I have 7 CCLabelAtlas labels declared in .h file like this CCLabelAtlas *numberStat[7]. Then I then initialized them in a for loop in .m file:
for (int i = 1; i <=7; i++) {
NSString* statName = [NSString stringWithFormat #"Number %d", i];
numberStat[i] = [[CCLabelAtlas labelWithString: [self loadThisValue:statName] charMapFile:#"digitalNumbers.png" itemWidth:26 itemHeight:37 startCharMap:'0'] retain];
[self addChild: numberStat[i]];
}
The problem comes when I try to update the label. I can update from 2 to 7 just fine, but when I try to update numberStat[1]'s string (numberStat[1].string = #"111";), it crashes. The exact same code works for 2-7.
Here's the crash log:
-[CCSprite setString:]: unrecognized selector sent to instance 0x897cbd0
*** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[CCSprite setString:]: unrecognized selector sent to instance 0x897cbd0'
One possibility is that somewhere in your code, numberStat[1] is being over-released, and by the time you come to assign a string to it, a CCSprite has moved into the memory that it occupied.
Related
After testing my app in a iOS 7 device, I got a crash calling containsString from NSString, and then I realised that that methods has NS_AVAILABLE(10_10, 8_0);
Is there anyway to check automatically my program to see if there is any other method that is not available in iOS 7?
How is possible to compile and app with deployment target of 7.0 and not saying any warning or error in these cases?
-[__NSCFString containsString:]: unrecognized selector sent to instance 0x1702297c0
2015-10-23 12:03:37.655 WA[1434:60b] * Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[__NSCFString containsString:]: unrecognized selector sent to instance 0x1702297c0'
* First throw call stack:
(0x183bd2f50 0x1900dc1fc 0x183bd7c04 0x183bd5930 0x183af55dc 0x1002a2c08 0x1000c71dc 0x1000caa88 0x1000c69bc 0x1000f3a4c 0x186c1055c 0x186c0ff08 0x186c099ec 0x186b9d8cc 0x186b9cad0 0x186c09044 0x1897bb504 0x1897bb030 0x183b92e90 0x183b92df0 0x183b91014 0x183ad1c20 0x186c081c8 0x186c02fdc 0x1000b6040 0x1906cfaa0)
libc++abi.dylib: terminating with uncaught exception of type NSException
You should use rangeOfString instead of containsString. Since rangeOfString available from iOS 2.0, you will not get crash on this.
Code snippets,
NSString *string = #"https://www.google.co.in/";
NSString *substring = #"http";
if ([oneContent rangeOfString:subString].location == NSNotFound) {
NSLog(#"string does not contain substring");
} else {
NSLog(#"string contains substring!");
}
Otherwise you can add category class for NSString and have a method like containsString: where you can implement the above code. It'll work dynamically.
I have been trying to work through a bug for many hours in my iOS App involving rangeOfString and have finally been able to track down where my app crashes. My app sets TextViewA to the first half of my MainTextView. What if statement should be added should be added to check for nil?
*** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '*** -[__NSCFString rangeOfString:options:range:locale:]: nil argument'
*** First throw call stack:
.
[[myViewController tvTextFirstHalf] setText:[[mainTextView.text componentsSeparatedByString:[[myViewController tvTextMiddle]text]] objectAtIndex:0]];
..............................................................................................
No memory available to program now: unsafe to call malloc
2013-01-04 14:30:58.138 Type[7279:c07] separator: (null)
2013-01-04 14:30:58.138 Type[7279:c07] mainTextView: ; layer = ; contentOffset: {0, 0}
>
2013-01-04 14:30:58.139 Type[7279:c07] mainTextView.text: TESTTTTTTTT f f.
2013-01-04 14:30:58.142 Type[7279:c07] * Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '* -[__NSCFString rangeOfString:options:range:locale:]: nil argument'
* First throw call stack:
(0x1a5d012 0x1882e7e 0x1a5cdeb 0xf78688 0xf87d88 0xfd05df 0x165ec 0x15dc6 0x1fd7b 0x56d8d5 0x56db3d 0xf74e83 0x1a1c376 0x1a1be06 0x1a03a82 0x1a02f44 0x1a02e1b 0x221d7e3 0x221d668 0x4be65c 0x2c5d 0x2b85)
libc++abi.dylib: terminate called throwing an exception
(gdb)
This oneliners are not considered a good practice in obj-C (i know, it's arguable).
