实现中等难度通讯录。需求:
1、定义联系人类AddressContact。实例变量:姓名(拼音,?字母大写)、性别、电话号码、住址、分组名称、年龄。?法:?定义初始化方法(姓名、电话号码)、显?联系人信息
2、在main.m中定义字典,分组管理所有联系人。分组名为26个?写的英文字母。
3、可以添加联系人对象,如果姓名或电话号码为空,添加失败。添加联系人到匹配的分组。
4、获取某个分组名称下所有联系人,并且按照姓名升序排列。
5、从通讯录中根据电话号码搜索联系人。
6、获取所有女性的联系人,并且按照年龄的降序排列。
7、根据姓名删除某个联系人。
8、删除某个分组的全部联系人。
Contact.h中代码
1 #import <Foundation/Foundation.h>
2
3 //这是一个联系人类,用于存储单个联系人的信息
4 //并且能够提供联系人相关内容
5 //这个类是一个Model类
6
7 @interface Contact : NSObject
8 {
9 NSString *_name; //姓名
10 NSString *_sex; //性别
11 NSString *_phone; //电话
12 NSString *_address; //地址
13 NSString *_groupName; //组名
14 NSInteger _age; //年龄
15 }
16 //初始化方法,初始化的时候需要给定一个姓名和电话
17 - (instancetype)initWithName:(NSString *)name phone:(NSString *)phone;
18
19 - (instancetype)initWithName:(NSString *)name phone:(NSString *)phone sex:(NSString *)sex age:(NSInteger)age;
20
21 //显示联系人信息
22 - (void)displayInfo;
23
24 //获取联系人姓名
25 - (NSString *)name;
26
27 //获取联系人电话
28 - (NSString *)phone;
29
30 //获取联系人分组信息
31 - (NSString *)groupName;
32
33 //获取联系人性别
34 - (NSString *)sex;
35
36 - (NSInteger)age;
37
38 //联系人按姓名比较
39 - (NSComparisonResult)compareByName:(Contact *)contact;
40
41 //联系人按年龄比较
42 - (NSComparisonResult)compareByAge:(Contact *)contact;
43
44 @end
Contact.m中代码
1 #import "Contact.h"
2
3 @implementation Contact
4
5 - (instancetype)initWithName:(NSString *)name phone:(NSString *)phone
6 {
7 return [self initWithName:name phone:phone sex:nil age:0];
8 }
9 //指定初始化方法
10 - (instancetype)initWithName:(NSString *)name phone:(NSString *)phone sex:(NSString *)sex age:(NSInteger)age
11 {
12 self = [super init];
13 if (self) {
14 _name = name;
15 _sex = sex;
16 _groupName = [_name substringToIndex:1];
17 _age = age;
18 _phone = phone;
19 }
20 return self;
21 }
22
23 - (void)displayInfo
24 {
25 NSLog(@"name:%@ sex:%@ phone:%@ address:%@ group:%@ age:%ld",_name,_sex,_phone,_address,_groupName,_age);
26 }
27
28
29 - (NSString *)name
30 {
31 return _name;
32 }
33
34 - (NSString *)sex
35 {
36 return _sex;
37 }
38
39 - (NSString *)phone
40 {
41 return _phone;
42 }
43
44
45 - (NSString *)groupName
46 {
47 return _groupName;
48 }
49
50 - (NSComparisonResult)compareByName:(Contact *)contact
51 {
52 NSString *myName = [self name];
53 NSString *otherName = [contact name];
54 NSComparisonResult result = [myName compare:otherName];
55 if (result == NSOrderedAscending) {
56 return NSOrderedDescending;
57 }else if (result == NSOrderedDescending){
58 return NSOrderedAscending;
59 }else {
60 return NSOrderedSame;
61 }
62 // return result;
63 }
64
65 - (NSInteger)age
66 {
67 return _age;
68 }
69
70 - (NSComparisonResult)compareByAge:(Contact *)contact
71 {
72 NSInteger myAge = [self age];
73 NSInteger otherAge = [contact age];
74 if (myAge > otherAge) {
75 return NSOrderedAscending;
76 }else if (myAge < otherAge){
77 return NSOrderedDescending;
78 }else {
79 return NSOrderedSame;
80 }
81 }
82
83 @end
ContactManager.h中代码
1 #import <Foundation/Foundation.h>
2 #import "Contact.h"
