iOS learning-14. Local Contacts

Apple has abolished some of the features of Addressbookui.framework in the IOS9 SDK (whether the library has been abolished, yet to be verified), and several system interfaces related to saving contacts are as follows:
Contact Selection: Addressbookui/abpeoplepickernavigationcontroller.h
Contact Details: addressbookui/abpersonviewcontroller.h
Unknown Contact: addressbookui/abunknownpersonviewcontroller.h
New Contact: Addressbookui/abnewpersonviewcontroller.h
Used in the new SDK
Contact Selection: Contactsui/cncontactpickerviewcontroller.h
Contact details, new contact, unknown Contact: Contactsui/cncontactviewcontroller.h (created using a different method, as described below)

In the following example, there are still problems

1.UINavgationController title, left and right item are the system comes with, contact details, when the Navgationitem return button No click event, how should be customized?

2. Contact person logo Photo black screen (real machine test has been acquired), to be resolved

#import "ViewController.h"#import<ContactsUI/CNContactPickerViewController.h>#import<ContactsUI/CNContactViewController.h>@interfaceViewcontroller () <CNContactViewControllerDelegate,CNContactPickerDelegate>@end@implementationViewcontroller- (void) viewdidload {[Super viewdidload];}-(Ibaction) Click: (IDsender {[self set1];}//Save new contacts-(void)Set{    //1. Create contact object, must be variableCnmutablecontact *contact =[[Cnmutablecontact alloc]init]; //2. Assigning a value to the contact[self setvalue4contact:contact existcontect:no]; //3. Create a new friend pageCncontactviewcontroller *controller =[Cncontactviewcontroller viewcontrollerfornewcontact:contact]; Controller.Delegate=Self ; Uinavigationcontroller*nav =[[Uinavigationcontroller Alloc]initwithrootviewcontroller:controller]; [Self Presentviewcontroller:nav animated:yes completion:nil];}//save an existing contact-(void) set1{//Jump to the Contact selection page, note that there is no use of UinavgationcontrollerCncontactpickerviewcontroller *picker =[[Cncontactpickerviewcontroller alloc]init]; Picker.Delegate=Self ; [Self Presentviewcontroller:picker animated:yes completion:nil];}//implement the agent of the point selection, other proxy methods to implement according to their own needs-(void) Contactpicker: (Cncontactpickerviewcontroller *) Picker didselectcontact: (Cncontact *) contact{[picker dismissviewcontrolleranimated:yes Completion:^{    //copy a writable contact object, do not try Alloc class, mutablecopy alone this oneCnmutablecontact *c =[Contact Mutablecopy]; //assign a value to the contact[self setvalue4contact:c existcontect:yes]; //Jump to new contact pageCncontactviewcontroller *controller =[Cncontactviewcontroller Viewcontrollerfornewcontact:c]; Controller.Delegate=Self ; Uinavigationcontroller*nav =[[Uinavigationcontroller Alloc]initwithrootviewcontroller:controller];    [Self Presentviewcontroller:nav animated:yes completion:nil]; }];}//set the Contact object to save- (void) Setvalue4contact: (Cnmutablecontact *) Contact Existcontect: (BOOL) exist{if(!exist) {        //Name and AvatarContact.nickname =@"Oriccheng"; /*UIImage *logo = [UIImage imagenamed:@ ""];         NSData *dataref = uiimagepngrepresentation (logo);                  Contact.imagedata = Dataref; */} cnlabeledvalue*phonenumber = [Cnlabeledvalue labeledvaluewithlabel:cnlabelphonenumbermobile value:[cnphonenumber Phonenumberwithstringvalue:@"18888888888"]]; if(!exist) {Contact.phonenumbers=@[phonenumber]; }Else{        //Existing Contact information        if([Contact.phonenumbers Count] >0) {Nsmutablearray*phonenumbers =[[Nsmutablearray alloc]initwitharray:contact.phonenumbers];            [Phonenumbers Addobject:phonenumber]; Contact.phonenumbers=phonenumbers; }Else{contact.phonenumbers=@[phonenumber]; }    }    //URL: Cnlabeledvalue *url = [Cnlabeledvalue labeledvaluewithlabel:@ "" value:@ "]; //e-mail: Cnlabeledvalue *mail = [Cnlabeledvalue labeledvaluewithlabel:cnlabelwork value:self.poiData4Save.mail]; //specifically, an address, postaladdress corresponds to the addressCnmutablepostaladdress *address =[[Cnmutablepostaladdress alloc]init]; Address.state=@"Jiangsu Province"; Address.city=@"Nanjing"; Address.postalcode=@"20000"; Address.street=@"No. 18th, Xinjiekou Wang eight street"; //generated above up to the Cnlabeledvalue, where you can set type Cnlabelwork and so onCnlabeledvalue *addresslabel =[Cnlabeledvalue labeledvaluewithlabel:cnlabelwork value:address]; if(!exist) {contact.postaladdresses=@[addresslabel]; }Else{        if(Contact.postalAddresses.count >0) {Nsmutablearray*addresses =[[Nsmutablearray alloc]initwitharray:contact.postaladdresses];            [Addresses Addobject:addresslabel]; Contact.postaladdresses=addresses; }Else{contact.postaladdresses=@[addresslabel]; }    }    }

iOS learning-14. Local Contacts