I try to navigate to certain ViewController after I get remote Notification
It crashes after this code any help please
My storyboard like this
SWRevealViewController -> NavViewController -> UIViewController
I want to reach this UIViewController
- (void)application:(UIApplication *)application didReceiveRemoteNotification:(NSDictionary *)userInfo
{
UIStoryboard *storyboard =[UIStoryboard storyboardWithName:#"Main" bundle:nil];
// my ViewController I want navigate to UITableViewController call home_tableview
Home_tableView *home =[storyboard instantiateViewControllerWithIdentifier:#"home_view"];
[(UINavigationController *)self.window.rootViewController pushViewController:home animated:NO];
}
The Error I get
2015-01-20 13:04:14.379 SchoolLink[1304:416727] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '*** -[__NSArrayM insertObject:atIndex:]: object cannot be nil'
*** First throw call stack:(0x25bd749f 0x3338dc8b 0x25af30b3 0x2909d06b 0x11d48f 0x29099d0f 0x29099a7d 0x2909f953 0x2910643d 0x111dbd 0x2930286b 0x292fa54d 0x2c3680d1 0x25b9dd7d 0x25b9d041 0x25b9bb7b 0x25ae93c1 0x25ae91d3 0x2cee70a9 0x290f8fa1 0x12b7ad 0x3390daaf)
libc++abi.dylib: terminating with
I suppose you have an UINavigationController in your storyboard which embeds your view controllers.
If that's the case, your code should work without any issues.
I've tested it in a new project with two view controllers and one navigation controller as the initial view and everything is fine.
If you're certain that you have all the storyboard identifiers right, and that your initial View in Interface Builder is an UINavigationController that embeds all of your ViewControllers, then you have some issues elsewhere, not in the code you've pasted in.
Since your error is related to insertObjectAtIndex: I believe there's some data you instantiate your UITableViewController with in the normal workflow of the app (when segueing to it) and when you try to present the UITableView controller in a clean state from a notification, that data is missing, hence the crash.
Check where you try to add an object to an array at a given index.
The problem is either in the class that receives the notification (I guess it's your AppDelegate class), either in the UITableViewController class, somewhere in the initialization.
Try
Home_tableView *home =[storyboard instantiateViewControllerWithIdentifier:#"home_view"];
[self.window setRootViewController:home]
[self.window makeKeyAndVisible];
Please try this:
UIStoryboard *storyboard =[UIStoryboard storyboardWithName:#"Main" bundle:nil];
Home_tableView*svc = [storyboard instantiateViewControllerWithIdentifier:#"home_view"];
// Configure the new view controller here.
[self presentViewController:svc animated:YES completion:nil];
Related
I am trying to setData on a ViewController Instance before navigating to it.
I am navigating from a nib file to a view controller in another story board.
Here is the corresponding code:
- (IBAction)newReferenceButtonPressed {
UIStoryboard *storyboard = [UIStoryboard storyboardWithName:#"ReferenceStoryboard" bundle:nil];
ReferenceViewController *evc = (ReferenceViewController*)[storyboard instantiateViewControllerWithIdentifier:#"ReferenceViewController"];
ReferenceObject *referenceObject = [[ReferenceObject alloc] initWithReference: self.referenceDetailsDictionary[#"getReferenceDetailsResponse"]];
[evc setClientDetailsWithName:customerNameLabel.text andAddress:address1Label.text];
[evc setReferenceData:referenceObject];
[self.navigationController pushViewController:evc
animated:YES];
}
I am making two method calls on the destination view controller. Strangely, setClientDetailsWithName call has no problems while setReferenceData gives me unrecognized selector exception.
Any help is appreciated.
Thanks.
Currently this is how my method loooks
- (void)application:(UIApplication *)application didReceiveRemoteNotification:(NSDictionary *)userInfo {
NSString *screenNo =[userInfo objectForKey:#"screen"];
}
Based on the screenNo I would like to navigate to different view controllers. But I couldn't do as most of the answers given below.
