如何使用iPhone联系方式检索电子邮件？

Question

我对斯威夫特很陌生。我使用APAdressBook框架检索iPhone .Every中的联系人，工作正常到IOS8.4，但是在模拟器和iPhone设备的IOS 9中，它没有访问联系人，甚至没有显示警告信息，比如您想访问联系人吗?如果是，请给我有价值的答案。

Answer 1

苹果公司( Apple .)从iOS 9中引入了iOS，因此，更好地使用这个框架来检索联系人。

以下是从联系人应用程序中获取电子邮件或整个联系人的方法。

将Contacts.framework添加到项目中。

创建或添加类型为header的新文件，并给出名称，如yourProjectName-Bridging-Header.h，将#import <Contacts/Contacts.h>语句写入文件，并从构建设置中保存和设置该文件的适当路径。

现在创建方法

func getAllContacts() {

    let status = CNContactStore.authorizationStatusForEntityType(CNEntityType.Contacts) as CNAuthorizationStatus

    if status == CNAuthorizationStatus.Denied {

        let alert = UIAlertController(title:nil, message:"This app previously was refused permissions to contacts; Please go to settings and grant permission to this app so it can use contacts", preferredStyle:UIAlertControllerStyle.Alert)
        alert.addAction(UIAlertAction(title:"OK", style:UIAlertActionStyle.Default, handler:nil))
        self.presentViewController(alert, animated:true, completion:nil)
        return
    }

    let store = CNContactStore()
    store.requestAccessForEntityType(CNEntityType.Contacts) { (granted:Bool, error:NSError?) -> Void in

        if !granted {

            dispatch_async(dispatch_get_main_queue(), { () -> Void in

                // user didn't grant access;
                // so, again, tell user here why app needs permissions in order  to do it's job;
                // this is dispatched to the main queue because this request could be running on background thread
            })
            return
        }

        let arrContacts = NSMutableArray() // Declare this array globally, so you can access it in whole class.

        let request = CNContactFetchRequest(keysToFetch:[CNContactIdentifierKey, CNContactEmailAddressesKey, CNContactBirthdayKey, CNContactImageDataKey, CNContactPhoneNumbersKey, CNContactFormatter.descriptorForRequiredKeysForStyle(CNContactFormatterStyle.FullName)])

        do {

            try store.enumerateContactsWithFetchRequest(request, usingBlock: { (contact:CNContact, stop:UnsafeMutablePointer<ObjCBool>) -> Void in

                let arrEmail = contact.emailAddresses as NSArray

                if arrEmail.count > 0 {

                    let dict = NSMutableDictionary()
                    dict.setValue((contact.givenName+" "+contact.familyName), forKey: "name")
                    let emails = NSMutableArray()

                    for index in 0...arrEmail.count {

                        let email:CNLabeledValue = arrEmail.objectAtIndex(index) as! CNLabeledValue
                        emails .addObject(email.value as! String)
                    }
                    dict.setValue(emails, forKey: "email")
                    arrContacts.addObject(dict) // Either retrieve only those contact who have email and store only name and email
                }
                arrContacts.addObject(contact) // either store all contact with all detail and simplifies later on
            })
        } catch {

            return;
        }
    }
}

在需要self.getAllContacts()的地方调用此方法

当你想要找回

for var index = 0; index < self.arrContacts.count; ++index {

            let dict = self.arrContacts[index] as! NSDictionary
            print(dict.valueForKey("name"))
            print(dict.valueForKey("email"))
        }