使用故事板iOS5传递对象

Question

我想将对象传递给我在故事板中创建的静态分组表格视图。

下面是我用我的第一个观点推动第二视图代码：

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath 
    { 
     NSLog(@"Row Selected"); 
     CustomerDetailTableViewController *detailView = [[self storyboard] instantiateViewControllerWithIdentifier:@"DetailsView"]; 
     detailView.customer = [self.fetchedResultsController objectAtIndexPath:[self.tableView indexPathForSelectedRow]]; 
     NSLog(@"%@",detailView.customer.firstName); 
     [self.navigationController pushViewController:detailView animated:YES]; 

    } 

的的NSLog与firstName是正确的，但在细节视图被推细胞中的DetailView为空。我可能只是失去了一些愚蠢的东西，但一个新的眼睛将不胜感激。

下面是的DetailView控制器代码：

CustomerDetailTableViewController.h

@class Customer; 

#import <UIKit/UIKit.h> 

@interface CustomerDetailTableViewController : UITableViewController{ 
    Customer *customer; 

    UILabel *fullName; 
    UILabel *address; 
    UILabel *homePhone; 
    UILabel *cellPhone; 
    UILabel *email; 

} 

@property (nonatomic, strong) IBOutlet UILabel *fullName; 
@property (nonatomic, strong) IBOutlet UILabel *address; 
@property (nonatomic, strong) IBOutlet UILabel *homePhone; 
@property (nonatomic, strong) IBOutlet UILabel *cellPhone; 
@property (nonatomic, strong) IBOutlet UILabel *email; 
@property (nonatomic, strong) Customer *customer; 
@end 

CustomerDetailTableViewController.m

#import "CustomerDetailTableViewController.h" 
#import "Customer.h" 

@implementation CustomerDetailTableViewController 
@synthesize fullName, address, homePhone, cellPhone, email, customer; 

- (id)initWithStyle:(UITableViewStyle)style 
{ 

    self = [super initWithStyle:style]; 
    if (self) { 
     // Custom initialization 
    } 
    return self; 
} 

- (void)didReceiveMemoryWarning 
{ 
    // Releases the view if it doesn't have a superview. 
    [super didReceiveMemoryWarning]; 

    // Release any cached data, images, etc that aren't in use. 
} 

#pragma mark - View lifecycle 

- (void)viewDidLoad 
{ 

    fullName = [NSString stringWithFormat:@"%@ %@", customer.firstName, customer.lastName]; 
    address = [NSString stringWithFormat: @"%@/n%@, %@ %@", customer.address, customer.city, customer.state, customer.zipCode]; 

    [super viewDidLoad]; 

    // Uncomment the following line to preserve selection between presentations. 
    // self.clearsSelectionOnViewWillAppear = NO; 

    // Uncomment the following line to display an Edit button in the navigation bar for this view controller. 
    // self.navigationItem.rightBarButtonItem = self.editButtonItem; 
} 

- (void)viewDidUnload 
{ 
    [super viewDidUnload]; 
    // Release any retained subviews of the main view. 
    // e.g. self.myOutlet = nil; 
} 

- (void)viewWillAppear:(BOOL)animated 
{ 
    [super viewWillAppear:animated]; 
} 

- (void)viewDidAppear:(BOOL)animated 
{ 
    [super viewDidAppear:animated]; 
} 

- (void)viewWillDisappear:(BOOL)animated 
{ 
    [super viewWillDisappear:animated]; 
} 

- (void)viewDidDisappear:(BOOL)animated 
{ 
    [super viewDidDisappear:animated]; 
} 

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation 
{ 
    // Return YES for supported orientations 
    return (interfaceOrientation == UIInterfaceOrientationPortrait); 
} 
@end 

Answer 1

所以，你已经创建了两个视图（第一和TableView中CustomerDetailTableViewController）与故事板？ 在这种情况下，您必须点击两个视图之间的连接线进入故事板，并将“标识符”字段设置为“故事板塞格”部分，类似“setCustomer”。下面是截图： 这一点截图：

之后，你可以发表评论的方法的tableView：didSelectRowAtIndexPath方法：第一个的TableView，并用这种方法代替：

- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender { 

    if ([[segue identifier] isEqualToString:@"setCustomer"]) { 
     CustomerDetailTableViewController *customerDetailVC = (CustomerDetailTableViewController *)[segue destinationViewController]; 
     customerDetailVC.customer = [self.fetchedResultsController objectAtIndexPath:[self.tableView indexPathForSelectedRow]]; 
    } 
} 

记住包括

#include "CustomerDetailTableViewController.h" 

位于实现文件的顶部。

我希望这个帮助！