Reason is that my root view is not navigation control, so I couldn't segue. It crashes the app.
when push message arrives didReceiveRemoteNotification is called and I could see the content of the message too. But it doesn't get navigated using the methods shown here.
[self.window makeKeyAndVisible];
UIStoryboard *mainStoryBoard = [UIStoryboard storyboardWithName:#"Main" bundle:nil];
UIViewController *vc = [mainStoryBoard instantiateViewControllerWithIdentifier:#"galleryViewController2"];
[(UINavigationController *)self.window.rootViewController pushViewController:vc animated:YES];
this is the exception
2014-07-21 18:06:53.709 Proitzen Rest[993:60b] -[RESTSecondViewController pushViewController:animated:]: unrecognized selector sent to instance 0x14e26270
2014-07-21 18:06:53.712 Proitzen Rest[993:60b] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[RESTSecondViewController pushViewController:animated:]: unrecognized selector sent to instance 0x14e26270'
*** First throw call stack:
(0x2f480fd3 0x3a021ccf 0x2f484967 0x2f483253 0x2f3d27b8 0xff93b 0x31eb3b29 0x31eb37fb 0x31dbb05f 0x31e6d377 0x31d1c6f5 0x31c9555b 0x2f44c2a5 0x2f449c49 0x2f449f8b 0x2f3b4f0f 0x2f3b4cf3 0x342da663 0x31d0016d 0x157e69 0x3a52eab7)
libc++abi.dylib: terminating with uncaught exception of type NSException
Thanks for your time in advance.
Did you try something like this?
UIStoryboard *mainStoryBoard = [UIStoryboard storyboardWithName:#"Main" bundle:nil];
UIViewController *vc = [mainStoryBoard instantiateViewControllerWithIdentifier:#"galleryViewController2"];
self.window.rootViewController = vc;
Instead of pushing your new controller (it crashes because to push you need a navigation controller) you can replace current controller with the new one.
Please, take in account that you can not pop to the original controller (if you need to get back, you need a navigation)
You're trying to push a UIViewController with a UIViewController. This is not possible. You must have a UINavigationController in your app hierarchy.
You can also just set the rootViewController:
[self.window setRootViewController: newViewController];
make sure you call this method before trying to present any view controller.
[self.window makeKeyAndVisible];
You can't navigate using push and Pop from APPDelegate if you need to navigate from appDelegate to a file, Segues won't help either then You would need to load it first in your window and then make it Visible such as..
- (void)application:(UIApplication *)application didReceiveRemoteNotification:(NSDictionary *)userInfo
{
NSString *screenNo =[userInfo objectForKey:#"screen"];
UINavigationController *navController = (UINavigationController *)self.window.rootViewController;
firstViewController *menu = [navController.storyboard instantiateViewControllerWithIdentifier:#"firstVC"];
// First item in array is bottom of stack, last item is top.
navController.viewControllers = [NSArray arrayWithObjects:menu, nil];
[self.window makeKeyAndVisible];
}
This is what finally saved me. placed it inside didReceiveRemoteNotification method.
NSLog(#"User wanna navigate");
[self.window makeKeyAndVisible];
UIStoryboard *mainStoryBoard = [UIStoryboard storyboardWithName:#"Main" bundle:nil];
UIViewController *vc = [mainStoryBoard instantiateViewControllerWithIdentifier:#"moreTableViewController"];
self.window.rootViewController = vc;
UINavigationController *navController = (UINavigationController *)self.window.rootViewController;
UIViewController *evc = [mainStoryBoard instantiateViewControllerWithIdentifier:#"eventsViewController"];
[navController.visibleViewController.navigationController pushViewController:evc animated:YES];
When a user gets a push notification, I want the app to open up to a certain UIViewController. I'm in xCode 5 with storyboard.
