有谁能告诉我这次崩溃的原因是什么，因为我不知道会出现什么问题。这里是崩溃日志：
Incident Identifier: 517593EA-7CBC-4790-A924-966938AAA01B
CrashReporter Key: 179f2e12142cea96d45f2f6475c7f89a7a702d90
Hardware Model: iPhone1,2
Process: AppName [3579]
Path: /var/mobile/Applications/9FBBBD37-2A31-4240-A8AC-64E5BD0B00C0/AppName.app/AppName
Identifier: AppName
Version: ??? (???)
Code Type: ARM (Native)
Parent Process: launchd [1]
Date/Time: 2011-04-04 15:51:32.466 +0200
OS Version: iPhone OS 4.2.1 (8C148)
Report Version: 104
Exception Type: EXC_BAD_ACCESS (SIGBUS)
Exception Codes: KERN_PROTECTION_FAILURE at 0x00000004
Crashed Thread: 9
Thread 0:
0 libSystem.B.dylib 0x35d5b3b0 mach_msg_trap + 20
1 libSystem.B.dylib 0x35d5d894 mach_msg + 60
2 CoreFoundation 0x37521f7c __CFRunLoopServiceMachPort + 88
3 CoreFoundation 0x37521780 __CFRunLoopRun + 400
4 CoreFoundation 0x37521504 CFRunLoopRunSpecific + 220
5 CoreFoundation 0x37521412 CFRunLoopRunInMode + 54
6 GraphicsServices 0x33e76d1c GSEventRunModal + 188
7 UIKit 0x3591d574 -[UIApplication _run] + 580
8 UIKit 0x3591a550 UIApplicationMain + 964
9 AppName 0x00002c9a main (main.m:13)
10 AppName 0x00002c64 start + 32
Thread 1:
0 libSystem.B.dylib 0x35d8f974 kevent + 24
1 libSystem.B.dylib 0x35e5e2fc _dispatch_mgr_invoke + 88
2 libSystem.B.dylib 0x35e5dd68 _dispatch_queue_invoke + 96
3 libSystem.B.dylib 0x35e5d788 _dispatch_worker_thread2 + 120
4 libSystem.B.dylib 0x35de6970 _pthread_wqthread + 392
5 libSystem.B.dylib 0x35ddd2fc start_wqthread + 0
Thread 2:
0 libSystem.B.dylib 0x35d5b3b0 mach_msg_trap + 20
1 libSystem.B.dylib 0x35d5d894 mach_msg + 60
2 CoreFoundation 0x37521f7c __CFRunLoopServiceMachPort + 88
3 CoreFoundation 0x37521780 __CFRunLoopRun + 400
4 CoreFoundation 0x37521504 CFRunLoopRunSpecific + 220
5 CoreFoundation 0x37521412 CFRunLoopRunInMode + 54
6 WebCore 0x3318bd14 RunWebThread(void*) + 524
7 libSystem.B.dylib 0x35de5b44 _pthread_start + 364
8 libSystem.B.dylib 0x35dd77a4 thread_start + 0
Thread 3:
0 libSystem.B.dylib 0x35de454c __semwait_signal + 24
1 libSystem.B.dylib 0x35d5d198 nanosleep + 120
2 Foundation 0x351e066a +[NSThread sleepForTimeInterval:] + 98
3 AppName 0x00005b40 -[Syncer requestPump] (Syncer.m:116)
4 Foundation 0x3515cb8a -[NSThread main] + 42
5 Foundation 0x35155b90 __NSThread__main__ + 908
6 libSystem.B.dylib 0x35de5b44 _pthread_start + 364
7 libSystem.B.dylib 0x35dd77a4 thread_start + 0
Thread 4:
0 libSystem.B.dylib 0x35d5b3b0 mach_msg_trap + 20
1 libSystem.B.dylib 0x35d5d894 mach_msg + 60
2 CoreFoundation 0x37521f7c __CFRunLoopServiceMachPort + 88
3 CoreFoundation 0x37521780 __CFRunLoopRun + 400
4 CoreFoundation 0x37521504 CFRunLoopRunSpecific + 220
