ios - Open Specific View when Opening App from Notification

Question

I have just added push notifications to my app. I'm wanting to have so that when a user opens the app from a notification, it will open a specific view controller and not my rootViewController. Here is my AppDelegate:

#import "KFBAppDelegate.h"
#import "KFBViewController.h"
#import "AboutUs.h"
#import "ContactUs.h"
#import "KYFB.h"
#import "KFBNavControllerViewController.h"
#import "KFBTabBarViewController.h"
#import "RSFM.h"
#import "LegislatorInfo.h"
#import "Events.h"
#import "ActionAlertsViewController.h"
#import "UAirship.h"
#import "UAPush.h"
#import "UAAnalytics.h"

@implementation KFBAppDelegate

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
    // This prevents the UA Library from registering with UIApplcation by default when
    // registerForRemoteNotifications is called. This will allow you to prompt your
    // users at a later time. This gives your app the opportunity to explain the benefits
    // of push or allows users to turn it on explicitly in a settings screen.
    // If you just want everyone to immediately be prompted for push, you can
    // leave this line out.
    // [UAPush setDefaultPushEnabledValue:NO];

    //Create Airship options dictionary and add the required UIApplication launchOptions
    NSMutableDictionary *takeOffOptions = [NSMutableDictionary dictionary];
    [takeOffOptions setValue:launchOptions forKey:UAirshipTakeOffOptionsLaunchOptionsKey];

    // Call takeOff (which creates the UAirship singleton), passing in the launch options so the
    // library can properly record when the app is launched from a push notification. This call is
    // required.
    //
    // Populate AirshipConfig.plist with your app's info from https://go.urbanairship.com
    [UAirship takeOff:takeOffOptions];

    // Set the icon badge to zero on startup (optional)
    [[UAPush shared] resetBadge];

    // Register for remote notfications with the UA Library. This call is required.
    [[UAPush shared] registerForRemoteNotificationTypes:(UIRemoteNotificationTypeBadge |
                                                         UIRemoteNotificationTypeSound |
                                                         UIRemoteNotificationTypeAlert)];

    // Handle any incoming incoming push notifications.
    // This will invoke `handleBackgroundNotification` on your UAPushNotificationDelegate.
    [[UAPush shared] handleNotification:[launchOptions valueForKey:UIApplicationLaunchOptionsRemoteNotificationKey]
                       applicationState:application.applicationState];

    // self.tabBarController = [[UITabBarController alloc] initWithNibName:@"KFBViewController" bundle:nil];
    KFBViewController *rootView = [[KFBViewController alloc] initWithNibName:@"KFBViewController" bundle:nil];
    KFBNavControllerViewController *navController = [[KFBNavControllerViewController alloc] initWithRootViewController:rootView];
    navController.delegate = rootView;
    UIViewController *aboutUs = [[AboutUs alloc] initWithNibName:@"AboutUs" bundle:nil];

    KFBNavControllerViewController *navController1 = [[KFBNavControllerViewController alloc] initWithRootViewController:aboutUs];


    UIViewController *contactUs = [[ContactUs alloc] initWithNibName:@"ContactUs" bundle:nil];
    KFBNavControllerViewController *navController2 = [[KFBNavControllerViewController alloc] initWithRootViewController:contactUs];
    UIViewController *kyfb = [[KYFB alloc] initWithNibName:@"KYFB" bundle:nil];

    KFBNavControllerViewController *navController3 = [[KFBNavControllerViewController alloc] initWithRootViewController:kyfb];

    // UIViewController *rsfm = [[RSFM alloc] initWithNibName:@"RSFM" bundle:nil];
    // KFBNavControllerViewController *navController4 = [[KFBNavControllerViewController alloc] initWithRootViewController:rsfm];

    // UIViewController *li = [[LegislatorInfo alloc] initWithNibName:@"LegislatorInfo" bundle:nil];
    // KFBNavControllerViewController *navController5 = [[KFBNavControllerViewController alloc] initWithRootViewController:li];

    // UIViewController *events = [[Events alloc] initWithNibName:@"Events" bundle:nil];
    // KFBNavControllerViewController *navController6 = [[KFBNavControllerViewController alloc] initWithRootViewController:events];
    self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];

    //self.viewController = [[KFBViewController alloc] initWithNibName:@"KFBViewController" bundle:nil];
    //self.window.rootViewController = self.viewController;
    self.tabBarController = [[KFBTabBarViewController alloc] init];
    self.tabBarController.viewControllers = @[navController, navController1, navController2, navController3];
    // self.tabBarController.customizableViewControllers = nil;

    self.window.rootViewController = self.tabBarController;
    self.window.backgroundColor = [UIColor whiteColor];
    [self.window makeKeyAndVisible];

    return YES;
}

- (void)applicationWillResignActive:(UIApplication *)application
{
    // Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state.
    // Use this method to pause ongoing tasks, disable timers, and throttle down OpenGL ES frame rates. Games should use this method to pause the game.
}

- (void)applicationDidEnterBackground:(UIApplication *)application
{
    // Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later. 
    // If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits.
}

- (void)applicationWillEnterForeground:(UIApplication *)application
{
    // Called as part of the transition from the background to the active state; here you can undo many of the changes made on entering the background.
}

- (void)applicationDidBecomeActive:(UIApplication *)application
{
    // Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface.
    UA_LDEBUG(@"Application did become active.");

    // Set the icon badge to zero on resume (optional)
    [[UAPush shared] resetBadge];
}

