[AC-4462] Set an empty view backgroundImage crash the application

GitHub Issue	n/a
Type	Bug
Priority	n/a
Status	Closed
Resolution	Invalid
Resolution Date	2016-09-19T20:48:23.000+0000
Affected Version/s	n/a
Fix Version/s	n/a
Components	Titanium SDK & CLI
Labels	ios
Reporter	nicolomonili
Assignee	Shak Hossain
Created	2016-09-15T09:15:45.000+0000
Updated	2016-09-19T20:48:23.000+0000

Description

I can't reproduce the problem with a test project , but i'm pretty sure that the problem is due to the fact that i change the backgroundImage property of a view in this way

myview.backgroundImage = "";

My app is very complex, but commenting the line of code where i edit the backgroundImage property the app no longer crashes. Has anyone ever had problems of this kind? This issue can help (http://stackoverflow.com/questions/36427020/appcelerator-bomstream-bomstreamwithfileandsysint-off-t-size-t-int-char) ? This is the crash error (is always the same , in different points of the app)

[ERROR] :  The application has crashed with an uncaught exception 'NSRangeException'.
[ERROR] :  Reason:
[ERROR] :  *** -[__NSCFString substringFromIndex:]: Index 180 out of bounds; string length 179
[ERROR] :  Stack trace:
[ERROR] :  
[ERROR] :  0   CoreFoundation                      0x067991f0 __exceptionPreprocess + 160
[ERROR] :  1   libobjc.A.dylib                     0x05e0ee66 objc_exception_throw + 52
[ERROR] :  2   CoreFoundation                      0x0680af15 +[NSException raise:format:] + 133
[ERROR] :  3   Foundation                          0x017acc52 -[NSString substringFromIndex:] + 113
[ERROR] :  4   App Name                        0x000adbbb +[TiUtils loadAppResource:] + 331
[ERROR] :  5   App Name                        0x001faf6c -[LocalProtocolHandler startLoading] + 412
[ERROR] :  6   CFNetwork                           0x03e9dad6 ___ZN16CFURLProtocol_NS28_protocolInterface_startLoadEPK20_CFCachedURLResponse_block_invoke + 288
[ERROR] :  7   libdispatch.dylib                   0x08c806ef _dispatch_client_callout + 14
[ERROR] :  8   libdispatch.dylib                   0x08c61e14 _dispatch_block_invoke_direct + 347
[ERROR] :  9   libdispatch.dylib                   0x08c7de04 ___dispatch_block_create_block_invoke + 20
[ERROR] :  10  CFNetwork                           0x03d6ab6e _ZN19RunloopBlockContext13_invoke_blockEPKvPv + 24
[ERROR] :  11  CoreFoundation                      0x066e3ef9 CFArrayApplyFunction + 57
[ERROR] :  12  CFNetwork                           0x03d6aa69 _ZN19RunloopBlockContext7performEv + 139
[ERROR] :  13  CFNetwork                           0x03e70ebc _ZThn16_N19RunloopBlockContext24multiplexerClientPerformEv + 20
[ERROR] :  14  CFNetwork                           0x03d6a905 _ZN17MultiplexerSource7performEv + 319
[ERROR] :  15  CFNetwork                           0x03d6a724 _ZN17MultiplexerSource8_performEPv + 62
[ERROR] :  16  CoreFoundation                      0x06738cbf __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 15
[ERROR] :  17  CoreFoundation                      0x0671cdf7 __CFRunLoopDoSources0 + 519
[ERROR] :  18  CoreFoundation                      0x0671c284 __CFRunLoopRun + 1124
[ERROR] :  19  CoreFoundation                      0x0671bbab CFRunLoopRunSpecific + 395
[ERROR] :  20  CoreFoundation                      0x0671ba0b CFRunLoopRunInMode + 123
[ERROR] :  21  CFNetwork                           0x04013cb8 _ZL27_privateRunloopEmulationSetPv + 246
[ERROR] :  22  libsystem_pthread.dylib             0x08ff9780 _pthread_body + 138
[ERROR] :  23  libsystem_pthread.dylib             0x08ff96f6 _pthread_body + 0
[ERROR] :  24  libsystem_pthread.dylib             0x08ff6f7a thread_start + 34
[ERROR] :  
[ERROR] :  2016-09-15 10:57:28.699 App Name[20463:141440] *** Terminating app due to uncaught exception 'NSRangeException', reason: '*** -[__NSCFString substringFromIndex:]: Index 180 out of bounds; string length 179'
