#import "ViewController.h"    #import <AddressBookUI/AddressBookUI.h>      @interface ViewController ()<ABPeoplePickerNavigationControllerDelegate>    @property (weak, nonatomic) IBOutlet UILabel *nameLabel;      @end      @implementation ViewController      - (void)viewDidLoad {        [super viewDidLoad];        // Do any additional setup after loading the view, typically from a nib.    }      #pragma mark 点击获取指定练习人的 姓名/电话    - (IBAction)btnclick:(UIButton *)sender {        //1. 创建联系人选择导航控制器        ABPeoplePickerNavigationController *picker = [ABPeoplePickerNavigationController new];                //2. 设置代理 注意不要设置错了        picker.peoplePickerDelegate = self;                //3. 以模态视图弹出        [self presentViewController:picker animated:YES completion:nil];    }      #pragma mark 实现代理方法    /// 当选择了联系人的时候调用此方法    ///    /// @param person       选中的联系人    - (void)peoplePickerNavigationController:(ABPeoplePickerNavigationController *)peoplePicker didSelectPerson:(ABRecordRef)person    {        //获取联系人姓名        //NSString *firstName = CFBridgingRelease(ABRecordCopyValue(person, kABPersonFirstNameProperty));       // NSString *lastName = CFBridgingRelease(ABRecordCopyValue(person, kABPersonLastNameProperty));        //self.nameLabel.text = [lastName stringByAppendingString:firstName];                NSString *fullName = CFBridgingRelease(ABRecordCopyCompositeName(person));        self.nameLabel.text = fullName;                //获取联系人电话        ABMultiValueRef phones = ABRecordCopyValue(person, kABPersonPhoneProperty);                //遍历phones, 拿到每一个电话        CFIndex count = ABMultiValueGetCount(phones);                for (int i = 0; i < count; i++) {            // 电话label            NSString *label = CFBridgingRelease(ABMultiValueCopyLabelAtIndex(phones, i));            //  电话            NSString *value = CFBridgingRelease(ABMultiValueCopyValueAtIndex(phones, i));                        NSLog(@"label:%@, value: %@",label, value);        }                //释放CF对象.如果没有纪录电话，phone是nil，不能释放。        if (phones != nil) {             CFRelease(phones);        }            }      @end