Convert JSON into XML

If you want to convert the JSON data to XML as we see by iOS there is no by default feature to convert JSON into XML. I have created a method which will convert JSON into XML. The code is written in objective-c, if you want to use that code in swift you have created a class and put a function in that class. After that, you have to insert the .h file into the bridging header (#import “YourClass.h”). then call the method by using:-

let dict = ["yourJson" : signalName ] as [String : Any]
let xmlWriter1 = YourClass()
var xmlString = xmlWriter1.convertDictionary(toXML: dict, withStartElement: "HeaderName", isFirstElement: true)
print(xmlString!)

let dict = ["yourJson" : signalName ] as [String : Any]

let xmlWriter1 = YourClass()

var xmlString = xmlWriter1.convertDictionary(toXML: dict, withStartElement: "HeaderName", isFirstElement: true)

print(xmlString!)

Here is the code:

- (NSString*)convertDictionaryToXML:(NSDictionary*)dictionary withStartElement:(NSString*)startElement isFirstElement:(BOOL) isFirstElement
{
    NSMutableString *xml = [[NSMutableString alloc] initWithString:@""];
    NSArray *arr = [dictionary allKeys];
    if (isFirstElement)
    {
        [xml appendString:@"<?xml version=\"1.0\" encoding=\"utf-8\"?>\n"];
    }
    [xml appendString:[NSString stringWithFormat:@"<%@>\n", startElement]];
    for(int i=0; i < [arr count]; i++)
    {
        NSString *nodeName = [arr objectAtIndex:i];
        id` nodeValue = [dictionary objectForKey:nodeName];
        if([nodeValue isKindOfClass:[NSArray class]])
        {
            if([nodeValue count]>0)
            {
                for(int j=0;j<[nodeValue count];j++)
                {
                    id value = [nodeValue objectAtIndex:j];
                    if([value isKindOfClass:[NSDictionary class]])
                    {
                        [xml appendString:[self convertDictionaryToXML:value withStartElement:nodeName isFirstElement:NO]];
                    }
                }
            }
        }
        else if([nodeValue isKindOfClass:[NSDictionary class]])
        {
            [xml appendString:[self convertDictionaryToXML:nodeValue withStartElement:nodeName isFirstElement:NO]];
        }
        else
        {
//            if([nodeValue length]>0){
                [xml appendString:[NSString stringWithFormat:@"<%@>",nodeName]];
                [xml appendString:[NSString stringWithFormat:@"%@",[dictionary objectForKey:nodeName]]];
                [xml appendString:[NSString stringWithFormat:@"</%@>\n",nodeName]];
//            }
        }
    }
    [xml appendString:[NSString stringWithFormat:@"</%@>\n",startElement]];   
    NSString *finalxml=[xml stringByReplacingOccurrencesOfString:@"&" withString:@"&amp;"];  
    return finalxml;
}

- (NSString*)convertDictionaryToXML:(NSDictionary*)dictionary withStartElement:(NSString*)startElement isFirstElement:(BOOL) isFirstElement

{

NSMutableString *xml = [[NSMutableString alloc] initWithString:@""];

NSArray *arr = [dictionary allKeys];

if (isFirstElement)

{

[xml appendString:@"<?xml version=\"1.0\" encoding=\"utf-8\"?>\n"];

}

[xml appendString:[NSString stringWithFormat:@"<%@>\n", startElement]];

for(int i=0; i < [arr count]; i++)

{

NSString *nodeName = [arr objectAtIndex:i];

id` nodeValue = [dictionary objectForKey:nodeName];

if([nodeValue isKindOfClass:[NSArray class]])

{

if([nodeValue count]>0)

{

for(int j=0;j<[nodeValue count];j++)

{

id value = [nodeValue objectAtIndex:j];

if([value isKindOfClass:[NSDictionary class]])

{

[xml appendString:[self convertDictionaryToXML:value withStartElement:nodeName isFirstElement:NO]];

}

else if([nodeValue isKindOfClass:[NSDictionary class]])

{

[xml appendString:[self convertDictionaryToXML:nodeValue withStartElement:nodeName isFirstElement:NO]];

}

else

{

// if([nodeValue length]>0){

[xml appendString:[NSString stringWithFormat:@"<%@>",nodeName]];

[xml appendString:[NSString stringWithFormat:@"%@",[dictionary objectForKey:nodeName]]];

[xml appendString:[NSString stringWithFormat:@"</%@>\n",nodeName]];

// }

}

[xml appendString:[NSString stringWithFormat:@"</%@>\n",startElement]];

NSString *finalxml=[xml stringByReplacingOccurrencesOfString:@"&" withString:@"&"];

return finalxml;

}

dictionary iOS json Objective - C swift XML

bhavuk chawla 10 January 2017

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