I want to display a programmatically created ViewController in a storyboard ViewController. The ViewController of the Storyboard is of a different class as the 'programmatically' created ViewController.
I've got the following classes:
ViewController (linked to storyboard scene, and implementation happens here)
OnboardingVC (all elements are created over here)
I've tried the following:
-(id)initWithCoder:(NSCoder *)aDecoder{
self = [super initWithCoder:aDecoder];
if(self){
self.onboardVC = [self generateFirstDemoVC]; // returns in an instance ofOnboardingViewController
self = (ViewController*)self.onboardVC;
}
return self;
}
This (obviously) crashes.
What I don't want is this:
self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
[self.window setRootViewController:self.onboardVC];
[self.window makeKeyAndVisible];
Because this doesn't take the setup in the storyboard into account, and I don't want that, because the VC needs to managed by a NavigationController. How do I accomplish that?
It sounds like you have a UINavigationController as the entry point to your storyboard. You can manipulate this navigation controller when the application launches, to add, remove, or replace view controllers, etc.
For example:
- (BOOL)application:(UIApplication*)application didFinishLaunchingWithOptions:(NSDictionary*)launchOptions
{
UIViewController* initialVc = [OnboardingViewController generateFirstDemoVC]; // or whatever
UINavigationController* nav = (id)_window.rootViewController;
nav.viewControllers = #[ initialVc ];
return YES;
}
Related
I'm creating an application that has 2 main view controllers at the moment. The app loads into the initial viewController, and clicking a button inside should bring up the second viewController. Here's what I have:
AppDelegate.h
#import <UIKit/UIKit.h>
#import "ViewController1.h"
#interface AppDelegate : UIResponder <UIApplicationDelegate>
#property (strong, nonatomic) UIWindow *window;
#property (strong, nonatomic) ViewController1 *mainViewCtr;
#property (strong, nonatomic) UINavigationController *navigationController;
#end
AppDelegate.m
- (void)applicationDidFinishLaunching:(UIApplication *)application {
_mainViewCtr = [[ViewController1 alloc] initWithNibName:#"mainViewCtr" bundle:nil];
_navigationController = [[UINavigationController alloc] initWithRootViewController:_mainViewCtr];
_window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
_window.rootViewController = _navigationController;
_navigationController.delegate = self;
_navigationController.navigationBarHidden = YES;
[_window addSubview:_navigationController.view];
[self.window makeKeyAndVisible];
}
and my button method inside viewcontroller1:
- (IBAction)SessionNickNameSubmit:(id)sender {
ViewController2 *secondViewCtrl = [[ViewController2 alloc] initWithNibName:#"secondViewCtrl" bundle:nil];
[self.navigationController pushViewController:secondViewCtrl animated:YES];
}
but when I click the button the view doesn't change. I tried debugging and the code is hit, but nothing happens.
am I missing a setting somewhere?
UPDATE
I've updated all viewController variable names:
instead of ViewController1/2 I'm using mainViewCtrl and secondViewCtrl
but still no use :(
You made a typo:
it's
_window.rootViewController = _navigationController;
not
_window.rootViewController = _joinViewController;
And NeverHopeless's suggestion is also spot on. It's probably the typo AND the fact that you add your second viewcontroller as ViewController2 and not using a proper variable name.
Another suggestion is making a storyboard (if you are not using one) and adding a segue for the transition. Simply assign the segue processing to the button. Like this:
-(IBAction)SessionNicknameSubmit:(id)sender
{
[self performSegueWithIdentifier:#"identifier" sender:self ];
}
Here is a nice description of how it works and how to use it plus some useful pointers!
Obj-C is a case sensitive language, class name and instance name should not be the same like ViewController2. Try like this:
- (IBAction)SessionNickNameSubmit:(id)sender {
ViewController2 *viewController2 = [[ViewController2 alloc] initWithNibName:#"ViewController2" bundle:nil];
[self.navigationController pushViewController:viewController2 animated:YES];
}
The reason is that you have set the window's rootViewController to ViewController1.
You need to set you navigation controller to the window's rootViewController.
So that when you try to access the self.navigationController on the press of the button, it will access the navigation controller in which the self resides i.e. your window's rootViewController now.
Then it will push the next view controller properly.
After looking at almost every tutorial and every stack overflow answer, I finally found a solution that worked. I had to make an instance of the storyboard in the app delegate and use that to create my first view controller instance.
