我从以下代码收到以下错误,请您告诉我我的问题是什么。
***由于未捕获的异常'NSInternalInconsistencyException'而终止应用程序,原因:'无效更新:第0节中的行数无效。更新后的现有部分中包含的行数(2)必须等于更新前该部分中包含的行数(2),加上或减去从该部分插入或删除的行数(插入0,删除1)。'
- (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath {
if (editingStyle == UITableViewCellEditingStyleDelete) {
id object = [[[self cdArray] objectAtIndex:indexPath.row] retain];
[[self cdArray] removeObject:object];
[[self managedObjectContext] deleteObject:object];
[self refreshArray];
NSError *error = nil;
if (![[self managedObjectContext] save:&error]) {
NSLog(@"\n%s\n%@", __PRETTY_FUNCTION__, [error description]);
}
[[self tableView] deleteRowsAtIndexPaths:[NSArray arrayWithObject:indexPath] withRowAnimation:UITableViewRowAnimationTop];
}
}
- (void) refreshArray {
if ([self cdArray] == nil) {
[self setCdArray:[[NSMutableArray alloc] init]];
}
[cdArray removeAllObjects];
NSFetchRequest *fetchRequest = [[NSFetchRequest alloc] init];
NSError *error = nil;
NSEntityDescription *entity = [NSEntityDescription entityForName:@"Image"
inManagedObjectContext:[self managedObjectContext]];
[fetchRequest setEntity:entity];
NSArray *fetchedObjects = [[self managedObjectContext] executeFetchRequest:fetchRequest error:&error];
for (CDImage *image in fetchedObjects) {
[cdArray addObject:image];
}
[[self tableView] reloadData];
[fetchRequest release];
[[UIApplication sharedApplication] setNetworkActivityIndicatorVisible:NO];
}
答案 0 :(得分:0)
你不应该打电话
[self refreshArray];
直到您在此处提交删除后
NSError *error = nil;
if (![[self managedObjectContext] save:&error]) {
NSLog(@"\n%s\n%@", __PRETTY_FUNCTION__, [error description]);
}
你应该换行。