Hello,
I got a crash log from a user that's mildly puzzling. It happens somewhere
deep down CoreText it seems, while encoding an NSAttributedString (whose content
I don't know). Any ideas how it can some to this?
My app has a standard UITextView that feeds the model property that is encoded
here. There is no processing of the attributed string going on in the App. The
UITextView is created dynamically (not loaded from a NIB), it is embedded in a
custom UITableViewCell (just in case that influences the way it constructs
attributed strings it spits out).
Google turns up some crashes with a similar top end of the call stack, but those
happen while drawing the attributed string. Does iOS draw a NSAttributedString
in order to object-encode it?
The code that eventually ends up crashing is
- (void)encodeWithCoder:(NSCoder *)encoder
{
....
[encoder encodeObject:notes forKey:@"notes"];
....
}
Does this ring a bell for anyone?
Regards
Markus
Hardware Model: iPhone6,2
Process: MyApp [3818]
Path:
/var/mobile/Applications/9C395437-7BC5-47A8-B4BE-C659F61F5628/MyApp.app/MyApp
Identifier: com.bla.MyApp
Version: 162 (1.0)
Code Type: ARM-64 (Native)
Parent Process: launchd [1]
Date/Time: 2014-01-19 06:44:51.347 +0000
OS Version: iOS 7.0.4 (11B554a)
Report Version: 104
Exception Type: EXC_BAD_ACCESS (SIGSEGV)
Exception Subtype: KERN_INVALID_ADDRESS at 0x7300786966657250
Triggered by Thread: 0
Thread 0 Crashed:
0 ??? 0x7300786966657250 0 + 8286755708446536272
1 CoreText 0x000000018c689bd8 TBaseFont::CalculateFontMetrics(bool)
const + 100
2 CoreText 0x000000018c699930
TComponentFont::CalculateFontMetrics(bool) const + 52
3 CoreText 0x000000018c689a2c TBaseFont::InitFontMetrics() const + 64
4 CoreText 0x000000018c70bec8 TBaseFont::GetStrikeMetrics(double,
CGAffineTransform const*, bool) const + 96
5 CoreText 0x000000018c689774 TFont::InitStrikeMetrics() const + 64
6 CoreText 0x000000018c689704 CTFontGetAscent + 120
7 GraphicsServices 0x00000001917ffc14 GSFontEnsureExtraData + 256
8 GraphicsServices 0x0000000191802940 GSFontGetExtraData + 52
9 UIFoundation 0x0000000194c3ee00 -[UIFont isIBTextStyleFont] + 12
10 UIFoundation 0x0000000194c3e904 -[UIFont encodeWithCoder:] + 112
11 Foundation 0x000000018c9dc210 _encodeObject + 1244
12 Foundation 0x000000018c9dd74c -[NSKeyedArchiver
_encodeArrayOfObjects:forKey:] + 468
13 Foundation 0x000000018c9dd374 -[NSDictionary(NSDictionary)
encodeWithCoder:] + 1024
14 Foundation 0x000000018c9dc210 _encodeObject + 1244
15 Foundation 0x000000018c9e9a80 -[NSAttributedString encodeWithCoder:]
+ 252
16 Foundation 0x000000018c9dc210 _encodeObject + 1244
17 MyApp 0x000000010014bb64 -[Activity encodeWithCoder:]
(SRC.m:2319)
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