一、 ios 联系人ABPeoplePickerNavigationControllerDelegate方法，新添加下面两个联系人选中方法，适配iOS8需要实现
// Called after a person has been selected by the user. - (void)peoplePickerNavigationController:(ABPeoplePickerNavigationController*)peoplePicker didSelectPerson:(ABRecordRef)person NS_AVAILABLE_IOS(8_0); // Called after a property has been selected by the user. - (void)peoplePickerNavigationController:(ABPeoplePickerNavigationController*)peoplePicker didSelectPerson:(ABRecordRef)person property:(ABPropertyID)property identifier:(ABMultiValueIdentifier)identifier NS_AVAILABLE_IOS(8_0);
二、iOS8联系人系统导航栏不能自定义，使用下面方法
[[UINavigationBar appearanceWhenContainedIn:[ABPeoplePickerNavigationController class], nil] setBackgroundImage:[UIImage imageNamed:@"navbar.png"] forBarMetrics:UIBarMetricsDefault];
三、多次点击联系人选择崩溃
ABMultiValueRef values = ABRecordCopyValue(person, property);
if(values != NULL) //需要判断空值
{
CFRelease(values);
}
ios 8 联系人ABPeoplePickerNavigationController
原文：http://www.cnblogs.com/geweb/p/ABPeoplePickerNavigationController.html