问题
I am new to iOS programming and i am trying to get a textual representation of an NSData object as a NSString
For example if the NSData object is:
<07010013 01020000 09000100 000199c2>
I want to convert that to:
"070100130102000009000100000199c2"
How can I do that?
回答1:
HINT#1 //general answer
NSString provides an initializer for this purpose. You can see more info using the docs here.
NSString * str = [[NSString alloc] initWithData: mynsdata
encoding:NSUTF8StringEncoding];
Assuming you use ARC.
HINT#2 // the answer for hex nsdata
int len = [mynsdata length];
NSMutableString *str = [NSMutableString stringWithCapacity:len*2];
const unsigned char *nsdata_bytes = [mynsdata bytes];
for (int i = 0; i < len; ++i) {
[str appendFormat:@"%02x", nsdata_bytes[i]];
}
来源：https://stackoverflow.com/questions/19066246/literal-converstion-nsdata-to-nsstring