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
self.storyboard = [UIStoryboard storyboardWithName:#"Main" bundle:nil];
self.joinViewController = [self.storyboard instantiateViewControllerWithIdentifier:#"ViewController1"];
UINavigationController *navigationController = [[UINavigationController alloc] initWithRootViewController:joinViewController];
_window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
navigationController.navigationBarHidden = YES;
_window.rootViewController = navigationController;
[_window addSubview:navigationController.view];
[self.window makeKeyAndVisible];
return YES;
}
I think the problem was that when I was creating an instance of ViewController, it was creating a new instance and binding the navigation controller to it (independent of the view controller that was showing up in the simulator). So when I was using the push method it wasn't recognizing self.NavigationController (that's why NSLog(self.NavigationController == nil) was logging 1
I'm trying to transition our app to use SWRevealViewController to give us a side-bar on each side of the application. But despite following the code in one of the example apps, I'm getting an error where the ViewController for the front view doesn't work properly. viewDidLoad gets called, but everything remains black.
Interestingly, if in my viewDidLoad, I set the background colour to red of the view, this is reflected. But stuff in Interface builder from the original story board is not.
The code I use in the AppDelegate is:
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
UIWindow *window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
self.window = window;
MainViewController *frontViewController = [[MainViewController alloc] init];
RearViewController *rearViewController = [[RearViewController alloc] init];
UINavigationController *frontNavigationController = [[UINavigationController alloc] initWithRootViewController:frontViewController];
UINavigationController *rearNavigationController = [[UINavigationController alloc] initWithRootViewController:rearViewController];
SWRevealViewController *revealController = [[SWRevealViewController alloc] initWithRearViewController:rearNavigationController frontViewController:frontNavigationController];
revealController.delegate = self;
RightViewController *rightViewController = rightViewController = [[RightViewController alloc] init];
rightViewController.view.backgroundColor = [UIColor greenColor];
revealController.rightViewController = rightViewController;
//revealController.bounceBackOnOverdraw=NO;
//revealController.stableDragOnOverdraw=YES;
self.viewController = revealController;
self.window.rootViewController = self.viewController;
[self.window makeKeyAndVisible];
return YES;
}
#pragma mark - SWRevealViewDelegate
- (id <UIViewControllerAnimatedTransitioning>)revealController:(SWRevealViewController *)revealController animationControllerForOperation:(SWRevealControllerOperation)operation fromViewController:(UIViewController *)fromVC toViewController:(UIViewController *)toVC
{
if ( operation != SWRevealControllerOperationReplaceRightController )
return nil;
if ( [toVC isKindOfClass:[RightViewController class]] )
{
if ( [(RightViewController*)toVC wantsCustomAnimation] )
{
id<UIViewControllerAnimatedTransitioning> animationController = [[CustomAnimationController alloc] init];
return animationController;
}
}
return nil;
}
This is the Main.Storyboard which is just for the MainViewController:
When the app loads, the view is just black. But I can drag from both the left and right edge and view the side bars as would be expected. So it's only the FrontView that is coming up black. I stuck an NSLog() into the ViewDidLoad, which appears in the console, as does one in -(void)loadView{}, which shows the View is loading.
If I put into the viewDidLoad a [self.view setBackgroundColor:[UIColor redColor]] this takes effect, meaning it is linked to the view, but it's just the view inside the storyboard is not appearing. Which is weird since the Storyboard also contains a NavigationController, which does appear (I think - unless that navigation controller is coming from somewhere else - which I'm pretty sure it isn't).
Any thoughts on what might be causing this?
I had the same thing going on. I fixed it while looking on the Example code.
In your Storyboard add a UIViewController
Select it and in Identity Inspector just use 'SWRevealViewController' as class
Add a UITableViewController to your story board
Now select your previously added ViewControler and right-click-draw a line to your TableViewController
Select 'reveal view controller set controller'
Click on the newly added Segue and in Attribute Inspector change the identifier to 'sw_rear'
Add any custom ViewController (for example 'MyViewController') to the story board
Select it, then go to the Menu->Editor->Embed In->Navigation Controller
Now a new Navigation Controller should appear
Again right-click-draw a line from the first ViewController to your new NavigationController
Again choose 'reveal view controller set controller'
Now set the identifier of this new Segue to 'sw_front'
Now you have a Basic Setup and when running your app, you should see your custom ViewController. Now the Button for the Menu has to be added.
In your ViewControllers .m add following:
#interface MyViewController ()
#property (nonatomic) IBOutlet UIBarButtonItem* revealButtonItem;
#end
- (void)viewDidLoad {
[super viewDidLoad];
[self customSetup];
}
- (void)customSetup
{
SWRevealViewController *revealViewController = self.revealViewController;
if ( revealViewController )
{
[self.revealButtonItem setTarget: self.revealViewController];
[self.revealButtonItem setAction: #selector( revealToggle: )];
[self.navigationController.navigationBar addGestureRecognizer: self.revealViewController.panGestureRecognizer];
}
}
Now again switch to the story board. Add a UIBarButtonItem to MyViewController. Again right-click-draw a line from MyViewController to this new item in the NavigationBar. Choose 'revealButtonItem'.
