UITableView的子類不執行初始化過去

Question

我建立它使用一個程序生成UITableView彈出並填充UITextField的應用程序。當用戶觸摸UITextField有效值的TableView中彈出。 UITableView有部分和一個搜索欄。我從另一個我寫的非常類似的應用程序的代碼，它工作正常。

當UITextField被觸摸時，執行在UITableView（CatagoryTableViewController.m）開始，但只有init方法被調用，則控制返回到調用類（ViewController.m）。我已經重寫了UITextField的關鍵彈出窗口。

沒有爲ViewController一個XIB而不是CatagoryTableViewController。的UITextField觸地映射到catagoryFieldPressed方法。

順便提一下，SFCLog定義爲：

define SFCLog(FORMAT, ...) fprintf(stderr,"%s [line %d] %s\n",__PRETTY_FUNCTION__, __LINE__,[[NSString stringWithFormat:FORMAT, ##__VA_ARGS__] UTF8String]) 

我在CatagoryTableViewController放置SFCLog日誌（的NSLog的變型）在每一個方法的開始，並且僅init的以往調用。關於我失蹤的任何想法？

從ViewController.h（呼叫類的頭）

@interface ViewController : UIViewController <UITextFieldDelegate> 
{ 
    Word *currentWord; 
    NSMutableArray *words; 
    int wordsIndex; 
    int viewState; 
    int correctCounter; 
    int incorrectCounter; 
} 

從ViewController.m（呼叫類）

-(BOOL)textFieldShouldBeginEditing:(UITextField *)textField { 
    SFCLog(@""); 
    return NO; // Hide both keyboard and blinking cursor. 
} 

- (IBAction)catagoryFieldPressed:(id)sender 
{ 
    SFCLog(@"Catagory button"); 
    CatagoryTableViewController *childView = [[CatagoryTableViewController alloc] init]; 
    childView.parentView = self; 
    [self.navigationController pushViewController:childView animated:YES]; 
    SFCLog(@"Returned from Catagory button"); 
} 

CatagoryTableViewController.h

@class ViewController; 

@interface CatagoryTableViewController : UITableViewController <UISearchBarDelegate> 
{ 
    NSMutableDictionary *catagoryDictionary; 
    NSArray *filteredArray; 
    UISearchBar *searchBar; 
    UISearchDisplayController *searchController; 
    NSMutableArray *sectionArray; 
} 

@property (nonatomic, weak) ViewController *parentView; 

CatagoryTableViewController.m更多的代碼比這個，但這些方法應該解僱。

@implementation CatagoryTableViewController 
@synthesize parentView; 


- (id) init 
{ 
    SFCLog(@""); 
    if ((self = [super init])) 
    { 
     SFCLog(@"in here");   
    } 
    SFCLog(@""); 
    return self; 
} 


- (void)viewDidLoad 
{ 
    SFCLog(@""); 
    [super viewDidLoad]; 
} 

-(void)loadView 
{ 
    SFCLog(@"load view"); 
    [super loadView]; 
    self.navigationItem.hidesBackButton = TRUE; 

    // Load the catagory dictionary from the database 
    WordService *wordService = [[WordService alloc] init]; 
    NSMutableArray *rawCatagories = [wordService getCatagories]; 
    catagoryDictionary = [NSMutableDictionary dictionary]; 
    for (WordCatagory *wordCatagory in rawCatagories) { 
     [catagoryDictionary setObject:wordCatagory forKey:wordCatagory.wordCatagory]; 
    } 

    // Section Array 
    sectionArray = [NSMutableArray array]; 
    for (int i = 0; i < 26; i++) 
     [sectionArray addObject:[self itemsInSection:i]]; 
    SFCLog(@"sectionArray: %@",sectionArray); 


    // Create a search bar 
    searchBar = [[UISearchBar alloc] initWithFrame:CGRectMake(0.0f, 0.0f, 320.0f, 44.0f)]; 
    searchBar.autocorrectionType = UITextAutocorrectionTypeNo; 
    searchBar.autocapitalizationType = UITextAutocapitalizationTypeNone; 
    searchBar.keyboardType = UIKeyboardTypeAlphabet; 
    self.tableView.tableHeaderView = searchBar; 

    // Create the search display controller 
    searchController = [[UISearchDisplayController alloc] initWithSearchBar:searchBar contentsController:self]; 
    searchController.searchResultsDataSource = self; 
    searchController.searchResultsDelegate = self; 
} 

