[Mono-bugs] [Bug 553614] New: Cannot retrieve values from MKMapView SelectedAnnotations arra
bugzilla_noreply at novell.com
bugzilla_noreply at novell.com
Sat Nov 7 14:01:13 EST 2009
http://bugzilla.novell.com/show_bug.cgi?id=553614
Summary: Cannot retrieve values from MKMapView
SelectedAnnotations arra
Classification: Mono
Product: MonoTouch
Version: unspecified
Platform: Other
OS/Version: Other
Status: NEW
Severity: Major
Priority: P5 - None
Component: Runtime
AssignedTo: mono-bugs at lists.ximian.com
ReportedBy: chris.bailey at cityutilities.net
QAContact: mono-bugs at lists.ximian.com
Found By: Customer
Created an attachment (id=326147)
--> (http://bugzilla.novell.com/attachment.cgi?id=326147)
Test case for SelectedAnnotations issue
Description of Problem:
When attempting to retrieve the location (latitude, longitude, or
CLLocationCoordinate2D), title, or subtitle of the selected annotation in
MKMapView using the SelectedAnnotations property, the code will crash with a
"Cannot cast from source type to destination type error" on both the simulator
and device.
Steps to reproduce the problem:
1. Setup an MKMapView object in MonoDevelop and add annotations.
2. Add a callout button within MKAnnotationView-GetViewForAnnotation.
3. Attempt to retrieve the currently selected annotation's location using the
following code:
CLLocationCoordinate2D locateme =
mapView.SelectedAnnotations.First().Coordinate;
Actual Results:
The Application crashes with the following error report:
Stacktrace:
Native stacktrace:
0 MapKit01 0x00094caa
mono_handle_native_sigsegv + 266
1 MapKit01 0x000071d1
mono_sigsegv_signal_handler + 289
2 libSystem.B.dylib 0x94b2ab9b _sigtramp + 43
3 ??? 0xffffffff 0x0 + 4294967295
4 CoreFoundation 0x003e0869 __CFDictionaryDeallocate
+ 281
5 CoreFoundation 0x003bda41 _CFRelease + 241
6 CoreFoundation 0x003e0c12 __CFArrayReleaseValues +
434
7 CoreFoundation 0x003bda41 _CFRelease + 241
8 CoreFoundation 0x003e0869 __CFDictionaryDeallocate
+ 281
9 CoreFoundation 0x003bda41 _CFRelease + 241
10 Foundation 0x005a5cf5 NSPopAutoreleasePool +
341
11 MapKit01 0x002088cf main + 2527
12 MapKit01 0x00002be6 start + 54
Debug info from gdb:
touchdown
Main Cannot cast from source type to destination type.
warning: Trying to remove a section from the ordered section list that did not
exist at 0x2e9000.
warning: Could not find object file
"/var/folders/T+/T+AJnO+uH1mQ7y6ToV1aSU+++TI/-Tmp-/tmp4ce8a847.tmp/main.o" - no
debug information available for
"/var/folders/T+/T+AJnO+uH1mQ7y6ToV1aSU+++TI/-Tmp-/tmp4ce8a847.tmp/main.m".
Attaching to process 7063.
Reading symbols for shared libraries . done
Reading symbols for shared libraries
...................................................................................
