1.Contacts的四种用户访问状态
代码：
CNAuthorizationStatus status =
[CNContactStore authorizationStatusForEntityType:CNEntityTypeContacts];
switch (status) {
case CNAuthorizationStatusNotDetermined:
NSLog(@"首次访问这个软件没有获得用户许可");
break;
case CNAuthorizationStatusRestricted:
NSLog(@"被家长限制了");
break;
case CNAuthorizationStatusDenied:
NSLog(@"用户拒绝软件访问通讯录");
break;
case CNAuthorizationStatusAuthorized:
NSLog(@"用户允许软件访问通讯录");
break;
default:
break;
}
图1.1
2.申请授权-访问用户的通讯录
代码：
- (void)checkAddressBookAuthorization:(void (^)(bool isAuthorized))block{
CNContactStore *addressBook = [[CNContactStore alloc]init];
CNAuthorizationStatus authStatus = [CNContactStore authorizationStatusForEntityType:CNEntityTypeContacts];;
if (authStatus != CNAuthorizationStatusAuthorized){
[addressBook requestAccessForEntityType:CNEntityTypeContacts completionHandler:^(BOOL granted, NSError * _Nullable error) {
dispatch_async(dispatch_get_main_queue(), ^{
if (error){
NSLog(@"Error: %@",error);
}else if (!granted){
block(NO);
}else{
block(YES);
}
});
}];
}else{
block(YES);
}
}
图2.1
3.授权成功以后遍历通讯录
[self checkAddressBookAuthorization:^(bool isAuthorized) {
if (isAuthorized) {
// 1.创建通信录对象
CNContactStore *contactStore = [[CNContactStore alloc] init];
// 2.创建获取通信录的请求对象
// 2.1.拿到所有打算获取的属性对应的key
NSArray *keys = @[CNContactGivenNameKey, CNContactFamilyNameKey, CNContactPhoneNumbersKey];
// 2.2.创建CNContactFetchRequest对象
CNContactFetchRequest *request = [[CNContactFetchRequest alloc] initWithKeysToFetch:keys];
// 3.遍历所有的联系人
[contactStore enumerateContactsWithFetchRequest:request error:nil usingBlock:^(CNContact * _Nonnull contact, BOOL * _Nonnull stop) {
// 1.获取联系人的姓名
NSString *lastname = contact.familyName;
NSString *firstname = contact.givenName;
NSLog(@"%@ %@", lastname, firstname);
// 2.获取联系人的电话号码
NSArray *phoneNums = contact.phoneNumbers;
for (CNLabeledValue *labeledValue in phoneNums) {
// 2.1.获取电话号码的KEY
NSString *phoneLabel = labeledValue.label;
// 2.2.获取电话号码
CNPhoneNumber *phoneNumer = labeledValue.value;
NSString *phoneValue = phoneNumer.stringValue;
NSLog(@"%@ %@", phoneLabel, phoneValue);
}
}];
}
}];
图3.1
4.ContactsUI的简单使用
图4.1创建实例跳转到联系人列表
图4.2引入对象，遵循协议
图4.3实现代理方法
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