調試控制檯輸出

[ViewController catagoryFieldPressed:] [line 223] Catagory button 
[CatagoryTableViewController init] [line 18] 
[CatagoryTableViewController init] [line 21] in here 
[CatagoryTableViewController init] [line 23] 
[ViewController catagoryFieldPressed:] [line 227] Returned from Catagory button 
[ViewController textFieldShouldBeginEditing:] [line 33] 

每菲利普·米爾斯的職務加入的NSLog編輯進行調試控制檯輸出。

-[ViewController catagoryFieldPressed:] [line 223] Catagory button 
-[CatagoryTableViewController init] [line 18] 
-[CatagoryTableViewController init] [line 21] in here 
-[CatagoryTableViewController init] [line 23] 
-[CatagoryTableViewController loadView] [line 171] load view 
2012-06-04 18:52:57.930 Fluent[1835:f803] Opened database 
2012-06-04 18:52:57.930 Fluent[1835:f803] Path: /Users/sean/Library/Application Support/iPhone Simulator/5.1/Applications/8B93174F-8836-4533-BCFF-F98AC2F34F26/Documents/fluent_tr.sqlite 
-[WordService getCatagories] [line 114] 
-[CatagoryTableViewController itemsInSection:] [line 46] 
(edited repeating NSLogs to shorten) 
-[CatagoryTableViewController firstLetter:] [line 39] 
-[CatagoryTableViewController numberOfSectionsInTableView:] [line 99] 
-[CatagoryTableViewController tableView:titleForHeaderInSection:] [line 86] 
-[CatagoryTableViewController firstLetter:] [line 39] 
-[CatagoryTableViewController tableView:numberOfRowsInSection:] [line 108] 
2012-06-04 18:52:57.937 Fluent[1835:f803] Rows per section count: 1 
-[CatagoryTableViewController viewDidLoad] [line 31] 
2012-06-04 18:52:57.938 Fluent[1835:f803] Controller: <CatagoryTableViewController: 0x884c880>, View: <UITableView: 0xbb90a00; frame = (0 20; 320 460); clipsToBounds = YES; autoresize = W+H; layer = <CALayer: 0x884ce20>; contentOffset: {0, 0}> 
-[ViewController catagoryFieldPressed:] [line 228] Returned from Catagory button 
-[ViewController textFieldShouldBeginEditing:] [line 33] 

AppDelegate.m之前

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions 
{ 
    self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]]; 

    UIViewController *viewController = [[ViewController alloc] initWithNibName:@"ViewController" bundle:nil]; 
    UIViewController *numberTestViewController = [[ViewController alloc] initWithNibName:@"NumberTestViewController" bundle:nil]; 

    UINavigationController *nav = [[UINavigationController alloc] initWithRootViewController:viewController]; 
    nav.tabBarItem.title = @"Words"; 
    self.tabBarController = [[UITabBarController alloc] init]; 
    self.tabBarController.viewControllers = [NSArray arrayWithObjects:viewController,numberTestViewController, nil]; 
    self.tabBarController.delegate = self; 
    self.window.rootViewController = self.tabBarController; 
    [self.window makeKeyAndVisible]; 
    return YES; 
} 

AppDelegate.m

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions 
{ 
    self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]]; 

    ViewController *viewController = [[ViewController alloc] initWithNibName:@"ViewController" bundle:nil]; 
    NumberTestViewController *numberTestViewController = [[NumberTestViewController alloc] initWithNibName:@"NumberTestViewController" bundle:nil]; 

    UINavigationController *nav = [[UINavigationController alloc] initWithRootViewController:viewController]; 
    self.tabBarController = [[UITabBarController alloc] init]; 
    self.tabBarController.viewControllers = [NSArray arrayWithObjects:nav,numberTestViewController, nil]; 
    self.tabBarController.delegate = self; 
    self.window.rootViewController = self.tabBarController; 
    [self.window makeKeyAndVisible]; 
    return YES; 
} 

Answer 1

後發現的問題，與菲利普·米爾斯的幫助。調用UITableView的視圖控制器未正確添加到導航堆棧。它已被實例化，然後添加到navigationController通過UINavigationController *nav = [[UINavigationController alloc] initWithRootViewController:viewController];但導航控制器本身沒有正確添加到tabBarController。

請參閱上述AppDelegate.m的前後版本。

感謝您的幫助菲利普。