嘿:)所以我一直在编写一个我希望在App Store上可用的应用程序。但是，我已经提交了两次关于在iPad上播放应用程序时崩溃的拒绝（对于两个提交都运行7.0.6和7.1）。该应用程序可以在我的手机和我母亲的iPad上以及所有模拟器上完美运行。我还查看了崩溃日志（此处发布的相关信息）：
Date/Time: 2014-03-15 14:29:04.504 -0700
OS Version: iOS 7.1 (11D167)
Report Version: 104
Exception Type: EXC_CRASH (SIGABRT)
Exception Codes: 0x0000000000000000, 0x0000000000000000
Triggered by Thread: 0
Last Exception Backtrace:
0 CoreFoundation 0x182fb6950 __exceptionPreprocess + 132
1 libobjc.A.dylib 0x18f9901fc objc_exception_throw + 60
2 CoreFoundation 0x182ec0c7c -[__NSPlaceholderDictionary initWithObjects:forKeys:count:] + 396
3 CoreFoundation 0x182ec0ac4 +[NSDictionary dictionaryWithObjects:forKeys:count:] + 72
4 Water Balloon 0x1000b0be4 -[WBLogic updateScoreboard:] (WBLogic.m:406)
5 Water Balloon 0x1000b0598 -[WBLogic checkCollision:] (WBLogic.m:341)
6 Water Balloon 0x1000aff10 -[WBLogic update] (WBLogic.m:231)
7 SpriteKit 0x185e47fb0 -[SKView(Private) _update:] + 236
8 SpriteKit 0x185e45ab0 -[SKView renderCallback:] + 876
9 SpriteKit 0x185e43794 __29-[SKView setUpRenderCallback]_block_invoke + 76
10 SpriteKit 0x185e62a90 -[SKDisplayLink _callbackForNextFrame:] + 288
11 QuartzCore 0x185bbccbc CA::Display::DisplayLinkItem::dispatch() + 36
12 QuartzCore 0x185bbcac8 CA::Display::DisplayLink::dispatch_items(unsigned long long, unsigned long long, unsigned long long) + 300
13 IOKit 0x183eb7e74 IODispatchCalloutFromCFMessage + 364
14 CoreFoundation 0x182f682e0 __CFMachPortPerform + 192
15 CoreFoundation 0x182f76890 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE1_PERFORM_FUNCTION__ + 56
16 CoreFoundation 0x182f767f0 __CFRunLoopDoSource1 + 444
17 CoreFoundation 0x182f74a14 __CFRunLoopRun + 1620
18 CoreFoundation 0x182eb56d0 CFRunLoopRunSpecific + 452
19 GraphicsServices 0x188b51c0c GSEventRunModal + 168
20 UIKit 0x185fe6fdc UIApplicationMain + 1156
21 Water Balloon 0x1000b1c38 main (main.m:16)
22 libdyld.dylib 0x18ff83aa0 start + 4
Thread 0 name: Dispatch queue: com.apple.main-thread
Thread 0 Crashed:
0 libsystem_kernel.dylib 0x000000019007e58c __pthread_kill + 8
1 libsystem_c.dylib 0x0000000190012804 abort + 108
2 libc++abi.dylib 0x000000018f238990 abort_message + 84
3 libc++abi.dylib 0x000000018f255c28 default_terminate_handler() + 296
4 libobjc.A.dylib 0x000000018f9904d0 _objc_terminate() + 124
5 libc++abi.dylib 0x000000018f253164 std::__terminate(void (*)()) + 12
6 libc++abi.dylib 0x000000018f252a7c __cxa_throw + 132
7 libobjc.A.dylib 0x000000018f990314 objc_exception_throw + 340
8 QuartzCore 0x0000000185bbcd7c CA::Display::DisplayLinkItem::dispatch() + 228
9 QuartzCore 0x0000000185bbcac4 CA::Display::DisplayLink::dispatch_items(unsigned long long, unsigned long long, unsigned long long) + 296
10 IOKit 0x0000000183eb7e70 IODispatchCalloutFromCFMessage + 360
11 CoreFoundation 0x0000000182f682dc __CFMachPortPerform + 188
12 CoreFoundation 0x0000000182f7688c __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE1_PERFORM_FUNCTION__ + 52