3
4 //这个类是一个联系人管理类,主要用于添加,删除,获取,搜索联系人等
5
6 @interface ContactsManager : NSObject
7 {
8 //用于存储所有联系人的字典
9 NSMutableDictionary *_contactsDic;
10 }
11 - (instancetype)init;
12
13 //添加联系人
14 - (void)addContact:(Contact *)contact;
15
16 //根据groupName获取一组联系人
17 - (NSArray *)contactsForGroupName:(NSString *)groupName;
18
19 //根据电话号码,获取联系人
20 - (Contact *)contactForPhone:(NSString *)phone;
21
22 //根据性别,获取联系人
23 - (NSArray *)contactsForSex:(NSString *)sex;
24
25 //删除指定姓名的联系人
26 - (void)removeContactForName:(NSString *)name;
27
28 //删除指定分组的所有联系人
29 - (void)removeContactsForGroup:(NSString *)groupName;
30
31 //显示所有人的信息
32 - (void)displayAllContacts;
33
34 @end
ContactsManager.m中代码
1 #import "ContactsManager.h"
2
3 @implementation ContactsManager
4
5 -(instancetype)init{
6 self = [super init];
7 if (self) {
8 _contactsDic = [[NSMutableDictionary alloc] initWithCapacity:26];
9 }
10 return self;
11 }
12
13 - (void)addContact:(Contact *)contact
14 {
15 NSString *name = [contact name];
16 NSString *phone = [contact phone];
17 if ([name isEqualToString:@""] || name == nil || [phone isEqualToString:@""] || phone == nil) {
18 return;
19 }
20
21 NSString *groupName = [contact groupName];
22 NSMutableArray *group = [_contactsDic objectForKey:groupName];
23 if (group == nil) {
24 NSLog(@"分组不存在");
25 //创建一个数组,把人放数组里,把数组放字典里
26 group = [[NSMutableArray alloc] initWithCapacity:10];
27 [group addObject:contact];
28 [_contactsDic setObject:group forKey:groupName];
29 }else {
30 [group addObject:contact];
31 }
32 }
33
34 - (NSArray *)contactsForGroupName:(NSString *)groupName
35 {
36 NSMutableArray *group = [_contactsDic objectForKey:groupName];
37 [group sortUsingSelector:@selector(compareByName:)];
38 return group;
39 }
40
41 - (NSArray *)contactsForSex:(NSString *)sex
42 {
43 NSMutableArray *results = [[NSMutableArray alloc] initWithCapacity:10];
44
45 for (NSString *key in _contactsDic) {
46 NSMutableArray *group = [_contactsDic objectForKey:key];
47 for (Contact *c in group) {
48 NSString *s = [c sex];
49 if ([s isEqualToString:sex]) {
50 [results addObject:c];
51 }
52 }
53 }
54
55 [results sortUsingSelector:@selector(compareByAge:)];
56
57 return results;
58 }
59
60 - (Contact *)contactForPhone:(NSString *)phone
61 {
62 for (NSString *key in _contactsDic) {
63 NSMutableArray *group = [_contactsDic objectForKey:key];
64 for (Contact *c in group) {
65 NSString *p = [c phone];
66 if ([p isEqualToString:phone]) {
67 return c;
68 }
69 }
70 }
71 return nil;
72 }
73
74 - (void)removeContactForName:(NSString *)name
75 {
76 NSMutableArray *arr = nil;
77 Contact *toDelete = nil;
78 for (NSString *key in _contactsDic) {
79 NSMutableArray *group = [_contactsDic objectForKey:key];
80 for (Contact *c in group) {
81 NSString *n = [c name];
82 if ([n isEqualToString:name]) {
83 arr = group;
84 toDelete = c;
85 }
86 }
87 }
88 [arr removeObject:toDelete];
89 }
90 - (void)removeContactsForGroup:(NSString *)groupName
91 {
