I have created three different storyboards for an app (a,b,c). The first (a) is a welcome screen, where you choose which storyboard (b or c) you want. I can't figure out how to do this. I would like it to save your preference so you only have to choose once. Any help would be appreciated!
I recommend you use Tab bar Controller to do it. And to make a as a main(first) viewcontroller you can set as bellow:
(BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
self.window = [[UIWindow alloc] initWithFrame:UIScreen.mainScreen.bounds];
A *a = // determine the initial view controller here and instantiate it with [storyboard instantiateViewControllerWithIdentifier:];
self.window.rootViewController = a;//making a view to root view
[self.window makeKeyAndVisible];
return YES;
}
You can do that in: target -> general -> Deployment Info -> Main Interface
There you can set your Storyboard (e.g. a)
Then, if you want to switch to the next choose storyboard you create e.g. two buttons and call the method:
//For open Storyboard B
UIStoryboard *storybordB = [UIStoryboard storyboardWithName:#"b" bundle:nil];
UIViewController *viewControllerB = [storybordB instantiateViewControllerWithIdentifier:#"myViewController"];
viewControllerB.modalTransitionStyle = UIModalTransitionStyleFlipHorizontal;
[self presentViewController: viewControllerB animated:YES completion:NULL];
//For open Storyboard C
UIStoryboard *storybordC = [UIStoryboard storyboardWithName:#"c" bundle:nil];
UIViewController *viewControllerC = [storybordC instantiateViewControllerWithIdentifier:#"myViewController"];
viewControllerC.modalTransitionStyle = UIModalTransitionStyleFlipHorizontal;
[self presentViewController: viewControllerC animated:YES completion:NULL];
Related
i would like to create an App whit a structure similar to the native application "Phone" of the iPhone. I will be more precise, the phone application have a tabBar that contains:"Favorites" , "Recents", "Contact", "Keypad" and "Voice Mail".
When we enter in the tab contacts we can see a navigation bar and a tableView.
I would like to have a similar structure but i'm questioning myself about which is the best and most correct way to do it?
I was thinking to start a single view application than use the view controller that is create automatically as a TabbedViewController then i would create another subclass of another viewController and i used it as my NavViewController.
I would have something like
[myTabBar.view addSubview:myNavController];
but how can i set those instance? once i have the automatically created ViewController and i create a SecondviewController how can i set them as the TabViewController and my NavViewController ?
If you're using storyboards, just add a tab bar controller to your storyboard. Then select one of the tab bar's child scenes and then choose "Embed In" - "Navigation Controller" from the Xcode "Editor" menu. If you repeat that process for whichever tabs you want to have navigation controllers. In this screen snapshot, I've added a navigation controller to the first and third tabs, but not the second.
Hopefully this illustrates the idea.
If you're determined to do this with NIBs, the easiest way to get started is create a new project with the Tabbed Application template (and obviously, at the next screen, uncheck "Use Storyboards"):
Then open up the app delegate .m file and replace the default didFinishLaunchingWithOptions that looks like:
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
// Override point for customization after application launch.
UIViewController *viewController1 = [[FirstViewController alloc] initWithNibName:#"FirstViewController" bundle:nil];
UIViewController *viewController2 = [[SecondViewController alloc] initWithNibName:#"SecondViewController" bundle:nil];
self.tabBarController = [[UITabBarController alloc] init];
self.tabBarController.viewControllers = #[viewController1, viewController2];
self.window.rootViewController = self.tabBarController;
[self.window makeKeyAndVisible];
return YES;
}
with one that creates a separate navigation controller for each tab for which you want a navigation bar (in this case, I'm adding it to the first one only, but it illustrates the idea):
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
// Override point for customization after application launch.
UIViewController *viewController1 = [[FirstViewController alloc] initWithNibName:#"FirstViewController" bundle:nil];
UINavigationController *navigationController1 = [[UINavigationController alloc] initWithRootViewController:viewController1];
UIViewController *viewController2 = [[SecondViewController alloc] initWithNibName:#"SecondViewController" bundle:nil];
self.tabBarController = [[UITabBarController alloc] init];
self.tabBarController.viewControllers = #[navigationController1, viewController2]; // was #[viewController1, viewController2];
self.window.rootViewController = self.tabBarController;
[self.window makeKeyAndVisible];
return YES;
}
This a relatively easy way to start a NIB-based tabbed application. You can then customize from there.
