'不完全な実装'の警告

Question

'不完全な実装'の警告が表示されていますが、ソースファイルと比較した理由がわかりません。警告をコメントアウトしました。

ItemsViewController.mのマイバージョン

#import "ItemsViewController.h" 
    #import "BNRItemStore.h" 
    #import "BNRItem.h" 

    @implementation ItemsViewController //Incomplete implementation 

    - (id)init 
    { 
     // Call the superclass's designated initializer 
     self = [super initWithStyle:UITableViewStyleGrouped]; 
     if (self) { 
     UINavigationItem *n = [self navigationItem]; 

     [n setTitle:@"Homepwner"]; 

     // Create a new bar button item that will send 
     // addNewItem: to ItemsViewController 
     UIBarButtonItem *bbi = [[UIBarButtonItem alloc] 
           initWithBarButtonSystemItem:UIBarButtonSystemItemAdd 
           target:self 
           action:@selector(addNewItem:)]; 

     // Set this bar button item as the right item in the navigationItem 
     [[self navigationItem] setRightBarButtonItem:bbi]; 

     [[self navigationItem] setLeftBarButtonItem:[self editButtonItem]]; 
     } 
     return self; 
    } 

    - (IBAction)addNewItem:(id)sender 
    { 
     // Create a new BNRItem and add it to the store 
     BNRItem *newItem = [[BNRItemStore defaultStore] createItem];//No known class method for selector 'defaultStore' 
     // Incompatible pointer types initializing 'BNRItem*__strong' with an expression of 'NSArray' 

     // Figure out where that item is in the array 
     int lastRow = [[[BNRItemStore defaultStore] allItems] indexOfObject:newItem]; //No known class method for selector 'defaultStore' 

     NSIndexPath *ip = [NSIndexPath indexPathForRow:lastRow inSection:0]; 

     // Insert this new row into the table. 
     [[self tableView] insertRowsAtIndexPaths:[NSArray arrayWithObject:ip] 
           withRowAnimation:UITableViewRowAnimationTop]; 
    } 

    - (id)initWithStyle:(UITableViewStyle)style 
    { 
     return [self init]; 
    } 

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

    - (void)tableView:(UITableView *)tableView 
    moveRowAtIndexPath:(NSIndexPath *)fromIndexPath 
      toIndexPath:(NSIndexPath *)toIndexPath 
    { 
     [[BNRItemStore defaultStore] moveItemAtIndex:[fromIndexPath row] //No known class method for selector 'defaultStore' 
              toIndex:[toIndexPath row]]; 
    } 

    - (void)tableView:(UITableView *)aTableView 
    didSelectRowAtIndexPath:(NSIndexPath *)indexPath 
    { 
     DetailViewController *detailViewController = [[DetailViewController alloc] init]; 

     NSArray *items = [[BNRItemStore defaultStore] allItems];//No known class method for selector 'defaultStore' 
     BNRItem *selectedItem = [items objectAtIndex:[indexPath row]]; 

     // Give detail view controller a pointer to the item object in row 
     [detailViewController setItem:selectedItem]; 

     // Push it onto the top of the navigation controller's stack 
     [[self navigationController] pushViewController:detailViewController 
              animated:YES]; 
    } 



    -(BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)io 
    { 
     if ([[UIDevice currentDevice]userInterfaceIdiom]==UIUserInterfaceIdiomPad) { 
     return YES; 
     } else { 
     return (io==UIInterfaceOrientationPortrait); 
     } 
    } 

    - (void)tableView:(UITableView *)tableView 
    commitEditingStyle:(UITableViewCellEditingStyle)editingStyle 
    forRowAtIndexPath:(NSIndexPath *)indexPath 
    { 
     // If the table view is asking to commit a delete command... 
     if (editingStyle == UITableViewCellEditingStyleDelete) 
     { 
     BNRItemStore *ps = [BNRItemStore defaultStore];//No known class method for selector 'defaultStore' 
     NSArray *items = [ps allItems]; 
     BNRItem *p = [items objectAtIndex:[indexPath row]]; 
     [ps removeItem:p]; 

     // We also remove that row from the table view with an animation 
     [tableView deleteRowsAtIndexPaths:[NSArray arrayWithObject:indexPath] 
         withRowAnimation:UITableViewRowAnimationFade]; 
     } 
    } 

    - (NSInteger)tableView:(UITableView *)tableView 
    numberOfRowsInSection:(NSInteger)section 
    { 
     return [[[BNRItemStore defaultStore] allItems] count];//No known class method for selector 'defaultStore' 
    } 
    - (UITableViewCell *)tableView:(UITableView *)tableView 
      cellForRowAtIndexPath:(NSIndexPath *)indexPath 
    { 
     // Create an instance of UITableViewCell, with default appearance 
     // Check for a reusable cell first, use that if it exists 
     UITableViewCell *cell = 
     [tableView dequeueReusableCellWithIdentifier:@"UITableViewCell"]; 

     // If there is no reusable cell of this type, create a new one 
     if (!cell) { 
     cell = [[UITableViewCell alloc] 
       initWithStyle:UITableViewCellStyleDefault 
       reuseIdentifier:@"UITableViewCell"]; 
     } 
     // Set the text on the cell with the description of the item 
     // that is at the nth index of items, where n = row this cell 
     // will appear in on the tableview 
     BNRItem *p = [[[BNRItemStore defaultStore] allItems]//No known class method for selector 'defaultStore' 
        objectAtIndex:[indexPath row]]; 
     [[cell textLabel] setText:[p description]]; 
     return cell; 
    } 

