-base64Encoding return type defaults to id

Question

In my application when i try with following coding i get the warning as

Code

[UIImageJPEGRepresentation(petAvadar.image, 1.0)base64Encoding]

WARNING

Instance method '-base64Encoding' not found (return type defaults to 'id')

How to remove this warning,Please help me to solve.

Answer 1

You need to declare your function in the header file.

You should add a line like this :

-(returnType)base64Encoding;

Where returnType is the type returned by your method, like NSString*, NSInteger, void or whatever your method returns.

Answer 2

Then convert your UIImage object into NSData the following way:

NSData *imageData = UIImageJPEGRepresentation(image, 1.0);

And then apply Base64 encoding to convert it into a base64 encoded string:

NSString *encodedString = [imageData base64Encoding];

once check this one

Answer 3

Make sure that you have donlaoded Base64 lib classes from here

then import Base64.h use below code snip

For Encoding Image to Base64

NSData* data = UIImageJPEGRepresentation(yourImage, 1.0f);
 [Base64 initialize];
 NSString *strEncoded = [Base64 encode:data];

and Decode Base64 as image:

[Base64 initialize]; 
 NSData* data = [Base64 decode:strEncoded ];;
 image.image = [UIImage imageWithData:data];

Alos you may like to check this and this link as well