Ios 越界误差

我的应用程序有一个表视图，其中包含从解析表中获取的作业列表。用户可以点击导航栏上的“+”按钮转到另一个屏幕以创建新作业。创建新作业后，它将返回到作业列表，并将刚刚创建的作业添加到列表中。问题是，我可以选择列表中已经存在的两个作业，没有问题，但当我尝试选择新作业时，应用程序崩溃，出现以下错误：

Terminating app due to uncaught exception 'NSRangeException', reason: '*** -[__NSArrayI objectAtIndex:]: index 2 beyond bounds [0 .. 1]'

以下是作业列表的代码：

#import "UnassignedJobs.h"
#import "AppDelegate.h"
#import "NavController.h"
#import "LogInViewController.h"
#import "NewJobViewController.h"
#import "JobDetailViewController.h"
#import <Parse/Parse.h>

@interface UnassignedJobs ()

@property (nonatomic, strong) NSMutableArray *jobs;
@property (nonatomic, strong) NSMutableArray *objectIds;
@property (nonatomic, strong) UIActivityIndicatorView *loadingIndicator;
@property (nonatomic, strong) UIRefreshControl *refresh;

@end

@implementation UnassignedJobs

- (void)viewDidLoad {
    [super viewDidLoad];

    [self.tableView setDataSource:self];
    [self.tableView setDelegate:self];

    UIBarButtonItem *logoutButton = [[UIBarButtonItem alloc]initWithTitle:@"Logout" style:UIBarButtonItemStylePlain target:self action:@selector(logoutPressed)];
    self.navigationItem.leftBarButtonItem = logoutButton;

    UIBarButtonItem *newJobButton = [[UIBarButtonItem alloc]initWithBarButtonSystemItem:UIBarButtonSystemItemAdd target:self action:@selector(createJob)];
    self.navigationItem.rightBarButtonItem = newJobButton;

    NSString *currentUserFullName = [[PFUser currentUser]objectForKey:@"Name"];
    if ([currentUserFullName isEqualToString:@"Cory Pollard"] || [currentUserFullName isEqualToString:@"Richie Ray"]) {
        newJobButton.enabled = YES;
    }
    else {
        newJobButton.enabled = NO;
    }

    CGFloat width = CGRectGetWidth(self.view.bounds);
    CGFloat height = CGRectGetHeight(self.view.bounds);

    self.loadingIndicator = [[UIActivityIndicatorView alloc]initWithFrame:CGRectMake(width / 2, height / 2, 37, 37)];
    self.loadingIndicator.center = CGPointMake(width / 2, height / 2 - 37);
    self.loadingIndicator.autoresizingMask = (UIViewAutoresizingFlexibleRightMargin | UIViewAutoresizingFlexibleLeftMargin | UIViewAutoresizingFlexibleBottomMargin | UIViewAutoresizingFlexibleTopMargin);
    self.loadingIndicator.activityIndicatorViewStyle = UIActivityIndicatorViewStyleGray;
    self.loadingIndicator.hidesWhenStopped = YES;
    [self.view addSubview:self.loadingIndicator];
    [self.loadingIndicator startAnimating];

    [self getJobs];

    self.refresh = [[UIRefreshControl alloc]init];
    self.refresh.tintColor = [UIColor blackColor];
    [self.refresh addTarget:self action:@selector(refreshData) forControlEvents:UIControlEventValueChanged];
    self.refreshControl = self.refresh;
}

- (void)viewDidAppear:(BOOL)animated {

}

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

- (void)getJobs {
    self.jobs = [[NSMutableArray alloc]init];
    self.objectIds = [[NSMutableArray alloc]init];

    PFQuery *query = [PFQuery queryWithClassName:@"Jobs"];
    [query setLimit:1000];
    [query findObjectsInBackgroundWithBlock:^(NSArray *objects, NSError *error) {
        if (!error) {

            for (NSDictionary *objectDictionary in objects) {
                NSString *assigned = [objectDictionary objectForKey:@"assigned"];
                if ([assigned isEqualToString:@"no"]) {
                    [self.jobs addObject:objectDictionary];
                    // self.objectIds = [objects valueForKeyPath:@"objectId"];
                }

                for (int i = 0; i < self.jobs.count; i++) {
                    [self.objectIds addObject:[self.jobs valueForKeyPath:@"objectId"]];
                }
            }

            dispatch_async(dispatch_get_main_queue(), ^ {

                [self.tableView reloadData];

