連絡先リストから人を選択し、名前、姓、電子メールを取得するアプリがあります。次に、最初の名前を nsmutablearray に保存し、それを uitableview セルに入れます。シミュレーターで連絡先を選択すると、問題が発生します。
コード:
.h:
#import <UIKit/UIKit.h>
#import <AddressBookUI/AddressBookUI.h>
@interface FirstViewController : UIViewController < ABPeoplePickerNavigationControllerDelegate, UITableViewDelegate, UITableViewDataSource>
- (IBAction)showPicker:(id)sender;
@property (weak, nonatomic) IBOutlet NSString *firstName;
@property (weak, nonatomic) IBOutlet NSString *email;
@property (weak, nonatomic) IBOutlet NSString *lastName;
@property (weak, nonatomic) IBOutlet UITableView *myTableView;
@property (strong, nonatomic) NSMutableArray *contacts;
@end
.m:
#import "FirstViewController.h"
@interface FirstViewController ()
@end
@implementation FirstViewController
@synthesize firstName;
@synthesize email;
@synthesize lastName;
@synthesize contacts;
@synthesize myTableView;
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
contacts = [[NSMutableArray alloc]initWithObjects:nil];
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
#pragma mark - UITableView Datasource
-(NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
return 1;
}
-(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
return contacts.count;
}
-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *cellIdentifier = @"Cell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:cellIdentifier];
if (cell == nil) {
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:cellIdentifier];
}
cell.textLabel.text = [contacts objectAtIndex:indexPath.row];
return cell;
}
- (IBAction)showPicker:(id)sender {
ABPeoplePickerNavigationController *picker =
[[ABPeoplePickerNavigationController alloc] init];
picker.peoplePickerDelegate = self;
[self presentModalViewController:picker animated:YES];
}
- (void)peoplePickerNavigationControllerDidCancel:
(ABPeoplePickerNavigationController *)peoplePicker
{
[self dismissModalViewControllerAnimated:YES];
}
- (BOOL)peoplePickerNavigationController:
(ABPeoplePickerNavigationController *)peoplePicker
shouldContinueAfterSelectingPerson:(ABRecordRef)person {
[self displayPerson:person];
[self dismissModalViewControllerAnimated:YES];
return NO;
}
- (BOOL)peoplePickerNavigationController:
(ABPeoplePickerNavigationController *)peoplePicker
shouldContinueAfterSelectingPerson:(ABRecordRef)person
property:(ABPropertyID)property
identifier:(ABMultiValueIdentifier)identifier
{
return NO;
}
- (void)displayPerson:(ABRecordRef)person
{
NSString* name = (__bridge_transfer NSString*)ABRecordCopyValue(person,
kABPersonFirstNameProperty);
self.firstName = name;
NSString* last = (__bridge_transfer NSString*)ABRecordCopyValue(person,
kABPersonLastNameProperty);
self.lastName = last;
ABMultiValueRef emails = ABRecordCopyValue(person, kABPersonEmailProperty);
NSString *emailId = (__bridge NSString *)ABMultiValueCopyValueAtIndex(emails, 0);//0 for "Home Email" and 1 for "Work Email".
self.email = emailId;
if (!(contacts))
{
contacts = [[NSMutableArray alloc]init];
}
[contacts insertObject:firstName atIndex:0];
NSIndexPath * indexPath = [NSIndexPath indexPathForRow:0 inSection:0];
[self.myTableView insertRowsAtIndexPaths:@[indexPath] withRowAnimation:UITableViewRowAnimationAutomatic];
}
@end