I think my code is close but it is throwing an error
Here is the method in AppDelegate
- (void)application:(UIApplication *)application didReceiveRemoteNotification:(NSDictionary *)userInfo
{
UINavigationController *nav = (UINavigationController *)self.window.rootViewController;
UIStoryboard *storyboard = [UIStoryboard storyboardWithName:#"Main_iPhone" bundle:nil];
RewardList *vc = (RewardList *)[storyboard instantiateViewControllerWithIdentifier:#"RewardList"];
[nav pushViewController:vc animated:YES];
}
It errors out on the [nav pushViewController:vc animated:YES]; I'm not quite sure what is going on. Can someone help shed light on this issue?
Here is the error:
-[SplashViewController pushViewController:animated:]: unrecognized selector sent to instance 0x1f862630 2013-12-12 17:58:28.719 appName[473:907] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[SplashViewController pushViewController:animated:]: unrecognized selector sent to instance 0x1f862630'
EDIT:
The app root view controller is SplashNavigationController which is a UIViewController. From there I have a UITabBarController. Inside of that on my 3rd tab, is RewardList which is also a UIViewController. I need to go from whatever the current view is, to my 3rd tab, the RewardList tab.
I'm finding a lot of posts on this, but nothing seems to work in my case.
The first thing I would do to fix this is change the structure so the tab bar controller is the root view controller of the window. If you want your splash screen to come up first, then present that modally (with no animation) from the viewDidAppear method in the controller in the first tab. When you're done with that screen, you can just dismiss it, and you'll be in the first controller. If you make that change, then doing what you want in the app delegate will be simple,
- (void)application:(UIApplication *)application didReceiveRemoteNotification:(NSDictionary *)userInfo {
UITabBarController *tbc = (UITabBarController *)self.window.rootViewController;
tbc.selectedIndex = 2;
}
I would also suggest that you study Apple's "View Controller Programming Guide for iOS" to learn about view controllers and their life cycle.
It sounds like your root view controller is a view controller of the class SplashViewController. Is SplashViewController a subclass of UINavigationController? It has to be, or you'll get that error.
There are some ways to get top most view controller on this thread.
https://stackoverflow.com/a/23603265/
I like this code because it's very simple.
https://stackoverflow.com/a/23603265/1971596
- (UIViewController*)topViewController {
return [self topViewControllerWithRootViewController:[UIApplication sharedApplication].keyWindow.rootViewController];
}
- (UIViewController*)topViewControllerWithRootViewController:(UIViewController*)rootViewController {
if ([rootViewController isKindOfClass:[UITabBarController class]]) {
UITabBarController* tabBarController = (UITabBarController*)rootViewController;
return [self topViewControllerWithRootViewController:tabBarController.selectedViewController];
} else if ([rootViewController isKindOfClass:[UINavigationController class]]) {
UINavigationController* navigationController = (UINavigationController*)rootViewController;
return [self topViewControllerWithRootViewController:navigationController.visibleViewController];
} else if (rootViewController.presentedViewController) {
UIViewController* presentedViewController = rootViewController.presentedViewController;
return [self topViewControllerWithRootViewController:presentedViewController];
} else {
return rootViewController;
}
}
And then you just present view controller from top most view controller.
Hey together,
I am calling a void with some parameters from the AppDelegate on my main view.
This is done if a push notification is received:
MainViewController *mainView = [[MainViewController alloc] init];
[mainView showPushView:pushDataObject];
The called void # the MainView doing some data operating stuff and after that it should load the pushView:
- (void)showPushView: (PFObject *)pushDataObject {
NSLog(#"Push Data object transfered %#", pushDataObject);
pushItem = pushDataObject;
//All working fine to this point
[self performSegueWithIdentifier:#"showPushObject" sender:self];
}
Now the problem is that the app is crashing at [self performSegueWithIdentifier:#"showPushObject" sender:self]; with this Error:
*** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason:
'Receiver (<MainViewController: 0x145b80e0>) has no segue with identifier 'showPushObject''
*** First throw call stack:
(0x2e51fe83 0x3887c6c7 0x30f656d9 0xbeb11 0xb2a23 0x1745f7 0x38d610c3 0x38d610af 0x38d639a9 0x2e4ea5b1 0x2e4e8e7d 0x2e453471 0x2e453253 0x3318d2eb 0x30d08845 0xafecd 0x38d75ab7)
libc++abi.dylib: terminating with uncaught exception of type NSException
I think that there is a problem because I call the void from the AppDelegate, am I right?