                [self.loadingIndicator stopAnimating];
            });
        }
        else {
            NSLog(@"Error: %@ %@", error, [error userInfo]);
        }
    }];
}

- (void)createJob {
    AppDelegate *appDelegate = (AppDelegate *)[[UIApplication sharedApplication]delegate];

    NewJobViewController *jobCreateScreen = [[NewJobViewController alloc]initWithNibName:@"NewJobViewController" bundle:nil];
    NavController *newJobNav = [[NavController alloc]initWithRootViewController:jobCreateScreen];
    newJobNav.delegate = jobCreateScreen;

    appDelegate.window.rootViewController = newJobNav;
}

- (void)logoutPressed {
    [PFUser logOut];

    AppDelegate *appDelegate = (AppDelegate *)[[UIApplication sharedApplication]delegate];

    LogInViewController *loginScreen = [[LogInViewController alloc]initWithNibName:@"LogInViewController" bundle:nil];
    NavController *loginNavController = [[NavController alloc]initWithRootViewController:loginScreen];
    loginNavController.delegate = loginScreen;

    appDelegate.window.rootViewController = loginNavController;
}

- (void)refreshData {
    [self getJobs];

    [self.refresh endRefreshing];
}

#pragma mark - Table view data source

- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
    // Return the number of sections.
    return 1;
}

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
    // Return the number of rows in the section.
    return self.jobs.count;
}

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:@"UITableViewCell"];
    NSDictionary *jobDictionary = [self.jobs objectAtIndex:[indexPath row]];

    if (cell == nil) {
        cell = [[UITableViewCell alloc]initWithStyle:UITableViewCellStyleDefault reuseIdentifier:@"UITableViewCell"];
    }

    if (cell) {
        cell.backgroundColor = [UIColor clearColor];
        cell.textLabel.textColor = [UIColor blackColor];

        cell.textLabel.text = [jobDictionary objectForKey:@"job"];
    }

    return cell;
}

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
    NSDictionary *jobDictionary = [self.jobs objectAtIndex:[indexPath row]];

    JobDetailViewController *jobDetails = [[JobDetailViewController alloc]initWithNibName:@"JobDetailViewController" bundle:nil];
    jobDetails.jobName = [jobDictionary objectForKey:@"job"];

    NSDateFormatter *formatter = [[NSDateFormatter alloc]init];
    // [formatter setDateFormat:@"MM-dd-yyyy"];
    formatter.dateStyle = NSDateFormatterLongStyle;
    formatter.timeStyle = NSDateFormatterShortStyle;
    jobDetails.jobDate = [formatter stringFromDate:[jobDictionary objectForKey:@"date"]];

    jobDetails.objectId = [[self.objectIds objectAtIndex:indexPath.row]objectAtIndex:indexPath.row];
    jobDetails.assignedWorker = [jobDictionary objectForKey:@"worker"];
    jobDetails.details = [jobDictionary objectForKey:@"details"];

