尝试使用iOS中的表视图，收到错误

Question

我在我的iOS应用程序标签表视图，但我不能运行应用程序，我在运行时出现此错误：

3/23/12 10:15:23.119 PM CodeCompanion: *** Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: '-[UITableViewController loadView] loaded the "2-view-16" nib but didn't get a UITableView.' 
*** First throw call stack: 
(0x13bd052 0x154ed0a 0x1365a78 0x13659e9 0x2436ae 0xda5cb 0xf5b89 0xf59bd 0xf3f8a 0xf3e2f 0xf1ffb 0xf285a 0xdbfbf 0xdc21b 0xdd0f1 0x4bfec 0x51572 0x4b72b 0x3abc2 0x3ace2 0x3aea8 0x41d9a 0x12be6 0x138a6 0x22743 0x231f8 0x16aa9 0x12a7fa9 0x13911c5 0x12f6022 0x12f490a 0x12f3db4 0x12f3ccb 0x132a7 0x14a9b 0x2888 0x27e5) 

我的视图控制器头文件是如下：

#import <UIKit/UIKit.h> 

@class LanguageTableViewCell; 

@interface LanguagesViewController : UITableViewController { 

    NSArray *languages; 

} 

@property (nonatomic, retain) NSArray *languages; 

@end 

和我的执行文件是：

#import "LanguagesViewController.h" 
#import "LanguageTableViewCell.h" 

@implementation LanguagesViewController 

@synthesize languages; 

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { 
    NSLog(@"getting cell for row at index path: %i", [indexPath row]); 
    LanguageTableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:@"languageBase"]; 
    if (cell == nil) { 
     cell = [[LanguageTableViewCell alloc] 
       initWithStyle:UITableViewCellStyleDefault 
       reuseIdentifier:@"languageBase"]; 
    } 
    [cell setName:[languages objectAtIndex:[indexPath row]]]; 
    return cell; 
} 

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section { 
    NSLog(@"rows in section: %i is: %i", section, [languages count]); 
    return [languages count]; 
} 

- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView 
{ 
    // Return the number of sections. 
    NSLog(@"getting number of sections (1)"); 
    return 1; 
} 

- (void)didReceiveMemoryWarning 
{ 
    [super didReceiveMemoryWarning]; 
    // Release any cached data, images, etc that aren't in use. 
} 

#pragma mark - View lifecycle 

- (void)viewDidLoad 
{ 
    [super viewDidLoad]; 
    // Do any additional setup after loading the view, typically from a nib. 
    NSLog(@"view loaded, setting array"); 
    languages = [NSArray arrayWithObjects:@"Java", nil]; 
} 

- (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 
    if ([[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPhone) { 
     return (interfaceOrientation != UIInterfaceOrientationPortraitUpsideDown); 
    } else { 
     return YES; 
    } 
} 

@end 

我是很新，Xcode和objective- c，所以请提及任何可能出错的地方。我已经将表视图的ViewController设置为我的上面的类，并且我没有在xcode中收到任何错误或警告。表视图是使用原型单元格的那些动态类型之一。如果我需要发布单元格的类，我会的。

Answer 1

通过看看你的错误信息，你正在使用一个nib文件“2-view-16”来布局你的视图，但它不包含UITableView（或者它没有连接）。

LanguagesViewController继承自UITableViewController，它正在寻找一个UITableView来控制哪个不存在。

如果您使用笔尖来设置视图，则需要将UITableView添加到笔尖并将其设置为您的LanguagesViewController的tableView。