获取设备通讯录信息

直接上代码：

#import "ViewController.h"

#import <Contacts/Contacts.h>

#import <ContactsUI/ContactsUI.h>

@interface ViewController ()<CNContactPickerDelegate>

@property (nonatomic, strong) UIButton *btn;

@property (nonatomic, strong) UILabel *label;

@property (nonatomic, strong) UILabel *labelNum;


@end

@implementation ViewController


- (void)viewDidLoad {

    [super viewDidLoad];

    _btn = [UIButton buttonWithType:UIButtonTypeSystem];

    _btn.frame = CGRectMake(10, 20, 50, 30);

    [_btn setTitle:@"按钮" forState:0];

    [_btn addTarget:self action:@selector(btnAction) forControlEvents:UIControlEventTouchUpInside];

    [self.view addSubview:_btn];

    _label = [[UILabel alloc] initWithFrame:CGRectMake(10, 60, 50, 30)];

    [self.view addSubview:_label];

    _labelNum = [[UILabel alloc] initWithFrame:CGRectMake(10, 120, 50, 30)];

    [self.view addSubview:_labelNum];

}


- (void)btnAction {


    CNContactPickerViewController *contactPickerViewController = [[CNContactPickerViewController alloc] init];

    contactPickerViewController.delegate = self;


    [self presentViewController:contactPickerViewController animated:YES completion:nil];

}

// 如果实现该方法当选中联系人时就不会再出现联系人详情界面， 如果需要看到联系人详情界面只能不实现这个方法

- (void)contactPicker:(CNContactPickerViewController *)picker didSelectContact:(CNContact *)contact {

    NSLog(@"选中某一个联系人时调用---------------------------------");

    [self printContactInfo:contact];

}

// 同时选中多个联系人
- (void)contactPicker:(CNContactPickerViewController *)picker didSelectContacts:(NSArray<CNContact *> *)contacts {

    for (CNContact *contact in contacts) {
   NSLog(@"================================================");

        [self printContactInfo:contact];

    }

}

- (void)printContactInfo:(CNContact *)contact {

    NSString *givenName = contact.givenName;

    NSString *familyName = contact.familyName;

    NSLog(@"givenName=%@, familyName=%@", givenName, familyName);

    NSArray * phoneNumbers = contact.phoneNumbers;

    _label.text = familyName;


    for (CNLabeledValue<CNPhoneNumber*>*phone in phoneNumbers) {

        NSString *label = phone.label;

        CNPhoneNumber *phonNumber = (CNPhoneNumber *)phone.value;

        NSLog(@"label=%@, value=%@", label, phonNumber.stringValue);

        _labelNum.text = phonNumber.stringValue;

    }

}


// 注意:如果实现该方法，上面那个方法就不能实现了，这两个方法只能实现一个

// - (void)contactPicker:(CNContactPickerViewController *)picker didSelectContactProperty:(CNContactProperty *)contactProperty {

//  NSLog(@"选中某个联系人的某个属性时调用");

// }

- (void)touchesBegan:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event {

    CNAuthorizationStatus authorizationStatus = [CNContactStore authorizationStatusForEntityType:CNEntityTypeContacts];

    if (authorizationStatus == CNAuthorizationStatusAuthorized) {

        NSLog(@"没有授权...");

}


// 获取指定的字段,并不是要获取所有字段，需要指定具体的字段

    NSArray *keysToFetch = @[CNContactGivenNameKey, CNContactFamilyNameKey, CNContactPhoneNumbersKey];

    CNContactFetchRequest *fetchRequest = [[CNContactFetchRequest alloc] initWithKeysToFetch:keysToFetch];

    CNContactStore *contactStore = [[CNContactStore alloc] init];

    [contactStore enumerateContactsWithFetchRequest:fetchRequest error:nil usingBlock:^(CNContact * _Nonnull contact, BOOL * _Nonnull stop) {

        NSLog(@"-------------------------------------------------------");

        NSString *givenName = contact.givenName;

        NSString *familyName = contact.familyName;

        NSLog(@"givenName=%@, familyName=%@", givenName, familyName);

        NSArray *phoneNumbers = contact.phoneNumbers;

        for (CNLabeledValue *labelValue in phoneNumbers) {
        

            NSString *label = labelValue.label;

            CNPhoneNumber *phoneNumber = labelValue.value;

            NSLog(@"label=%@, phone=%@", label, phoneNumber.stringValue);

        }

        // *stop = YES; // 停止循环，相当于break；

    }];

}