地址簿peoplePickerNavigationController

Question

我无法在@synthesize mCallnumber中声明Callmethod。如果我声明它是抛出错误，当我尝试在标题中声明它时，它也会抛出错误并且应用程序被终止。作为我的帮助我对这个Objective-C很新。

 -(IBAction)gotohomepage:(id)sender
{
[self dismissViewControllerAnimated:YES completion:nil];
}

- (BOOL)peoplePickerNavigationController:(ABPeoplePickerNavigationController *)peoplePicker shouldContinueAfterSelectingPerson:(ABRecordRef)person

{
mContactNumber.text=@"";
mEmailId.text=@"";
mFirstName.text=@"";
mLastName.text=@"";

mFirstName.text=(NSString *)ABRecordCopyValue(person, kABPersonFirstNameProperty);
mLastName.text=(NSString *)ABRecordCopyValue(person, kABPersonLastNameProperty);




ABMultiValueRef phoneIdIndex=ABRecordCopyValue(person,kABPersonPhoneProperty);
CFIndex thePhoneIndex=ABMultiValueGetCount(phoneIdIndex);
if (thePhoneIndex!=0) {
    mPhoneNumber=(NSString *)ABMultiValueCopyValueAtIndex(phoneIdIndex, 0);
    mContactNumber.text=mPhoneNumber;
}


ABMultiValueRef emailIdIndex=ABRecordCopyValue(person, kABPersonEmailProperty);
CFIndex theEmailIndex=ABMultiValueGetCount(emailIdIndex);
if (theEmailIndex!=0) {
    mEmailIdIndex=(NSString *)ABMultiValueCopyValueAtIndex(emailIdIndex, 0);
    mEmailId.text=mEmailIdIndex;
}    
[self dismissModalViewControllerAnimated:YES];
mCall.hidden=NO;
mEmail.hidden=NO;
mSMS.hidden=NO;
return NO;
}

 - (void)peoplePickerNavigationControllerDidCancel:(ABPeoplePickerNavigationController *)peoplePicker
{
[self dismissModalViewControllerAnimated:YES];
}

  - (BOOL)peoplePickerNavigationController:(ABPeoplePickerNavigationController   *)peoplePicker shouldContinueAfterSelectingPerson:(ABRecordRef)person property:(ABPropertyID)property identifier:(ABMultiValueIdentifier)identifier
 {
 return YES;
 }


-(IBAction)callmethod
 {

contactsViewController *actionHandleView=[[contactsViewController alloc]initWithNibName:@"contactsViewController" bundle:nil];
actionHandleView.mCallNumber=mPhoneNumber;
[self.navigationController pushViewController:actionHandleView animated:YES];
[actionHandleView release];
 }

Answer 1

您很可能只需要添加一行说明：

@property (retain) NSString * mCallNumber;

到您的“contactsViewController”。h文件。

B.T.W。，Objective C最佳实践是将类名的第一个字符大写，并将所有变量的第一个字符保持为小写。因此，而不是“contactsViewController”，将其称为“ContactsViewController”。

Answer 2

试试这个，看它是否有效。

@property(nonatomic,retain) NSString *mCallNumber;