[ERROR] :  *** First throw call stack:
[ERROR] :  (
[ERROR] :  	0   CoreFoundation                      0x06799212 __exceptionPreprocess + 194
[ERROR] :  	1   libobjc.A.dylib                     0x05e0ee66 objc_exception_throw + 52
[ERROR] :  	2   CoreFoundation                      0x0680af15 +[NSException raise:format:] + 133
[ERROR] :  	3   Foundation                          0x017acc52 -[NSString substringFromIndex:] + 113
[ERROR] :  	4   App Name                          0x000adbbb +[TiUtils loadAppResource:] + 331
[ERROR] :  	5   App Name                           0x001faf6c -[LocalProtocolHandler startLoading] + 412
[ERROR] :  	6   CFNetwork                           0x03e9dad6 ___ZN16CFURLProtocol_NS28_protocolInterface_startLoadEPK20_CFCachedURLResponse_block_invoke + 288
[ERROR] :  	7   libdispatch.dylib                   0x08c806ef _dispatch_client_callout + 14
[ERROR] :  	8   libdispatch.dylib                   0x08c61e14 _dispatch_block_invoke_direct + 347
[ERROR] :  	9   libdispatch.dylib                   0x08c7de04 ___dispatch_block_create_block_invoke + 20
[ERROR] :  	10  CFNetwork                           0x03d6ab6e _ZN19RunloopBlockContext13_invoke_blockEPKvPv + 24
[ERROR] :  	11  CoreFoundation                      0x066e3ef9 CFArrayApplyFunction + 57
[ERROR] :  	12  CFNetwork                           0x03d6aa69 _ZN19RunloopBlockContext7performEv + 139
[ERROR] :  	13  CFNetwork                           0x03e70ebc _ZThn16_N19RunloopBlockContext24multiplexerClientPerformEv + 20
[ERROR] :  	14  CFNetwork                           0x03d6a905 _ZN17MultiplexerSource7performEv + 319
[ERROR] :  	15  CFNetwork                           0x03d6a724 _ZN17MultiplexerSource8_performEPv + 62
[ERROR] :  	16  CoreFoundation                      0x06738cbf __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 15
[ERROR] :  	17  CoreFoundation                      0x0671cdf7 __CFRunLoopDoSources0 + 519
[ERROR] :  	18  CoreFoundation                      0x0671c284 __CFRunLoopRun + 1124
[ERROR] :  	19  CoreFoundation                      0x0671bbab CFRunLoopRunSpecific + 395
[ERROR] :  	20  CoreFoundation                      0x0671ba0b CFRunLoopRunInMode + 123
[ERROR] :  	21  CFNetwork                           0x04013cb8 _ZL27_privateRunloopEmulationSetPv + 246
[ERROR] :  	22  libsystem_pthread.dylib             0x08ff9780 _pthread_body + 138
[ERROR] :  	23  libsystem_pthread.dylib             0x08ff96f6 _pthread_body + 0
[ERROR] :  	24  libsystem_pthread.dylib             0x08ff6f7a thread_start + 34
[ERROR] :  )
[ERROR] :  libc++abi.dylib: terminating with uncaught exception of type NSException

With SDK 5.4.0.G.A and 5.5.0.G.A the app crash. With SDK 5.3.1.G.A the app doesn't crash

Comments

Sharif AbuDarda 2016-09-15

Hello, When backgroundImage is specified, you have to provide a local file path or URL. Default behavior, when backgroundImage is unspecified depends on the type of view and the platform. For generic views, no image is used. For most controls (buttons, text fields, and so on), platform-specific default images are used. Reference: http://docs.appcelerator.com/platform/latest/#!/api/Titanium.UI.View-property-backgroundImage. So, Assign an image to the property. Thanks.
nicolomonili 2016-09-15

So , the crash can be related to this ==> view.backgroundImage = ""; ? Because from the crash log i don't understand what can cause the problem
Sharif AbuDarda 2016-09-16

Yes, Leaving "backgroundImage" as blank, is the cause of the error. You have to provide an image path or link. Thanks.
nicolomonili 2016-09-19

Ok , problem solved. Maybe it would be better to specify in the docs that this property can't be empty.

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