Why I can't access NSMutable Array in my method?
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I try to add object to my NSMutable array in my method, but keep getting error. It works, if I add the object in init. It doesn't say that anything is wrong until I try to execute the code.
This is below the #import stuff where I declare two arrays:
NSMutableArray *actions1, *actions2;
This is in init:
actions1 = [NSMutableArray array];
Here I try to add 1 to the array:
- (void) storeAction:(int) action {
[actions1 addObject:@"1"];
}
The same code works in int as I said earlier.
I also would like it to store the int value declared "action", but this didn't seem to work either.
[addObject:@"%d", action];
iphone objective-c methods
asked Feb 29 '12 at 20:49
LiuhuLiuhu
4118
add a comment |
I try to add object to my NSMutable array in my method, but keep getting error. It works, if I add the object in init. It doesn't say that anything is wrong until I try to execute the code.
This is below the #import stuff where I declare two arrays:
NSMutableArray *actions1, *actions2;
This is in init:
actions1 = [NSMutableArray array];
Here I try to add 1 to the array:
- (void) storeAction:(int) action {
[actions1 addObject:@"1"];
}
The same code works in int as I said earlier.
I also would like it to store the int value declared "action", but this didn't seem to work either.
[addObject:@"%d", action];
iphone objective-c methods
asked Feb 29 '12 at 20:49
LiuhuLiuhu
4118
Regarding the [addObject:@"%d", action]; - please elaborate what does it mean "didn't seem to work either".. what's happening ? and BTW - why aren't you storing the int as a NSNumber object ? ([NSNumber numberWithInt:1])
– Guys
Feb 29 '12 at 22:26
add a comment |
I try to add object to my NSMutable array in my method, but keep getting error. It works, if I add the object in init. It doesn't say that anything is wrong until I try to execute the code.
This is below the #import stuff where I declare two arrays:
NSMutableArray *actions1, *actions2;
This is in init:
actions1 = [NSMutableArray array];
Here I try to add 1 to the array:
- (void) storeAction:(int) action {
[actions1 addObject:@"1"];
}
The same code works in int as I said earlier.
I also would like it to store the int value declared "action", but this didn't seem to work either.
[addObject:@"%d", action];
iphone objective-c methods
asked Feb 29 '12 at 20:49
LiuhuLiuhu
4118
I try to add object to my NSMutable array in my method, but keep getting error. It works, if I add the object in init. It doesn't say that anything is wrong until I try to execute the code.
This is below the #import stuff where I declare two arrays:
NSMutableArray *actions1, *actions2;
This is in init:
actions1 = [NSMutableArray array];
Here I try to add 1 to the array:
- (void) storeAction:(int) action {
[actions1 addObject:@"1"];
}
The same code works in int as I said earlier.
I also would like it to store the int value declared "action", but this didn't seem to work either.
[addObject:@"%d", action];
iphone objective-c methods
iphone objective-c methods
asked Feb 29 '12 at 20:49
LiuhuLiuhu
4118
asked Feb 29 '12 at 20:49
LiuhuLiuhu
4118
asked Feb 29 '12 at 20:49
LiuhuLiuhu
4118
asked Feb 29 '12 at 20:49
LiuhuLiuhu
4118
asked Feb 29 '12 at 20:49
LiuhuLiuhu
4118
4118
Regarding the [addObject:@"%d", action]; - please elaborate what does it mean "didn't seem to work either".. what's happening ? and BTW - why aren't you storing the int as a NSNumber object ? ([NSNumber numberWithInt:1])
– Guys
Feb 29 '12 at 22:26
add a comment |
Regarding the [addObject:@"%d", action]; - please elaborate what does it mean "didn't seem to work either".. what's happening ? and BTW - why aren't you storing the int as a NSNumber object ? ([NSNumber numberWithInt:1])
– Guys
Feb 29 '12 at 22:26
Regarding the [addObject:@"%d", action]; - please elaborate what does it mean "didn't seem to work either".. what's happening ? and BTW - why aren't you storing the int as a NSNumber object ? ([NSNumber numberWithInt:1])
– Guys
Feb 29 '12 at 22:26
Regarding the [addObject:@"%d", action]; - please elaborate what does it mean "didn't seem to work either".. what's happening ? and BTW - why aren't you storing the int as a NSNumber object ? ([NSNumber numberWithInt:1])
– Guys
Feb 29 '12 at 22:26
add a comment |
3 Answers
3
active
oldest
votes
[NSMutableArray array]; is returning an autoreleased object, by the time you try to access it, it is most likely deallocated already. Try [[NSMutableArray alloc] init]; instead. And than you should urgently check the memory management rules.
answered Feb 29 '12 at 20:52
vikingosegundovikingosegundo
48.8k14117163
I prefer this to [[NSMutableArray array] retain], plus you explained why your solution works. +1
– Daniel G. Wilson
Feb 29 '12 at 20:55
Thanks! Will read that tomorrow. Any idea why this won't work?[addObject:@"%d", action];
– Liuhu
Feb 29 '12 at 22:06
1
addObjecttakes a string and doesn't do formatting. You want:[array addObject:[NSString stringWithFormat:@"%d", action]];
– gregheo
Feb 29 '12 at 23:00
Thank you. Love peple who are willing to help.
