我收到了第一份崩溃报告，但我无法解决问题所在。 幸运的是，由于此次崩溃来自我的同事，我可以直接在他的iPhone上测试错误并在手机上安装开发版本。
然而，奇怪的是，当我从我的计算机上安装并运行其设备上的开发版本时，没有崩溃; 仅在从App Store下载并安装应用程序时才会出现崩溃。 到目前为止，我无法在任何其他设备上重现错误（受影响的设备是iPhone 3G固件4.2.1，所有操作系统运行速度都非常慢）。
在从UITableViewController（ItemsListTableViewController）中选择一行之后发生崩溃，此时应该出现一个详细视图，但是在构建详细视图（ ItemDetailViewController ）期间应用程序崩溃了的 viewDidLoad中
特别是问题似乎是在LocationPathView类（ItemDetailViewController视图的子视图）中进行了本地化。 ItemDetailViewController是UITableViewController的子类，并在viewDidLoad中从nib加载其tableHeaderView： [[NSBundle mainBundle] loadNibNamed：@“ItemDetailHeaderView”owner：self options：nil]; （ LocationPathView是tableHeaderView 的一部分）
加载nib文件时，调用LocationPathView :: awakeFromNib，然后调用LocationPathView :: layoutSubviews。崩溃似乎源于layoutSubviews。 在layoutSubviews中，我执行动画： [UIView beginAnimations：nil context：nil]; [UIView setAnimationDuration：0.2]; 这个动画可能因某些原因造成慢速设备崩溃吗？在layoutSubviews中动画是否正确？
如果有任何帮助，我将不胜感激 马可
Date/Time: 2011-04-30 12:50:36.972 +0200
OS Version: iPhone OS 4.2.1 (8C148)
Report Version: 104
Exception Type: EXC_CRASH (SIGABRT)
Exception Codes: 0x00000000, 0x00000000
Crashed Thread: 0
Thread 0 Crashed:
0 libSystem.B.dylib 0x35de3ad0 __kill + 8
1 libSystem.B.dylib 0x35de3abe kill + 4
2 libSystem.B.dylib 0x35de3ab2 raise + 10
3 libSystem.B.dylib 0x35dfad5e abort + 54
4 libstdc++.6.dylib 0x374f2a00 __gnu_cxx::__verbose_terminate_handler() + 588
5 libobjc.A.dylib 0x32d9d8d8 _objc_terminate + 160
6 libstdc++.6.dylib 0x374f0100 __cxxabiv1::__terminate(void (*)()) + 76
7 libstdc++.6.dylib 0x374f0178 std::terminate() + 16
8 libstdc++.6.dylib 0x374f02a0 __cxa_throw + 100
9 libobjc.A.dylib 0x32d9bf28 objc_exception_throw + 104
10 CoreFoundation 0x3759dabc +[NSException raise:format:arguments:] + 64
11 CoreFoundation 0x3759daf0 +[NSException raise:format:] + 24
12 QuartzCore 0x33d9409c CALayerSetPosition(CALayer*, CA::Vec2<double> const&, bool) + 180
13 QuartzCore 0x33d93fd8 -[CALayer setPosition:] + 40
14 QuartzCore 0x33d93efc -[CALayer setFrame:] + 444
15 UIKit 0x358d92c8 -[UIView(Geometry) setFrame:] + 248
16 UIKit 0x3592dde0 -[UIButton setFrame:] + 120
17 MyApp 0x0003432a -[LocationPathView layoutSubviews] (LocationPathView.m:101) <<<<<<<<<<<<<<<<<<<<<<<<<<<
18 UIKit 0x358ec704 -[UIView(CALayerDelegate) layoutSublayersOfLayer:] + 32
19 CoreFoundation 0x37538f72 -[NSObject(NSObject) performSelector:withObject:] + 18
20 QuartzCore 0x33d9a128 -[CALayer layoutSublayers] + 176
21 QuartzCore 0x33d99db0 CALayerLayoutIfNeeded + 192
22 QuartzCore 0x33d99cd8 -[CALayer layoutIfNeeded] + 108
23 UIKit 0x3598ee38 -[UIView(Hierarchy) layoutIfNeeded] + 24
24 UIKit 0x359fbabc -[UIButton titleLabel] + 76
25 MyApp 0x0001fee8 -[ItemDetailViewController viewDidLoad] (ItemDetailViewController.m:148) <<<<<<<<<<<<<<<<<<<<<<<<<<<
26 UIKit 0x35926e58 -[UIViewController view] + 152
27 UIKit 0x35937f2c -[UIViewController contentScrollView] + 24