done
0x94acfaf9 in read$UNIX2003 ()
8 port# 0x7607 0x94ae3756 in select$DARWIN_EXTSN ()
7 port# 0x6f03 0x94ac47da in mach_msg_trap ()
6 port# 0x4e03 0x94ac47da in mach_msg_trap ()
5 port# 0x3a03 0x94ac47da in mach_msg_trap ()
4 port# 0x3803 0x94ac4816 in semaphore_wait_trap ()
3 port# 0x3403 0x94af2782 in __semwait_signal ()
2 port# 0x2303 0x94ac47da in mach_msg_trap ()
* 1 port# 0x207 0x94acfaf9 in read$UNIX2003 ()
Thread 8 (process 7063):
#0 0x94ae3756 in select$DARWIN_EXTSN ()
#1 0x0043865e in __CFSocketManager ()
#2 0x94af1f39 in _pthread_start ()
#3 0x94af1dbe in thread_start ()
Thread 7 (process 7063):
#0 0x94ac47da in mach_msg_trap ()
#1 0x94ac4f47 in mach_msg ()
#2 0x003fe382 in CFRunLoopRunSpecific ()
#3 0x003fdc48 in CFRunLoopRunInMode ()
#4 0x03129b1e in GMM::TileCachePrivate::runCacheThread ()
#5 0x03129b31 in _runCacheThread ()
#6 0x94af1f39 in _pthread_start ()
#7 0x94af1dbe in thread_start ()
Thread 6 (process 7063):
#0 0x94ac47da in mach_msg_trap ()
#1 0x94ac4f47 in mach_msg ()
#2 0x003fe382 in CFRunLoopRunSpecific ()
#3 0x003fdc48 in CFRunLoopRunInMode ()
#4 0x005ff80e in +[NSURLConnection(NSURLConnectionReallyInternal)
_resourceLoadLoop:] ()
#5 0x005a9f7d in -[NSThread main] ()
#6 0x005a9b18 in __NSThread__main__ ()
#7 0x94af1f39 in _pthread_start ()
#8 0x94af1dbe in thread_start ()
Thread 5 (process 7063):
#0 0x94ac47da in mach_msg_trap ()
#1 0x94ac4f47 in mach_msg ()
#2 0x003fe382 in CFRunLoopRunSpecific ()
#3 0x003fdc48 in CFRunLoopRunInMode ()
#4 0x03465803 in RunWebThread ()
#5 0x94af1f39 in _pthread_start ()
#6 0x94af1dbe in thread_start ()
Thread 4 (process 7063):
#0 0x94ac4816 in semaphore_wait_trap ()
#1 0x00110860 in finalizer_thread (unused=0x0) at
./../../../mono/metadata/gc.c:1022
#2 0x001a20d6 in start_wrapper (data=0x50169b0) at
./../../../mono/metadata/threads.c:662
#3 0x001d68a6 in thread_start_routine (args=0x5800c34) at
./../../../mono/io-layer/wthreads.c:286
#4 0x0020100c in GC_start_routine (arg=0x5142f60) at
./../../libgc/pthread_support.c:1390
#5 0x94af1f39 in _pthread_start ()
#6 0x94af1dbe in thread_start ()
Thread 3 (process 7063):
#0 0x94af2782 in __semwait_signal ()
#1 0x94b1e621 in nanosleep$UNIX2003 ()
#2 0x001b8ba0 in collection_thread (unused=0x0) at
./../../../mono/io-layer/collection.c:34
#3 0x94af1f39 in _pthread_start ()
#4 0x94af1dbe in thread_start ()
Thread 2 (process 7063):
#0 0x94ac47da in mach_msg_trap ()
#1 0x94ac4f47 in mach_msg ()
#2 0x000d7fda in mach_exception_thread (arg=0x0) at
./../../../mono/mini/mini-darwin.c:131
#3 0x0020100c in GC_start_routine (arg=0x5142f60) at
./../../libgc/pthread_support.c:1390
#4 0x94af1f39 in _pthread_start ()
#5 0x94af1dbe in thread_start ()
Thread 1 (process 7063):
#0 0x94acfaf9 in read$UNIX2003 ()
#1 0x00094dea in mono_handle_native_sigsegv (signal=11, ctx=0xbfffec04) at
./../../../mono/mini/mini-exceptions.c:1808
#2 0x000071d1 in mono_sigsegv_signal_handler (_dummy=11, info=0xbfffebc4,
context=0xbfffec04) at ../../../../mono/mini/mini.c:4760
#3 <signal handler called>
#4 0x942ab92c in objc_msgSend ()
#5 0x05013790 in ?? ()
#6 0x003e0869 in __CFDictionaryDeallocate ()
#7 0x003bda41 in _CFRelease ()
#8 0x003e0c12 in __CFArrayReleaseValues ()
#9 0x003bda41 in _CFRelease ()
#10 0x003e0869 in __CFDictionaryDeallocate ()
#11 0x003bda41 in _CFRelease ()
#12 0x005a5cf5 in NSPopAutoreleasePool ()
#13 0x002088cf in main ()
=================================================================
Got a SIGSEGV while executing native code. This usually indicates
a fatal error in the mono runtime or one of the native libraries
used by your application.
=================================================================
Expected Results:
SelectedAnnotations.Coordiante, SelectedAnnotations.Title, and
SelectedAnnotations.Subtitle should return requested information per the
documentation.
How often does this happen?
This occurs any time the SelectedAnnotations property is called.
Additional Information:
A test case has been submitted with this bug report to reproduce the issue.
All code relating to the issue is contained in line 300 of Main.cs.
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