– Liuhu
Mar 1 '12 at 14:40
add a comment |
Try out this code
actions1 = [[NSMutableArray alloc] init];
Hope this helps.
edited Mar 24 '12 at 19:50
Parth Bhatt
14.2k25121212
answered Feb 29 '12 at 20:53
VinnieVinnie
1,3771013
add a comment |
Alternatively, in your header file:
@property(nonatomic, strong)NSMutableArray *actions1;
Then in the implantation file:
@synthesize actions1 = _actions1;
Then you can access your array as self.actions1.
edited Nov 22 '18 at 1:49
Pang
7,0131666105
answered Feb 29 '12 at 22:06
dbrajkovicdbrajkovic
3,42511314
add a comment |
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3 Answers
3
active
oldest
votes
3 Answers
3
active
oldest
votes
active
oldest
votes
active
oldest
votes
[NSMutableArray array]; is returning an autoreleased object, by the time you try to access it, it is most likely deallocated already. Try [[NSMutableArray alloc] init]; instead. And than you should urgently check the memory management rules.
answered Feb 29 '12 at 20:52
vikingosegundovikingosegundo
48.8k14117163
I prefer this to [[NSMutableArray array] retain], plus you explained why your solution works. +1
– Daniel G. Wilson
Feb 29 '12 at 20:55
Thanks! Will read that tomorrow. Any idea why this won't work?[addObject:@"%d", action];
– Liuhu
Feb 29 '12 at 22:06
1
addObjecttakes a string and doesn't do formatting. You want:[array addObject:[NSString stringWithFormat:@"%d", action]];
– gregheo
Feb 29 '12 at 23:00
Thank you. Love peple who are willing to help.
– Liuhu
Mar 1 '12 at 14:40
add a comment |
[NSMutableArray array]; is returning an autoreleased object, by the time you try to access it, it is most likely deallocated already. Try [[NSMutableArray alloc] init]; instead. And than you should urgently check the memory management rules.
answered Feb 29 '12 at 20:52
vikingosegundovikingosegundo
48.8k14117163
I prefer this to [[NSMutableArray array] retain], plus you explained why your solution works. +1
– Daniel G. Wilson
Feb 29 '12 at 20:55
Thanks! Will read that tomorrow. Any idea why this won't work?[addObject:@"%d", action];
– Liuhu
Feb 29 '12 at 22:06
1
addObjecttakes a string and doesn't do formatting. You want:[array addObject:[NSString stringWithFormat:@"%d", action]];
– gregheo
Feb 29 '12 at 23:00
Thank you. Love peple who are willing to help.
– Liuhu
Mar 1 '12 at 14:40
add a comment |
[NSMutableArray array]; is returning an autoreleased object, by the time you try to access it, it is most likely deallocated already. Try [[NSMutableArray alloc] init]; instead. And than you should urgently check the memory management rules.
answered Feb 29 '12 at 20:52
vikingosegundovikingosegundo
48.8k14117163
[NSMutableArray array]; is returning an autoreleased object, by the time you try to access it, it is most likely deallocated already. Try [[NSMutableArray alloc] init]; instead. And than you should urgently check the memory management rules.
answered Feb 29 '12 at 20:52
vikingosegundovikingosegundo
48.8k14117163
edited Feb 29 '12 at 20:59
answered Feb 29 '12 at 20:52
vikingosegundovikingosegundo
48.8k14117163
answered Feb 29 '12 at 20:52
vikingosegundovikingosegundo
48.8k14117163
answered Feb 29 '12 at 20:52
vikingosegundovikingosegundo
48.8k14117163
48.8k14117163
I prefer this to [[NSMutableArray array] retain], plus you explained why your solution works. +1
– Daniel G. Wilson
Feb 29 '12 at 20:55
Thanks! Will read that tomorrow. Any idea why this won't work?[addObject:@"%d", action];
– Liuhu
Feb 29 '12 at 22:06
1
addObjecttakes a string and doesn't do formatting. You want:[array addObject:[NSString stringWithFormat:@"%d", action]];
– gregheo
Feb 29 '12 at 23:00
Thank you. Love peple who are willing to help.
– Liuhu
Mar 1 '12 at 14:40
add a comment |
I prefer this to [[NSMutableArray array] retain], plus you explained why your solution works. +1
– Daniel G. Wilson
Feb 29 '12 at 20:55
Thanks! Will read that tomorrow. Any idea why this won't work?[addObject:@"%d", action];
– Liuhu
Feb 29 '12 at 22:06
1
addObjecttakes a string and doesn't do formatting. You want:[array addObject:[NSString stringWithFormat:@"%d", action]];
– gregheo
Feb 29 '12 at 23:00
Thank you. Love peple who are willing to help.