- (void)applicationWillTerminate:(UIApplication *)application
{
    // Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.
    [UAirship land];
}

- (void)application:(UIApplication *)application didRegisterForRemoteNotificationsWithDeviceToken:(NSData *)deviceToken {
    // Updates the device token and registers the token with UA.
    [[UAPush shared] registerDeviceToken:deviceToken];
}

- (void)application:(UIApplication *)application didFailToRegisterForRemoteNotificationsWithError:(NSError *) error
{
    UA_LERR(@"Failed To Register For Remote Notifications With Error: %@", error);
}

- (void)application:(UIApplication *)application didReceiveRemoteNotification:(NSDictionary *)userInfo
{

    UA_LINFO(@"Received remote notification: %@", userInfo);

    // Send the alert to UA so that it can be handled and tracked as a direct response. This call
    // is required.
    [[UAPush shared] handleNotification:userInfo applicationState:application.applicationState];

    // Optionally provide a delegate that will be used to handle notifications received while the app is running
    // [UAPush shared].delegate = your custom push delegate class conforming to the UAPushNotificationDelegate protocol

    // Reset the badge after a push received (optional)
    [[UAPush shared] resetBadge];
}

-(NSUInteger)application:(UIApplication *)application supportedInterfaceOrientationsForWindow:(UIWindow *)window
{
    return UIInterfaceOrientationMaskAllButUpsideDown;
}

@end

And here is the view controller I want to open when opening a notification:

#import "ActionAlertsViewController.h"
#import "RSSChannel.h"
#import "RSSItem.h"
#import "WebViewController.h"
#import "CustomCellBackground.h"

@implementation ActionAlertsViewController
{
    UIActivityIndicatorView *loadingIndicator;
}
@synthesize webViewController;

- (void)viewDidLoad
{
    self.tableView = [[UITableView alloc] initWithFrame:CGRectZero style:UITableViewStyleGrouped];
    self.title = @"Action Alerts";
    loadingIndicator = [[UIActivityIndicatorView alloc] initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleGray];
    loadingIndicator.center = CGPointMake(160, 160);
    loadingIndicator.hidesWhenStopped = YES;
    [self.view addSubview:loadingIndicator];
    [loadingIndicator startAnimating];
    // UIRefreshControl *refresh = [[UIRefreshControl alloc] init];
    // refresh.attributedTitle = [[NSAttributedString alloc] initWithString:@"Pull to Refresh"];
    // [refresh addTarget:self action:@selector(refreshView:)forControlEvents:UIControlEventValueChanged];
    // self.refreshControl = refresh;
}

- (void)parser:(NSXMLParser *)parser didStartElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName attributes:(NSDictionary *)attributeDict
{
    NSLog(@"%@ found a %@ element", self, elementName);
    if ([elementName isEqual:@"channel"])
    {
        // If the parser saw a channel, create new instance, store in our ivar
        channel = [[RSSChannel alloc]init];

        // Give the channel object a pointer back to ourselves for later
        [channel setParentParserDelegate:self];

        // Set the parser's delegate to the channel object
        [parser setDelegate:channel];
    }
}

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
    // return 0;
    NSLog(@"channel items %d", [[channel items]count]);
    return [[channel items]count];
}

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
    // return nil;

    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:@"UITableViewCell"];
    if (cell == nil)
    {
        cell = [[UITableViewCell alloc]initWithStyle:UITableViewCellStyleDefault reuseIdentifier:@"UITableViewCell"];
        cell.textLabel.font=[UIFont systemFontOfSize:16.0];
    }
    RSSItem *item = [[channel items]objectAtIndex:[indexPath row]];
    [[cell textLabel]setText:[item title]];
    cell.backgroundView = [[CustomCellBackground alloc] init];
    cell.selectedBackgroundView = [[CustomCellBackground alloc] init];
    cell.textLabel.backgroundColor = [UIColor clearColor];
    cell.textLabel.highlightedTextColor = [UIColor darkGrayColor];

    return cell;
}

- (void)fetchEntries
{
    // Create a new data container for the stuff that comes back from the service
    xmlData = [[NSMutableData alloc]init];

    // Construct a URL that will ask the service for what you want -
    // note we can concatenate literal strings together on multiple lines in this way - this results in a single NSString instance
    NSURL *url = [NSURL URLWithString:@"http://kyfbnewsroom.com/category/public-affairs/notifications/feed/"];

    // Put that URL into an NSURLRequest
    NSURLRequest *req = [NSURLRequest requestWithURL:url];

    // Create a connection that will exchange this request for data from the URL
    connection = [[NSURLConnection alloc]initWithRequest:req delegate:self startImmediately:YES];
}

- (id)initWithStyle:(UITableViewStyle)styl

Answer 1

You could post a notification yourself when you receive a remote notification and by registering the viewcontroller to this notification, you could open a particular viewController once notification is received.

- (void)application:(UIApplication *)application didReceiveRemoteNotification:(NSDictionary *)userInfo{

   [[NSNotificationCenter defaultCenter] postNotificationName:@"pushNotification" object:nil userInfo:userInfo];

}

In your FirstViewController.m register for listening to this notification.

-(void)viewDidLoad{  

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

}

Inside the method you could open particular viewController

-(void)pushNotificationReceived{

 [self presentViewController:self.secondViewController animated:YES completion:nil];
}

Finally un-register current viewController from notification in dealloc method

-(void)dealloc{
[[NSNotificationCenter defaultCenter] removeObserver:self];

}