首先要创建 AddressContact 类,
#import <Foundation/Foundation.h> //---------AddressContact的.h文件
@interface AddressContact : NSObject
{
NSString *_name;
NSString *_sex;
NSString *_phone;
NSString *_address;
NSString *_groupName;
NSInteger _age;
}
- (instancetype)initWithName:(NSString *)name phone:(NSString *)phone;
- (instancetype)initWithName:(NSString *)name phone:(NSString *)phone sex:(NSString *)sex address:(NSString *)address groupName:(NSString *)groupName age:(NSInteger)age;
- (NSString *)groupName;
- (NSString *)phone;
- (NSString *)sex;
- (NSString *)name;
- (NSInteger)age;
//输出信息,
- (void)displayContactInfo;
//比较年龄
- (NSComparisonResult)compareAge:(AddressContact *)addressContact;
//比较姓名
- (NSComparisonResult)compareName:(AddressContact *)addressContact;
@end
----
#import "AddressContact.h" //------AddressContact的.m文件
@implementation AddressContact
- (instancetype)initWithName:(NSString *)name phone:(NSString *)phone
{
return [self initWithName:name phone:phone sex:nil address:nil groupName:nil age:0];
}
- (instancetype)initWithName:(NSString *)name phone:(NSString *)phone sex:(NSString *)sex address:(NSString *)address groupName:(NSString *)groupName age:(NSInteger)age
{
self = [super init];
if (self) {
_name = name;
_phone = phone;
_sex = sex;
_address = address;
_groupName = groupName;
_age = age;
}
return self;
}
- (NSString *)groupName
{
return _groupName;
}
- (NSString *)phone
{
return _phone;
}
- (NSString *)sex
{
return _sex;
}
- (NSString *)name
{
return _name;
}
- (NSInteger)age
{
return _age;
}
- (void)displayContactInfo
{
NSLog(@"%@,%ld",_name,_age);
}
//比较年龄
- (NSComparisonResult)compareAge:(AddressContact *)addressContact
{
NSInteger myAge = [self age];
NSInteger otherAge = [addressContact age];
if (myAge > otherAge) {
return NSOrderedAscending;
}else if(myAge < otherAge){
return NSOrderedDescending;
}else{
return NSOrderedSame;
}
}
//比较姓名
- (NSComparisonResult)compareName:(AddressContact *)addressContact{
NSString *myName = [self name];
NSString *otherName = [addressContact name];
NSComparisonResult result = [myName compare:otherName];
if (result == NSOrderedAscending) {
return NSOrderedDescending;
}else if(result == NSOrderedDescending){
return NSOrderedAscending;
}else {
return NSOrderedSame;
}
}
@end
然后在创建ContactManager类。。。。。。。。。。。
#import <Foundation/Foundation.h> // ------ContactManager的.h文件
#import "AddressContact.h"
@interface ContactManager : NSObject
{
NSMutableDictionary *_contactDict;
}
//添加联系人
- (void)addVContact:(AddressContact *)contact;
//获取某个分组下的联系人。
- (NSArray *)allContactsForGroupName:(NSString *)groupName;
//根据电话号码搜索联系人
- (AddressContact *)contactForPhoneNumber:(NSString *)phoneNumer;
//获取所有女性联系人,按照年龄降序
- (NSArray *)contactForSex:(NSString *)sex;
//根据姓名删除某个联系人
- (void)removeContactForName:(NSString *)name;
//删除某个分组的全部联系人
-(void)removeContactForGroupName:(NSString *)groupName;
@end
#import "ContactManager.h" //--------ContactManager的.m文件
@implementation ContactManager
//添加联系人
- (void)addVContact:(AddressContact *)contact
{
NSString *groupName = [contact groupName];
NSMutableArray *array = [_contactDict objectForKey:groupName];
if (array == nil) {
array = [NSMutableArray arrayWithCapacity:0];
[array addObject:contact];
[_contactDict setObject:array forKey:groupName];
}else{
[array addObject: contact];
}
}
//获取某个分组下的联系人。
- (NSArray *)allContactsForGroupName:(NSString *)groupName
{
NSMutableArray *array = [_contactDict objectForKey:groupName];
[array sortUsingSelector:@selector(compareName:)];
return array;
}
//根据电话号码搜索联系人
- (AddressContact *)contactForPhoneNumber:(NSString *)phoneNumer
{
for (NSString *key in _contactDict) {
NSMutableArray *array = [_contactDict objectForKey:key];
for (AddressContact *contact in array) {
if ([[contact phone] isEqualToString:phoneNumer]) {
return contact;
}
}
}
return nil;
}
//获取所有女性联系人,按照年龄降序
- (NSArray *)contactForSex:(NSString *)sex
{
NSMutableArray *sexArray = [NSMutableArray arrayWithCapacity:0];
for (NSString *key in _contactDict) {
NSMutableArray *array = [_contactDict objectForKey:key];
for (AddressContact *contact in array) {
if ([[contact sex] isEqualToString:sex]) {
[sexArray addObject:contact];
}
}
}
[sexArray sortedArrayUsingSelector:@selector(compareAge:)];
return sexArray;
}
//根据姓名删除某个联系人
- (void)removeContactForName:(NSString *)name
{
for (NSString *key in _contactDict) {
NSMutableArray *array = [_contactDict objectForKey:key];
for (AddressContact *contact in array) {
if ([[contact name] isEqualToString:name]) {
[array removeObject:contact];
}
}
}
}
//删除某个分组的全部联系人
-(void)removeContactForGroupName:(NSString *)groupName
{
[_contactDict removeObjectForKey:groupName];
}
@end
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