Я создаю приложение, которое использует UINavigationController (перо вида RootViewController.xib), расположенное в MainWindow.xib, и UITableView в RootViewController.xib.
У меня есть этот код:
MainWindow.xib's UINavigationController
извините, вам нужно, чтобы увидеть это изображение http://img42.imageshack.us/img42/9338/schermafbeelding2010021.png
TDAppDelegate.h
@interface TDAppDelegate : NSObject <UIApplicationDelegate> {
// VARIABLES
NSManagedObjectModel *managedObjectModel;
NSManagedObjectContext *managedObjectContext;
NSPersistentStoreCoordinator *persistentStoreCoordinator;
// IBOUTLETS
UIWindow *window;
UINavigationController *navigationController;
}
// PROPERTIES
@property(nonatomic, retain, readonly) NSManagedObjectModel *managedObjectModel;
@property(nonatomic, retain, readonly) NSManagedObjectContext *managedObjectContext;
@property(nonatomic, retain, readonly) NSPersistentStoreCoordinator *persistentStoreCoordinator;
@property(nonatomic, retain) IBOutlet UIWindow *window;
@property(nonatomic, retain) IBOutlet UINavigationController *navigationController;
// IBACTIONS
// METHODS
- (NSString *)applicationDocumentsDirectory;
@end
TDAppDelegate.m
#import "TDAppDelegate.h"
@implementation TDAppDelegate
@synthesize window;
@synthesize navigationController;
// MEMORY
- (void)dealloc {
[managedObjectContext release];
[managedObjectModel release];
[persistentStoreCoordinator release];
[navigationController release];
[window release];
[super dealloc];
}
// APPLICATION
- (void)applicationDidFinishLaunching:(UIApplication *)application {
[window makeKeyAndVisible];
[window addSubview:[navigationController view]]; // IT GOES WRONG WHEN I DO THIS
}
- (void)applicationWillTerminate:(UIApplication *)application {
// Save changes before quitting =D
NSError *error = nil;
if(managedObjectContext != nil) {
if([managedObjectContext hasChanges] && ![managedObjectContext save:&error]) {
NSLog(@"Unresolved error %@, %@", error, [error userInfo]);
abort();
}
}
}
// CORE DATA
- (NSManagedObjectContext *) managedObjectContext {
// Returns the managed object context for the application. If the context doesn't already exist, it is created and bound to the persistent store coordinator for the application.
if(managedObjectContext != nil) {
return managedObjectContext;
}
NSPersistentStoreCoordinator *coordinator = [self persistentStoreCoordinator];
if(coordinator != nil) {
managedObjectContext = [[NSManagedObjectContext alloc] init];
[managedObjectContext setPersistentStoreCoordinator: coordinator];
}
return managedObjectContext;
}
- (NSManagedObjectModel *)managedObjectModel {
// Returns the managed object model for the application. If the model doesn't already exist, it is created by merging all of the models found in the application bundle.
if(managedObjectModel != nil) {
return managedObjectModel;
}
managedObjectModel = [[NSManagedObjectModel mergedModelFromBundles:nil] retain];
return managedObjectModel;
}
- (NSPersistentStoreCoordinator *)persistentStoreCoordinator {
// Returns the persistent store coordinator for the application. If the coordinator doesn't already exist, it is created and the application's store added to it.
if (persistentStoreCoordinator != nil) {
return persistentStoreCoordinator;
}
NSURL *storeUrl = [NSURL fileURLWithPath: [[self applicationDocumentsDirectory] stringByAppendingPathComponent: @"To_Do.sqlite"]];
NSError *error = nil;
persistentStoreCoordinator = [[NSPersistentStoreCoordinator alloc] initWithManagedObjectModel:[self managedObjectModel]];
if(![persistentStoreCoordinator addPersistentStoreWithType:NSSQLiteStoreType configuration:nil URL:storeUrl options:nil error:&error]) {
NSLog(@"Unresolved error %@, %@", error, [error userInfo]);
UIAlertView *quitAlert = [[UIAlertView alloc] initWithTitle:NSLocalizedString(@"error", @"error") message:[NSString stringWithFormat:NSLocalizedString(@"persistentstorecoordinator error", @""), [error userInfo]] delegate:nil cancelButtonTitle:nil otherButtonTitles:nil];
[quitAlert show];
[quitAlert release];
}
return persistentStoreCoordinator;
}
- (NSString *)applicationDocumentsDirectory {
// Returns the path to the application's Documents directory.
