所以我正在为我的一个朋友做点什么，而且我遇到了一些问题。我为每个武器类别提供了一系列文本和图像。应用程序运行良好，但后来我添加了图像，现在它只是崩溃了。看一看，如果您有什么想法，请告诉我。谢谢！
tableview.m
#import "TableViewController.h"
#import "TableCell.h"
@interface TableViewController ()
@end
@implementation TableViewController
- (id)initWithStyle:(UITableViewStyle)style
{
self = [super initWithStyle:style];
if ([self respondsToSelector:@selector(edgesForExtendedLayout)])
self.edgesForExtendedLayout = UIRectEdgeNone;
return self;
}
- (void)viewDidLoad
{
[super viewDidLoad];
_assault = @[@"SC-2010",
@"SA-805",
@"AK-12",
@"FAD",
@"Remington R5",
@"MSBS",
@"Honey Badger",
@"ARX-150",];
_smg= @[@"Bizon",
@"CBJ-MS",
@"Vector CRB",
@"Vepr",
@"K7",
@"MTAR-X",];
_lmg =@[@"Ameli",
@"M27-IAR",
@"LSAT",
@"Chain SAW",];
_marksman = @[@"MR-28",
@"MK14 EBR",
@"IA-2",
@"SVU",];
_snipers = @[@"USR",
@"L115",
@"Lynx",
@"VKS",];
_shotguns = @[@"Tac 12",
@"FP6",
@"MTS-225",
@"Bulldog",];
_handguns = @[@"M9",
@"Magnum",
@"MP-443",
@"P226",
@"PDW",];
_launchers = @[@"Kastet",
@"MK32",
@"Panzerfast",];
/////IMAGES/////
_assault1 = @[@"sc-2010.png",
@"sa-805.png",
@"ak12.png",
@"fad.png",
@"remmington.png",
@"msbs.png",
@"honey badger.png",
@"arx.png",];
_smg1= @[@"Bizon.png",
@"cbj",
@"ector.png",
@"vepr.png",
@"k7.png",
@"mtar-x.png",];
_lmg1 =@[@"ameli.png",
@"m27.png",
@"lsat.png",
@"chain saw.png",];
_marksman1 = @[@"mr-28.png",
@"mk14",
@"ia2.png",
@"svu.png",];
_snipers1 = @[@"usr.png",
@"l115.png",
@"lynx.png",
@"VKS.png",];
_shotguns1 = @[@"tac 12.png",
@"fp6.png",
@"mts-225",
@"bulldog.png",];
_handguns1 = @[@"m9.png",
@"magum.png",
@"mp.png",
@"p226.png",
@"pdw",];
_launchers1 = @[@"kastet.png",
@"mk32.png",
@"panzerfast.png",];
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
#pragma mark - Table view data source
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
return 8;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
if (section==0)
return _assault.count;
if (section==1)
return _smg.count;
if (section==2)
return _lmg.count;
if (section==3)
return _marksman.count;
if (section==4)
return _snipers.count;
if (section==5)
return _shotguns.count;
if (section==6)
return _handguns.count;
if (section==7)
return _launchers.count;
return 0;
}
- (NSString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section {
if(section == 0)
return @"Assault Rifles";
if(section==1)
return @"SMG";
if (section==2)
return @"LMG";
if (section==3)
return @"Marksman";
if (section==4)
return @"Sniper";
if (section==5)
return @"Shotguns";
if (section==6)
return @"Handguns";
if (section==7)
return @"Launchers";
return 0;
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier = @"TableCell";
TableCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
cell = [[TableCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:CellIdentifier];
}
int row = [indexPath row];
if (indexPath.section==0)
cell.TitleLabel.text = _assault[row];
cell.myImageView.image = [UIImage imageNamed:_assault1[row]];
if (indexPath.section==1)
cell.TitleLabel.text = _smg[row];
cell.myImageView.image = [UIImage imageNamed:_smg1[row]];
if (indexPath.section==2)
cell.TitleLabel.text = _lmg[row];
cell.myImageView.image = [UIImage imageNamed:_lmg1[row]];
if (indexPath.section==3)