5 CoreFoundation 0x37521412 CFRunLoopRunInMode + 54
6 Foundation 0x3517ec4e +[NSURLConnection(NSURLConnectionReallyInternal) _resourceLoadLoop:] + 210
7 Foundation 0x3515cb8a -[NSThread main] + 42
8 Foundation 0x35155b90 __NSThread__main__ + 908
9 libSystem.B.dylib 0x35de5b44 _pthread_start + 364
10 libSystem.B.dylib 0x35dd77a4 thread_start + 0
Thread 5:
0 libSystem.B.dylib 0x35d848d8 select$DARWIN_EXTSN + 20
1 CoreFoundation 0x3755aa34 __CFSocketManager + 356
2 libSystem.B.dylib 0x35de5b44 _pthread_start + 364
3 libSystem.B.dylib 0x35dd77a4 thread_start + 0
Thread 6:
0 libSystem.B.dylib 0x35de72fc __workq_kernreturn + 8
1 libSystem.B.dylib 0x35de6b50 _pthread_wqthread + 872
2 libSystem.B.dylib 0x35ddd2fc start_wqthread + 0
Thread 7:
0 libSystem.B.dylib 0x35de72fc __workq_kernreturn + 8
1 libSystem.B.dylib 0x35de6b50 _pthread_wqthread + 872
2 libSystem.B.dylib 0x35ddd2fc start_wqthread + 0
Thread 8:
0 libSystem.B.dylib 0x35de72fc __workq_kernreturn + 8
1 libSystem.B.dylib 0x35de6b50 _pthread_wqthread + 872
2 libSystem.B.dylib 0x35ddd2fc start_wqthread + 0
Thread 9 Crashed:
0 CoreFoundation 0x374fec60 __CFBasicHashAddValue + 140
1 CoreFoundation 0x374ff8fc CFBasicHashAddValue + 276
2 CoreFoundation 0x3750410a CFSetAddValue + 90
3 CoreFoundation 0x3752be2a -[__NSCFSet addObject:] + 34
4 CoreData 0x34998002 -[NSManagedObjectContext(_NSInternalAdditions) _insertObjectWithGlobalID:globalID:] + 134
5 CoreData 0x34997ec6 -[NSManagedObjectContext insertObject:] + 58
6 CoreData 0x34979cbc -[NSManagedObject initWithEntity:insertIntoManagedObjectContext:] + 248
7 AppName 0x00066512 -[SNServerChanges newItemWithJSONStringFor:withList:] (SNServerChanges.m:655)
8 AppName 0x0006847a -[SNServerChanges requestDidFinishThread:] (SNServerChanges.m:282)
9 AppName 0x00065b28 -[SNServerChanges makeChanges:] (SNServerChanges.m:41)
10 Foundation 0x3515cb8a -[NSThread main] + 42
11 Foundation 0x35155b90 __NSThread__main__ + 908
12 libSystem.B.dylib 0x35de5b44 _pthread_start + 364
13 libSystem.B.dylib 0x35dd77a4 thread_start + 0
Thread 9 crashed with ARM Thread State:
r0: 0x0405ceb0 r1: 0x00000000 r2: 0x00000004 r3: 0x00000001
r4: 0x0405ceb0 r5: 0x002e1c20 r6: 0x00000004 r7: 0x04468884
r8: 0x00000001 r9: 0x044688ac r10: 0x0405ceb0 r11: 0x002bf670
ip: 0x00000000 sp: 0x04468870 lr: 0x34982145 pc: 0x374fec60
cpsr: 0x20000010
我知道的一件事是，当我尝试向Core Data添加新对象时出现了问题。
这就是我设置核心数据的方式：
- (id) init {
if (self = [super init]) {
NSString* path = [[NSBundle mainBundle] pathForResource:@"Main210" ofType:@"mom"];
NSURL* url = [NSURL fileURLWithPath:path];
url = [[NSURL alloc] initFileURLWithPath:path];
