMatch = [NSEntityDescription insertNewObjectForEntityForName:@"Match" inManagedObjectContext:self.managedObjectContext];

-(void) useDocument
{
    NSURL *url = [[[NSFileManager defaultManager] URLsForDirectory:NSDocumentDirectory inDomains:NSUserDomainMask] lastObject];
    url = [url URLByAppendingPathComponent:@"brannboll_document"];

    UIManagedDocument *document = [[UIManagedDocument alloc] initWithFileURL:url];

    if(![[NSFileManager defaultManager] fileExistsAtPath:url.path])
    {
        //create
        [document saveToURL:url forSaveOperation:UIDocumentSaveForCreating completionHandler:^(BOOL success) {
            if(success)
            {
                self.managedObjectContext = document.managedObjectContext;
            }
        }];
    }
    else if(document.documentState == UIDocumentStateClosed)
    {
        //Open it
        [document openWithCompletionHandler:^(BOOL success) {
            self.managedObjectContext = document.managedObjectContext;
        }];
    }
    else //try to use it
    {
        self.managedObjectContext = document.managedObjectContext;
    }
}

此外，如果我删除此行：

holderType.match = self.match;

我得到了一个完全响应的用户界面。这让我怀疑它是否与我从“匹配”本身使用的managedObjectContext有关

其他资料：

我正在这样创建我的比赛：

- (PointHolderType *)insertPointHolderForTeam:(NSString*)team withStaticHolder:(PointHolder *)holder
{
    PointHolderType *holderType = [NSEntityDescription insertNewObjectForEntityForName:@"PointHolderType" inManagedObjectContext:self.match.managedObjectContext];

    holderType.type = [NSNumber numberWithInt:holder.pointCounterType];
    holderType.team = team;
    holderType.points = [NSNumber numberWithInteger:holder.pointsAdded];
    holderType.match = self.match;

    return holderType;
}

Match *newMatch = [NSEntityDescription insertNewObjectForEntityForName:@"Match" inManagedObjectContext:self.managedObjectContext];

-(void) useDocument
{
    NSURL *url = [[[NSFileManager defaultManager] URLsForDirectory:NSDocumentDirectory inDomains:NSUserDomainMask] lastObject];
    url = [url URLByAppendingPathComponent:@"brannboll_document"];

    UIManagedDocument *document = [[UIManagedDocument alloc] initWithFileURL:url];

    if(![[NSFileManager defaultManager] fileExistsAtPath:url.path])
    {
        //create
        [document saveToURL:url forSaveOperation:UIDocumentSaveForCreating completionHandler:^(BOOL success) {
            if(success)
            {
                self.managedObjectContext = document.managedObjectContext;
            }
        }];
    }
    else if(document.documentState == UIDocumentStateClosed)
    {
        //Open it
        [document openWithCompletionHandler:^(BOOL success) {
            self.managedObjectContext = document.managedObjectContext;
        }];
    }
    else //try to use it
    {
        self.managedObjectContext = document.managedObjectContext;
    }
}

我的管理对象上下文如下：

- (PointHolderType *)insertPointHolderForTeam:(NSString*)team withStaticHolder:(PointHolder *)holder
{
    PointHolderType *holderType = [NSEntityDescription insertNewObjectForEntityForName:@"PointHolderType" inManagedObjectContext:self.match.managedObjectContext];

    holderType.type = [NSNumber numberWithInt:holder.pointCounterType];
    holderType.team = team;
    holderType.points = [NSNumber numberWithInteger:holder.pointsAdded];
    holderType.match = self.match;

    return holderType;
}

Match *newMatch = [NSEntityDescription insertNewObjectForEntityForName:@"Match" inManagedObjectContext:self.managedObjectContext];

-(void) useDocument
{
    NSURL *url = [[[NSFileManager defaultManager] URLsForDirectory:NSDocumentDirectory inDomains:NSUserDomainMask] lastObject];
    url = [url URLByAppendingPathComponent:@"brannboll_document"];

    UIManagedDocument *document = [[UIManagedDocument alloc] initWithFileURL:url];

    if(![[NSFileManager defaultManager] fileExistsAtPath:url.path])
    {
        //create
        [document saveToURL:url forSaveOperation:UIDocumentSaveForCreating completionHandler:^(BOOL success) {
            if(success)
            {
                self.managedObjectContext = document.managedObjectContext;
            }
        }];
    }
    else if(document.documentState == UIDocumentStateClosed)
    {
        //Open it
        [document openWithCompletionHandler:^(BOOL success) {
            self.managedObjectContext = document.managedObjectContext;
        }];
    }
    else //try to use it
    {
        self.managedObjectContext = document.managedObjectContext;
    }
}

有什么想法吗？我错过了什么

编辑： 多亏CouchDeveloper在评论中，我设法找到了问题的根源；我的父核心数据表视图控制器，在向匹配对象添加关系时不断调用其fetchrequest。为什么？你告诉我。我通过在ViewDidEnglish中取消实际的fetchrequest来解决这个问题，反之亦然

---

谢谢

您可以使用工具分析代码，并在执行语句

holderType.match=self.match时说明到底什么成本如此高昂。您可能还注意到，
insertpointholderfortam
将在主线程上执行，因为
UIManageDocument
的
managedObjectContext
属性与主线程相关联。在处理核心数据时，我应该使用什么跟踪来获取任何下降输出？一个“时间分析器”这就足以说明发生了什么。似乎每次我添加对象时，父视图控制器（CoreDataTableViewController）都会调用controllerDidChangeContent。这不是我所期望的。fetchrequest适用于类型为“Match”的所有对象。当我向匹配对象添加关系时，为什么它会发出新的请求？Ps.Time Profiler看起来非常棒。非常感谢。我希望我能接受你的评论作为正确答案。