    [self.navigationController pushViewController:jobDetails animated:YES];
}

@end

#导入“UnassignedJobs.h”
#导入“AppDelegate.h”
#导入“NavController.h”
#导入“LogInViewController.h”
#导入“NewJobViewController.h”
#导入“JobDetailViewController.h”
#进口
@接口未分配作业（）
@属性（非原子，强）NSMutableArray*作业；
@属性（非原子，强）NSMutableArray*ObjectId；
@属性（非原子，强）UIActivityIndicatorView*加载指示器；
@属性（非原子，强）UIRefreshControl*刷新；
@结束
@未分配作业的实现
-（无效）viewDidLoad{
[超级视图下载]；
[self.tableView setDataSource:self]；
[self.tableView setDelegate:self]；
UIBarButtonItem*logoutButton=[[UIBarButtonItem alloc]initWithTitle:@“注销”样式：UIBarButtonItemStylePlain目标：自我操作：@selector（logoutPressed）]；
self.navigationItem.leftBarButtonItem=注销按钮；
UIBarButtonItem*newJobButton=[[UIBarButtonItem alloc]initWithBarButtonSystemItem:UIBarButtonSystemItemAddTarget:self action:@selector（createJob）]；
self.navigationItem.rightBarButtonItem=newJobButton；
NSString*currentUserFullName=[[PFUser currentUser]objectForKey:@“Name”]；
if（[currentUserFullName IseQualtString:@“Cory Pollard”]| |[currentUserFullName IseQualtString:@“Richie Ray”]））{
newJobButton.enabled=是；
}
否则{
newJobButton.enabled=否；
}
CGFloat width=CGRectGetWidth（self.view.bounds）；
CGFloat height=CGRectGetHeight（self.view.bounds）；
self.loadingIndicator=[[UIActivityIndicatorView alloc]initWithFrame:CGRectMake（宽度/2，高度/2，37，37）]；
self.loadingIndicator.center=CGPointMake（宽/2，高/2-37）；
self.loadingIndicator.autoresizingMask=（UIViewAutoresizingFlexibleRightMargin | uiviewautoresizingflexibleleleftmargin | uiviewautoresizingflexiblebtotommargin | uiviewautoresizingflexibleptopmargin | uiviewautoresizingflexibleptommargin；
self.loadingIndicator.activityIndicatorViewStyle=UIActivityIndicatorViewStyleGray；
self.loadingIndicator.hidesWhenStopped=是；
[self.view addSubview:self.loadingIndicator]；
[自加载指示器启动激活]；
[自谋职业]；
self.refresh=[[UIRefreshControl alloc]init]；
self.refresh.tintColor=[UIColor blackColor]；
[self.refresh addTarget:self action:@selector（refreshData）forControlEvents:UIControlEventValueChanged]；
self.refreshControl=self.refresh；
}
-（无效）视图显示：（BOOL）动画{
}
-（无效）未收到记忆警告{
[超级记忆警告]；
//处置所有可以重新创建的资源。
}
-（无效）获得工作{
self.jobs=[[NSMutableArray alloc]init]；
self.objectIds=[[NSMutableArray alloc]init]；
PFQuery*query=[PFQuery queryWithClassName:@“作业”]；
[查询设置限制：1000]；
[查询findObjectsInBackgroundWithBlock:^（NSArray*对象，NSError*错误）{
如果（！错误）{
for（对象中的NSDictionary*objectDictionary）{
NSString*assigned=[objectDictionary objectForKey:@“assigned”]；
如果（[分配的IsequalString:@“否”]）{
[self.jobs addObject:objectDictionary]；
//self.objectId=[objects valueForKeyPath:@“objectId”]；
}
for（int i=0；i#import "NewJobViewController.h"
#import "AppDelegate.h"
#import "NavController.h"
#import "TabController.h"
#import "UnassignedJobs.h"
#import "AssignedJobs.h"
#import "MyJobs.h"
#import "Users.h"
#import "CompletedJobs.h"
#import <Parse/Parse.h>

@interface NewJobViewController ()

@property (weak, nonatomic) IBOutlet UITextField *jobName;
@property (weak, nonatomic) IBOutlet UITextView *detailTextView;
@property (weak, nonatomic) IBOutlet UIDatePicker *datePicker;
@property (weak, nonatomic) IBOutlet UIButton *createJobButton;
@property (nonatomic, strong) NSDate *jobDate;
@property (nonatomic, strong) NSString *dateString;

@end

@implementation NewJobViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view from its nib.

    self.title = @"Create Job";

    UIBarButtonItem *cancelButton = [[UIBarButtonItem alloc]initWithTitle:@"Cancel" style:UIBarButtonItemStylePlain target:self action:@selector(cancel)];
    self.navigationItem.leftBarButtonItem = cancelButton;

