崩溃后我收到了这个错误:
malloc: *** error for object 0x75617b4: incorrect checksum for freed object - object was probably modified after being freed.
*** set a breakpoint in malloc_error_break to debug
2013-02-05 19:15:44.950 BusinessIdea[3171:15e03] *** Terminating app due to uncaught exception 'NSGenericException', reason: '*** Collection <__NSSetM: 0x72dc5c0> was mutated while being enumerated.'
我不熟悉这个错误。知道它可能是什么吗?
答案 0 :(得分:10)
整个'枚举时修改'错误意味着您可能在迭代它时尝试从集合中删除某些内容。例如
for(NSString *str in array){
if([str isequalToString:@"delete me"]){
[array removeObject:str]; //this will cause a problem,
}
}
相反,如果要使用快速枚举循环,则需要维护要删除的项目列表,然后在迭代步骤后删除它们。如果你想删除项目,替代方法是使用传统的索引循环。