    @end 

Original source version of ItemsViewController.m 

#import "ItemsViewController.h" 
#import "BNRItemStore.h" 
#import "BNRItem.h" 

@implementation ItemsViewController 
- (id)init 
{ 
    // Call the superclass's designated initializer 
    self = [super initWithStyle:UITableViewStyleGrouped]; 
    if (self) { 
     UINavigationItem *n = [self navigationItem]; 

     [n setTitle:@"Homepwner"]; 

     // Create a new bar button item that will send 
     // addNewItem: to ItemsViewController 
     UIBarButtonItem *bbi = [[UIBarButtonItem alloc] 
         initWithBarButtonSystemItem:UIBarButtonSystemItemAdd 
              target:self 
              action:@selector(addNewItem:)]; 

     // Set this bar button item as the right item in the navigationItem 
     [[self navigationItem] setRightBarButtonItem:bbi]; 

     [[self navigationItem] setLeftBarButtonItem:[self editButtonItem]]; 
    } 
    return self; 
} 
- (IBAction)addNewItem:(id)sender 
{ 
    // Create a new BNRItem and add it to the store 
    BNRItem *newItem = [[BNRItemStore defaultStore] createItem]; 

    // Figure out where that item is in the array 
    int lastRow = [[[BNRItemStore defaultStore] allItems] indexOfObject:newItem]; 

    NSIndexPath *ip = [NSIndexPath indexPathForRow:lastRow inSection:0]; 

    // Insert this new row into the table. 
    [[self tableView] insertRowsAtIndexPaths:[NSArray arrayWithObject:ip] 
          withRowAnimation:UITableViewRowAnimationTop]; 
} 
- (id)initWithStyle:(UITableViewStyle)style 
{ 
    return [self init]; 
} 

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


- (void)tableView:(UITableView *)tableView 
    moveRowAtIndexPath:(NSIndexPath *)fromIndexPath 
      toIndexPath:(NSIndexPath *)toIndexPath 
{ 
    [[BNRItemStore defaultStore] moveItemAtIndex:[fromIndexPath row] 
             toIndex:[toIndexPath row]]; 
} 

- (void)tableView:(UITableView *)aTableView 
    didSelectRowAtIndexPath:(NSIndexPath *)indexPath 
{ 
    DetailViewController *detailViewController = [[DetailViewController alloc] init]; 

    NSArray *items = [[BNRItemStore defaultStore] allItems]; 
    BNRItem *selectedItem = [items objectAtIndex:[indexPath row]]; 

    // Give detail view controller a pointer to the item object in row 
    [detailViewController setItem:selectedItem]; 

    // Push it onto the top of the navigation controller's stack 
    [[self navigationController] pushViewController:detailViewController 
              animated:YES]; 
} 

- (void)tableView:(UITableView *)tableView 
    commitEditingStyle:(UITableViewCellEditingStyle)editingStyle 
    forRowAtIndexPath:(NSIndexPath *)indexPath 
{ 
    // If the table view is asking to commit a delete command... 
    if (editingStyle == UITableViewCellEditingStyleDelete) 
    { 
     BNRItemStore *ps = [BNRItemStore defaultStore]; 
     NSArray *items = [ps allItems]; 
     BNRItem *p = [items objectAtIndex:[indexPath row]]; 
     [ps removeItem:p]; 

     // We also remove that row from the table view with an animation 
     [tableView deleteRowsAtIndexPaths:[NSArray arrayWithObject:indexPath] 
         withRowAnimation:UITableViewRowAnimationFade]; 
    } 
} 

- (NSInteger)tableView:(UITableView *)tableView 
numberOfRowsInSection:(NSInteger)section 
{ 
    return [[[BNRItemStore defaultStore] allItems] count]; 
} 
- (UITableViewCell *)tableView:(UITableView *)tableView 
     cellForRowAtIndexPath:(NSIndexPath *)indexPath 
{ 
    // Create an instance of UITableViewCell, with default appearance 
    // Check for a reusable cell first, use that if it exists 
    UITableViewCell *cell = 
     [tableView dequeueReusableCellWithIdentifier:@"UITableViewCell"]; 

    // If there is no reusable cell of this type, create a new one 
    if (!cell) { 
     cell = [[UITableViewCell alloc] 
        initWithStyle:UITableViewCellStyleDefault 
        reuseIdentifier:@"UITableViewCell"]; 
    } 
    // Set the text on the cell with the description of the item 
    // that is at the nth index of items, where n = row this cell 
    // will appear in on the tableview 
    BNRItem *p = [[[BNRItemStore defaultStore] allItems] 
            objectAtIndex:[indexPath row]]; 
    [[cell textLabel] setText:[p description]]; 
    return cell; 
} 
@end 

ItemsViewController.h（私はひどくそれを読んでおりません場合）あなたの.mファイルで2つのメソッドを実装していない

#import <Foundation/Foundation.h> 
#import "DetailViewController.h" 

@interface ItemsViewController : UITableViewController 
{ 
    IBOutlet UIView *headerView; 
} 

-(UIView *)headerView; 
-(IBAction)addNewItem:(id)sender; 
-(IBAction)toggleEditingMode:(id)sender; 

@end 

Answer 1

：

-(UIView *)headerView; 
-(IBAction)toggleEditingMode:(id)sender; 

警告が表示されます。

いずれの場合でも、ビルド結果ウィンドウでは、黄色のアイコンをクリックすると警告アイコンが表示されます。黄色いアイコンをクリックすると、実装に欠落している方法が詳細に表示されますファイル。

Answer 2

次の2つのメソッドを実装しているように見えません。

-(UIView *)headerView; 
-(IBAction)toggleEditingMode:(id)sender;