(Objective-C) JSON Iterate Members

Demonstrates how to loop over the immediate members of a JSON object.

Chilkat Objective-C Library Downloads MAC OS X (Cocoa) Libs iOS Libs

#import <CkoJsonObject.h>
#import <NSString.h>

CkoJsonObject *json = [[CkoJsonObject alloc] init];

NSString *jsonStr = @"{ \"id\": 1, \"name\": \"A green door\", \"tags\": [\"home\", \"green\"], \"price\": 125 }";

BOOL success = [json Load: jsonStr];
if (success != YES) {
    NSLog(@"%@",json.LastErrorText);
    return;
}

int numMembers = [json.Size intValue];
int i;
for (i = 0; i <= numMembers - 1; i++) {

    NSString *name = [json NameAt: [NSNumber numberWithInt: i]];
    NSString *value = [json StringAt: [NSNumber numberWithInt: i]];

    NSLog(@"%@%@%@",name,@": ",value);

    int iValue = [[json IntAt: [NSNumber numberWithInt: i]] intValue];
    NSLog(@"%@%@%d",name,@" as integer: ",iValue);

}

// Note: The StringAt method returns the value as a string regardless of the type.
// If the value is a JSON array (such as for ["home", "green"]), then the JSON encoding
// of the entire array is returned.

// The IntAt method returns the value as an integer.  If the value does not convert to 
// an integer, then 0 is returned