异常'NSRangeException',原因:'*** -[__NSArrayM objectAtIndex:]:索引 19 超出范围 [0 .. 18]'

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【中文标题】异常\'NSRangeException\',原因:\'*** -[__NSArrayM objectAtIndex:]:索引 19 超出范围 [0 .. 18]\'【英文标题】:Exception 'NSRangeException', reason: '*** -[__NSArrayM objectAtIndex:]: index 19 beyond bounds [0 .. 18]'异常'NSRangeException',原因:'*** -[__NSArrayM objectAtIndex:]:索引 19 超出范围 [0 .. 18]' 【发布时间】:2014-03-07 20:31:05 【问题描述】:

我已经寻找过其他类似的帖子,但没有一个可以解决我的问题。我收到此错误:

*** Terminating app due to uncaught exception 'NSRangeException', reason: '*** -[__NSArrayM objectAtIndex:]: index 19 beyond bounds [0 .. 18]'

我正在使用搜索栏和显示控制器从 PARSE.COM 数据库中获取数据。

这是我的代码:

#import "busquedaViewController.h"

@interface busquedaViewController ()

@end

@implementation busquedaViewController

@synthesize totaldetalles;
@synthesize resultados;
@synthesize busquedaTableView;

- (id)initWithStyle:(UITableViewStyle)style

    self = [super initWithStyle:style];
    if (self) 
        // Custom initialization
    
    return self;


- (void)viewDidLoad

    [super viewDidLoad];

    // Uncomment the following line to preserve selection between presentations.
    // self.clearsSelectionOnViewWillAppear = NO;

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



-(void)viewWillAppear:(BOOL)animated

    [super viewWillAppear:animated];

   // [self.activityIndicatorView startAnimating];


- (void)filterContentForSearchText:(NSString*)searchText scope:(NSString*)scope

   // [self.resultados removeAllObjects];
    PFQuery *busqueda = [PFQuery queryWithClassName:@"icd_detalle"];
    [busqueda whereKey:@"DESC_ES" containsString:[searchText uppercaseString]];
    [busqueda findObjectsInBackgroundWithBlock:^(NSArray *results, NSError *error) 
        if(!error)
            resultados = [[NSMutableArray alloc] initWithArray:results];
            NSLog(@"ACA LA DATA YA FILTRADA ...%@ ... TADA", resultados);
         else 
            NSLog(@"error en la busqueda");
        
    ];


 -(BOOL)searchDisplayController:(UISearchDisplayController *)controller shouldReloadTableForSearchString:(NSString *)searchString

    [self filterContentForSearchText:searchString
                               scope:[[self.searchDisplayController.searchBar scopeButtonTitles]
                                      objectAtIndex:[self.searchDisplayController.searchBar
                                                     selectedScopeButtonIndex]]];

    return YES;


- (void)didReceiveMemoryWarning

    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.


#pragma mark - Table view data source

- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView

        return 1;



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

    if (tableView == self.tableView)
        return 1;
     else 
        return self.resultados.count;
   


- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath

    return 80;

- (void)callbackLoadObjectsFromParse:(NSArray *)results error:(NSError *)error 
    if (!error) 
        [self.resultados removeAllObjects];

        [self.resultados addObjectsFromArray:results];
        [self.searchDisplayController.searchResultsTableView reloadData];
     else 
        NSLog(@"error: %@ %@", error, [error userInfo]);
    


- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath

    static NSString *Identifier =@"bus1";

    busquedaCell *cell = (busquedaCell *)[self.tableView dequeueReusableCellWithIdentifier:Identifier];
  // busquedaCell *cell = [tableView dequeueReusableCellWithIdentifier:Identifier];

    if (cell == nil)
        cell= [[busquedaCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:Identifier];
    

    if (tableView == self.tableView) 
        cell.busquedaDESC.text = @"Introdusca Busqueda";
     else if (tableView == self.searchDisplayController.searchResultsTableView) 
        PFObject *tempDict = [self.resultados objectAtIndex:indexPath.row];
    cell.busquedaDESC.text = [tempDict objectForKey:@"DESC_ES"];
    cell.busquedaCode.text = [tempDict objectForKey:@"COD_4"];
   // [self.activityIndicatorView stopAnimating];

    
    return cell;

