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我在数组中存储数组,以及NSDictionaries.它是一种实用类型的应用程序,没有设置结构,用户可以根据需要输入嵌套信息.
理想情况下,我需要一个方法来给定一个set参数(一种类,可能是一个字典键)滚动我的数组的整个内容.这是一个例子..
NSMutableArray *array = [[NSMutableArray alloc]init]; NSMutableDictionary *enteredItem = [[NSMutableDictionary alloc]init]; [enteredItem setObject:@"i'm a title" forKey:@"title"]; [enteredItem setObject:@"i'm an id" forKey:@"id"]; [enteredItem setObject:@"i'm a description" forKey:@"description"]; [enteredItem setObject:@"i'm a timestamp" forKey:@"timestamp"]; [enteredItem setObject:array forKey:@"items"]; [array addObject:enteredItem]; [array addObject:anotherDictionary]; [array addObject:moreDictionaries];@H_801_26@所以在上面的例子中,我需要找到包含@“我是id”的字典(并返回它).
希望我的问题很明确.谢谢你尽你所能的帮助.
- (id)findObjectWithKey:(id)key inArray:(NSArray *)array { for (id object in array) { if ([object isKindOfClass:[NSArray class]]) { return [self findObjectWithKey:key inArray:object]; } else if ([object isKindOfClass:[NSDictionary class]]) { return [self findObjectWithKey:key inDictionary:object]; } } return nil; } - (id)findObjectWithKey:(id)key inDictionary:(NSDictionary *)Dict { for (id subKey in Dict) { id object = [Dict objectForKey:subKey]; if ([subKey isEqual:key]) { return object; } else if ([object isKindOfClass:[NSArray class]]) { return [self findObjectWithKey:key inArray:object]; } else if ([object isKindOfClass:[NSDictionary class]]) { return [self findObjectWithKey:key inDictionary:object]; } } return nil; }@H_801_26@然后找到你的对象,只需说:
id object = [self findObjectForKey:@"title" inArray:array];@H_801_26@
- (id)findKeyWithObject:(id)key inArray:(NSArray *)array { for (id object in array) { if ([object isKindOfClass:[NSArray class]]) { return [self findKeyWithObject:key inArray:object]; } else if ([object isKindOfClass:[NSDictionary class]]) { return [self findKeyWithObject:key inDictionary:object]; } } return nil; } - (id)findKeyWithObject:(id)object inDictionary:(NSDictionary *)Dict { for (id key in Dict) { id subObject = [Dict objectForKey:key]; if ([subObject isEqual:object]) { return key; } else if ([subObject isKindOfClass:[NSArray class]]) { return [self findKeyWithObject:object inArray:object]; } else if ([subObject isKindOfClass:[NSDictionary class]]) { return [self findKeyWithObject:object inDictionary:object]; } } return nil; }@H_801_26@然后找到你的钥匙,只需说:
id key = [self findKeyWithObject:object inArray:array];@H_801_26@
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