Mobile Services and iOS

AppDelegate.h

@interface AppDelegate : UIResponder <UIApplicationDelegate>

@property (strong, nonatomic) UIWindow *window;
@property (strong, nonatomic) NSArray *todos;

@end

AppDelegate.m

@implementation AppDelegate

@synthesize todos;

Constants.h

@interface Constants : NSObject
    extern NSString *kGetAllUrl;
    extern NSString *kAddUrl;
    extern NSString *kUpdateUrl;
    extern NSString *kMobileServiceAppId;
@end

Constants.m

@implementation Constants
    NSString *kGetAllUrl = @"https://yoursubdomain.azure-mobile.net/tables/TodoItem?$filter=(complete%20eq%20false)";
    NSString *kAddUrl = @"https://yoursubdomain.azure-mobile.net/tables/TodoItem";
    NSString *kUpdateUrl = @"https://yoursubdomain.azure-mobile.net/tables/TodoItem/";
    NSString *kMobileServiceAppId = @"yourappkey";
@end

loadTodos

-(void) loadTodos {
    NSMutableURLRequest *theRequest=[NSMutableURLRequest
         requestWithURL:
         [NSURL URLWithString: kGetAllUrl]
         cachePolicy:NSURLRequestUseProtocolCachePolicy
         timeoutInterval:60.0];
    [theRequest setHTTPMethod:@"GET"];
    [theRequest addValue:@"application/json" forHTTPHeaderField:@"ACCEPT"];
    [theRequest addValue:kMobileServiceAppId forHTTPHeaderField:@"X-ZUMO-APPLICATION"];
    
    NSURLConnection *theConnection=[[NSURLConnection alloc] initWithRequest:theRequest delegate:self];
    if (theConnection) {
        receivedData = [NSMutableData data];
    } else {
        // We should inform the user that the connection failed.
    }
}

NSUrlConnectionDelegate Methods

#pragma NSUrlConnectionDelegate Methods

-(void)connection:(NSConnection*)conn didReceiveResponse:(NSURLResponse *)response {
    if (receivedData == NULL) {
        receivedData = [[NSMutableData alloc] init];
    }
    [receivedData setLength:0];
    NSLog(@"didReceiveResponse: responseData length:(%d)", receivedData.length);
}

- (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data {
    // Append the new data to receivedData.
    // receivedData is an instance variable declared elsewhere.
    [receivedData appendData:data];
}

- (void)connection:(NSURLConnection *)connection
  didFailWithError:(NSError *)error {
    // inform the user
    NSLog(@"Connection failed! Error - %@ %@",
          [error localizedDescription],
          [[error userInfo] objectForKey:NSURLErrorFailingURLStringErrorKey]);
}

- (void)connectionDidFinishLoading:(NSURLConnection *)connection {
    NSError* error;
    NSArray* json = [NSJSONSerialization
                     JSONObjectWithData:receivedData
                     options:kNilOptions
                     error:&error];
    AppDelegate *appDelegate = (AppDelegate *)[[UIApplication sharedApplication] delegate];
    appDelegate.todos = json;
    [self.tableView reloadData];
}

Table View Methods

#pragma mark - Table view data source

- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
    return 1;
}

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
    // Return the number of rows in the section.
    AppDelegate *appDelegate = (AppDelegate *)[[UIApplication sharedApplication] delegate];
    return [appDelegate.todos count];
}

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
    static NSString *CellIdentifier = @"Cell";
    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
    if (cell == nil) {
        cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier];
        cell.accessoryType = UITableViewCellAccessoryDisclosureIndicator;
    }
    
    NSLog( @"Indexpath %i", [ indexPath row ] );
    AppDelegate *appDelegate = (AppDelegate *)[[UIApplication sharedApplication] delegate];
    cell.textLabel.text = [[appDelegate.todos objectAtIndex:[indexPath row]] objectForKey:@"text"];
    return cell;
}

#pragma mark - Table view delegate

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
}

TodoDetailsViewController.h

@class TodoDetailsViewController;

@protocol TodoDetailsViewControllerDelegate <NSObject>
- (void)todoDetailsViewController:(TodoDetailsViewController *)controller didFinishTodo:(NSString *)todoId andTodoText:(NSString *)todoText;
@end

@interface TodoDetailsViewController : UIViewController<NSURLConnectionDelegate> {
    @private
    NSNumber* todoId;
    NSMutableData* receivedData;
    NSHTTPURLResponse* httpResponse;
}
@property (weak, nonatomic) IBOutlet UIView *viewCreateTodo;
@property (weak, nonatomic) IBOutlet UIView *viewDetailsTodo;
@property (weak, nonatomic) IBOutlet UITextField *txtTodoText;
@property (weak, nonatomic) IBOutlet UILabel *lblTodoText;
@property (nonatomic, weak) id <TodoDetailsViewControllerDelegate> delegate;
@property (nonatomic, weak) NSString *todoText;
@property BOOL addingNewTodo;
- (IBAction)tapSaveTodo:(id)sender;
- (IBAction)tapMarkTodoComplete:(id)sender;

@end

ViewController viewDidLoad

- (void)viewDidLoad {
    [super viewDidLoad];
	// Do any additional setup after loading the view, typically from a nib.
    [self loadTodos];
}

ViewController.h Header Initial

@interface ViewController : UIViewController <UITableViewDelegate, UITableViewDataSource,
    NSURLConnectionDelegate> {
    @private
    NSMutableData* receivedData;
}
@property (weak, nonatomic) IBOutlet UITableView *tableView;
@end