cell.TitleLabel.text = _marksman[row];
cell.myImageView.image = [UIImage imageNamed:_marksman1[row]];
if (indexPath.section==4)
cell.TitleLabel.text = _snipers[row];
cell.myImageView.image = [UIImage imageNamed:_snipers1[row]];
if (indexPath.section==5)
cell.TitleLabel.text = _shotguns[row];
cell.myImageView.image = [UIImage imageNamed:_shotguns1[row]];
if (indexPath.section==6)
cell.TitleLabel.text = _handguns[row];
cell.myImageView.image = [UIImage imageNamed:_handguns1[row]];
if (indexPath.section==7)
cell.TitleLabel.text = _launchers[row];
cell.myImageView.image = [UIImage imageNamed:_launchers1[row]];
return cell;
}
- (BOOL)prefersStatusBarHidden
{
return YES;
}
@end
继承崩溃日志：
2014-02-09 18:29:43.286 Test[4248:70b] *** Terminating app due to uncaught exception 'NSRangeException', reason: '*** -[__NSArrayI objectAtIndex:]: index 3 beyond bounds [0 .. 2]'
*** First throw call stack:
(
0 CoreFoundation 0x0000000101894795 __exceptionPreprocess + 165
1 libobjc.A.dylib 0x00000001015f7991 objc_exception_throw + 43
2 CoreFoundation 0x000000010184d02f -[__NSArrayI objectAtIndex:] + 175
3 Ghosts Guide & Utility1 0x0000000100003451 -[TableViewController tableView:cellForRowAtIndexPath:] + 3265
4 UIKit 0x0000000100325b8a -[UITableView _createPreparedCellForGlobalRow:withIndexPath:] + 348
5 UIKit 0x000000010030d836 -[UITableView _updateVisibleCellsNow:] + 2297
6 UIKit 0x000000010031e381 -[UITableView layoutSubviews] + 207
7 UIKit 0x00000001002b5b27 -[UIView(CALayerDelegate) layoutSublayersOfLayer:] + 354
8 QuartzCore 0x0000000103dfba22 -[CALayer layoutSublayers] + 151
9 QuartzCore 0x0000000103df0589 _ZN2CA5Layer16layout_if_neededEPNS_11TransactionE + 363
10 QuartzCore 0x0000000103df040a _ZN2CA5Layer28layout_and_display_if_neededEPNS_11TransactionE + 24
11 QuartzCore 0x0000000103d65694 _ZN2CA7Context18commit_transactionEPNS_11TransactionE + 252
12 QuartzCore 0x0000000103d6670c _ZN2CA11Transaction6commitEv + 394
13 QuartzCore 0x0000000103d66d79 _ZN2CA11Transaction17observer_callbackEP19__CFRunLoopObservermPv + 89
14 CoreFoundation 0x000000010185fff7 __CFRUNLOOP_IS_CALLING_OUT_TO_AN_OBSERVER_CALLBACK_FUNCTION__ + 23
15 CoreFoundation 0x000000010185ff67 __CFRunLoopDoObservers + 391
16 CoreFoundation 0x000000010183f6d2 __CFRunLoopRun + 946
17 CoreFoundation 0x000000010183ef33 CFRunLoopRunSpecific + 467
18 GraphicsServices 0x000000010399b3a0 GSEventRunModal + 161
19 UIKit 0x000000010025a043 UIApplicationMain + 1010
20 test 0x0000000100001393 main + 115
21 libdyld.dylib 0x0000000101f235fd start + 1
22 ??? 0x0000000000000001 0x0 + 1
)
libc++abi.dylib: terminating with uncaught exception of type NSException
(lldb)
答案 0 :(得分：1)
我认为问题是缺少括号来正确定义if / else语句的范围。请参阅cellForRowAtIndexPath:
int row = [indexPath row];
if (indexPath.section==0)
cell.TitleLabel.text = _assault[row];
cell.myImageView.image = [UIImage imageNamed:_assault1[row]];
else ...
每次调用cellForRowAtIndexPath时都会运行此行，无论您的indexPath位于哪个部分：
cell.myImageView.image = [UIImage imageNamed:_assault1[row]];
在if / else条件中添加花括号，您将确保您所引用的行位于正确的部分。
答案 1 :(得分：0)
这次崩溃的原因：
[__NSArrayI objectAtIndex:]: index 3 beyond bounds [0 .. 2]
您是否正在尝试从某个数组中获取第四个对象（索引3处的对象），但此数组只有三个对象。我建议使用断点来发现这种情况发生的地点和原因。
我希望它有所帮助。