使用委託給ABPeoplePickerNavigationController

Question

我需要管理UITabBarController中的ABPeoplePickerNavigationController（我不想以模態方式顯示ABPeoplePickerNavigationController，因爲我想保持tabbar可見）。然後，我用這個代碼來設置的UITabBarController：

AppDelegate.m文件：

#import "PickerDelegate.h" 

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions 
{ 
    ABPeoplePickerNavigationController *contacts = [[ABPeoplePickerNavigationController alloc] init]; 
    PickerDelegate *pickerDel = [[PickerDelegate alloc] init]; 
    contacts.delegate = pickerDel; 

    NSArray *aViewControllers = [NSArray arrayWithObjects:xvc, contacts, yvc, zvc, nil]; 

    UITabBarController *tabBarController = [[UITabBarController alloc] init]; 
    [tabBarController setViewControllers:aViewControllers]; 
    [xvc release]; 
    [contacts release]; 
    [yvc release]; 
    [zvc release]; 

    [window setRootViewController:tabBarController]; 
    [tabBarController release]; 
    [self.window makeKeyAndVisible]; 

    return YES; 
} 

PickerDelegate.h文件

#import <Foundation/Foundation.h> 
#import <AddressBook/AddressBook.h> 
#import <AddressBookUI/AddressBookUI.h> 

@interface PickerDelegate : NSObject <UINavigationControllerDelegate, ABPeoplePickerNavigationControllerDelegate> 

@property (nonatomic, assign) PickerDelegate *delegate; 

-(void)peoplePickerNavigationControllerDidCancel:(ABPeoplePickerNavigationController *)peoplePicker; 
-(BOOL)peoplePickerNavigationController:(ABPeoplePickerNavigationController *)peoplePicker shouldContinueAfterSelectingPerson:(ABRecordRef)person; 
-(BOOL)peoplePickerNavigationController:(ABPeoplePickerNavigationController *)peoplePicker shouldContinueAfterSelectingPerson:(ABRecordRef)person property:(ABPropertyID)property identifier:(ABMultiValueIdentifier)identifier; 

@end 

，最後是PickerDelegate.m文件：

#import "PickerDelegate.h" 

@implementation PickerDelegate 

@synthesize delegate = _delegate; 

#pragma mark ABPeoplePickerNavigationControllerDelegate methods 

// Displays the information of a selected person 
- (BOOL)peoplePickerNavigationController:(ABPeoplePickerNavigationController *)peoplePicker shouldContinueAfterSelectingPerson:(ABRecordRef)person 
{ 
    NSLog(@"shouldContinueAfterSelectingPerson"); 

    //... 
    return YES; 
} 

- (BOOL)peoplePickerNavigationController:(ABPeoplePickerNavigationController *)peoplePicker shouldContinueAfterSelectingPerson:(ABRecordRef)person property:(ABPropertyID)property identifier:(ABMultiValueIdentifier)identifier 
{ 
    NSLog(@"shouldContinueAfterSelectingPerson"); 

    //... 
    return NO; 
} 

-(void)peoplePickerNavigationControllerDidCancel:(ABPeoplePickerNavigationController *)peoplePicker 
{ 
    NSLog(@"peoplePickerNavigationControllerDidCancel"); 

    //... 
} 
@end 

但它不起作用，我的方法不叫。什麼不見​​了？

Answer 1

的ABPeoplePickerNavigationController的委託財產peoplePickerDelegate，而不是委託

這樣做是爲了它的工作..

contacts.peoplePickerDelegate = pickerDel;