Byte array in objective-c

Question

How can I create a byte array in Objective-C?

I have some data like this:0x12, 0x23, 0x34, 0x45, 0x56, 0x67, 0x78, 0x89, 0x12, 0x23, 0x34, 0x45, 0x56, 0x67, 0x78, 0x89, that I want to prepare as a byte array.

Solution 1

You can simply use plain C syntax, which is available in Objective-C:

const char myByteArray[] = {
    0x12,0x23,0x34,0x45,
    0x56,0x67,0x78,0x89,
    0x12,0x23,0x34,0x45,
    0x56,0x67,0x78,0x89 };

Solution 2

Either use the plain C solution given by mouviciel or read the class description of NSData and NSMutableData.