Array Initialization
The following code for initialization of array works ::
NSArray *array = [[NSArray alloc] initWithObjects:@"Toy Story 3",@"Inception",nil];
self.list = [array sortedArrayUsingSelector:@selector(compare:)];
[array release];
[super viewDidLoad];
But the following code doesnt. The iPhone Simulator Terminates as soon as I try to scroll the Table View which i used to view the array. (Only after i scroll onto empty tableViewCells)
NSBundle *bundle = [NSBundle mainBundle];
NSString *plistPath = [bundle pathForResource:@"MovieList" ofType:@"plist"];
NSMutableArray *array = [[NSMutableArray alloc] initWithContentsOfFile:plistPath];
NSLog([array objectAtIndex:1]);
self.list = [array sortedArrayUsingSelector:@selector(compare:)];
[array release];
[super viewDidLoad];
This was an example app from the Book "Beginning iPhone Development" by Dave Mark. In the example , they have initialized the array within the code, while i have tried to initialize it from a external file.
The console Log ::
2010-12-22 20:57:43.772 Nav[2474:40b] WARNING: Using legacy cell layout due to delegate implementation of tableView:accessoryTypeForRowWithIndexPath: in <RootViewController: 0x9908870>. Please remove your implementation of this method and set the cell properties accessoryType and/or editingAccessoryType to move to the new cell layout behavior. This method will no longer be called in a future release.
2010-12-22 20:58:12.480 Nav[2474:40b] WARNING: Using legacy cell layout due to delegate implementation of tableView:accessoryTypeForRowWithIndexPath: in <DisclosureButtonController: 0x9b32ab0>. Please remove your implementation of this method and set the cell properties accessoryType and/or editingAccessoryType to move to the new cell layout behavior. This method will no longer be called in a future release.
2010-12-22 20:59:13.299 Nav[2474:40b] -[UIDeviceRGBColor length]: unrecognized selector sent to instance 0x9b3d900
2010-12-22 20:59:13.301 Nav[2474:40b] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[UIDeviceRGBColor length]: unrecognized selector sent to instance 0x9b3d900'
*** Call stack at first throw:
(
0 CoreFoundation 0x00db2be9 __exceptionPreprocess + 185
1 libobjc.A.dylib 0x00f075c2 objc_exception_throw + 47
2 CoreFoundation 0x00db开发者_开发技巧46fb -[NSObject(NSObject) doesNotRecognizeSelector:] + 187
3 CoreFoundation 0x00d24366 ___forwarding___ + 966
4 CoreFoundation 0x00d23f22 _CF_forwarding_prep_0 + 50
5 UIKit 0x0051a9ca -[UITableViewCellLayoutManager layoutSubviewsOfCell:] + 3424
6 UIKit 0x00482e02 -[UITableViewCell layoutSubviews] + 95
7 QuartzCore 0x01c70451 -[CALayer layoutSublayers] + 181
8 QuartzCore 0x01c7017c CALayerLayoutIfNeeded + 220
9 QuartzCore 0x01c6937c _ZN2CA7Context18commit_transactionEPNS_11TransactionE + 310
10 QuartzCore 0x01c690d0 _ZN2CA11Transaction6commitEv + 292
11 QuartzCore 0x01c997d5 _ZN2CA11Transaction17observer_callbackEP19__CFRunLoopObservermPv + 99
12 CoreFoundation 0x00d93fbb __CFRUNLOOP_IS_CALLING_OUT_TO_AN_OBSERVER_CALLBACK_FUNCTION__ + 27
13 CoreFoundation 0x00d290e7 __CFRunLoopDoObservers + 295
14 CoreFoundation 0x00cf1bd7 __CFRunLoopRun + 1575
15 CoreFoundation 0x00cf1240 CFRunLoopRunSpecific + 208
16 CoreFoundation 0x00cf1161 CFRunLoopRunInMode + 97
17 GraphicsServices 0x016e7268 GSEventRunModal + 217
18 GraphicsServices 0x016e732d GSEventRun + 115
19 UIKit 0x002ca42e UIApplicationMain + 1160
20 Nav 0x00002598 main + 102
21 Nav 0x00002529 start + 53
)
terminate called after throwing an instance of 'NSException'
enter code here
It sounds like this is a perfect job for the debugger, doesn't it? Why not set a breakpoint on the first line and make sure nothing is unexpectedly nil or out of bounds as you step through and inspect your variables? Perhaps paying attention to the error that's undoubtedly logged to the console might be helpful, too?
Given you've mentioned neither the line on which it terminates nor any log messages, this is about as specific as anyone can get.
The first argument to NSLog needs to be an NSString. The object you're passing to it appears to be part of the UIColor cluster. I suggest you change to:
NSLog(@"%@", [array objectAtIndex:1]);
So the first argument is definitely a string and it says just to print a description of whichever object is the next argument.
精彩评论