managedObjectModel = [[NSManagedObjectModel alloc] initWithContentsOfURL:url];
NSDictionary *options = [NSDictionary dictionaryWithObjectsAndKeys:
[NSNumber numberWithBool:YES], NSMigratePersistentStoresAutomaticallyOption, nil];
NSURL *storeUrl = [NSURL fileURLWithPath: [[self applicationDocumentsDirectory] stringByAppendingPathComponent: @"data.bin"]];
NSError *error = nil;
sqlite3_enable_shared_cache(0); // from apple Bug ID# 8055992
persistentStoreCoordinator = [[NSPersistentStoreCoordinator alloc] initWithManagedObjectModel:[self managedObjectModel]];
if (![persistentStoreCoordinator addPersistentStoreWithType:NSSQLiteStoreType configuration:nil URL:storeUrl options:options error:&error])
{
NSLog(@"Error: %@ \n\n userInfo: %@ \n\n ", error, [error userInfo]);
NSError *underlyingError = [[error userInfo] objectForKey:NSUnderlyingErrorKey];
if (underlyingError) {
NSLog(@"Underlying error: %@ \n\n userInfo: %@ \n\n", underlyingError, [underlyingError userInfo]);
}
NSArray *detailedErrors = [[error userInfo] objectForKey:NSDetailedErrorsKey];
for (NSError *detailError in detailedErrors) {
NSLog(@"Detailed error: %@ \n\n userInfo: %@ \n\n", detailError, [detailError userInfo]);
}
abort();
}
if (persistentStoreCoordinator != nil) {
managedObjectContext = [[NSManagedObjectContext alloc] init];
[managedObjectContext setPersistentStoreCoordinator: persistentStoreCoordinator];
NSUndoManager *undoManager = [[NSUndoManager alloc] init];
[managedObjectContext setUndoManager:undoManager];
[managedObjectContext setMergePolicy:NSMergeByPropertyObjectTrumpMergePolicy];
}
}
return self;
}
导致崩溃的功能：
-(void) newItemWithJSONStringFor:(NSArray*) itemsArray withList:(Lista*) lista {
NSAutoreleasePool* pool = [[NSAutoreleasePool alloc] init];
NSNumber *databaseID;
if(LOG==1)NSLog(@"Lista : %@, itemsArrayCount: %d",[lista name], [itemsArray count]);
for (int i=0; i<itemsArray.count; i++) {
[NSThread sleepForTimeInterval:EACHITEMWAITTIME];
NSDictionary* jsonItem = [itemsArray objectAtIndex:i];
databaseID = [jsonItem valueForKey:@"Id"];
NSFetchRequest *request = [[NSFetchRequest alloc] init];
NSEntityDescription *entity = [NSEntityDescription entityForName:@"Item" inManagedObjectContext:[CoreDataHandler syncContext]];
[request setEntity:entity];
NSPredicate *predicate = [NSPredicate predicateWithFormat:@"databaseID == %qi", [databaseID longLongValue]];
[request setPredicate:predicate];
NSError* error;
NSMutableArray *mutableFetchResults = [[[CoreDataHandler syncContext] executeFetchRequest:request error:&error] mutableCopy];
[request release];
BOOL flag = YES; //will item be created?
