I've written an app that launches the camera directly. I want to launch a view with settings as a modal view of UIImagePickerController, but directly after its presentation, it's disappearing.
What is the correct way to do this? I want the app to be full screen so I am using an overlay view on the UIImagePickerController.
Any ideas? I am targeting iOS7 or later.
I've added some source. This is called from my UIImagePickerController derived class.
SettingsTableViewViewController *controller = [[SettingsTableViewViewController alloc] init];
UINavigationController *navController = [[UINavigationController alloc] initWithRootViewController:controller];
[self presentViewController:navController animated:YES completion:nil];
Related
I have an app that uses only xibs, no storyboards.
I have created a prompt xib that I would like to present modally (with the modal animation) from a table view controller xib (named TVC.xib) The TVC is nested in a navigation controller.
I can get the prompt to present itself, but I want it to present itself with a modal animation. Unfortunately, the presentModalViewController has been deprecated. What is the current option to present a view controller modally in code and have it animate the same way that modal presentations used to animate?
Here is my code: (in the TVC.m)
PromptViewController *promptVC = [[PromptViewController alloc] initWithNibName:#"PromptXib" bundle:nil];
UINavigationController *navVC = [[UINavigationController alloc] initWithRootViewController:promptVC];
[self.navigationController presentViewController:navVC animated:YES completion:^{
NSLog(#"presented prompt vc");
}];
Ideally I could replace the method in the 3rd line with self.navigationController presentMODALViewController... etc, but it's deprecated.
You are looking for:
[self presentViewController:aViewController animated:animated completion:^{}];
But you should browse some tutorials to update the knowledge.
I've figured it out. I needed to set the transition style and presentation style on the view controller that I wanted to show. Here is my solution:
PromptViewController *promptVC = [[PromptViewController alloc] initWithNibName:#"PromptXib" bundle:nil];
promptVC.modalTransitionStyle = UIModalTransitionStyleCoverVertical;
promptVC.modalPresentationStyle = UIModalPresentationFullScreen;
[self presentViewController:promptVC animated:YES completion:nil];
I'm trying to go from one xib to another and I'm using TabBar.
When I move from xib to xib with PresentModalViewController I lose the TabBar.
When I use this way, it fail (like force close in android):
FirstViewController *fvc = [[FirstViewController alloc]initWithNibName:#"FirstViewController" bundle:nil];
[fvc setModalTransitionStyle:UIModalTransitionStyleFlipHorizontal];
fvc.userSelectedLatitude = saveLatitude;
fvc.userSelectedLongitude = saveLongtitude;
UITabBarController *tabControl = [[UITabBarController alloc] initWithNibName:fvc bundle:nil];
[self presentModalViewController:tabControl animated:NO];
When I use:
UITabBarController *tabControl = [[UITabBarController alloc] initWithNibName:#"FirstViewController" bundle:nil];
I get black screen with TabBar.
Since it all fail I guess it is not the right way.
So, what is the right way to do it?
The code above crashes because you are trying to pass a view controller instead of an NSString object in the initWithNibName:bundle: method.
The way to do it depends of what you really want to do. Do you want to present the xib in a modalViewController with or without a tabBar?, or simply present the view controller modally?.
UPDATE:
Fine, you have to create first your view controllers associated to each tabBar button (like you have been doing until now), after, add these view controllers to your tabBar and then present the tabBarController modally. Like this:
FirstViewController *fvc = [[FirstViewController alloc] initWithNibName:#"FirstViewController" bundle:nil];
fvc.userSelectedLatitude = saveLatitude;
fvc.userSelectedLongitude = saveLongtitude;
UITabBarController *tabControl = [[UITabBarController alloc] init];
[tabControl setViewControllers:[NSArray arrayWithObjects:fvc, nil]];
[tabControl setModalTransitionStyle:UIModalTransitionStyleFlipHorizontal];
[self presentModalViewController:tabControl animated:NO];
I think this code should work. So, try it and tell us if something goes wrong.
