“未能及时恢复”在 3.2 iPad 上？

Question

最近，我升级了 iPad 应用程序的代码以支持 iOS 4.0。我刚刚在我的 AppDelegate 中添加了以下方法，其中没有实际代码：

• applicationWillEnterForeground:
• applicationDidBecomeActive:
• applicationWillResignActive:
• applicationDidEnterBackground:

我想我的 3.2 设备上不应该有任何更改，因为它甚至不应该知道这些方法。

但是，我在 3.2 设备上收到以下“未能及时恢复”超时消息，该设备不应进行任何恢复。这对我来说毫无意义。有什么想法吗？

Incident Identifier: 5AB41509-89C9-4016-959A-96F466170CED
CrashReporter Key: fedcf4c4ba6f9d644032ce85fe1bc62664631a46
Hardware Model: iPad1,1
Process: News [1530]
Path: /var/mobile/Applications/76A324ED-567E-4253-9A3B-29A61892C5E4/News.app/News
Identifier: News
Version: ??? (???)
Code Type: ARM (Native)
Parent Process: launchd [1]

Date/Time: 2010-11-25 15:49:49.934 +0800
OS Version: iPhone OS 3.2.2 (7B500)
Report Version: 104

Exception Type: 00000020
Exception Codes: 0x8badf00d
Highlighted Thread: 0

Application Specific Information:
com.NewsPad failed to resume in time
elapsed total CPU time (seconds): 1.580 (user 0.790, system 0.790), 8% CPU
elapsed application CPU time (seconds): 0.690, 3% CPU

Thread 0:
0 libSystem.B.dylib 0x000016c4 semaphore_wait_signal_trap + 8
1 libSystem.B.dylib 0x0002ecc2 semaphore_wait_signal + 2
2 libSystem.B.dylib 0x000034b4 pthread_mutex_lock + 248
3 CoreGraphics 0x00025064 CGFontCacheLock + 24
4 CoreGraphics 0x00024ffe CGGlyphLockLockGlyphBitmaps + 142
5 libRIP.A.dylib 0x00002720 ripc_RenderGlyphs + 116
6 libRIP.A.dylib 0x0000ab38 ripc_DrawGlyphs + 1004
7 CoreGraphics 0x00024166 CGContextDelegateDrawGlyphs + 26
8 CoreGraphics 0x0002411c draw_glyphs + 720
9 CoreGraphics 0x00023cae CGContextShowGlyphsWithAdvances + 398
10 WebCore 0x00007b0e WebCore::Font::drawGlyphs(WebCore::GraphicsContext*, WebCore::SimpleFontData const*, WebCore::GlyphBuffer const&, int, int, WebCore::FloatPoint const&, bool) const + 902
11 WebCore 0x0000775e WebCore::Font::drawGlyphBuffer(WebCore::GraphicsContext*, WebCore::GlyphBuffer const&, WebCore::TextRun const&, WebCore::FloatPoint&) const + 154
12 WebCore 0x00007594 WebCore::Font::drawSimpleText(WebCore::GraphicsContext*, WebCore::TextRun const&, WebCore::FloatPoint const&, int, int) const + 380
13 WebCore 0x000073f8 WebCore::Font::drawText(WebCore::GraphicsContext*, WebCore::TextRun const&, WebCore::FloatPoint const&, int, int) const + 104
14 WebCore 0x00007382 drawAtPoint(unsigned short const*, int, WebCore::FloatPoint const&, WebCore::Font const&, WebCore::GraphicsContext*, WebCore::BidiStatus*, int) + 130
15 WebCore 0x00006ea0 -[NSString(WebStringDrawing) _web_drawAtPoint:forWidth:withFont:ellipsis:letterSpacing:includeEmoji:] + 308
16 UIKit 0x0003c15e -[NSString(UIStringDrawing) drawAtPoint:forWidth:withFont:lineBreakMode:letterSpacing:includeEmoji:] + 110
17 UIKit 0x0003c0d8 -[NSString(UIStringDrawing) drawAtPoint:forWidth:withFont:lineBreakMode:] + 44
18 UIKit 0x00047b2c -[UILabel _drawTextInRect:baselineCalculationOnly:] + 1460
19 UIKit 0x00047560 -[UILabel drawTextInRect:] + 44
20 UIKit 0x00047518 -[UILabel drawRect:] + 52
21 UIKit 0x00043f9e -[UIView(CALayerDelegate) drawLayer:inContext:] + 246
22 QuartzCore 0x00014ba2 -[CALayer drawInContext:] + 86
23 QuartzCore 0x00013b02 -[CALayer _display] + 374
24 QuartzCore 0x0001396e -[CALayer display] + 134
25 QuartzCore 0x000138b6 CALayerDisplayIfNeeded + 178
26 QuartzCore 0x00008b64 CA::Context::commit_transaction(CA::Transaction*) + 212
27 QuartzCore 0x00008974 CA::Transaction::commit() + 180
28 QuartzCore 0x0002e15e CA::Transaction::observer_callback(__CFRunLoopObserver*, unsigned long, void*) + 46
29 CoreFoundation 0x0006f29a __CFRunLoopDoObservers + 406
30 CoreFoundation 0x00022baa CFRunLoopRunSpecific + 1722
31 CoreFoundation 0x000224da CFRunLoopRunInMode + 42
32 GraphicsServices 0x000030d4 GSEventRunModal + 108
33 GraphicsServices 0x00003180 GSEventRun + 56
34 UIKit 0x0000342a -[UIApplication _run] + 374
35 UIKit 0x00001954 UIApplicationMain + 636
36 News 0x00003182 main (main.m:7)
37 News 0x00002e00 start + 32 

Answer 1

请参阅类似的问题，

“未能及时恢复”从后台崩溃恢复

如何解决在 iOS 上“未能及时恢复”

你的问题是因为你在应用程序在主线程中启动之前使用了一些长时间的计算。尝试将它们放入线程中。

谢谢，