的iOS - 表視圖錯誤

Question

我已經有點問題，我的第一個表視圖，我用我從網上取一個例子，但是當我運行的代碼，它崩潰說：

2011-09-15 15:58:48.873 fptNew[1710:207] -[UIViewController tableView:numberOfRowsInSection:]: unrecognized selector sent to instance 0x4b3d120 
2011-09-15 15:58:48.876 fptNew[1710:207] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[UIViewController tableView:numberOfRowsInSection:]: unrecognized selector sent to instance 0x4b3d120' 

這裏是代碼：

// familySelect.m 
// fptNew 
// 
// Created by Marco on 14/09/11. 
// Copyright 2011 __MyCompanyName__. All rights reserved. 

#import "familySelect.h" 

@implementation familySelect 

@synthesize colorNames; 

// The designated initializer. Override if you create the controller programmatically and want to perform customization that is not appropriate for viewDidLoad. 
/* 
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil { 
    self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil]; 
    if (self) { 
     // Custom initialization. 
    } 
    return self; 
} 
*/ 


// Implement viewDidLoad to do additional setup after loading the view, typically from a nib. 
- (void)viewDidLoad { 
    [super viewDidLoad]; 

    NSLog(@"eseguito"); 
    self.colorNames = [[NSArray alloc] initWithObjects:@"Red", @"Green", @"Blue", @"Indigo", @"Violet", nil]; 

    //UILabel *label = (UILabel *)[self.view viewWithTag:111]; 
    //label.backgroundColor = [UIColor colorWithRed:0.2f green:0.3f blue:0.4f alpha:0.00000f]; 

} 



- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation { 
    // Overriden to allow any orientation. 
    return YES; 
} 


- (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. 
} 


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

// Customize the number of rows in the table view. 
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section { 
    return [self.colorNames count]; 
} 

// Customize the appearance of table view cells. 
- (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] autorelease]; 
    } 

    // Configure the cell. 
    cell.textLabel.text = [self.colorNames objectAtIndex: [indexPath row]]; 

    return cell; 
} 

- (void)dealloc { 
    [super dealloc]; 
} 

@end 

這裏是.h文件：

// familySelect.h 
// fptNew 
// 
// Created by Marco on 14/09/11. 
// Copyright 2011 __MyCompanyName__. All rights reserved. 

#import <UIKit/UIKit.h> 


@interface familySelect : UIViewController 
    <UITableViewDelegate, UITableViewDataSource> { 
    NSArray *colorNames; 
} 

@property (nonatomic, retain) NSArray *colorNames; 

@end 

，並在文件中的.xib我已經設置表視圖數據源和delegato到文件的所有者（familySelect）

不明白問題出在哪裏，感謝您的幫助

Answer 1

你需要做界面生成器中的以下連接

• 表格文件的所有者（選擇代表）
• 表格文件的所有者（選擇數據源）
• 文件所有者查看（選擇視圖）：這個連接自動進行
• 文件的所有者表（選擇的tableView）

見also this page

Answer 2

哪裏是你的IBOutlet中的UITableView * myTableView？

Answer 3

看來你已經通過TableView的方法在視圖控制器上，因此崩潰。

-[UIViewController tableView:numberOfRowsInSection:] 

您已將VIew控制器的視圖連接到TableView。相反，聲明一個UITableView並在那裏連接這個tableview。