![ASIHTTPRequest (2) - (IBAction)grabURL:(id)sender { NSURL *url = [NSURL URLWithString:@"http://allseeing-i.com"]; ASIHTTPRequest *request = [ASIHTTPRequest requestWithURL:url]; [request startSynchronous]; NSError *error = [request error]; if (!error) { NSString *response = [request responseString]; } }](https://image.slidesharecdn.com/meetupuikitprogramming-100820145451-phpapp01/85/Meetup-uikit-programming-8-320.jpg)
![ASIHTTPRequest (3) - (IBAction)grabURLInBackground:(id)sender { NSURL *url = [NSURL URLWithString:@"http://allseeing-i.com"]; ASIHTTPRequest *request = [ASIHTTPRequest requestWithURL:url]; [request setDelegate:self]; [request startAsynchronous]; } - (void)requestFinished:(ASIHTTPRequest *)request { // Use when fetching text data NSString *responseString = [request responseString]; // Use when fetching binary data NSData *responseData = [request responseData]; } - (void)requestFailed:(ASIHTTPRequest *)request { NSError *error = [request error]; }](https://image.slidesharecdn.com/meetupuikitprogramming-100820145451-phpapp01/85/Meetup-uikit-programming-9-320.jpg)
![JSON (2) Serialized hash/dictionary: {“key1”: “value1”, “key2”: “value2”} Serialized array: [“value1”, “value2”, “value3”] Mixed object (array of dictionaries): [{“name”: “Joao”, “ssn”:”12345678”}, {“name”:”Barry”, “ssn”:”98765432”}]](https://image.slidesharecdn.com/meetupuikitprogramming-100820145451-phpapp01/85/Meetup-uikit-programming-11-320.jpg)
![JSON parsing example NSArray *list; NSString *jsonString = @"[\"Meetup\", \"is\", \"cool\"]"; list = [jsonString JSONValue]; NSLog(@"first entry: %@", [list objectAtIndex:0]); NSLog(@"second entry: %@", [list objectAtIndex:1]); NSLog(@"third entry: %@", [list objectAtIndex:2]); [json release];](https://image.slidesharecdn.com/meetupuikitprogramming-100820145451-phpapp01/85/Meetup-uikit-programming-12-320.jpg)
Meetup uikit programming
- 1. João Prado Maia Ipanema Labs, LLC http://ipanemalabs.com UIKit Programming (and some network stuff too)
- 2. Who? Web programmer by day, iOS developer by night. Consultant on iOS development projects. Contact me at http://ipanemalabs.com Few apps on App Store since 2008. Personal site at http://pessoal.org
- 3. Tonight’s session Hands on Lots of code to go through Ask questions at any time!
- 4. Table views Standard classes: UINavigationController UIViewController UITableViewController Goal: build a simple app with a drill down interface.
- 5. Saving data to SQLite FMDB! http://code.google.com/p/flycode/source/browse/trunk/fmdb Open source wrapper on top of SQLite. Actively maintained; easy to work with. Goal: change previous example to load information from a SQLite database.
- 6. Dealing with an API ASIHTTPRequest http://allseeing-i.com/ASIHTTPRequest/ Much more convenient than NSURLConnection. Open source; very easy to use. Goal: modify previous example to load data from an API dynamically.
- 7. ASIHTTPRequest Advanced features available to you in an easy to use wrapper: Download data to memory or directly to file Easy to upload files through POST Automatic progress indicators for downloads/uploads Asynchronous/Synchronous requests and persistent connections etc Good documentation with lots of examples
- 8. ASIHTTPRequest (2) - (IBAction)grabURL:(id)sender { NSURL *url = [NSURL URLWithString:@"http://allseeing-i.com"]; ASIHTTPRequest *request = [ASIHTTPRequest requestWithURL:url]; [request startSynchronous]; NSError *error = [request error]; if (!error) { NSString *response = [request responseString]; } }
- 9. ASIHTTPRequest (3) - (IBAction)grabURLInBackground:(id)sender { NSURL *url = [NSURL URLWithString:@"http://allseeing-i.com"]; ASIHTTPRequest *request = [ASIHTTPRequest requestWithURL:url]; [request setDelegate:self]; [request startAsynchronous]; } - (void)requestFinished:(ASIHTTPRequest *)request { // Use when fetching text data NSString *responseString = [request responseString]; // Use when fetching binary data NSData *responseData = [request responseData]; } - (void)requestFailed:(ASIHTTPRequest *)request { NSError *error = [request error]; }
- 10. JSON JSON - JavaScript Object Notation Serialization format much less verbose than XML Perfect for web services that need to return information for mobile clients iOS library: json-framework http://code.google.com/p/json-framework/ Open source (BSD) library
- 11. JSON (2) Serialized hash/dictionary: {“key1”: “value1”, “key2”: “value2”} Serialized array: [“value1”, “value2”, “value3”] Mixed object (array of dictionaries): [{“name”: “Joao”, “ssn”:”12345678”}, {“name”:”Barry”, “ssn”:”98765432”}]
- 12. JSON parsing example NSArray *list; NSString *jsonString = @"[\"Meetup\", \"is\", \"cool\"]"; list = [jsonString JSONValue]; NSLog(@"first entry: %@", [list objectAtIndex:0]); NSLog(@"second entry: %@", [list objectAtIndex:1]); NSLog(@"third entry: %@", [list objectAtIndex:2]); [json release];