I have a UITableView with some Cells.
I don't use NavigationController, so I'd like to use UIModalTransition to Switch from RootController, my TableViewcell, to my DetailView, but want to add a Navigation bar to attribute some actions, like Backbutton.
I don't want to use seguesTransition, I only used XIB File and any Storyboard.
I really don't know how to use the Modal Transition in TableView, anyone know how i can do it ?
Thanks.
have you tried
[self presentModalViewController:yourViewController animated:YES];
then you can set certain styles for transitions in it.
On the other view add a navigationbar and place a backbarbuttonitem and add an action to it to go back to your previous view.
Although why do you want to do it is unclear to me.
if you dont want a navigation controller on the first view, you can just set it to hidden.
self.navigationController.navigationBar.hidden = YES;
and then in the viewDidLoad of other view you can do the reverse i.e
self.navigationController.navigationBar.hidden = NO;
this is quite an easy way of achieving what you want with relatively less amount of code!!
Related
I'm programmatically creating a UITableViewController class that shows a table view with a simple navigation bar (though without a UINavigationController, as there are no further levels to the table view hierarchy).
Here is the relevant code:
- (void)viewWillAppear:(BOOL)animated {
UINavigationBar *navBar = [[UINavigationBar alloc] initWithFrame:CGRectMake(0.0f, 0.0f, 320.0f, 44.0f)];
[self.tableView addSubview:navBar];
}
However, the navigation bar covers most of the first table view cell, and scrolls with the whole view.
How can I fixate the navigation bar above the table view, and keep it from scrolling through code?
The problem is that you are using UITableViewController. Switch to a standard UIViewController, add the tableview delegate and datasource methods, point the tableview to those methods, and then you do what you want to do. You could also add a UIToolbar in the XIB and create it that way if you wish.
If you really want a navigation bar, then use an NSNavigationView controller.
When you use a navigation controller, it takes care of this for you, but the navigation bar is just another subview. The remedy is to frame your table view relative to the navigation bar.
self.tableView.frame = CGRectMake(0,myNavBar.frame.size.height, 320, self.view.frame.size.height-myNavBar.frame.size.height);
Set the navigation bar's translucent property to NO:
self.navigationController.navigationBar.translucent = NO;
Having a hierarchy of data doesn't really drive whether or not you need to use a UINavigationController. There are three good reasons to go ahead and just use the UINavigationController.
You get the Navigation Bar for free, and the Nav Controller handles setting the proper frame of your root view controller when you set the nav controller's root view controller property to your view controller
If you one day wake up and say, "Hey! I want to add another layer of information to my awesome app!", you don't need to make any changes to the overall design (or, at most, minimal ones).
As my comment to #danh's suggestion implies, you're immune to whatever whacky changes Apple may decide to do with regards to nav bar height.
The solution to this behavior would be to add the UINavigationBar to the Parent View Controller's view:
[self.parentViewController.view addSubview:myNavBar];
How do I navigate back to the previous page with a UITableViewController. I tried to show a navigation bar with navigation button at the top of the screen, but the navigation bar will not show. I know that you have to give the previous view a title but when I go to do that it does not show anything. Also, since it is a UITableViewController I am not able to drop a navigation bar and add a button to the main view. All I would like to do is display my lists and have the option to navigate back to the previous list with a single button in the upper left corner.
The problem you having with the NavigationController is that your tableViewController is not in the NavigationController hierarchy. Want you want to do this when adding the tableViewController:
UINavigationController *navigationController = [[UINavigationController alloc] initWithRootViewController:yourTableViewController];
Then you can do this to add yourTableViewController:
[self.view addSubview:navigationController.view];
If you don't want the navigationBar to appear on the tableViewController just use:
self.navigationController.navigationBarHidden = YES;
in yourTableViewController viewWillAppear method.
When your going to add the view after the tableView you just use:
[self.navigationController pushViewController:someViewController animated:YES];
It's not enough to give the child view a title. You need to give the child view's navigation item a title before you present it. For example, in the parent view, before you push the the view to the navigation stack, do something like this...