28 UIKit 0x35937d4c -[UINavigationController _computeAndApplyScrollContentInsetDeltaForViewController:] + 36
29 UIKit 0x35937bf8 -[UINavigationController _layoutViewController:] + 28
30 UIKit 0x35937474 -[UINavigationController _startTransition:fromViewController:toViewController:] + 336
31 UIKit 0x35937288 -[UINavigationController _startDeferredTransitionIfNeeded] + 256
32 UIKit 0x35926c44 -[UINavigationController pushViewController:transition:forceImmediate:] + 904
33 UIKit 0x359268a8 -[UINavigationController pushViewController:animated:] + 36
34 MyApp 0x00020a9a -[ItemsListTableViewController viewItemDetail:startEditable:] (ItemsListTableViewController.m:717)
35 MyApp 0x00022110 -[ItemsListTableViewController tableView:didSelectRowAtIndexPath:] (ItemsListTableViewController.m:241) <<<<<<<<<<<<<<<<<<<<<<<<<<<
36 UIKit 0x3595bf4c -[UITableView _selectRowAtIndexPath:animated:scrollPosition:notifyDelegate:] + 884
37 UIKit 0x35a5da9c -[UITableView _userSelectRowAtPendingSelectionIndexPath:] + 196
38 Foundation 0x351724d4 __NSFireDelayedPerform + 360
39 CoreFoundation 0x375522fe __CFRUNLOOP_IS_CALLING_OUT_TO_A_TIMER_CALLBACK_FUNCTION__ + 10
40 CoreFoundation 0x37551cd2 __CFRunLoopDoTimer + 982
41 CoreFoundation 0x37521a8a __CFRunLoopRun + 1178
42 CoreFoundation 0x37521504 CFRunLoopRunSpecific + 220
43 CoreFoundation 0x37521412 CFRunLoopRunInMode + 54
44 GraphicsServices 0x33e76d1c GSEventRunModal + 188
45 UIKit 0x3591d574 -[UIApplication _run] + 580
46 UIKit 0x3591a550 UIApplicationMain + 964
47 MyApp 0x00002fce main (main.m:14)
48 MyApp 0x00002f98 0x1000 + 8088
ItemsListTableViewController.m：
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
Item *item = [self.fetchedResultsController objectAtIndexPath:indexPath];
[self viewItemDetail:item startEditable:NO]; <<<<<<<<<<<<<<<<<<<
}
- (void)viewItemDetail:(Item *)item startEditable:(BOOL)editable {
ItemDetailViewController *controller = [[ItemDetailViewController alloc] initWithStyle:UITableViewStyleGrouped showItem:item inItemsList:[self.fetchedResultsController fetchedObjects]];
if (editable)
controller.editing = YES;
[self.navigationController pushViewController:controller animated:YES]; <<<<<<<<<<<<<<<<<<<
[controller release];
}
ItemDetailViewController.m：
- (void)viewDidLoad {
[super viewDidLoad];
self.navigationItem.title = NSLocalizedString(@"Item details", @"Item details");
self.navigationItem.rightBarButtonItem = self.editButtonItem;
self.view.backgroundColor = [UIColor groupTableViewBackgroundColor];
// Configure the tableview
self.tableView.sectionFooterHeight = 5.0f;
self.tableView.allowsSelectionDuringEditing = YES;
// Create and set the tableview header
if (headerView == nil) {
[[NSBundle mainBundle] loadNibNamed:@"ItemDetailHeaderView" owner:self options:nil]; <<<<<<<<<<<<<<<<<<<<<<<<<<<
// Item title button
itemTitleButton.titleLabel.adjustsFontSizeToFitWidth = YES;
