Question

I am receiving a NSData containing Hexa values as give below

   <aaaaaaa aaaaaab>

I am just getting this by converting NSData to NSString , now I need to present above String in following format

AA:AA:AA:AA  AA:AA:AA:AB

Please help how can I get above format , please help

Answer 1

You can try:

str = @"<aaaaaaa aaaaaab>";
str = [str stringByReplacingOccurrencesOfString:@"<" withString:@""]; //Remove <
str = [str stringByReplacingOccurrencesOfString:@" " withString:@""]; //Remove space
str = [str stringByReplacingOccurrencesOfString:@">" withString:@""]; //Remove >
NSMutableString *mStr = [[NSMutableString alloc] initWithString:str];

for (int i=2; i< [mStr length]; i+=3) {
    [mStr insertString:@":" atIndex:i];
}
for (int i=11; i< [mStr length]; i+=12) {
    [mStr insertString:@" " atIndex:i];
}

This will remove spaces, <, and >. Then add in : and spaces.