我已经找过其他类似的帖子了，但没有一个能解决我的问题。我收到这个错误：
*** Terminating app due to uncaught exception 'NSRangeException', reason: '*** -[__NSArrayI objectAtIndex:]: index 3 beyond bounds [0 .. 2]'
我在触摸侧面菜单按钮时使用菜单侧栏显示菜单选项。
这是我的代码：
#import "SidebarViewController.h"
#import "PhotoViewController.h"
#import "SWRevealViewController.h"
@interface SidebarViewController ()
@property (nonatomic, strong) NSArray *menuItems;
@end
@implementation SidebarViewController
- (id)initWithStyle:(UITableViewStyle)style
{
self = [super initWithStyle:style];
if (self) {
// Custom initialization
}
return self;
}
- (void)viewDidLoad
{
[super viewDidLoad];
self.view.backgroundColor = [UIColor colorWithWhite:0.2f alpha:1.0f];
self.tableView.backgroundColor = [UIColor colorWithWhite:0.2f alpha:1.0f];
self.tableView.separatorColor = [UIColor colorWithWhite:0.15f alpha:0.2f];
_menuItems = @[@"title", @"news", @"comments", @"map", @"calendar", @"wishlist", @"bookmark", @"tag"];
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
- (void) prepareForSegue: (UIStoryboardSegue *) segue sender: (id) sender
{
// Set the title of navigation bar by using the menu items
NSIndexPath *indexPath = [self.tableView indexPathForSelectedRow];
UINavigationController *destViewController = (UINavigationController*)segue.destinationViewController;
destViewController.title = [[_menuItems objectAtIndex:indexPath.row] capitalizedString];
// Set the photo if it navigates to the PhotoView
if ([segue.identifier isEqualToString:@"showPhoto"]) {
PhotoViewController *photoController = (PhotoViewController*)segue.destinationViewController;
NSString *photoFilename = [NSString stringWithFormat:@"%@_photo.jpg", [_menuItems objectAtIndex:indexPath.row]];
photoController.photoFilename = photoFilename;
}
if ( [segue isKindOfClass: [SWRevealViewControllerSegue class]] ) {
SWRevealViewControllerSegue *swSegue = (SWRevealViewControllerSegue*) segue;
swSegue.performBlock = ^(SWRevealViewControllerSegue* rvc_segue, UIViewController* svc, UIViewController* dvc) {
UINavigationController* navController = (UINavigationController*)self.revealViewController.frontViewController;
[navController setViewControllers: @[dvc] animated: NO ];
[self.revealViewController setFrontViewPosition: FrontViewPositionLeft animated: YES];
};
}
}
#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.menuItems count];
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
NSString *CellIdentifier = [self.menuItems objectAtIndex:indexPath.row];
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier forIndexPath:indexPath];
if (cell == nil) {
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier];
}
if (indexPath.section == 0) {
NSArray *titles = @[@"Home", @"Profile", @"Chats"];
cell.textLabel.text = titles[indexPath.row];
} else {
NSArray *titles = @[@"John Appleseed", @"John Doe", @"Test User"];
cell.textLabel.text = titles[indexPath.row];
}
return cell;
}
- (void)tableView:(UITableView *)tableView willDisplayCell:(UITableViewCell *)cell forRowAtIndexPath:(NSIndexPath *)indexPath
{
[cell setBackgroundColor:[UIColor colorWithWhite:0.2f alpha:1.0f]];
}
@end
这是Stack：
*** First throw call stack:
(
0 CoreFoundation 0x029ea1e4 __exceptionPreprocess + 180
1 libobjc.A.dylib 0x027698e5 objc_exception_throw + 44