[MyChildView.MyNavigationItem setTitle:#"A cool Title"];
For the navigation you are trying to achieve you should be using a UINavigationController. It already has the functionality you describe with the navigation bar and back button built into it.
To move to the next screen (which can be a UITableViewController) you use pushViewController:animated: and to move to the previous screen you use popViewControllerAnimated: (although the built in back button will do this for you).
I suggest reading the UINavigationController class documentation if you are not already familiar with it.
I'm writing my first iPhone app and I am trying to figure out how to have a MasterView and DetailsView like in the example. However, instead of using a TableView, I want to use a button on the MasterView to go to the SignUpView. I want the MasterView to NOT have a navigation bar but the SignUpView needs to have one.
I have tried putting a NavigationController into the MasterView using the interface builder. This doesn't seem to do anything at all ... I.e. I make the following call:
[self.navigationController pushViewController:signUpViewController animated:YES];
And nothing happens. The SignUpView is never shown.
So then I declared a NavigationController in the AppDelegate. The above call in the same function that it was in before (button handler, button is in MasterView) works now! It takes me to the SignUpViewController.
however, the issue is, when I press back on the navigation bar in the sign up view, the navigation bar shows up again in the MasterView. I tried to set
self.navigationController.navigationBarHidden = YES;
in viewDidLoad and viewDidAppear, but that causes a black bar to appear in the transition from SignUpView to MasterView.
I tried to not set it in one of the two, and that causes the animation to go smoothly, but the navigation bar shows up in the MasterView.
I feel like this should be pretty simple to do ... but I'm at my wits end trying to figure this out. Some help would be really appreciated!
Thanks.
Probably not the answer to your question, but just a small suggestion. In the many apps that I have come across, a sign-up/sign-in view is generally displayed as a modal view (on top of your master view) with a 'cross' in the top-right corner to dismiss it. Probably it results in a better user experience.
Also, did you try self.navigationController.navigationBarHidden = YES; in the MasterView's viewWillAppear ?
HTH,
Akshay
I had this problem too, until I discovered setNavigationBarHidden. You will probably want to use these in viewWillAppear/viewWillDisappear or viewDidAppear/viewDidDisappear. You don't want to call this in viewDidLoad because that is only called once when the view is initialized, not every time it appears.
To hide:
[self.navigationController setNavigationBarHidden:YES animated:YES];
To show:
[self.navigationController setNavigationBarHidden:NO animated:YES];
When I push a view via my app's navigationController, it automatically puts a back button on the left side of the navigationBar. Is there any way I can just remove this? (I want to put my own buttons on the screen that will allow the view to be popped).
From the comments, you can hide the back button for a viewController by using its navigationItem property. (which is the UINavigationItem corresponding to that viewController in the stack of the navigationController. its how you control what shows up on the bar for specific view controllers (see Apple Doc here)).
To answer your question, set the navigationItem's hidesBackButton property to YES. Something like this probably called in your viewControllers viewDidLoad: or similar method.
myViewController.navigationItem.hidesBackButton = YES;
have you try with self.navigationItem.hidesBackButton=YES;?
If I wanted to do it, I'd hide the Navigation bar on push (non animated hide), add a toolbar, and add any custom stuff I want to the toolbar.
on popping the view controller, make sure to unhide the navigation bar. It'll work
How can I make a custom view in iOS which appears above the existing view,but smaller? It should be like UIAlertView, but taken from a .xib file. After user taps a certain button, the small view vanishes and the normal view appears.
If this is posiible, how can I do it? And.. if it's not hard for you, please, include code.
Thanks in advance!
I think what you're looking for is a modal view. Modal views make it easy to have a view take over the screen for a little while, then when they get dismissed have the background view resume where it left off without having to worry about who's on top or handling events in partially-obscured views.
Here is Apple's article describing it.
They key is to have the controller class for your view call [self presentModalViewController:popupController animated:YES]; where "popupController" is the view controller for the view you want to show up. When you're ready to make it go away, call [self dismissModalViewControllerAnimated: YES];
You can just use the addSubview: method on your UIWindow or your visible UIViewController's view to show the UIView, and you can hide/remove it later by calling removeFromSuperview on the presented UIView.