How to parse xml and simultaneously save to sqlite asynchronously in iOS 7?

Question

I am parsing XML Document by using TBXML but I have to Parse XML and store data to SQLite asynchronously with notifications [that is Parsing and storing data in SQLite]. Please help me to overcome this problems. Thanks in advance....

Answer 1

For that You can use NSNotificationCenter and GCD,

First set NSNotificationCenter for your process using,

[[NSNotificationCenter defaultCenter] addObserver:self 
                                             selector:@selector(dataStore) 
                                                 name:@"dataStoreComplete" object:nil];


- (void)dataStore
{
    NSLog(@"Received Notification - Data stored in databse");
}

You GCD for parsing and storing in database

dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{

    // switch to a background thread and perform your expensive operation
 //  parse and store all data in sqlite,


    dispatch_async(dispatch_get_main_queue(), ^{
        // switch back to the main thread to update your UI
 [[NSNotificationCenter defaultCenter] postNotificationName:@"dataStoreComplete" object:nil]; 
    });
});