Personally, I struggle to imagine why someone would use NIBs rather than storyboards (unless you're trying to support iOS 4), but hopefully this illustrates both techniques.
I'm working in Xcode 4.3.2
I implemented Local Notifications that alert the user of a new event at a predetermined time. So when my app is in the background and the clock strikes 8 am (for instance), the user will get a notification from my app.
When the user decides to view the app from the background I load a nib. Currently, this nib works properly: it shows the view as it was it arranged in the nib. However, after the nib is shown to the user, I want to forward the user to a different view in the LocalNotificationsHandler.m. When I attempt to push the second view, my app fails. So while there isn't an error message, it seems the second nib will not load.
In short the flow goes as follows:
user gets notification while my app is running in the background
user chooses to view the app
the LocalNotificationsHandler nib will load
self.navigationController == nil (in LocalNotificationsHandler.m)
self.navigationController will not "[pushViewController: "new view" animated:YES]" to get a new view
I'm wondering if there is something I'm missing from my AppDelegate.m file so I've included
"didFinishLaunchingWithOptions" from my AppDelegate.m file:
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
// Override point for customization after application launch.
// Add the navigation controller's view to the window and display.
NSLog(#"did finish launching with options");
[self.window addSubview:tabBarController.view];
[self.window makeKeyAndVisible];
[[UIApplication sharedApplication] registerForRemoteNotificationTypes:(UIRemoteNotificationTypeAlert | UIRemoteNotificationTypeBadge | UIRemoteNotificationTypeSound)];
if (self.locationManager == nil)
{
locationManager = [[CLLocationManager alloc] init];
locationManager.purpose = #"We will try to use you location";
}
if([CLLocationManager locationServicesEnabled])
{
[self.locationManager startUpdatingLocation];
}
self.navigationController.navigationBar.tintColor = nil;
return YES;
}
You are using the outdated (since iOS 3) method of adding the viewcontroller's view to the main UIWindow. That should be looking like this:
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
// create properly sized window
self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
// create instance of root VC and assign to window
MainViewController *vc = [[MainViewController alloc] init];
self.window.rootViewController = vc;
[vc release];
[self.window makeKeyAndVisible];
return YES;
}
The navigationController property of a view controller is ONLY set if it is actually presented from a UINavigationController.
See this writeup for more information: http://www.cocoanetics.com/2012/11/revisited/
current version of my project :
I have 5 different UIViewControllers in my app. I've set my
FirstViewController to be the Initial View Controller using the
Attributes Inspector. I move back and forth from one ViewController to
another by using buttons to which I assign modal segues, from one
ViewController to another, using the StoryBoard
What I want to change:
I want to keep the navigation buttons obviously, delete the modal segues and use
a UINavigationController instead. If I understand the concept
correctly, when using a UINavigationController I need to go into each
UIButton-IBAction and at the very end of the method I have to push the next
ViewController I want to move to, onto my NavigationController (do I also
have to pop the current one first?). However, I can't figure out how
to implement all that correctly.
What I've done so far:
I removed all modal segues from the storyboard and kept the navigation buttons along with their corresponding IBActions
I unchecked the box in the Attributes Inspector that was making my FirstViewController the initial View Controller of my app
I went into my AppDelegate.m and tried to create the Navigation Controller there and make my FirstViewController be the RootViewController
MyAppDelegate.m
-(BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
UIViewController *myFirstViewController = [[FirstViewController alloc] init];
UINavigationController *myNavigationController = [[UINavigationController alloc] initWithRootViewController:myFirstViewController];
[myNavigationController pushViewController:myFirstViewController animated:YES];
// Override point for customization after application launch.
return YES;
}
I then tried to test if the above was working by going into the IBAction of a
navigation button on my FirstViewController and implemented the
following in order to move to my SecondViewController when the
button is pressed :
FirstViewController.m
- (IBAction)goRightButton:(UIButton *)sender
{
// some code drawing the ButtonIsPressed UIImageView on the current View Controller
UIViewController *mySecondViewController = [[SecondViewController alloc] init];
[self.navigationController pushViewController:mySecondViewController animated:YES];
}
but nothing happens. What am I doing wrong ?
You are not linking your XIB file. Please add your navigation controller as
UIViewController *myFirstViewController = [[FirstViewController alloc] initWithNibName:#"FirstViewController" bundle:nil];
navigationController = [[UINavigationController alloc] initWithRootViewController:myFirstViewController];
Use following code to move from one view to another
UIViewController *mySecondViewController = [[SecondViewController alloc] initWithNibName:#"SecondViewController" bundle:nil];
[self.navigationController pushViewController:mySecondViewController animated:YES];
If you are using a storyboard, you should just drag in the navigation controller there and hook it up to your app delegates. As long as it is the main storyboard, and you have identified a view controller to load first, you do not need to load any views in your app delegate.
In order to push a view programmatically that's in a storyboard, you need to do something like the following:
//bundle can be nil if in main bundle, which is default
UIStoryboard *mainStoryboard = [UIStoryboard storyboardWithName:#"MainStoryboard" bundle:nil];
MyCustomViewController *customVC = (MyCustomViewController *)[mainStoryboard instantiateViewControllerWithIdentifier:#"customVC"];
//standard way
[self.navigationController pushViewController:customVC animated:YES];
//custom animation
[UIView transitionWithView:self.navigationController.view duration:0.5 options:UIViewAnimationOptionTransitionCurlUp animations:^{
[self.navigationController pushViewController:customVC animated:NO];
} completion:nil];
You identify the view controller with the identifier you add in the storyboard editor. Below are some screenshots to help show what I mean.
I have a modal storyboard scene that I want to be accessible to all my other scenes. Creating a modal segue to it from every scene on my storyboard creates a big mess of strings going everywhere. Is there a way that I leave off the segues and call the scene programmatically instead?
Basically I want to do something like this:
MyNewViewController *myNewVC = [[MyNewViewController alloc] init];
[self presentModalViewController:myNewVC animated:YES];
except instead of creating and pushing a view controller class, I want to do a modal transition to an "isolated" (not connected with a segue) storyboard scene.
Yes you can. Do something like this to get access to the VC, then just Modal Push it:
UIStoryboard *storyboard = [UIStoryboard storyboardWithName:#"MainStoryboard_iPhone" bundle:nil];
MyNewViewController *myVC = (MyNewViewController *)[storyboard instantiateViewControllerWithIdentifier:#"myViewCont"];
Note: the method presentModalViewController:animated is deprecated in iOS 6.
The new code should read:
NSString * storyboardName = #"MainStoryboard_iPhone";
NSString * viewControllerID = #"ViewID";
UIStoryboard * storyboard = [UIStoryboard storyboardWithName:storyboardName bundle:nil];
MyViewController * controller = (MyViewController *)[storyboard instantiateViewControllerWithIdentifier:viewControllerID];
[self presentViewController:controller animated:YES completion:nil];
In the storyboard give your view controller an identifier (under the Attributes Inspector) then use the following code to bring that view forward.
UIStoryboard *mainStoryboard = [UIStoryboard storyboardWithName:#"STORYBOARDNAME" bundle:nil];
UIViewController *vc = [mainStoryboard instantiateViewControllerWithIdentifier:#"VIEWCONTROLLERIDENTIFIER"];
[self presentModalViewController:vc animated:YES];
I have a case where I want to present a view controller from the main part of the app, one with settings & help & so on. To do this, I want it to be within a nav controller, sort of a little plug in module we can call from a UIBarButtonItem.
Now, this can be to/in the current storyboard, or to another, it doesn't matter.
I want to do it this way, because I loathe the potential of segue line spaghetti all over my storyboard.
Here's how to do it.
- (IBAction)displaySettings:(id)sender
{
LOG_SELECTOR() // google that for extra goodness
// FYI, this can be done using a different storyboard like so.
/*
NSString * storyboardName = #"MainStoryboard_iPhone"; // possibly use device idiom?