return [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) lastObject];
}
@end
TDRootViewController.h
#import <UIKit/UIKit.h>
@interface TDRootViewController : UITableViewController <UITableViewDataSource> {
NSMutableArray *todoArray;
NSManagedObjectContext *managedObjectContext;
UIBarButtonItem *addButton;
}
@property(nonatomic, retain) NSMutableArray *todoArray;
@property(nonatomic, retain) NSManagedObjectContext *managedObjectContext;
@property(nonatomic, retain) UIBarButtonItem *addButton;
@end
TDRootViewController.m
#import "TDRootViewController.h"
#import "TodoItem.h"
@implementation TDRootViewController
// MEMORY
- (void)dealloc {
[super dealloc];
}
- (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
}
- (void)viewDidUnload {
}
// VIEW
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {
if(interfaceOrientation == UIInterfaceOrientationPortrait || interfaceOrientation == UIInterfaceOrientationLandscapeLeft || interfaceOrientation == UIInterfaceOrientationLandscapeRight) {
return YES;
}
return NO;
}
// TABLE VIEW
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
return 1;
}
// Customize the number of rows in the table view.
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
return 1;
}
// 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];
}
// Set up the cell...
return cell;
}
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
// Navigation logic may go here. Create and push another view controller.
// AnotherViewController *anotherViewController = [[AnotherViewController alloc] initWithNibName:@"AnotherView" bundle:nil];
// [self.navigationController pushViewController:anotherViewController];
// [anotherViewController release];
}
/*
// Override to support conditional editing of the table view.
- (BOOL)tableView:(UITableView *)tableView canEditRowAtIndexPath:(NSIndexPath *)indexPath {
// Return NO if you do not want the specified item to be editable.
return YES;
}
*/
/*
// Override to support editing the table view.
- (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath {
if (editingStyle == UITableViewCellEditingStyleDelete) {
// Delete the row from the data source
[tableView deleteRowsAtIndexPaths:[NSArray arrayWithObject:indexPath] withRowAnimation:YES];
}
else if (editingStyle == UITableViewCellEditingStyleInsert) {
// Create a new instance of the appropriate class, insert it into the array, and add a new row to the table view
}
}
*/
/*
// Override to support rearranging the table view.
- (void)tableView:(UITableView *)tableView moveRowAtIndexPath:(NSIndexPath *)fromIndexPath toIndexPath:(NSIndexPath *)toIndexPath {
}
*/
/*
// Override to support conditional rearranging of the table view.
- (BOOL)tableView:(UITableView *)tableView canMoveRowAtIndexPath:(NSIndexPath *)indexPath {
// Return NO if you do not want the item to be re-orderable.
return YES;
}
*/
// METHODS
- (void)addItem {
TodoItem *todoItem = (TodoItem *)[NSEntityDescription insertNewObjectForEntityForName:@"TodoItem" inManagedObjectContext:managedObjectContext];
}
@end
фу = D
Хорошо, мое приложение компилируется правильно, но когда оно запускается, святая Консоль говорит следующее:
[Session started at 2010-02-14 14:40:12 +0100.]
2010-02-14 14:40:15.245 To Do[1478:207] *** -[UIViewController tableView:numberOfRowsInSection:]: unrecognized selector sent to instance 0x3a155b0
2010-02-14 14:40:15.246 To Do[1478:207] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '*** -[UIViewController tableView:numberOfRowsInSection:]: unrecognized selector sent to instance 0x3a155b0'
2010-02-14 14:40:15.246 To Do[1478:207] Stack: (
30893147,
2500113673,
31275067,
30844534,
30697154,
4364410,
4371786,
4370783,
3087322,
3027833,
3069268,
3057823,
57406128,
57405551,
57403590,
57402682,
2731769,
2755464,
2737875,
2764981,
38989521,
30677888,
30673992,
2731625,
2768899,
10592,
10446
)
Я думаю, что это как-то связано с numberOfRowsInSection, но я не уверен. Может кто-нибудь мне помочь? Спасибо