Question

My issue is to display file coming from a XML Response on the iPhone using UIDocumentInteraction Controller. I am unable to convert this file.The guy who is doing web-service is saying that its a binary data.
Please refer to the following XML Response

< NewDataSet>
< Table diffgr:id=”Table1″
msdata:rowOrder=”0″>
< FILE >

UEsDBBQABgAIAAAAIQDd/JU3ZgEAACAFAAATAAgCW0NvbnRlbnRfVHlwZXNdLnhtbCCiBAIooAACAAAAAAAAAAAAAA
< /FILE >
< FILENAME >New Word Doucment < / FILENAME >
<
FILETYPE >doc< /FILETYPE >
< RESULT>SUCCESS< /RESULT >
<
/Table >
< /NewDataSet >

I have trimmed the FILE tag.. it will be really very huge

I have parsed the xml and stored the content of < FILE > tag into “filePath” I am doing the following

const char *utfString = [filePath UTF8String];
//filepath contains the string for FILE
NSData *myData = [NSData dataWithBytes: utfString length: strlen(utfString)];

//NSData *myData = [Base64 decode:filePath];
NSString *docDir = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) objectAtIndex:0];
//       
NSString *file = [NSString stringWithFormat:@"%@.%@", fileName,fileType];
NSString *newPath = [docDir stringByAppendingPathComponent:file];
[myData writeToFile:newPath atomically:YES];
myData=nil;

Please let me know how to parse this XML and save the file or just display it.

Answer 1

The filestring should be decoded using base64 decoding. I have used the code provided in the following url Base 64 Decoding