Thats it! Repeat the last steps for every ViewController you want to add. You only have to connect them with right-click-drawing from the TableView to your newly added NavigationController of each of your added ViewControllers. To push the ViewControllers just select 'reveal view controller push controller'.
Hope that helps a bit!
I have a project which I don't really understand the views and navigation behind. I start out in the AppDelegate (MAAppDelegate), where I define properties:
#property (strong, nonatomic) UIWindow *window;
#property (strong, nonatomic) UIViewController *detailViewController;
Then in the MAAppDelegate.m, I create a navigationController, and
#implementation MAAppDelegate
#synthesize detailViewController;
#synthesize window;
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
// Init the navController for the Master Detail View of the grade cells
UINavigationController *navController = [[UINavigationController alloc] init];
detailViewController = [[UIViewController alloc] init];
UIViewController *viewController = [[MAController alloc] init];
navController = [[UINavigationController alloc] initWithRootViewController:viewController];
self.window.rootViewController = viewController;
[self.window makeKeyAndVisible];
return YES;
}
So at this point, I think I have a working naviationController, I've setup an instance of a custom UIViewController (custom class MAController) and I've set it up as the rootViewController.
Then, in my MAController class, the class where I do all of my UI stuff (the entire UI is done programmatically, no nibs or storyboards). Here is a bit of the viewDidLoad of MAController:
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view.
[self.navigationController setNavigationBarHidden:YES]; // I commented this line out and realized it does nothing
I go on (in viewDidLoad) to add a bunch of subviews to self.view, like this
[self.view addSubview:self.backgroundImageView];
Earlier, I created a viewController in the AppDelegate class and it was called view, so I assumed it was refereeing to that but now since I've changed it (in AppDelegate) to viewController, I guess I was thinking wrong?
And then finally, I create a UIView in 'viewDidLoad`:
UIView *header = [[UIView alloc] initWithFrame:headerFrame];
header.backgroundColor = [UIColor clearColor];
self.tableView.tableHeaderView = header;
and start adding a bunch of subviews to this new UIView I created header.
So, in short, I have no idea what is happening. Later, when I tried telling (from a method inside MAController) self.navigationController (which I assumed to be navigationController in charge of everything in my project - created at the beginning in the AppDelegate) to pushViewController a new viewController that I was going to use as a detailView for a table, it got weird.
So I'm just trying to understand what has control, and what the rootViewController is, and just what is happening.
The main window root is set to a view controller and not the navigation controller
Change:
self.window.rootViewController = viewController;
to:
self.window.rootViewController = navController;
EDIT:
You can access the navigationController from anywhere by asking your appDelegate. It is normally not considered a good practice:
MAAppDelegate *delegate = (MAAppDelegate *)[[UIApplication sharedApplication] delegate];
UINavigationController *nav = delegate.navigationController;
Don't forget to:
#import "MAAppDelegate.h"
First, take a little time and read through how navigation controllers work. The documentation is really helpful:
https://developer.apple.com/library/ios/documentation/uikit/reference/UINavigationController_Class/Reference/Reference.html
Second, your problem is that your window's root view controller is not the navigation controller you created. Rather it is an instance of MAController. This is what you're doing:
UIViewController *viewController = [[MAController alloc] init];
// some other code ...
self.window.rootViewController = viewController;
I think you meant to add MAController as the root view controller of the navigation controller and make the navigation controller your window's root. If so, you'll want to set your view controllers up like this:
UIViewController *viewController = [[MAController alloc] init];
UINavigationController *navController = [[UINavigationController alloc] initWithRootViewController:viewController];
self.window.rootViewController = navController;
Another potential problem is that you don't seem to be doing anything with your detailViewController. Maybe that's confusing you too.
I'm trying to manually (programmatically) lay out views in a UITabBarViewController. I instantiate my UITabBarViewController like this:
MYAppDelegate.m
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
UITabBarController *tabBarController = [[UITabBarController alloc] initWithNibName:nil bundle:nil];
MYViewController1 *myViewController1 = [[MYViewController1 alloc] init];
myViewController1.title = #"My VC 1";
[tabBarController addChildViewController:myViewController1];
self.window = [[UIWindow alloc] initWithFrame:[UIScreen mainScreen].bounds];
self.window.rootViewController = tabBarController;
return YES;
}
MYViewController1.m
- (void)viewDidLoad
{
[super viewDidLoad];
_myView = [[MYView alloc] initWithFrame:self.view.frame];
[self.view addSubview:_myView];
}
MYView.m
- (void)layoutSubviews
{
CGRect descriptionRect, buttonRect;
CGRectDivide(self.frame, &buttonRect, &descriptionRect, 50.f, CGRectMaxYEdge);
_descriptionTextView.frame = descriptionRect;
[self addSubview:_descriptionTextView];
_myButton.frame = buttonRect;
[self addSubview:_myButton];
}
The problem I'm having is that when I get to layoutSubviews, the superview's frame is the full size of the window, so the button is hidden by the tab bar. What am I doing wrong?