Try to break:
[[myViewController tvTextFirstHalf] setText:[[mainTextView.text componentsSeparatedByString:[[myViewController tvTextMiddle]text]] objectAtIndex:0]];
Into some more debugging-friendly code:
NSString *separator = [[myViewController tvTextMiddle]text];
NSLog (#"separator: %#", separator);
NSLog (#"mainTextView: %#",mainTextView); //is this one nil?
NSLog (#"myViewController.tvTextMiddle: %#", myViewController.tvTextMiddle); //what about this one??
NSLog (#"mainTextView.text: %#",mainTextView.text);
NSArray *components = [mainTextView.text componentsSeparatedByString:separator];
NSLog (#"we found %d components", components.count);
NSString *result = (NSString *)[components objectAtIndex:0];
NSLog (#"result should be: %#", result);
[[myViewController tvTextFirstHalf] setText:result];
The code will break ofcourse but at least you'll know where the problem lies.
You could change last four lines then in something like:
if (components.count >= 1)
{
NSString *result = (NSString *)[components objectAtIndex:0];
NSLog (#"result should be: %#", result);
[[myViewController tvTextFirstHalf] setText:result];
}
else
{
[[myViewController tvTextFirstHalf] setText:#"empty!"];
}
EDIT:
From the NSLog you posted it is obvious that your separator [[myViewController tvTextMiddle]text] is null. Note that null is not the same as empty string. It is unallocated string.
My guess is that actually your tvTextMiddle is null (or if you are using XIB files it is not properly connected to the IBOutlet).
You can check that by adding (somewhere before the breaking-line):
NSLog (#"myViewController.tvTextMiddle: %#", myViewController.tvTextMiddle);
The crash is due to this call componentsSeparatedByString.
If your textview is nil or no text then crash'll occur.
So add a condition like:
if(mainTextView.text.length != 0 && [myViewController tvTextMiddle]text].length != 0)
{
[[myViewController tvTextFirstHalf] setText:[[mainTextView.text componentsSeparatedByString:[[myViewController tvTextMiddle]text]] objectAtIndex:0]];
}
I have this in a class:
NSString *globalMidiData = #"30a0a00\n";
switch (IndicatorCheckNXT) {
case 1:
[testRobot checkTestRobot:globalMidiData];
break;
default:
break;
}
And in another class I have this:
-(void) checkTestRobot: (NSString *)midiDataGlobal{
bool pressed;
bool pressed2;
NSString *miawmiaw =[NSString alloc];
miawmiaw=midiDataGlobal;
}
And I got this message:
-[AppDelegate checkTestRobot:]: unrecognized selector sent to instance 0x18acb0
2012-11-23 20:45:31.755 Exemple1[477:707] * Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[AppDelegate checkTestRobot:]: unrecognized selector sent to instance 0x18acb0'
What I am doing wrong?
Obviously you send checkTestRobot to the wrong object. testRobot seems to point to the AppDelegate and not to an instance of your class.
Also you should replace this:
NSString *miawmiaw =[NSString alloc];
miawmiaw=midiDataGlobal;
with:
NSString *miawmiaw = [midiDataGlobal copy];
I'm getting this crash, but, in my code I am using a string. I've been working on this one piece of code for 2 hours now and I just can't see what I'm missing! Any ideas?
NSString *codeR = [NSString stringWithFormat:#"%#", [[object objectForKey:#"code"] stringValue]];
if([codeR isEqualToString:#"200"])
Error:
Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[__NSCFNumber isEqualToString:]: unrecognized selector sent to instance 0x181cf0'
I would be very grateful input, this is confusing the hell out of me!
Thanks.
Get rid of silly redundancy, see what happens.
NSString *codeR = [[object objectForKey:#"code"] stringValue];
// mysterious missing code
if ([coreR isEqualToString:#"200"]) // etc
Also, are you sure the error is raised from the if statement you posted? It could be coming from elsewhere.
NSString *codeR = [[object objectForKey:#"code"] stringValue];
if ([codeR isEqualToString:#"200"])
{
// Do stuff...
}
I have a button within interface builder that has a '0' tag on it. The button has a method linked to it called -(IBAction) doTest:(id)sender.
I have the doTest method within my .m file as shown below:
-(IBAction) doTest:(id)sender
{
int currentSelection= [sender tag];
if (currentSelection == 0)
{
// do something
}
}
However my app crashes with the following error message and I have no idea why. Any help would be appreciated. Thanks.
[groceryapp doTest]: unrecognized selector sent to instance 0xc29c00
2012-03-04 20:26:10.155 groceries[4627:707] ***
Terminating app due to uncaught exception 'NSInvalidArgumentException',
reason: '-[grocery doTest]: unrecognized selector sent to instance 0xc29c00'
Wrong message.
doTest vs doTest: