UITableview 可滚动问题

我正在将所有数据添加到我的 iPhone 应用程序中，除了将数据硬编码到其中之外，还完成了编码.我遇到了一个问题.我正在使用 UITableviews 并且我在每个表视图中添加了大约 150-250 个项目，它允许我添加数据，但是当我运行它时，它不会让我向下滚动超过大约 12 个项目.我希望能够滚动浏览所有 200 多个项目，但正如我所说，它只允许前 12 个左右.我将在下面发布我的代码片段.

I am in the process of adding all of my data to my iPhone application, the coding is done other than hard coding the data into it. I have run into an issue. I am using UITableviews and I am adding around 150-250 items per table view, it allows me to add the data, but when I run it won't let me scroll down past about 12 items. I would like to be able to scroll through all 200+ of my items, but as I said it only allows the first 12 or so. I will post a snippet of my code below.

RootTableViewController.h

#import <UIKit/UIKit.h>

@interface RootTableViewController : UITableViewController

@end

RootTableViewController.m

#import "RootTableViewController.h"
#import "SecondTableViewController.h"

@interface RootTableViewController ()

@end

@implementation RootTableViewController
{
NSArray *states;
}

- (id)initWithStyle:(UITableViewStyle)style
{
self = [super initWithStyle:style];
if (self) {
    // Custom initialization
}
return self;
}

- (void)viewDidLoad
{
[super viewDidLoad];

states = [NSArray arrayWithObjects:@"Alabama", @"Georgia", @"Tennessee", @"Colorado", nil];
}

- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}


- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
return 1;
}

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
return [states count];
}


- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
//table identifier
static NSString *simpleTableIdentifier = @"StateCell";

//creating a cell
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:simpleTableIdentifier];

//if cell doesn't have anything in it, creates a new one
if(cell == nil)
{
    cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:simpleTableIdentifier];
}

//creates text for cell, depending on what row it is
cell.textLabel.text = [states objectAtIndex:indexPath.row];
cell.textLabel.font = [UIFont fontWithName:@"Chalkduster" size:17];

return cell;
}

- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{
//push segue identifier 'showArrayDetail'
if([segue.identifier isEqualToString:@"showStateDetail"])
{
    //row that we clicked on
    NSIndexPath *indexPath = [self.tableView indexPathForSelectedRow];

    //'SecondTableVieController' object is created
    SecondTableViewController *destViewController = segue.destinationViewController;

    //sets 'stateName' to what row you pick
    destViewController.stateName = [states objectAtIndex:indexPath.row];

    //sets title to 'stateName' you picked
    destViewController.title = [NSString stringWithFormat:@"%@ Areas", destViewController.stateName];
}
}

@end

SecondTableViewController.h

#import <UIKit/UIKit.h>

@interface SecondTableViewController : UITableViewController

@property (nonatomic, strong) NSString *stateName;

@end

SecondTableViewController.m

#import "SecondTableViewController.h"
#import "ThirdTableViewController.h"

@interface SecondTableViewController ()

@end

@implementation SecondTableViewController
{
NSArray *areas;
}

- (id)initWithStyle:(UITableViewStyle)style
{
self = [super initWithStyle:style];
if (self) {
    // Custom initialization
}
return self;
}

- (void)viewDidLoad
{
[super viewDidLoad];

//populating arrays
NSDictionary *dict = @{@"Alabama":@[@"Moss Rock Preserve Boulder Fields", @"Alabama Area 2", 
@"Alabama Area 3"], @"Georgia": @[@"Georgia Area 1", @"Georgia Area 2", @"Georgia Area 3"], 
@"Tennessee":@[@"Tennessee Area 1", @"Tennessee Area 2", @"Tennessee Area 3"], 
@"Colorado":@[@"Colorado Area 1", @"Colorado Area 2", @"Colorado Area 3"]};

areas = dict[self.stateName];



}

- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}

- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
return 1;
}

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
return areas.count;
}


- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *simpleTableIdentifier = @"AreaCell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:simpleTableIdentifier];
cell.textLabel.text = areas[indexPath.row];
return cell;
}

- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{
//push segue identifier 'showArrayDetail'
if([segue.identifier isEqualToString:@"showAreaDetail"])
{
    NSIndexPath *indexPath = [self.tableView indexPathForSelectedRow];
    ThirdTableViewController *destViewController = segue.destinationViewController;
    destViewController.areaName = areas[indexPath.row];
    destViewController.title = [NSString stringWithFormat:@"%@ Climbs", destViewController.areaName];
}
}

@end

ThirdTableViewController.h

#import <UIKit/UIKit.h>

@interface ThirdTableViewController : UITableViewController

@property (nonatomic, strong) NSString *areaName;

@end

ThirdTableViewController.m

#import "ThirdTableViewController.h"
#import "FourthTableViewController.h"

@interface ThirdTableViewController ()

@end

@implementation ThirdTableViewController
{
NSArray *climbs;
}

- (id)initWithStyle:(UITableViewStyle)style
{
self = [super initWithStyle:style];
if (self) {
    // Custom initialization
}
return self;
}

- (void)viewDidLoad
{
[super viewDidLoad];

//populating arrays
NSDictionary *dict = @{@"Moss Rock Preserve Boulder Fields":@[@"Tesseract", @"Chalky Dreams",   
@"Aristocratic Nose", @"Bee Stings", @"Recovery Run Traverse", @"Heel Shock", @"Fourth of July", 
@"No Sack", @"Poop Dreams", @"Hoop Dreams", @"Grass Man Traverse", @"Mikey Likes It", @"Just 
Throw", @"Rapture"], @"Georgia Area 1": @[@"Georgia Climb 1", @"Georgia Climb 2", @"Georgia 
Climb 3"], @"Tennessee Area 1":@[@"Tennessee Climb 1", @"Tennessee Climb 2", @"Tennessee Climb 
3"], @"Colorado Area 1":@[@"Colorado Climb 1", @"Colorado Climb 2", @"Colorado Climb 3"]};

climbs = dict[self.areaName];
}

- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}


- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
return 1;
}

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
return climbs.count;
}


- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *simpleTableIdentifier = @"ClimbCell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:simpleTableIdentifier];
cell.textLabel.text = climbs[indexPath.row];
return cell;
}

- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
 {
 //push segue identifier 'showArrayDetail'
 if([segue.identifier isEqualToString:@"showClimbDetail"])
 {
     NSIndexPath *indexPath = [self.tableView indexPathForSelectedRow];
     FourthTableViewController *destViewController = segue.destinationViewController;
     destViewController.climbName = climbs[indexPath.row];
     destViewController.title = [NSString stringWithFormat:@"%@ Specs", destViewController.climbName];
 }

 }

@end

FourthViewController.h

#import <UIKit/UIKit.h>

@interface FourthTableViewController : UITableViewController

@property (nonatomic, strong) NSString *climbName;

@end

FourthViewController.m

#import "FourthTableViewController.h"

@interface FourthTableViewController ()

@end

@implementation FourthTableViewController
{
NSArray *specs;
}

- (id)initWithStyle:(UITableViewStyle)style
{
self = [super initWithStyle:style];
if (self) {
    // Custom initialization
}
return self;
}

- (void)viewDidLoad
{
[super viewDidLoad];

//populating arrays
NSDictionary *dict = @{@"Tesseract":@[@"Alabama Spec 1", @"Alabama Spec 2", @"Alabama Spec 3"], 
@"Georgia Climb 1": @[@"Georgia Spec 1", @"Georgia Spec 2", @"Georgia Spec 3"], @"Tennessee 
Climb 1":@[@"Tennessee Spec 1", @"Tennessee Spec 2", @"Tennessee Spec 3"], @"Colorado Climb 
1":@[@"Colorado Spec 1", @"Colorado Spec 2", @"Colorado Spec 3"]};

specs = dict[self.climbName];

}

- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}

- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
return 1;
}

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
return specs.count;
}


- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *simpleTableIdentifier = @"SpecCell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:simpleTableIdentifier];
cell.textLabel.text = specs[indexPath.row];
cell.textLabel.font = [UIFont fontWithName:@"Chalkduster" size:17];

return cell;
}

我想我需要像在 Java 应用程序中一样添加一个可滚动部分"，但它已经是可滚动的....

I was thinking I needed to add a "scrollable section" like I would in a Java application, but it is already scrollable....

谢谢