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How to create UIIMage from Hex Data?

privateson
privateson asked
on
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Last Modified: 2012-05-09
Hi,
I am using XMPP and XMPP will give me a photo data like the following:
a3f549fa9705e7ead2905de0b6a804227ecdd404

So I assume the above data is the photo data and I assume that it's Hex data. (maybe I am wrong)

So I use the following to create the UIImage, but it doesn't work
anyone know how to do it?

NSString* command = @"a3f549fa9705e7ead2905de0b6a804227ecdd404";
	command = [command stringByReplacingOccurrencesOfString:@" " withString:@""];
	NSMutableData *commandToSend= [[NSMutableData alloc] init];
	unsigned char whole_byte;
	char byte_chars[3] = {'\0','\0','\0'};
	int i;
	for (i=0; i < [command length]/2; i++) {
		byte_chars[0] = [command characterAtIndex:i*2];
		byte_chars[1] = [command characterAtIndex:i*2+1];
		whole_byte = strtol(byte_chars, NULL, 16);
		[commandToSend appendBytes:&whole_byte length:1]; 
	}
	
	UIImage *image = [UIImage imageWithData: commandToSend];

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