– Liuhu
Mar 1 '12 at 14:40
I prefer this to [[NSMutableArray array] retain], plus you explained why your solution works. +1
– Daniel G. Wilson
Feb 29 '12 at 20:55
I prefer this to [[NSMutableArray array] retain], plus you explained why your solution works. +1
– Daniel G. Wilson
Feb 29 '12 at 20:55
Thanks! Will read that tomorrow. Any idea why this won't work?
[addObject:@"%d", action];– Liuhu
Feb 29 '12 at 22:06
Thanks! Will read that tomorrow. Any idea why this won't work?
[addObject:@"%d", action];– Liuhu
Feb 29 '12 at 22:06
1
1
addObject takes a string and doesn't do formatting. You want: [array addObject:[NSString stringWithFormat:@"%d", action]];– gregheo
Feb 29 '12 at 23:00
addObject takes a string and doesn't do formatting. You want: [array addObject:[NSString stringWithFormat:@"%d", action]];– gregheo
Feb 29 '12 at 23:00
Thank you. Love peple who are willing to help.
– Liuhu
Mar 1 '12 at 14:40
Thank you. Love peple who are willing to help.
– Liuhu
Mar 1 '12 at 14:40
add a comment |
Try out this code
actions1 = [[NSMutableArray alloc] init];
Hope this helps.
edited Mar 24 '12 at 19:50
Parth Bhatt
14.2k25121212
answered Feb 29 '12 at 20:53
VinnieVinnie
1,3771013
add a comment |
Try out this code
actions1 = [[NSMutableArray alloc] init];
Hope this helps.
edited Mar 24 '12 at 19:50
Parth Bhatt
14.2k25121212
answered Feb 29 '12 at 20:53
VinnieVinnie
1,3771013
add a comment |
Try out this code
actions1 = [[NSMutableArray alloc] init];
Hope this helps.
edited Mar 24 '12 at 19:50
Parth Bhatt
14.2k25121212
answered Feb 29 '12 at 20:53
VinnieVinnie
1,3771013
Try out this code
actions1 = [[NSMutableArray alloc] init];
Hope this helps.
edited Mar 24 '12 at 19:50
Parth Bhatt
14.2k25121212
answered Feb 29 '12 at 20:53
VinnieVinnie
1,3771013
edited Mar 24 '12 at 19:50
Parth Bhatt
14.2k25121212
edited Mar 24 '12 at 19:50
Parth Bhatt
14.2k25121212
edited Mar 24 '12 at 19:50
Parth Bhatt
14.2k25121212
14.2k25121212
answered Feb 29 '12 at 20:53
VinnieVinnie
1,3771013
answered Feb 29 '12 at 20:53
VinnieVinnie
1,3771013
answered Feb 29 '12 at 20:53
VinnieVinnie
1,3771013
1,3771013
add a comment |
add a comment |
Alternatively, in your header file:
@property(nonatomic, strong)NSMutableArray *actions1;
Then in the implantation file:
@synthesize actions1 = _actions1;
Then you can access your array as self.actions1.
edited Nov 22 '18 at 1:49
Pang
7,0131666105
answered Feb 29 '12 at 22:06
dbrajkovicdbrajkovic
3,42511314
add a comment |
Alternatively, in your header file:
@property(nonatomic, strong)NSMutableArray *actions1;
Then in the implantation file:
@synthesize actions1 = _actions1;
Then you can access your array as self.actions1.
edited Nov 22 '18 at 1:49
Pang
7,0131666105
answered Feb 29 '12 at 22:06
dbrajkovicdbrajkovic
3,42511314
add a comment |
Alternatively, in your header file:
@property(nonatomic, strong)NSMutableArray *actions1;
Then in the implantation file:
@synthesize actions1 = _actions1;
Then you can access your array as self.actions1.
edited Nov 22 '18 at 1:49
Pang
7,0131666105
answered Feb 29 '12 at 22:06
dbrajkovicdbrajkovic
3,42511314
Alternatively, in your header file:
@property(nonatomic, strong)NSMutableArray *actions1;
Then in the implantation file:
@synthesize actions1 = _actions1;
Then you can access your array as self.actions1.
edited Nov 22 '18 at 1:49
Pang
7,0131666105
answered Feb 29 '12 at 22:06
dbrajkovicdbrajkovic
3,42511314
edited Nov 22 '18 at 1:49
Pang
7,0131666105
edited Nov 22 '18 at 1:49
Pang
7,0131666105
edited Nov 22 '18 at 1:49
Pang
7,0131666105
7,0131666105
answered Feb 29 '12 at 22:06
dbrajkovicdbrajkovic
3,42511314
answered Feb 29 '12 at 22:06
dbrajkovicdbrajkovic
3,42511314
answered Feb 29 '12 at 22:06
dbrajkovicdbrajkovic
3,42511314
3,42511314
add a comment |
add a comment |
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Regarding the [addObject:@"%d", action]; - please elaborate what does it mean "didn't seem to work either".. what's happening ? and BTW - why aren't you storing the int as a NSNumber object ? ([NSNumber numberWithInt:1])
– Guys
Feb 29 '12 at 22:26