92 [_contactsDic removeObjectForKey:groupName];
93 }
94
95 - (void)displayAllContacts
96 {
97 NSArray *allKeys = [_contactsDic allKeys];
98 NSArray *sortedKeys = [allKeys sortedArrayUsingSelector:@selector(compare:)];
99 for (NSString *key in sortedKeys) {
100 NSMutableArray *group = [_contactsDic objectForKey:key];
101 NSLog(@"---%@---",key);
102 for (Contact *c in group) {
103 [c displayInfo];
104 }
105 }
106
107
108 // for (NSString *key in _contactsDic) {
109 // NSMutableArray *group = [_contactsDic objectForKey:key];
110 // NSLog(@"---%@---",key);
111 // for (Contact *c in group) {
112 // [c displayInfo];
113 // }
114 // }
115 }
116
117 @end
main.m中代码
1 #import <Foundation/Foundation.h>
2 #import "ContactsManager.h"
3
4 int main(int argc, const char * argv[])
5 {
6 // NSString *allColorString = [NSString stringWithContentsOfFile:@"/Users/apple/Desktop/crayons.txt" encoding:NSUTF8StringEncoding error:nil];
7 // NSArray *colors = [allColorString componentsSeparatedByString:@"\n"];
8 // NSLog(@"%@",[[colors objectAtIndex:0] componentsSeparatedByString:@" #"]);
9
10
11 //联系人管理器
12 ContactsManager *cm = [[ContactsManager alloc] init];
13 //联系人1
14 Contact *mohang = [[Contact alloc] initWithName:@"Mohan" phone:@"13925082699" sex:@"男" age:22];
15 //联系人2
16 Contact *mochou = [[Contact alloc] initWithName:@"Mochou" phone:@"13854389438" sex:@"女" age:20];
17 //联系人3
18 Contact *moyan = [[Contact alloc] initWithName:@"Moyan" phone:@"18100000000" sex:@"男" age:46];
19
20 //联系人4
21 Contact *yangbailao = [[Contact alloc] initWithName:@"Yangbailao" phone:@"13944774747" sex:@"男" age:56];
22 //联系人5
23 Contact *yangxier = [[Contact alloc] initWithName:@"Yangxier" phone:@"13837373737" sex:@"女" age:18];
24 //联系人6
25 Contact *panjinlian = [[Contact alloc] initWithName:@"Panjinlian" phone:@"18188888888" sex:@"女" age:27];
26
27 //联系人1
28 Contact *caocao = [[Contact alloc] initWithName:@"Caocao" phone:@"1811111111" sex:@"男" age:47];
29 //联系人2
30 Contact *caozhi = [[Contact alloc] initWithName:@"Caozhi" phone:@"13274747474" sex:@"男" age:16];
31 //联系人3
32 Contact *caopi = [[Contact alloc] initWithName:@"Caopi" phone:@"18699995555" sex:@"男" age:34];
33
34 [cm addContact:mohang];
35 [cm addContact:mochou];
36 [cm addContact:moyan];
37 [cm addContact:panjinlian];
38 [cm addContact:yangbailao];
39 [cm addContact:yangxier];
40 [cm addContact:caocao];
41 [cm addContact:caopi];
42 [cm addContact:caozhi];
43
44 // [cm displayAllContacts];
45
46 // [cm removeContactForName:@"Mohang"];
47 // [cm removeContactForName:@"Moyan"];
48 //
49 //// [[cm contactForPhone:@"18188888888"] displayInfo];
50 //// NSLog(@"---");
51 //// NSArray *mContacts = [cm contactsForSex:@"女"];
52 // NSArray *mContacts = [cm contactsForGroupName:@"M"];
53 //
54 //// NSLog(@"%@",mContacts);
55 // for (Contact *c in mContacts) {
56 // [c displayInfo];
57 // }
58 //// [cm removeContactForName:@"Haojianming"];
59
60 return 0;
61 }
一道例题的详解
时间： 2024-10-29 02:47:56