CODEWITHSUNDEEP
iosobjective-c
spectre_d2
spectre_d2

Reputation: 203

How to create a variable sized float type array in objective c?

I need a float type array; don't know the size of array initially. When I will get the value of size, I want to add some float values in it by a for loop. This array need to be global because I want to update it from another view controller class. How can I do this?

For this I declared a NSMutableArray type object and add float value by a for loop.

@property (nonatomic, strong) NSMutableArray   *speedRate;

for (NSInteger i = 0; i < self.assetArray.count; i++){
   [self.speedRate addObject:[NSNumber numberWithFloat:1.0f]];
    }

NSLog(@"speedRate.count =%lu",(unsigned long)self.speedRate.count);
NSLog(@"value =%f",[[self.speedRate objectAtIndex:1]floatValue]);

But I got speedRate.count =0 and value =0.000 . I want speedRate.count will be same as self.assetArray.count and value =1.0 . How can I achieve this?

Upvotes: 0

Views: 81

Answers (1)

Gereon
Gereon

Reputation: 17844

Your code never actually allocates the array. Add 

self.speedRate = [[NSMutableArray alloc] init];

before the loop.

Upvotes: 1

Related Questions