13 CoreFoundation 0x0000000182f767ec __CFRunLoopDoSource1 + 440
14 CoreFoundation 0x0000000182f74a10 __CFRunLoopRun + 1616
15 CoreFoundation 0x0000000182eb56cc CFRunLoopRunSpecific + 448
16 GraphicsServices 0x0000000188b51c08 GSEventRunModal + 164
17 UIKit 0x0000000185fe6fd8 UIApplicationMain + 1152
18 Water Balloon 0x00000001000b1c34 main (main.m:16)
19 libdyld.dylib 0x000000018ff83a9c start + 0
通常情况下，崩溃日志可用于指出崩溃发生的位置，这会导致崩溃发生的原因，但406行只指向代码中的这一行：
scorelabel.position = CGPointMake(width/2, height/2 + 150);
这一行的整个方法是：
- (void) updateScoreboard:(BOOL) on
{
if(on)
{
int w = scoreboard.size.width;
int h = scoreboard.size.height;
if(score > highScore)
{
highScore = score;
[[NSUserDefaults standardUserDefaults] setObject:[NSNumber numberWithInt:highScore] forKey:@"HighScore"];
}
[highScorelabel setText:[NSString stringWithFormat:@"High Score: %i", highScore]];
CGSize defs;
CGSize ss;
CGSize hs;
defs = [@"Score: 1" sizeWithAttributes:@{NSFontAttributeName: [UIFont fontWithName:@"04b_19" size:scorelabel.fontSize]}];
ss = [[scorelabel text] sizeWithAttributes:@{NSFontAttributeName:[UIFont fontWithName:@"04b_19" size:scorelabel.fontSize]}];
hs = [[highScorelabel text] sizeWithAttributes:@{NSFontAttributeName:[UIFont fontWithName:@"04b_19" size:highScorelabel.fontSize]}];
scorelabel.position = CGPointMake(width/2 - w/4 - defs.width/2 + ss.width/2, scoreboard.position.y + h/4);
highScorelabel.position = CGPointMake((scorelabel.position.x - ss.width/2) + hs.width/2, scorelabel.position.y - ss.height/2 - hs.height/2);
}
else
{
scorelabel.position = CGPointMake(width/2, height/2 + 150);
}
[scoreboard setHidden:!on];
[taplabel setHidden:!on];
[highScorelabel setHidden:!on];
}
我不知道问题是什么......请帮我找出该应用导致他们的iPad崩溃的原因。
编辑在回复评论时，身高和宽度的确定如下：
width = scene.frame.size.width;
height = scene.frame.size.height;
哪个在- (id) init: (SKScene *) s。另外，我刚刚发现我的应用程序一直运行的时间是从NSObject继承的逻辑场景，而不是SKScene ...这可能会产生影响（当我测试时应用程序运行相同）。
答案 0 :(得分：4)
符号化报告中的实际代码行可能会被某些行关闭。从上面报告的行开始，您实际上创建了字典，并且在创建字典时由于异常导致崩溃，很可能发生了崩溃。那里。
所以有问题的行是：
defs = [@"Score: 1" sizeWithAttributes:@{NSFontAttributeName: [UIFont fontWithName:@"04b_19" size:scorelabel.fontSize]}];
ss = [[scorelabel text] sizeWithAttributes:@{NSFontAttributeName:[UIFont fontWithName:@"04b_19" size:scorelabel.fontSize]}];
hs = [[highScorelabel text] sizeWithAttributes:@{NSFontAttributeName:[UIFont fontWithName:@"04b_19" size:highScorelabel.fontSize]}];
字典总是一样的：
@{NSFontAttributeName:[UIFont fontWithName:@"04b_19" size:highScorelabel.fontSize]}
因此，作为第一步，您应该为该字典创建一个局部变量并重新使用它。
现在，在创建字典时会导致崩溃，因为我们必须在此处猜测崩溃报告中缺少异常消息。一种选择是您尝试将密钥设置为nil值。那么什么时候[UIFont fontWithName:@"04b_19" size:highScorelabel.fontSize]可以为零？
文档并没有真正说明，但我认为如果找不到具有给定名称的字体，就会发生这种情况。因此，您应该检查字体是否真的是您提交给Apple的应用程序包的一部分。然后检查fontName属性是否设置为也适用于设备的正确值。文档说：
字体的完全指定名称。此名称包含字体系列名称和字体的特定样式信息
这个帖子可以提供一个在这种情况下可能出错的想法：Crash with exception attempt to insert nil object from objects[0]