我正在尝试从表格视图切换到详细视图。当我单击单元格时，它会崩溃。我已经使用中断来尝试找到它在代码中崩溃的位置，但我找不到特定的行。当从表视图到详细视图执行 segue 时，它会崩溃。我想将一些变量传递给详细视图，但我首先需要让它切换到详细视图。我正在使用故事板仅供参考。任何帮助，将不胜感激。
更新：崩溃日志如下
arg c = (int) 1
arg v = (char **) 0x2fd63cdc
这是崩溃所在的行
return UIApplicationMain(argc, argv, nil, NSStringFromClass([AppDelegate class]));
更新 2
当我单步执行代码时，它崩溃之前的最后一段代码是为 segue 函数做准备。在其中的最后一行代码之后，它崩溃并转到上面的行。
更新 3
我意识到控制台被隐藏了，所以这是控制台中显示的错误。我的两个为 segue 做准备的 nslog 都被调用了。
Terminating app due to uncaught exception 'NSUnknownKeyException', reason: '[<DetailViewController 0x1e098bd0> setValue:forUndefinedKey:]: this class is not key value coding-compliant for the key name.'
*** First throw call stack:
(0x3a1e63e7 0x39072963 0x3a1e60d5 0x3a418fe9 0x3a414d53 0x3a16c8a5 0x39665d7d 0x396655ff 0x3955e039 0x394e8421 0x3953d1b7 0x3953d0fd 0x3953cfe1 0x3953cf0d 0x3953c659 0x3953c541 0x3952ab33 0x3952a7d3 0x3958b2ad 0x3960dca1 0x3a4b9e67 0x3a1bb857 0x3a1bb503 0x3a1ba177 0x3a12d23d 0x3a12d0c9 0x3746633b 0x3951d291 0x69a9 0x3a91eb20)
libc++abi.dylib: terminate called throwing an exception
根视图控制器.m
#import "RootViewController.h"
#import "DetailViewController.h"
@implementation RootViewController
- (id)initWithStyle:(UITableViewStyle)style
{
self = [super initWithStyle:style];
if (self) {
// Custom initialization
}
return self;
}
- (void)viewDidLoad {
[super viewDidLoad];
//Initialize the array.
listOfItems = [[NSMutableArray alloc] init];
//Add items
[listOfItems addObject:@"Jane"];
[listOfItems addObject:@"Johnny"];
[listOfItems addObject:@"Deanne"];
[listOfItems addObject:@"John"];
[listOfItems addObject:@"Susan"];
//Set the title
self.navigationItem.title = @"Countries";
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
#pragma mark - Table view data source
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
// Return the number of sections.
return 1;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
return [listOfItems count];
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
static NSString *CellIdentifier = @"MyCell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier];
}
// Set up the cell...
NSString *cellValue = [listOfItems objectAtIndex:indexPath.row];
cell.textLabel.text = cellValue;
return cell;
}
-(void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{
DetailViewController *DVC = [[DetailViewController alloc]init];
DVC = [segue destinationViewController];
NSIndexPath *path = [self.tableView indexPathForSelectedRow];
NSString *name = [listOfItems objectAtIndex:path.row];
DVC.name1.text = name;
}
RootViewController.h
#import <UIKit/UIKit.h>
@interface RootViewController : UITableViewController <UITableViewDataSource,UITableViewDelegate> {
NSMutableArray *listOfItems;
IBOutlet NSMutableArray *detailListOfItems;
}
@end
细节视图控制器.m
#import "DetailViewController.h"
@implementation DetailViewController
@synthesize selectedCountry;
@synthesize name1;
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
// Custom initialization
}
return self;
}
- (void)viewDidLoad
{
[super viewDidLoad];
//Set the title of the navigation bar
//self.navigationItem.title = name1.text;
}
DetailViewController.h
#import <UIKit/UIKit.h>
@interface DetailViewController : UIViewController
@property (nonatomic,strong) IBOutlet UILabel *name1;
@property (nonatomic, retain) NSString *selectedCountry;
@end