@end

这是堆栈:

*** First throw call stack:
(
    0   CoreFoundation                      0x00000001028ac795 __exceptionPreprocess + 165
    1   libobjc.A.dylib                     0x000000010260f991 objc_exception_throw + 43
    2   CoreFoundation                      0x00000001028528e5 -[__NSArrayM objectAtIndex:] + 213
    3   icd2                                0x0000000100006956 -[busquedaViewController tableView:cellForRowAtIndexPath:] + 614
    4   UIKit                               0x0000000100df6b8a -[UITableView _createPreparedCellForGlobalRow:withIndexPath:] + 348
    5   UIKit                               0x0000000100dde836 -[UITableView _updateVisibleCellsNow:] + 2297
    6   UIKit                               0x0000000100def381 -[UITableView layoutSubviews] + 207
    7   UIKit                               0x0000000100d86b27 -[UIView(CALayerDelegate) layoutSublayersOfLayer:] + 354
    8   QuartzCore                          0x000000010098ba22 -[CALayer layoutSublayers] + 151
    9   QuartzCore                          0x0000000100980589 _ZN2CA5Layer16layout_if_neededEPNS_11TransactionE + 363
    10  QuartzCore                          0x000000010098040a _ZN2CA5Layer28layout_and_display_if_neededEPNS_11TransactionE + 24
    11  QuartzCore                          0x00000001008f5694 _ZN2CA7Context18commit_transactionEPNS_11TransactionE + 252
    12  QuartzCore                          0x00000001008f670c _ZN2CA11Transaction6commitEv + 394
    13  QuartzCore                          0x00000001009ae3bf _ZN2CA7Display11DisplayLink14dispatch_itemsEyyy + 485
    14  CoreFoundation                      0x000000010286ee24 __CFRUNLOOP_IS_CALLING_OUT_TO_A_TIMER_CALLBACK_FUNCTION__ + 20
    15  CoreFoundation                      0x000000010286e9a2 __CFRunLoopDoTimer + 962
    16  CoreFoundation                      0x000000010285796e __CFRunLoopRun + 1614
    17  CoreFoundation                      0x0000000102856f33 CFRunLoopRunSpecific + 467
    18  GraphicsServices                    0x00000001045833a0 GSEventRunModal + 161
    19  UIKit                               0x0000000100d2b043 UIApplicationMain + 1010
    20  icd2                                0x00000001000051a3 main + 115
    21  libdyld.dylib                       0x00000001032135fd start + 1
)
libc++abi.dylib: terminating with uncaught exception of type NSException

【问题讨论】:

你从哪个方法得到这个异常? 很明显,您正在访问数组末尾之外的索引 1。错误发生在哪一行?请记住,数组以索引 0 开始,以长度为负 1 的索引结束。您正在尝试访问具有 19 个元素的对象的索引 19,因此最后一个有效索引是 18。 你读过错误信息吗?? (以及异常堆栈跟踪在哪里?异常发生在哪里??) 我刚刚添加了堆栈。它发生在搜索完成并且我向下滚动时。我有时会发生,但并非总是如此。 @charliemolain 你的问题有解决方案吗? 【参考方案1】:

此异常是因为您更新了findObjectsInBackgroundWithBlock 中的数组,但tableView 正在主线程callbackLoadObjectsFromParse 上更新。

tableView19 行,但数组只有 18

【讨论】:

我只是“评论”了 callbackLoadObjectsFromParse,我得到了同样的错误。我认为是因为索引的数量,但是,如果我从“结果”数组中拖动它,我不明白为什么它会有所不同。 太棒了!它必须与 **findoObjectsinBrackgroundWithTarget 一起使用。现在我无法在 tableview 中显示数据,但我想那是另一个问题。

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