为什么要用CNContactPickerViewController啊？？因为ABPeoplePickerViewController被废弃了啊 虽然可以用但是满足不了强迫症。不废话了！

CNContact使用这个框架的时候大多情况下使用到了KVC

• 1、在Build Phases中的Link Binary With Libraries里导入 Contacts.framework和ContactsUI.framework
• 2、修改info.plist里的权限，key:Privacy - Contacts Usage Description Value:要说明获取通讯录的目的
• 3、上代码啊

#import <ContactsUI/ContactsUI.h>
#import <Contacts/Contacts.h>
@interface ViewController ()<CNContactPickerDelegate>

@end

@implementation ViewController
- (void)viewDidLoad {
    [super viewDidLoad];
    UIButton *btn = [[UIButton alloc] initWithFrame:CGRectMake(100, 100, 150, 50)];
    btn.titleLabel.font = [UIFont systemFontOfSize:10.f];
    [btn setTitle:@"model出通讯录" forState:UIControlStateNormal];
    btn.backgroundColor = [UIColor redColor];
    [btn addTarget:self action:@selector(btnClick) forControlEvents:UIControlEventTouchUpInside];
    [self.view addSubview:btn];
    
    UIButton *btn1 = [[UIButton alloc] initWithFrame:CGRectMake(200, 200, 150, 50)];
    btn1.titleLabel.font = [UIFont systemFontOfSize:10.f];
    [btn1 setTitle:@"授权授按一次添加1次" forState:UIControlStateNormal];
    btn1.backgroundColor = [UIColor greenColor];
    [btn1 addTarget:self action:@selector(btn1Click) forControlEvents:UIControlEventTouchUpInside];
    [self.view addSubview:btn1];
}
@end

btn是Model出通讯录的按钮，btn1是添加联系人的按钮

• 4、 btn按钮的响应，Model出本地通讯录

-(void)btnClick{
    NSLog(@"%s",__func__);
    //1、创建选择联系人界面
    //这个框架会自动获取授权
    CNContactPickerViewController *CnNav = [[CNContactPickerViewController alloc] init];
    //2、设置代理
    CnNav.delegate = self;
    //3、弹出选择联系人界面
    [self presentViewController:CnNav animated:YES completion:nil];
    //4、实现代理方法
    //5、在对应的代理方法中获取联系人信息
}

以上代码会在控制器加载完毕后model出一个手机的通讯录，可以选择联系人查看对应的属性，拨打电话。

• 5、CNContactPickerDelegate代理

//选中某个联系人后 得到contact内的一些属性，但是实现该代理会dismiss掉CNContactPickerViewController
- (void)contactPicker:(CNContactPickerViewController *)picker didSelectContact:(CNContact *)contact{
    NSLog(@"contact信息:%@",contact);
    NSString *Fullname = [CNContactFormatter stringFromContact:contact style:CNContactFormatterStyleFullName];
    NSLog(@"Fullname:%@",Fullname);
}

//选中某个联系人的某个属性 能看到属性 能得到具体属性
//contactProperty是以键值的形式存储用户信息的，当读取时，也可以根据相应的key取值。
- (void)contactPicker:(CNContactPickerViewController *)picker didSelectContactProperty:(CNContactProperty *)contactProperty {
    if ([contactProperty.key isEqualToString:@"phoneNumbers"]) {
        CNPhoneNumber *phonenumber = contactProperty.value;//将value转为CNPhoneNumber
        NSLog(@"phonenumber.stringValue:%@",phonenumber.stringValue);
    }else if ([contactProperty.key isEqualToString:@"postalAddresses"]){
        CNPostalAddress *address = contactProperty.value;
        NSLog(@"address.street:%@\naddress.state:%@",address.street,address.state);
    }else{
        NSLog(@"contactProperty.value:%@",contactProperty.value);
    }

    NSString *str = [NSString stringWithFormat:@"contactProperty.contact.familyName:%@  contactProperty.contact.givenName:%@",contactProperty.contact.familyName,contactProperty.contact.givenName];
    NSLog(@"str:%@",str);
}

////选中多个联系人
- (void)contactPicker:(CNContactPickerViewController *)picker didSelectContacts:(NSArray<CNContact *> *)contacts{
    NSLog(@"contactscontacts:%@",contacts);
}

//选中1个联系人的多个属性
- (void)contactPicker:(CNContactPickerViewController *)picker didSelectContactProperties:(NSArray<CNContactProperty *> *)contactProperties{
    NSLog(@"contactProperties:%@",contactProperties);
}

//点击右上角取消的时候触发
- (void)contactPickerDidCancel:(CNContactPickerViewController *)picker{
    NSLog(@"cancel");
}

• 6、btn1按钮的响应 ，创建联系人

//通过CNLabeledValue类下的字典labeledValueWithLabel:key value:@""创建新的列表
-(void)btn1Click{
    NSLog(@"%s",__func__);
    NSLog(@"新建联系人");
    CNMutableContact *contact = [[CNMutableContact alloc] init];
    contact.givenName = @"give名字";
    contact.familyName = @"伐木累名字";
    
    //添加联系人邮箱
    CNLabeledValue *homeEmail = [CNLabeledValue labeledValueWithLabel:CNLabelHome value:@"homeEmail@qq.com"];
    CNLabeledValue *workEmail = [CNLabeledValue labeledValueWithLabel:CNLabelWork value:@"workEmail@qq.com"];
    contact.emailAddresses = @[homeEmail,workEmail];
    
    //添加联系人电话
    contact.phoneNumbers = @[[CNLabeledValue labeledValueWithLabel:CNLabelPhoneNumberiPhone value:[CNPhoneNumber phoneNumberWithStringValue:@"133333333333"]]];
    
    //添加联系人地址
    CNMutablePostalAddress *homeAdress = [[CNMutablePostalAddress alloc] init];
    homeAdress.street = @"什么路";
    homeAdress.city = @"什么城市";
    homeAdress.state = @"什么区域 指国家";
    homeAdress.postalCode = @"邮箱";
    contact.postalAddresses = @[[CNLabeledValue labeledValueWithLabel:CNLabelHome value:homeAdress]];
    
    //添加联系人生日
    NSDateComponents *birth = [[NSDateComponents alloc] init];
    birth.day = 7;
    birth.month = 3;
    birth.year = 1994;
    contact.birthday = birth;
    
    //添加请求 要在info里设置contact允许
    CNSaveRequest *saveRequest = [[CNSaveRequest alloc] init];
    [saveRequest addContact:contact toContainerWithIdentifier:nil];
    
    //写入通讯录
    CNContactStore *store = [[CNContactStore alloc] init];
    [store executeSaveRequest:saveRequest error:nil];
 }