itemTitleButton.titleLabel.minimumFontSize = 11.0f;
[itemTitleButton setImageEdgeInsets:UIEdgeInsetsMake(0.0f, itemTitleButton.bounds.size.width-29.0f, 0.0f, 0.0f)];
[itemTitleButton setTitleEdgeInsets:UIEdgeInsetsMake(0.0f, 0.0f, 0.0f, 24.0f)];
UIImage *normalImage = [[UIImage imageNamed:@"objectNameHighlighedButton.png"] stretchableImageWithLeftCapWidth:11 topCapHeight:0];
[self.itemTitleButton setBackgroundImage:normalImage forState:UIControlStateHighlighted];
[pathView addTarget:self action:@selector(moveButtonTouchUp:) forControlEvents:UILocationPathViewMoveControlEvent];
// Check if the item's path should be recalculated
if (pathView.pathList == nil) {
pathView.pathList = pathNames;
}
self.tableView.tableHeaderView = headerView;
// Save initial header height so that it can be restore navigating between items with different flags count
tableHeaderFrameHeight = headerView.frame.size.height;
}
// Enable the UIToolbar at the bottom of the view controller and create its buttons
[self.navigationController setToolbarHidden:NO animated:YES];
self.navigationController.toolbar.barStyle = UIBarStyleBlack;
self.navigationController.toolbar.translucent = YES;
// [omitted part]: create toolbar items …
// Restore editing status if the view was unloaded
if (viewUnloaded && self.editing) {
viewUnloaded = NO;
// this will force setEditing:YES to be called on all tableView's subviews! (categorySectionHeaderView...)
[self.tableView setEditing:YES];
// ...not for tableheader!
editableImageView.editing = YES;
pathView.editing = YES;
}
// Recreate item flags
CGRect headerFrame = headerView.frame;
for (FlaggedItem *flagObject in self.itemBookmarkRibbons) {
headerFrame.size.height += ITEM_SHEET_FLAG_BUTTON_HEIGHT + 8.0f;
headerView.frame = headerFrame;
UIButton *bookmarkRibbon = [self createBookmarkRibbon:flagObject];
bookmarkRibbon.frame = CGRectMake(0.0f, headerFrame.size.height-ITEM_SHEET_FLAG_BUTTON_HEIGHT-8.0f,
headerFrame.size.width, ITEM_SHEET_FLAG_BUTTON_HEIGHT);
[headerView addSubview:bookmarkRibbon];
[headerView sendSubviewToBack:bookmarkRibbon];
}
// Update the table header view height
self.tableView.tableHeaderView = headerView;
}
LocationPathView.m：
- (void)awakeFromNib {
[super awakeFromNib];
UIColor *color = [[UIColor alloc] initWithWhite:0.0f alpha:0.0f];
self.backgroundColor = color;
[color release];
[self sendSubviewToBack:backgroundView];
// create imageview rounded rect
CALayer *l = [backgroundView layer];
[l setMasksToBounds:YES];
[l setCornerRadius:10.0];
[l setBorderWidth:2.0];
UIColor *borderColor = [[UIColor alloc] initWithWhite:0.65 alpha:1.0];
[l setBorderColor:[borderColor CGColor]];
[borderColor release];
expanded = NO;
buttons = [[NSMutableArray alloc] initWithCapacity:2];
[buttons addObject:[self createButtonOfType:PVButtonTypeStart]];
