How to remove the null or space from string? , use these two methods..

-(NSString*) trimString:(NSString *)theString {

NSString *theStringTrimmed = [theString stringByTrimmingCharactersInSet: [NSCharacterSet whitespaceAndNewlineCharacterSet]];

return theStringTrimmed;

}

-(NSString *) removeNull:(NSString *) string {    

    

NSRange range = [string rangeOfString:@"null"];

    //NSLog(@"in removeNull : %d  >>>> %@",range.length, string);

if (range.length > 0 || string == nil) {

string = @"";

}

string = [self trimString:string];

return string;

}

And call it like bellow...

        NSString *str = yourStringValue;

        str = [self removeNull:str];