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我的应用程序运行良好,我没有修改它有一个专用的数据控制器类,而不是像在初始测试期间那样在主UI类中处理数据。但是,自从更改后,向tableview添加新项目时它会一直崩溃。TableView崩溃insertRowsAtIndexPath
它崩溃的代码行和错误是;
[self.tableView insertRowsAtIndexPaths:[NSArray arrayWithObject:indexPath] withRowAnimation:UITableViewRowAnimationAutomatic];
2012-07-22 07:17:44.772 speecher [1897:707] *终止应用程序由于 未捕获的异常 'NSInternalInconsistencyException',原因: “试图插入行0到节0,但更新”
该类的完整代码,(主MasterViewController类)如下之后有在 部分0只有0行。
//
// SpeecherMasterViewController.m
// speecher
//
//
#import "SpeecherMasterViewController.h"
#import "SpeecherDataController.h"
#import "SpeecherDetailViewController.h"
@interface SpeecherMasterViewController() {
NSString *newTitle;
NSMutableArray *_speeches;
NSMutableArray *_content;
SpeecherDataController *object;
}
@end
@implementation SpeecherMasterViewController
@synthesize detailViewController = _detailViewController;
- (void)awakeFromNib
{
self.clearsSelectionOnViewWillAppear = NO;
self.contentSizeForViewInPopover = CGSizeMake(320.0, 600.0);
[super awakeFromNib];
}
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
self.navigationItem.leftBarButtonItem = self.editButtonItem;
UIBarButtonItem *addButton = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemAdd target:self action:@selector(insertNewObject:)];
self.navigationItem.rightBarButtonItem = addButton;
self.detailViewController = (SpeecherDetailViewController *)[[self.splitViewController.viewControllers lastObject] topViewController];
object = [[SpeecherDataController alloc] init];
}
- (void)viewDidUnload
{
[super viewDidUnload];
// Release any retained subviews of the main view.
}
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
return YES;
}
#pragma mark - Table View
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
return 1;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
return [object returnNoObjects];
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:@"Cell"];
cell.textLabel.text = [object returnTitle:indexPath.row];
return cell;
}
- (BOOL)tableView:(UITableView *)tableView canEditRowAtIndexPath:(NSIndexPath *)indexPath
{
// Return NO if you do not want the specified item to be editable.
return YES;
}
- (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath
{
if (editingStyle == UITableViewCellEditingStyleDelete) {
[_speeches removeObjectAtIndex:indexPath.row];
[tableView deleteRowsAtIndexPaths:[NSArray arrayWithObject:indexPath] withRowAnimation:UITableViewRowAnimationFade];
} 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;
}
*/
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
NSString *titleobj = [object returnTitle:indexPath.row];
NSString *contentobj = [object returnContent:indexPath.row];
self.detailViewController.detailItem = titleobj;
self.detailViewController.detaitContent = contentobj;
}
- (void)insertNewObject:(id)sender
{
//Make sure clear before we start, also make sure initalized (double redundancy with clear statement at end)
newTitle = @"";
//New Title pop up UIAlert View
UIAlertView * alert = [[UIAlertView alloc]
initWithTitle:@"New Speech"
message:@"Please enter a name for speech"
delegate:self
cancelButtonTitle:@"Create"
otherButtonTitles:nil];
alert.alertViewStyle = UIAlertViewStylePlainTextInput;
UITextField * alertTextField = [alert textFieldAtIndex:0];
alertTextField.keyboardType = UIKeyboardTypeDefault;
alertTextField.placeholder = @"Enter a new title";
[alert show];
}
- (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex
{
newTitle = [[alertView textFieldAtIndex:0] text];
[object addNewContent:newTitle :@"IT REALLY WORKS!" :@"Nothing"];
//create new speech title, add to array and add to tableview
NSIndexPath *indexPath = [NSIndexPath indexPathForRow:0 inSection:0];
[self.tableView insertRowsAtIndexPaths:[NSArray arrayWithObject:indexPath] withRowAnimation:UITableViewRowAnimationAutomatic];
//Clear newTitle for use next time
newTitle = @"";
}
@end
编辑:
修正案增加了[object addNewContent]
方法&类按照意见,
//
// SpeecherDataController.m
// speecher
//
//
#import "SpeecherDataController.h"
@interface SpeecherDataController()
{
NSMutableArray *titles;
NSMutableArray *content;
NSMutableArray *timer;
}
@end
@implementation SpeecherDataController
-(void) addNewContent:(NSString*)sTitle : (NSString*)sContent :(NSString*)sTimer
{
[titles insertObject:sTitle atIndex:0];
[content insertObject:sContent atIndex:0];
[timer insertObject:sTimer atIndex:0];
}
//Methods to return data
-(NSString*) returnTitle:(NSUInteger)row
{
return [titles objectAtIndex:row];
}
-(NSString*) returnContent:(NSUInteger)row
{
return [content objectAtIndex:row];
}
-(NSString*) returnTimer:(NSUInteger)row
{
return [timer objectAtIndex:row];
}
-(NSInteger) returnNoObjects
{
return titles.count;
}
@end
我看不到任何错误,你所提供的代码,不过看你所得到的消息,并在“的tableView:numberOfRowsInSection:”方法,我猜你的'[object returnNoObjects]'方法没有返回正确的行数(在这种情况下为0)。 – 2012-07-22 06:38:21
@NSArray你几乎没错。当看着我发现'[object addNewContent]'函数实际上并没有添加内容。修改问题以显示该功能。 – jskrwyk 2012-07-22 06:58:48
尝试在添加对象后打印出'titles'数组的值。如果它没有分配,你会想要做什么JamesKraw建议。 – 2012-07-22 07:48:08