[buttons addObject:[self createButtonOfType:PVButtonTypeEnd]];
}
- (void)layoutSubviews {
#define MOVE_BUTTON_WIDTH 90.0f
#define STANDARD_BUTTON_HEIGHT 22.0f
[super layoutSubviews];
CGRect contentRect = self.frame;
if (CGRectIsEmpty(contentRect))
return;
if ([buttons count] != [pathList count] && [pathList count] > 0) {
[self prepareButtons];
}
[UIView beginAnimations:nil context:nil]; <<<<<<<<<<<<<<<<<<<
[UIView setAnimationDuration:0.2];
CGFloat x = 0.0f, y = 0.0f;
CGFloat availableHSpace = 0.0f;
UIButton *button;
for (NSUInteger i=0; i<[self.buttons count]; i++) {
button = [buttons objectAtIndex:i];
if (self.isExpanded == NO && i > 0 && i <= [self.buttons count]-2)
// hide all middle buttons
button.alpha = 0.0f;
else {
button.alpha = 1.0f;
NSString *title = [pathList objectAtIndex:i];
CGSize size = [title sizeWithFont:button.titleLabel.font];
CGFloat buttonWidth = size.width + 36.0f;
// check if the button width is greater than available space, if yes set the button width equal to the available space.
// The available space is reduced in editing move to make room for the move button.
if (self.editing && moveButton)
availableHSpace = contentRect.size.width - MOVE_BUTTON_WIDTH - 3.0f - 10.0f; // 10.0=space from move button
else
availableHSpace = contentRect.size.width;
if (x + buttonWidth > availableHSpace)
buttonWidth = availableHSpace - x;
button.frame = CGRectMake(x, y, buttonWidth, STANDARD_BUTTON_HEIGHT);
[button setTitle:title forState:UIControlStateNormal];
y += STANDARD_BUTTON_HEIGHT + 3.0f; // vertical distance between buttons
}
if (self.isExpanded)
x += 14.0f; // indentation
}
// setup cyan background
backgroundView.alpha = (self.isExpanded ? 0.80f : 0.0f);
CGRect backgroundViewFrame = backgroundView.frame;
if (self.isExpanded) {
// 10.0 = 5.0=y gap between backgroundView and self + 5.0=distance between edge
backgroundViewFrame.size.height = button.frame.origin.y + button.frame.size.height + 12.0f;
}
else
backgroundViewFrame.size.height = self.frame.size.height;
backgroundView.frame = backgroundViewFrame;
[UIView commitAnimations];
// set moveButton position and make it visible (put it out of animation block to avoid frame changing animation,
// fade animation already set from caller)
if (self.editing && moveButton) {
moveButton.frame = CGRectMake(0.0f, 0.0f, MOVE_BUTTON_WIDTH, STANDARD_BUTTON_HEIGHT*2 + 3.0f); // 3.0=vertical space between buttons
moveButton.center = CGPointMake(contentRect.size.width - MOVE_BUTTON_WIDTH/2 - 3.0f, contentRect.size.height/2);
moveButton.hidden = NO;
}
}
答案 0 :(得分：1)
仅作为错误，应用商店版本让我怀疑用于构建提交二进制文件的项目或目标设置。
您是否使用项目配置来构建提交二进制文件？如果是这样，我要寻找的第一件事就是发布版本的C宏定义不正确。或者它可能在项目级别是正确的，但在目标级别不正确。也许动画块的结尾没有正确发出信号？
使用与应用商店版本完全相同的设置构建应用的临时版本将是一个很好的测试。 （代码签名将是唯一的区别。）从设备中删除旧应用程序并通过iTunes进行硬盘部署以确保。
答案 1 :(得分：0)
可能是你的动画块阻挡了后面运行的主过渡。尽量避免这种情况。例如popAviewController，在推送另一个之后，这种情况导致崩溃，因为你在前一个完成之前正在进行另一个转换。希望你明白。