UIStoryboard * storyboard = [UIStoryboard storyboardWithName:storyboardName bundle:nil];
*/
// To push a new set of scenes with a new Navigation Controller, it is done like this:
UINavigationController *settingsNC = [self.storyboard instantiateViewControllerWithIdentifier:#"Settings Nav Controller"];
OBSettingsUIViewController *settingsVC = [self.storyboard instantiateViewControllerWithIdentifier:#"Settings root"];
[settingsNC pushViewController:settingsVC animated:NO];
[settingsNC setModalTransitionStyle:UIModalTransitionStyleCrossDissolve];
// Present the view controller;
[self presentViewController:settingsNC animated:YES completion:NULL];
}
In the presented view controllers (or in a subclass of the Navigation Controller), you can have a UIBarButtonItem to then dismiss the whole presented hierarchy of view controllers like so:
- (IBAction)dismissThisVC:(id)sender {
[self dismissViewControllerAnimated:YES completion:nil];
}
Hope this helps a bunch of people out. Cheers.
Just call viewcontroller using navigation controller
Write this code in viewcontroller and set viewcontroller in storyboard as set in the image.
ProfileVC *vc = [[UIStoryboard storyboardWithName:#"Main" bundle:nil] instantiateViewControllerWithIdentifier:#"ProfileVC"];
[self.navigationController pushViewController:vc animated:YES];
Call to navigate to other class
UIWindow *window = [[[UIApplication sharedApplication] windows] objectAtIndex:0];
UIStoryboard *storyboard = [UIStoryboard storyboardWithName:#"Main" bundle: nil];
UINavigationController *navController = (UINavigationController *)window.rootViewController;
DumpFeed *dump = [storyboard instantiateViewControllerWithIdentifier:#"DumpFeed"];
dump.isPushed=YES;
dump.strUserId = appDelegate.strFriendid;
[navController pushViewController:dump animated:YES];
Heres a Swift version of this:
let storyboard = UIStoryboard(name: "Main", bundle: nil)
let myVC = storyboard.instantiateViewControllerWithIdentifier("myStoryId")
self.presentViewController(myVC, animated: true, completion: nil)
You should also change your storyboard id like this:
I think that with iOS7 it has become very easy implementing via the storyboard
I'm currently learning about the new features in iOS7 and found this simple solution, but it might have been relevant even in prior versions, I'm not sure.
First u need to connect the presenting VC with the target VC (thats the only connection needed), then within the storyboard's attributes inspector choose the style to be modal, in the identity inspector give your VC a storyboardID and make sure you checked the 'use storyboardID' checkbox,
If its not there yet add this method to your presentingVC:
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
YourTargetVC * targetVC =
(YourTargetVC *)segue.destinationViewController;
if(nil != targetVC) {
//Do preparations here
}
}
Now, when you wish to show your targetVC from your presentingVC you can use:
[self performSegueWithIdentifier:(NSString *) sender:(id)];
where the identifier is your viewController's storyboardID, and the sender is the view who triggered the action, this method will invoke the storyboards scene, so the [prepareForSegue: sender:] method will be called allowing u making last modifications before the targetViewController will appear.
I've I have a simple noob question, I would like to hide the navigation bar of a UINavigationController, but I'm pretty sure I`m not calling the right object .
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
UIViewController *rootViewController = [[[TestViewController alloc] init] autorelease];
viewController = [ [UINavigationController alloc] initWithRootViewController:rootViewController];
[window addSubview:viewController.view];
[window addSubview: rootViewController.view];
[window makeKeyAndVisible];
return YES;
}
Now, I`ve tried, this :
-(void)hideBar {
viewController.navigationBarHidden = YES;
}
It is complaining that "navigationBarHidden" not found on object type UIViewController, obviously I would need to call the UINavigation controller instead, but that's where I'm stuck ...
Try:
[self.navigationController setNavigationBarHidden:YES];
within your TestViewController. A good place is in viewDidLoad
Also, while we're at it, remove the line [window addSubview:rootViewController.view];, you don't need it.
In Navigation controller's root view controller's method viewDidLoad write this -
[self.navigationController setNavigationBarHidden:TRUE];
in your case its TestViewController.