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Show NSData as binary in NSString

I have a binary file (file.bin) in the resources folder, I want to read it and show it as binary. The idea is to put binary information in an array, but first I try to show it in UILabel, for example:

`NSData * databuffer; NSString * stringdata;

NSString *filePath = [[NSBundle mainBundle] pathForResource:@"file" ofType:@"bin"];  
NSData *myData = [NSData dataWithContentsOfFile:filePath];

if (myData) {  
        stringdata = [NSString stringWithFormat:@"%@",[myData description]]; 
        labelfile.text = stringdata;
}

`

But it shows the data in HEX. How can I do this in binary format to put it in NSMutableArray? Thank.

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1 answer

I do not know if there is something original, but I can offer a workaround. Why don't you make your own function that performs the conversion. Here is my example:

At this point you will get the Hex values:

NSString *str = @"Af01";
NSMutableString *binStr = [[NSMutableString alloc] init];

for(NSUInteger i=0; i<[str length]; i++)
{
    [binStr appendString:[self hexToBinary:[str characterAtIndex:i]]];
}
NSLog(@"Bin: %@", binStr);

Workaround:

- (NSString *) hexToBinary:(unichar)myChar
{
    switch(myChar)
    {
        case '0': return @"0000";
        case '1': return @"0001";
        case '2': return @"0010";
        case '3': return @"0011";
        case '4': return @"0100";
        case '5': return @"0101";
        case '6': return @"0110";
        case '7': return @"0111";
        case '8': return @"1000";
        case '9': return @"1001";
        case 'a':
        case 'A': return @"1010";
        case 'b':
        case 'B': return @"1011";
        case 'c':
        case 'C': return @"1100";
        case 'd':
        case 'D': return @"1101";
        case 'e':
        case 'E': return @"1110";
        case 'f':
        case 'F': return @"1111";
    }
    return @"-1"; //means something went wrong, shouldn't reach here!
}

Hope this helps!

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