With UITabBarController, there is no need to manually present viewControllers or call code to switch the views. This is handled for you.
All you need to do is set the viewControllers property of the UITabBarController. Like so:
[tabBarController setViewControllers:[NSArray arrayWithObjects:view1, view2, nil]];
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 6 views in which I am placing the UISplitViewController at 4th position (i.e.the 4th view). Now when I navigate from 3rd view to 4th view (i.e. ViewController to SplitView) I want to come back to 4th view to 3rd view (i.e. SplitView to ViewController).
I am using the below code to show the UISplitViewController when I am navigating from 3rd view to 4th view.
MasterViewController *masterViewController = [[MasterViewController alloc] initWithNibName:#"MasterViewController" bundle:nil];
UINavigationController *masterNavigationController = [[UINavigationController alloc] initWithRootViewController:masterViewController];
DetailViewController *detailViewController = [[DetailViewController alloc] initWithNibName:#"DetailViewController" bundle:nil];
UINavigationController *detailNavigationController = [[UINavigationController alloc] initWithRootViewController:detailViewController];
masterViewController.detailViewController = detailViewController;
self.splitViewController = [[UISplitViewController alloc] init];
self.splitViewController.delegate = detailViewController;
self.splitViewController.viewControllers = [NSArray arrayWithObjects:masterNavigationController, detailNavigationController, nil];
AppDelegate *appDelegate = (AppDelegate *)[[UIApplication sharedApplication]delegate];
appDelegate.window.rootViewController = self.splitViewController;
Now I have created a toolbar in my navigation bar programmatically and placed a back button. Below is the code what I have tried to pop the view back to viewcontroller. (i.e. from SplitView to ViewController).
-(IBAction)backbtn:(UIBarButtonItem *)sender
{
// RepresentativeAccount<UISplitViewControllerDelegate> *represent = [[RepresentativeAccount alloc]initWithNibName:#"RepresentativeAccount" bundle:nil];
// //[self.navigationController popToViewController:[self.navigationController.viewControllers objectAtIndex:2] animated:YES];
// [[self.splitViewController.viewControllers objectAtIndex:0]popToViewController:represent animated:YES];
}
Please help thanks.
Reference: View Controller Catalog for iOS
A split view controller must always be the root of any interface you
create.
In other words, you must always install the view from a UISplitViewController object as the root view of your application’s window.
The panes of your split view interface may then contain navigation
controllers, tab bar controllers, or any other type of view controller
you need to implement your interface.
Split view controllers cannot be presented modally.
So, what you are attempting is incorrect, and in fact your app may get rejected by Apple.
How would I make this code animate in the SplashView NIB instead of just making it appear (e.g. the UIModalTransitionStyleFlipHorizontal style)? I am using a UITabBarController type project.
- (IBAction)showSplash:(id)sender {
// Hide toolbar
self.tabBarController.tabBar.hidden = YES;
// Splash
[[NSBundle mainBundle] loadNibNamed: #"SplashView" owner: self options: nil];
[self.view addSubview: splashView];
[window makeKeyAndVisible];
}
Bit hard to tell your context with this small bit of code. Basically, if you want to push a viewController modally, in your -(IBAction)showSplash method (you don't need to send the sender if you're not using it, BTW), I would use some code similar to this:
SplashViewController *svc = [[SplashViewController alloc] init]; (assuming nib is same name)
self.modalTransitionStyle = UIModalTransitionStyleFlipHorizontal;
[self presentModalViewController:svc animated:YES];
[svc release];
Then in your SplashViewController you would have an IBAction that calls:
[self dismissModalViewController animated:YES];
You don't actually have to hide the tabBar when you are presenting a modalViewController. It won't be there. The idea of a modalViewController is that it blocks all user interaction with the app except for the modal view, until it is dealt with.
Hope this helps.