    [self.datePicker addTarget:self action:@selector(updateDateString) forControlEvents:UIControlEventValueChanged];
}

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

- (void)returnToMainScreen {
    AppDelegate *appDelegate = (AppDelegate *)[[UIApplication sharedApplication]delegate];

    UnassignedJobs *unassignedJobs = [[UnassignedJobs alloc]initWithNibName:@"UnassignedJobs" bundle:nil];
    unassignedJobs.title = @"Unassigned";
    NavController *navController = [[NavController alloc]initWithRootViewController:unassignedJobs];
    navController.delegate = unassignedJobs;

    AssignedJobs *assignedJobs = [[AssignedJobs alloc]initWithNibName:@"AssignedJobs" bundle:nil];
    assignedJobs.title = @"Assigned";
    NavController *assignedNav = [[NavController alloc]initWithRootViewController:assignedJobs];
    assignedNav.delegate = assignedJobs;

    CompletedJobs *completed = [[CompletedJobs alloc]initWithNibName:@"CompletedJobs" bundle:nil];
    completed.title = @"Completed";
    NavController *completedNav = [[NavController alloc]initWithRootViewController:completed];
    completedNav.delegate = completed;

    MyJobs *myJobs = [[MyJobs alloc]initWithNibName:@"MyJobs" bundle:nil];
    myJobs.title = @"My Jobs";
    NavController *myNav = [[NavController alloc]initWithRootViewController:myJobs];
    myNav.delegate = myJobs;

    Users *userList = [[Users alloc]initWithNibName:@"Users" bundle:nil];
    userList.title = @"Users";
    NavController *userNav = [[NavController alloc]initWithRootViewController:userList];
    userNav.delegate = userList;

    TabController *tabController = [[TabController alloc]init];
    tabController.viewControllers = @[navController, assignedNav, completedNav, myNav, userNav];

    appDelegate.window.rootViewController = tabController;
}

- (void)updateDateString {
    NSDateFormatter *formatter = [[NSDateFormatter alloc]init];
    formatter.dateStyle = NSDateFormatterLongStyle;
    formatter.timeStyle = NSDateFormatterMediumStyle;
    self.dateString = [formatter stringFromDate:self.datePicker.date];
    self.jobDate = [formatter dateFromString:self.dateString];
}

- (IBAction)createJob:(id)sender {
    PFObject *job = [PFObject objectWithClassName:@"Jobs"];
    job[@"job"] = self.jobName.text;
    job[@"details"] = self.detailTextView.text;
    job[@"assigned"] = @"no";
    job[@"date"] = self.jobDate;
    [job saveInBackgroundWithBlock:^(BOOL succeeded, NSError *error) {
        if (succeeded) {
            // Close this window and return to unassigned jobs
            [self returnToMainScreen];
        }
        else {
            NSString *errorString = [[error userInfo] objectForKey:@"error"];
            UIAlertView *errorAlert = [[UIAlertView alloc]initWithTitle:@"Job could not be saved!" message:errorString delegate:self cancelButtonTitle:@"OK" otherButtonTitles:nil, nil];
            [errorAlert show];
        }
    }];
}

- (void)cancel {
    [self returnToMainScreen];
}

# pragma mark UITextView Delegate Methods

- (BOOL)textView:(UITextView *)textView shouldChangeTextInRange:(NSRange)range replacementText:(NSString *)text {

    if([text isEqualToString:@"\n"]) {
        [textView resignFirstResponder];
        return NO;
    }

    return YES;
}

# pragma mark UITextField Delegate Methods

- (BOOL)textFieldShouldReturn:(UITextField *)textField {
    [textField resignFirstResponder];
    return NO;
}

@end

@implementation UnassignedJobs ...
- (void)viewDidAppear:(BOOL)animated {
[self getJobs];
[self.table reloadData];
}

- (void)getJobs {
    [self.jobs removeAllObjects];
    [self.objectIds removeAllObjects];
    self.jobs = [[NSMutableArray alloc]init];
    self.objectIds = [[NSMutableArray alloc]init];
...}