Without seeing more code, it appears that you may have some confusion about the use of a UITabBarController.
In the code you have posted above you are initializing a UITabBarController, then a UIViewController, and then you are calling 'addChildViewController:' on the tabBarController. (however, addChildViewController: is an instance method on UIViewController).
Is this in attempt to add the ViewController as a tab of the TabBarController? If so, then try the following code in place of addChildViewController: to see if it gives you the functionality that you are looking for:
tabBarController.viewControllers = #[myViewController1]; // Passing an array of viewControllers will set them as a tabs on the TabBar in the order they are added to the array.
If that doesn't help, then please comment on this answer with more details regarding the desired functionality of your code, and I'll update my answer to assist you as much as I can.
EDIT: Looks like I may have misunderstood your problem. Can you try the following code in play of your subview's initialization:
_myView = [[MYView alloc] initWithFrame:self.view.bounds]; // Try bounds instead of frame.
Hi Fellow iOS Developers, I am a newbie developing a project with 5 tab Views and on the first and second tabs I have slide out menus using Container views from example code by Michael Frederick on his GitHub page Project Link: https://github.com/mikefrederick/MFSideMenu. He is using a nib (.xib) files though I am using Storyboard to achieve the same and struck with defining the container and child views. can kindly some one advice how to modify the below code to accommodate in my storyboard.
the original code in the AppDelegate.m is
- (DemoViewController *)demoController {
return [[DemoViewController alloc] initWithNibName:#"DemoViewController" bundle:nil];
}
- (UINavigationController *)navigationController {
return [[UINavigationController alloc]
initWithRootViewController:[self demoController]];
}
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
UITabBarController *tabBarController = [[UITabBarController alloc] init];
[tabBarController setViewControllers:[NSArray arrayWithObjects:[self navigationController],
[self navigationController], nil]];
SideMenuViewController *leftSideMenuController = [[SideMenuViewController alloc] init];
SideMenuViewController *rightSideMenuController = [[SideMenuViewController alloc] init];
MFSideMenuContainerViewController *container = [MFSideMenuContainerViewController
containerWithCenterViewController:tabBarController
leftMenuViewController:leftSideMenuController
rightMenuViewController:rightSideMenuController];
self.window.rootViewController = container;
[self.window makeKeyAndVisible];
return YES;
}
#end
how to modify the code to accommodate the container parent view and child views ?
where should i instantiate the code for the parent and child of the 2nd tab view ? in AppDelegate or the View Controller ?
If any other Details are required leave a comment please. Any Help Will be greatly appreciated. thanks in Advance.
I don't know if you still need this, but i had the exactly same problem today, too. What you need to do is:
remove the both methods over your app Delegate
put this in your app Delegate:
UIStoryboard *storyboard = [UIStoryboard storyboardWithName:#"YOUR_STORYBOARD" bundle:[NSBundle mainBundle]];
MFSideMenuContainerViewController *container = (MFSideMenuContainerViewController *)self.window.rootViewController;
UIViewController *leftSideMenuViewController = [storyboard instantiateViewControllerWithIdentifier:#"THE_IDENTITY_OF_YOUR_SIDEMENU"];
UITabBarController *centerViewController = [storyboard instantiateViewControllerWithIdentifier:#"IDENTITY_OF_YOUR_TABBARCONTROLLER"];
[container setCenterViewController:centerViewController];
[container setLeftMenuViewController:leftSideMenuViewController]; //for the right Side, its the same way...
[container setPanMode:MFSideMenuPanModeNone]; //remove this line, if you need the pan mode
return YES;
In your Storyboard you have to put a ViewController as a subclass from "MFSideMenuContainerViewController". Mark this View as the "Initial View Controller" in the Attribute Inspector. Now use a Segue from your new Initial View Controller and let it "push" to your TabBarController. To avoid a Warning rename the Segue.
After you have done this, you can add a UIBarButtonItem to every View, you like to add the SideMenu. In the Action Method of this UIBarButtomItem you only need to do this:
[self.menuContainerViewController toggleLeftSideMenuCompletion:^{}];
finally make sure you have a UIViewController or a UITableViewController, that is your "SideMenu" and set the right Storyboard ID.
if you are still need help, comment this...
and sorry for my english :)
You can use https://github.com/ozcanakbulut/VoovilSideMenu. It's easy to embed in a tabBarController. It uses Storyboard and Arc.