objective-c - 「不完全な実装」に対する警告

Question

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

私のバージョンのItemsViewController.m

    #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

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

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

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

@end

score 1 · Accepted Answer

.mファイルに2つのメソッドを実装していません（私がそれをひどく読んでいない場合）：

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

そのため、警告が表示されます。

いずれの場合も、ビルド結果ウィンドウで、黄色のアイコンに数字が含まれている警告が表示されたら、黄色のアイコンをクリックすると、実装ファイルに欠落しているメソッドの詳細が詳細に表示されます。

score 0 · Accepted Answer

次の2つのメソッドを実装していないようです。

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

objective-c - 「不完全な実装」に対する警告

2 に答える 2

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