CODEWITHSUNDEEP
ios.netobjective-cwcfwsdl
khanh.tran.vinh
khanh.tran.vinh

Reputation: 665

Convert UIImage to byte array, and send to WCF wsdl .NET remote server

I searched high and low for the past week, none of the similar questions on SO has solved my problem.

I'm trying to upload a UIImage to a .NET wcf (wsdl?). It needs to be in the form of a byte array.

I tried

NSData *data = [[NSData alloc]initWithData:UIImageJPEGRepresentation(Image, 1)];
NSUInteger len = [data length];
Byte *byteData = (Byte*)malloc(len);
memcpy(byteData, [data bytes], len);

and byteData returns

ˇÿˇ‡

That doesn't look like a byte array I'm sure. What does a byte array suppose to look like? I also tried called NSData description, and various others with no success.

I also tried 

[self.imageFile base64EncodedStringWithOptions:NSDataBase64EncodingEndLineFeed];

and get back

/9j/4AAQSkZJRgABAQEAJAAkAAD/4QCMRXhpZgAATU0AKgAAAAgABQESAAMAAAABAAEAAAEaAAUAAAABAAAASgEbAAUAAAABAAAAUgEoAAMAAAABAAIAAIdpAAQAAAABAAAAWgAAAAAAAAAkA

Is that what a byte array suppose to look like? I would guess a byte array is suppose to look like the following.

[244, 22, 244, 4, 32, etc.....]

The byte array needs to be embedded in an XML. Any help is appreciated. Thanks!

Upvotes: 1

Views: 637

Answers (2)

ManiaChamp
ManiaChamp

Reputation: 857

I think better approach will be if you will use Base64 Encoding .

Upvotes: 0

Duncan C
Duncan C

Reputation: 131426

The code you posted will convert a UIImage to a binary JPEG image in an NSData object, then extract the byte values from the NSData. That IS a byte array. (A block of memory containing bytes of binary data.)

It sounds like what you really want to do is format your binary data in XML format. That is a different question.

I did a Google search on "How do you represent binary data in XML" and it seems that Base64 encoding is the consensus. I suggest you look into Base64 encoding.

Upvotes: 1

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