2 CoreFoundation 0x0299e8b2 -[__NSArrayI objectAtIndex:] + 210
3 CoreFoundation 0x02a68f48 -[NSArray objectAtIndexedSubscript:] + 40
4 Trixel 0x00093fbc -[SidebarViewController tableView:cellForRowAtIndexPath:] + 572
5 UIKit 0x0131511f -[UITableView _createPreparedCellForGlobalRow:withIndexPath:] + 412
6 UIKit 0x013151f3 -[UITableView _createPreparedCellForGlobalRow:] + 69
7 UIKit 0x012f6ece -[UITableView _updateVisibleCellsNow:] + 2428
8 UIKit 0x0130b6a5 -[UITableView layoutSubviews] + 213
9 UIKit 0x0128b964 -[UIView(CALayerDelegate) layoutSublayersOfLayer:] + 355
10 libobjc.A.dylib 0x0277b82b -[NSObject performSelector:withObject:] + 70
11 QuartzCore 0x001e145a -[CALayer layoutSublayers] + 148
12 QuartzCore 0x001d5244 _ZN2CA5Layer16layout_if_neededEPNS_11TransactionE + 380
13 QuartzCore 0x001d50b0 _ZN2CA5Layer28layout_and_display_if_neededEPNS_11TransactionE + 26
14 QuartzCore 0x0013b7fa _ZN2CA7Context18commit_transactionEPNS_11TransactionE + 294
15 QuartzCore 0x0013cb85 _ZN2CA11Transaction6commitEv + 393
16 QuartzCore 0x001fa5b0 +[CATransaction flush] + 52
17 UIKit 0x0121a9bb _UIApplicationHandleEventQueue + 13095
18 CoreFoundation 0x0297377f __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 15
19 CoreFoundation 0x0297310b __CFRunLoopDoSources0 + 235
20 CoreFoundation 0x029901ae __CFRunLoopRun + 910
21 CoreFoundation 0x0298f9d3 CFRunLoopRunSpecific + 467
22 CoreFoundation 0x0298f7eb CFRunLoopRunInMode + 123
23 GraphicsServices 0x03dc75ee GSEventRunModal + 192
24 GraphicsServices 0x03dc742b GSEventRun + 104
25 UIKit 0x0121cf9b UIApplicationMain + 1225
26 Trixel 0x000a0b8d main + 141
27 libdyld.dylib 0x039e06d9 start + 1
)
libc++abi.dylib: terminating with uncaught exception of type NSException
(lldb)
答案 0 :(得分：3)
在您的cellForRowAtIndexPath中，您的代码需要2个部分，而您将返回一个部分
进行以下更改
- (void)viewDidLoad {
//your code
//section1 and 2 are ivars of type NSSArray
section1 = @[@"Home", @"Profile", @"Chats"];
section2 = @[@"John Appleseed", @"John Doe", @"Test User"];
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
// Return the number of rows in the section.
if (section == 0) {
{
return [section1 count];
}
else {
return [section2 count];
}
}
并在cellForRowAtIndexPath
if (indexPath.section == 0) {
cell.textLabel.text = section1[indexPath.row];
} else {
cell.textLabel.text = section2[indexPath.row];
}
答案 1 :(得分：0)
所以我能够解决问题。当你注意到问题所在的时候，它点击了我，我编码的内容并不正确，并且超越了我自己。所以我删除了cellForRowAtIndexPath：
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
NSString *CellIdentifier = [self.menuItems objectAtIndex:indexPath.row];
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier forIndexPath:indexPath];
if (cell == nil) {
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier];
}
if (indexPath.section == 0) {
NSArray *titles = @[@"Home", @"Profile", @"Chats"];
cell.textLabel.text = titles[indexPath.row];
} else {
NSArray *titles = @[@"John Appleseed", @"John Doe", @"Test User"];
cell.textLabel.text = titles[indexPath.row];
}
return cell;
}
我将其替换为以下内容：
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
NSString *CellIdentifier = [self.menuItems objectAtIndex:indexPath.row];
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier forIndexPath:indexPath];
return cell;
}
谢谢你的帮助！ ：D真的很欣赏它。我正在构建一个侧面菜单，并试图包含一个显示在线用户的菜单。