if (! (mutableFetchResults && [mutableFetchResults count] == 0) ) {
flag = NO;
}
Item* item = [mutableFetchResults lastObject];
if (!item) {
NSEntityDescription *entity = [NSEntityDescription entityForName:@"Item" inManagedObjectContext:[CoreDataHandler syncContext]];
item = [[NSManagedObject alloc] initWithEntity:entity insertIntoManagedObjectContext:[CoreDataHandler syncContext]];
item.databaseID = databaseID;
item.databaseIDSet = [NSNumber numberWithBool:YES];
item.lista = lista;
[mutableFetchResults addObject:item];
}
else {
if(LOG==1)NSLog(@"SNServerChanges - newItemWithJSONString - Modyfing");
}
if(LOG==1)NSLog(@"SNServerChanges - newItemWithJSONString - FillingItem");
// if(LOG==1)NSLog(@"SNServerChanges - newItemWithJSONString - Making new");
//Nazwa
if ([jsonItem valueForKey:@"N"] != [NSNull null])
item.name = [jsonItem valueForKey:@"N"];
//Opis
if ([jsonItem valueForKey:@"D"] != [NSNull null])
item.desc = [jsonItem valueForKey:@"D"];
//Ilosc
if ([jsonItem valueForKey:@"Q"] != [NSNull null])
item.quantity = [jsonItem valueForKey:@"Q"];
//Jednostka
if ([jsonItem valueForKey:@"U"] != [NSNull null])
item.unit = [jsonItem valueForKey:@"U"];
//Checked
if ([jsonItem valueForKey:@"C"] != [NSNull null]){
NSLog(@"SC New : %@, %d",[item fullName], [[item checked] boolValue]);
if(![item.checkedChanged boolValue]){
item.checked = [NSNumber numberWithBool:[[jsonItem valueForKey:@"C"] boolValue]];
}
else
[SyncManager doNextSync];
}
//Pozycja
if ([jsonItem valueForKey:@"O"] != [NSNull null])
item.position = [NSNumber numberWithInt: [[jsonItem valueForKey:@"O"] intValue]];
//Reklama
if([jsonItem valueForKey:@"Adv"]!= nil && [jsonItem valueForKey:@"Adv"]!=[NSNull null]) {
NSDictionary* temp = [jsonItem valueForKey:@"Adv"];
NSString* tempString = [NSString stringWithFormat:@"%@",[temp valueForKey:@"T"]];
item.advert = tempString;
}
//Cena
if ( [jsonItem valueForKey:@"P"] != nil && [jsonItem valueForKey:@"P"]!=[NSNull null])
{
NSObject* obj = [jsonItem valueForKey:@"P"];
item.price=[NSNumber numberWithDouble:[[jsonItem valueForKey:@"P"] doubleValue]];
}
if ([jsonItem valueForKey:@"Pe"] != [NSNull null])
item.priceEstimated = [NSNumber numberWithBool:[[jsonItem valueForKey:@"Pe"] boolValue]];
if ([jsonItem valueForKey:@"Ci"] != [NSNull null])
item.categoryID = [NSNumber numberWithInt: [[jsonItem valueForKey:@"Ci"] intValue]];
if (flag) {
if ( [item.checked boolValue] )
lista.checked = [NSNumber numberWithInt:[lista.checked intValue]+1];
lista.count = [NSNumber numberWithInt:[lista.count intValue]+1];
}
// if(LOG==1)NSLog(@"SNServerChanges - newItemWithJSONString - Fetching");
if(LOG==1)NSLog(@"SNServerChanges - newItemWithJSONString - AddingToItemCache");
if(LOG==1)NSLog(@"\tItem : %@", [item name]);
//[ItemCache processItem: item];
// [(SNServerChanges*)[SNServerChanges sharedInstance] performSelectorOnMainThread:@selector(saveCoreData) withObject:nil waitUntilDone:YES];
if(LOG==1)NSLog(@"SNServerChanges - newItemWithJSONString - ItemAdded");
}
[pool drain];
}
答案 0 :(得分：1)
我看不出你出错的地方（除非模型中没有Item实体 - 为什么不NSLog(@"%@",item);？）。我总是使用不同的调用来添加新对象，而不是显式分配NSManagedObject：
[NSEntityDescription insertNewObjectForEntityForName:@"Item"
inManagedObjectContext:managedObjectContext];
不确定是否重要。
答案 1 :(得分：0)
该应用程序可能会崩溃：
item = [[NSManagedObject alloc] initWithEntity:entity insertIntoManagedObjectContext:[CoreDataHandler syncContext]];
您之前已从item开始定义Item，但现在您正在为其分配通用NSManagedObject。这可能是事故的原因。