I trying to change a NSNumber value in NSMutableArray.
How to do that?
- (void)viewDidLoad {
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
NSMutableArray *_numArray = [[NSMutableArray alloc] init];
[_numArray addObject:[NSNumber numberWithBool:YES]];
[_numArray addObject:[NSNumber numberWithBool:YES]];
[_numArray addObject:[NSNumber numberWithBool:YES]];
for (NSNumber *_numObject in _numArray) {
// How to change all NSNumber Object from YES to NO?
_numObject = [NSNumber numberWithBool:NO]; // <== Is this correct?
}
}
The code in your question won't change anything except the value of the loop variable.
You need to replace the value in the array like this:
[_numArray replaceObjectAtIndex:1 withObject:@NO];
Or if you want to replace all, then do:
for (NSInteger i = 0; i < _numArray.count; i++) {
[_numArray replaceObjectAtIndex:i withObject:@NO];
}
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