Converting a Base64 String into a UIImage

Question

I have looked at similar answers to this type of question but am still falling short of converting a Base64 encoded string into a UIImage correctly. I have used http://www.freeformatter.com/base64-encoder.html to test my string and can successfully get an image back as a response.

However, when I use initWithBase64EncodedString, I get a nil response. Below is the code I am using and an example of the Base64 string that I used to test with. What am I missing here?

Code:

imageData = [[NSData alloc] initWithBase64EncodedString:checkBytesString options:0]; checkImage = [UIImage imageWithData:imageData];

String (It is rather large so I am sharing it via OneDrive):

https://onedrive.live.com/redir?resid=60AA391B8FEA9C36!107&authkey=!AFK_y5UHOFsdYsKZI&ithint=file%2c.rtf

bmjohns · Accepted Answer · 2017-04-17 13:56:57Z

2

Answer was to use an external library, NSData+Base64. It implements method dataFromBase64String that returned imageData properly so it could be converted into an image.

https://github.com/l4u/NSData-Base64

imageData = [NSData dataFromBase64String:frontCheckBytesString];
checkImage = [UIImage imageWithData:imageData];

edited Apr 17, 2017 at 13:56

answered Mar 31, 2014 at 14:49

bmjohns

6,5101 gold badge35 silver badges40 bronze badges

Sign up to request clarification or add additional context in comments.

3 Comments

Muju Over a year ago

Your code showing no known method for dataFromBase64String.

bmjohns Over a year ago

@Muju My answer was using an external library, I updated to include the link.

Muju Over a year ago

sorry I have not seen your whole answer. Your answer solve my problem. Thanks you very much.

Vaibhav Saran · Accepted Answer · 2015-09-04 10:18:14Z

1

Simple in iOS 7 onwards

- (UIImage *)decodeBase64ToImage:(NSString *)strEncodeData
{
    NSData *data = [[NSData alloc]initWithBase64EncodedString:strEncodeData options:NSDataBase64DecodingIgnoreUnknownCharacters];
    return [UIImage imageWithData:data];
}

UIImage *zeroImage = [[UIImage alloc]init];
if(![strb64Image isEqualToString:@""] && strb64Image)
{
    zeroImage = [self decodeBase64ToImage:strB64Image];
}

answered Sep 4, 2015 at 10:18

Vaibhav Saran

12.8k3 gold badges68 silver badges75 bronze badges

Collectives™ on Stack Overflow

Converting a Base64 String into a UIImage

2 Answers 2

3 Comments

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

3 Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Related