Ios NSInvalidArgumentException tableView:numberOfRowsInSection错误…但我没有使用选项卡式视图，也没有使用Interface Builder

我正在尝试为iPhone创建一个应用程序，从数据库中提取数据，然后将其显示在一个表格上，在主屏幕上显示一个全新的视图，我要求用户输入数据。我使用此框架来帮助切换应用程序中的视图：

基本上，我对它做了一点修改。我已经很好地实现了它，但是当我填充表时，我必须将一个类中的信息数组传递到我显示表的视图中，我从该类中提取数据。我发现下面显示的代码有问题

-(void) displayView:(int)intNewView{
    NSLog(@"%i", intNewView);
    [currentView.view removeFromSuperview];
    [currentView release];

    ServiceProvider *g = [[ServiceProvider alloc] init];
    ServiceProvider *l = [[ServiceProvider alloc] init];

    [g setSPNAME:@"george"];
    [l setSPNAME:@"luuuuuusaaaa"];

    passInTableToTOI = [[NSMutableArray alloc] initWithObjects:g, l, nil];

    ResultsPage *rP = [[ResultsPage alloc] initWithNibName:@"TableOfItems" bundle:[NSBundle mainBundle]];
    TableOfItems *tOI = [[TableOfItems alloc] init];

    switch (intNewView) {
        case 1:
            currentView = [[SearchPage alloc] init];
            break;
        case 2:
            [tOI setPassedThroughTable:passInTableToTOI];
            [rP setResultsTable:tOI];
            currentView = rP;
            break;
        case 3:
            currentView = [[ShowAllPage alloc] init];
            break;
        /*default:
            break;*/
    }

    //[rP release];
    //[tOI release];
    [self.view addSubview:currentView.view];
}

该表可以正常传递，但当我尝试显示视图时，由于未捕获的异常“NSInvalidArgumentException”，导致终止应用程序时出现此错误，原因：“-[ResultsPage tableView:numberOfRowsInSection:：无法识别的选择器发送到实例0x4e396c0。我觉得我没有提供足够的信息，所以如果您想了解更多信息，请不要犹豫。我不确定还有什么含糊不清的地方，所以让我知道如何更具体一些会有帮助。谢谢大家

[[编辑1]]

//=============ResultsPage.h

#import <UIKit/UIKit.h>

@class TopBottomRectangles;
@class TableOfItems;
@class SearchTextBox;

@interface ResultsPage : UIViewController {

    TopBottomRectangles *tbRects;
    TableOfItems *resultsTable;
    SearchTextBox *sTB;

}

@property (nonatomic, retain) IBOutlet TableOfItems *resultsTable;

@end

[[编辑2]]

//==TableOfItems.h文件

#import <UIKit/UIKit.h>
@interface TableOfItems : UITableViewController {
    NSMutableArray *listOfItems;
    NSMutableArray *passedThroughTable;
}

@property (nonatomic, retain) NSMutableArray* passedThroughTable;

@end

//====TableOfItems.m文件

#import "TableOfItems.h"
#import "MyTableCell.h"
#import "ServiceProvider.h"


@implementation TableOfItems
@synthesize passedThroughTable;

#pragma mark -
#pragma mark View lifecycle

- (void)viewDidLoad {
    [super viewDidLoad];

    // Uncomment the following line to display an Edit button in the navigation bar for this view controller.
    // self.navigationItem.rightBarButtonItem = self.editButtonItem;

    self.navigationController.navigationBarHidden = YES;
    //set the size of the table
    [self fixTableSize];

    NSMutableArray *spName = [[NSMutableArray alloc] init];
    for (int i = 0; i < [passedThroughTable count]; i++){

        ServiceProvider *willBeGone = [[ServiceProvider alloc] init];
        willBeGone = [passedThroughTable objectAtIndex:i];
        [spName addObject:willBeGone.SPNAME];

        NSLog(@"%@", [spName objectAtIndex:i]);
        //[willBeGone release];

    }

    //Initialize the array.
    listOfItems = [[NSMutableArray alloc] init];

    NSArray *countriesToLiveInArray = [NSArray arrayWithObjects:@"Iceland", @"Greenland", @"Switzerland", @"Norway", @"New Zealand", @"Greece", @"Rome", @"Ireland", nil];
    NSDictionary *countriesToLiveInDict = [NSDictionary dictionaryWithObject:countriesToLiveInArray forKey:@"Countries"];

    NSArray *countriesLivedInArray = [NSArray arrayWithObjects:@"India", @"U.S.A", nil];
    NSDictionary *countriesLivedInDict = [NSDictionary dictionaryWithObject:countriesLivedInArray forKey:@"Countries"];

    [listOfItems addObject:countriesToLiveInDict];
    [listOfItems addObject:countriesLivedInDict];
}

-(void)fixTableSize{

    CGRect screenBounds = [[UIScreen mainScreen] bounds];
    CGFloat screenScale = [[UIScreen mainScreen] scale];

    NSInteger height = screenBounds.size.height * screenScale;
    NSInteger windowHeight = 100;
    NSInteger yFromTop = 60;
    NSInteger yFromBottom = height + 30 - windowHeight;

    self.tableView.frame = CGRectMake(0,yFromTop,320,yFromBottom - yFromTop);