Those anyone know a fix for that problem?
Thanks a lot!
Best regards from Germany :)
P.S. If I call [self performSegueWithIdentifier:#"showPushObject" sender:self]; with a button or something on the MainViewController all working fine... :/
In order for the segue to work, you need to have the storyboard loaded in the mainView when you start it that way. Try instead something like this:
self.window = [[UIWindow alloc] initWithFrame:UIScreen.mainScreen.bounds];
UIStoryboard *storyboard = [UIStoryboard storyboardWithName:#"MainStoryboard" bundle:nil];
UIViewController *firstViewController = [storyboard instantiateViewControllerWithIdentifier:#"kYourMainViewControllerIdentifier"];
self.window.rootViewController = firstViewController;
[self.window makeKeyAndVisible];
Remember to give an identifier to your root view controller and change it in this piece of code.
Your problem is this line:
MainViewController *mainView = [[MainViewController alloc] init];
because it means that the mainView instance doesn't have a storyboard (so it can't have any segues).
When you run it from a button the controller instance must have been created from a storyboard.
So, to fix, load the storyboard and instantiate mainView from it. Then the segue will work.
UIStoryboard *storyboard4Inch = [UIStoryboard storyboardWithName:#"Storyboard4Inch" bundle:nil];
UIViewController *mainViewController = [storyboard4Inch instantiateViewControllerWithIdentifier:#"MainViewController"];
[mainViewController showPushView:pushDataObject];
I created a new iPhone project on a Master-Detail-Application. As I need a login before, I added at the storyboard a new ViewController, checkmarked "is initial View Controller" and assigned the new created class LoginViewController to this ViewController.
Furthermore but not relevant (in my opinion), i created a segue and connected it from the ViewController to the NavigationController (of the Master-Detail-Template).
The AppDelegate.m was changed to launch the new controller at startup:
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
// Override point for customization after application launch.
/* // Old Master-Detail-View-Controller
UINavigationController *navigationController = (UINavigationController *)self.window.rootViewController;
MasterViewController *controller = (MasterViewController *)navigationController.topViewController;
controller.managedObjectContext = self.managedObjectContext;
*/
(LoginViewController *)self.window.rootViewController;
return YES;
}
This will end up in the error:
*** Terminating app due to uncaught exception 'NSInternalInconsistencyException',
reason: '-[UICollectionViewController loadView] loaded the "Qn5-Rj-iPA-view-IRE-eP
-ILZ" nib but didn't get a UICollectionView.'
I have as well tried this:
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
// Override point for customization after application launch.
LoginViewController *loginViewController = [[LoginViewController alloc] init];
self.window.rootViewController = loginViewController; //Set the view controller
[self.window makeKeyAndVisible];
return YES;
}
Resulting in a similar error:
*** Terminating app due to uncaught exception 'NSInvalidArgumentException',
reason: 'UICollectionView must be initialized with a non-nil layout parameter'
Where is my mistake?
What I do not get is, where the hell the UICollectionView in the error message comes from. I did never create one or add one??
My LoginViewController inherits by mistake form UICollectionViewController instead of UIViewController. I fixed that and it works.
This explained the strange errormessage which i did not understood in the first place. As always the truth is in the sourcecode. Rechecking helps.
You don't have to do anything to load view controllers in the AppDelegate. As long as your stroyboard is the one that is loaded in project settings, it should load automatically.