}



#pragma mark -
#pragma mark Table view data source

- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
    // Return the number of sections.
    return [listOfItems count];
}

- (NSString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section {

    NSArray *sectionTitles = [[NSArray alloc] initWithObjects:@"Countries to visit", @"Countries visited", nil];

    return [sectionTitles objectAtIndex:section];
}

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
    tableView.separatorStyle = UITableViewCellSeparatorStyleSingleLine;

    NSLog(@"====");

    //Number of rows it should expect should be based on the section
    NSDictionary *dictionary = [listOfItems objectAtIndex:section];
    NSArray *array = [dictionary objectForKey:@"Countries"];
    return [array count];
}


// Customize the appearance of table view cells.
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {

    NSString *MyIdentifier = [NSString stringWithFormat:@"MyIdentifier %i", indexPath.row];
    MyTableCell *cell = (MyTableCell *)[tableView dequeueReusableCellWithIdentifier:MyIdentifier];
    NSDictionary *dictionary = [listOfItems objectAtIndex:indexPath.section];
    NSArray *array = [dictionary objectForKey:@"Countries"];

    if (cell == nil) {
        cell = [[[MyTableCell alloc] initWithFrame:CGRectZero reuseIdentifier:MyIdentifier] autorelease];

        UILabel *label = [[[UILabel alloc] initWithFrame:CGRectMake(1, 1, 30.0, 
                                                                tableView.rowHeight)] autorelease]; 
        [cell addColumn:60];
        //label.tag = FIRCOL_TAG; 
        label.font = [UIFont systemFontOfSize:12.0]; 
        label.text = [NSString stringWithFormat:@"%d:00", indexPath.row];
        label.textAlignment = UITextAlignmentRight; 
        label.textColor = [UIColor blueColor]; 
        label.autoresizingMask = UIViewAutoresizingFlexibleRightMargin | 
        UIViewAutoresizingFlexibleTopMargin; 
        [cell.contentView addSubview:label]; 

        label =  [[[UILabel alloc] initWithFrame:CGRectMake(70.0, 0, 110, 
                                                        tableView.rowHeight)] autorelease]; 
        [cell addColumn:260];
        //label.tag = SECCOL_TAG; 
        label.font = [UIFont systemFontOfSize:12.0]; 
        label.text = [NSString stringWithFormat:@"%@", [array objectAtIndex:indexPath.row]];
        label.textAlignment = UITextAlignmentLeft; 
        label.textColor = [UIColor blackColor]; 
        label.autoresizingMask = UIViewAutoresizingFlexibleRightMargin | 
        UIViewAutoresizingFlexibleHeight; 
        [cell.contentView addSubview:label];

        label =  [[[UILabel alloc] initWithFrame:CGRectMake(270.0, 0, 30, 
                                                        tableView.rowHeight)] autorelease]; 
        //[cell addColumn:180];
        //label.tag = THIRCOL_TAG; 
        label.font = [UIFont systemFontOfSize:12.0]; 
        // add some silly value
        label.text = [NSString stringWithFormat:@"$%d", indexPath.row * 4];
        label.textAlignment = UITextAlignmentLeft; 
        label.textColor = [UIColor blueColor]; 
        label.autoresizingMask = UIViewAutoresizingFlexibleRightMargin | 
        UIViewAutoresizingFlexibleHeight; 
        [cell.contentView addSubview:label];
    }

    return cell;

} 





@end

---

我认为问题不在显示给您的代码中。读取异常时，问题出在ResultsPage类中

ResultsPage*rP=[[ResultsPage alloc]initWithNibName:@TableOfItems bundle:[NSBundle mainBundle]]

在tableview数据委托方法中：

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section

因此，可能返回的值是错误的或是一些参数。我们需要结果页面代码

---

再见

错误消息告诉您正在对非UITableViewDataSource的对象调用UITableViewDataSource方法，因为它没有实现方法：tableView:numberOfRowsInSection。 此方法与UITableView对象有关，我在代码或PushPlay示例中都没有看到任何UITableView对象。 不用细细梳理，我会说您正在尝试使用NSMutableArray来代替UITableView及其代理。 数组是UITableView的良好数据源，但不能直接替代tableView

希望有帮助

---

-迈克我发现了我的问题。这是一条：

    ResultsPage *rP = [[ResultsPage alloc] initWithNibName:@"TableOfItems" bundle:[NSBundle mainBundle]];
    TableOfItems *tOI = [[TableOfItems alloc] init];

应该是

    ResultsPage *rP = [[ResultsPage alloc] init];
    TableOfItems *tOI = [[TableOfItems alloc] initWithNibName:@"TableOfItems" bundle:[NSBundle mainBundle]];

我有一个名为TableOfItems的.xib文件，它应该与填充用户界面的类TableOfItems相对应。这个类包含所有创建行、节等的委托

---

很抱歉，我犯了这样一个愚蠢的错误…我认为没有访问.xcodeproj的权限的人不容易发现这一点

什么类继承resultsTable？我显示resultsTable属于TableOfItems类型，我只是为此添加了代码…我不确定是否回答了您的问题。

    ResultsPage *rP = [[ResultsPage alloc] init];
    TableOfItems *tOI = [[TableOfItems alloc] initWithNibName:@"TableOfItems" bundle:[NSBundle mainBundle]];