Looking for some guidance.
In my main window nib file, i have a tab controller where each tab control item is being loaded by a separate nib file and controller. One of the tab items is being loaded by a navigation controller.
Looks like this (excuse me for not including screenshot)
MainWindow.xib
Windows
UITabBarController
UITabBar
UINavigationController (loaded from Test.xib file)
TabBar Item
Test.xib
View
Now I like to add a scrollable text in the Test.xib. So that when the user clicks on the tab item, my Test view opens up with some text that the user can scroll.
Do I need to add a UITextView as a child of my View in Test.xib ?
Do I need to add a UIScrollableView ? And how would I connect them all so that I can manage the text.
If you add an UITextView to your view, connect it to a proper Outlet in your controller, than you can manipulate the text with setText:. The scrolling behaviour is added automatically.
Yes, UITextView needs to be a child of your View in Test.xib (you can add it programatically if you like or through IB). You do not need a UIScrollableView. The textview will scroll as long as you set scrollEnabled = YES;
Not sure what you mean by "how would I connect them so I can manage the text". You can send the UITextView a message of setText to whatever text you want in there. Hope that helps some!
Related
I have a UIToolbar that I added to a UITableViewController in my Storyboard.
When this view is displayed, the toolbar will show itself directly below the last item in my UITableView. I want to "Dock" my toolbar on the bottom of the screen. I want it to display in the same place every time rather than move around depending on a variable number of table cells in my view. I need the user to be able to see all the cells as well (It can't be covering UITableView items, UITableView needs to decrease its allotted display space). How can I do this?
Edit: Using a UINavigationController to handle my views
You have a couple of options. The first and easiest of the two would be to use a UITableViewController embedded inside a UINavigationController, with the navigation controllers toolbarHidden property set to NO.
The other option is to use a UIViewController. A view controller has a UIView build in, and you can manually add and position a UITableView and a UIToolbar on it in this configuration. Both of these configurations will achieve your desired end result.
I created a MasterViewController project with a tableView, now I'd like to add some tabs to this. I tried to just drag and drop the tab bar into the MasterViewController and the tabs show, but they are linked the the last cell in the tableView.
Is there any way to make the tabs stay in place so they are always displayed? What I am trying to accomplish is to give the user buttons to push to organize the data in the tableView, so I'm open to other suggestions.
Here are the pictures:
You need to have your controller be a UIViewController, not a UITableViewController (where the table view is the controller's self.view, and is full screen). If you use a UIViewController, you can add a table view, and size it such that you have room at the bottom to add the tab bar. In that case, both the table view and the tab bar are subviews of the controller's self.view. The way you're trying it, the tab bar is added to the table's scroll view.
It sounds like you added it as a subview of the table view, so as the table view scrolls it scrolls too. Look at creating a container view to hold both the tableView and tab bar / segmented control / buttons positioned below it. You will need to make the controller a subclass of UIViewController instead of UITableViewController.
Alternatively, use the navigation bar to add some edit button(s), either to enter an editing mode which shows controls on each row or where the buttons actually edit the currently selected row.
Tab bars are container controllers and are used to present a different mode of your application. If you want to only organize your tableview data, my suggestion is to use UISegmentedControl.
Interface builder does not let me click and drag a Navigation Bar onto a Table View Controller!!! It is super frustrating.
All I want is a table view with an edit button (done in interface-builder). If this is not possible, then how do I add a navbar progammatically?
From the outline view, make sure your Table View Controller is selected.
Then go to the Editor menu, and click on the Embed In submenu, and choose Navigation Controller and voila. You have your navigation controller pointing to your tableview controller with a relationship built in.
For a table view with an edit button at the top, use a UINavigationController, with a UITableView as the rootView. That means you're going to make a custom UITableView subclass for your table view, and use that as the rootView of your UINavigationController instance. (Programatically, it's set with UINavigationController's -(id)initWithRootViewController. It's also settable through IB.)
Then, in your UITableView subclass, uncomment the following line:
- (void)viewDidLoad {
[super viewDidLoad];
// Uncomment the following line to display an Edit button in the navigation bar for this view controller.
self.navigationItem.rightBarButtonItem = self.editButtonItem;
}
and voilà, your UINavigationController's view shows up as a table view with an edit button on the right side of the navigation bar.
Since the controller is at the top of the stack, there's no "back" button on the left, so you can use self.navigationItem.leftBarButtonItem for whatever UIBarButtonItem you create.
I agree that it's difficult to figure out how to do things like this in Interface Builder, but luckily it is possible to add a Navigation Bar and Bar Button Item to a Table View this way. Here's how to do it:
Drag a blank View (an instance of UIView) from the Library to the area near the top of the Table View. As you drag near the target area, Interface Builder will highlight it in blue to show you where to drop the View. Let go, and the View will be added as a subview of the Table View's header view.
Drag a Navigation Bar from the Library and drop it on the blank View you just added.
Drag a Bar Button Item from the Library and drop it onto the Navigation Bar.
EDIT
The problem with the above approach is that, as Bogatyr points out, the Navigation Bar will then scroll along with the Table View. Apple recommends using a custom subclass of UIViewController that owns both the Navigation Bar and an instance of UITableView resized to fit. Unfortunately, that means you would have to implement the UITableViewController behavior needed by your UIViewController subclass yourself.
Another approach that seems to work well is to create a custom subclass of UIViewController that owns a blank background view containing the Navigation Bar as well as a blank content view (an instance of UIView) that fits under the Navigation Bar. Your custom subclass would have an outlet pointing to an instance of UITableViewController in the same nib file.
This has the advantage of allowing all the view components to be created and configured in Interface Builder, and doesn't require implementing UITableViewController methods from scratch. The only detail you'd need to take care of in the Table View Controller's parent would be to add Table View as a subview of the parent's content view in viewDidLoad.
The parent could implement the action methods for the Navigation Bar's button items, and implement the delegate pattern if necessary.
From iOS6 onwards, you can use container view. So what you have to do is take View controller, add the navigation bar to it, then add a Container View to same view controller. It will automatically, add the new view controller link to your container view. Now simply delete that, and your table view controller in the story board. Now embed the table view controller to container view by control drag. Hope it helps.
First add a navigation controller and put the table view controller (as root view controller) onto the navigation controller. This is how it is done in Code because I don't use IB.
Why in the world you can't drag a navigationItem into a .xib file with File's Owner set to a subclass of UIViewController and hook the navigationItem up to the UIViewController's navigationItem outlet is beyond me. It seems like a real hole in IB / XCode integration. Because you can certainly drag an instance of ViewController to a xib file, and drag a navigationItem into the ViewController, and then set the title and barbuttonitems that way.
So if you want to define your UITableViewController subclass object's navigation bar in IB, you have to create your TableVC object in a xib file (not the one .xib file that contains the tableview for your UITableViewController, though!). You then either hook the TableVC object up to be an outlet of another object (like your application delegate), which works if you need just one instance of your TVC throughout the lifetime of your app, or if you want to dynamically create instances of your TableVC in code you load this extra .xib file manually via loadNibNamed:owner:options method of the NSBundle class.
These steps worked for me in iOS 9:
Add a View Controller to the Storyboard. Make UITableViewController as base Class.
Add a Navigation Bar object onto view controller at the top.
Add a Table View below Navigation bar.
Add a Table View Cell into Table View.
Add constraints.
This is the other easy way ;
Choose your TableViewController screen on storyboard.
Click Size Inspector symbol on the right menu and find Simulated Size
Change Fixed to Free Form
You can add navigation bar easily.
Alright, this seems simple enough but I haven't found much documentation or posts regarding this. Basically, I want to have a completely custom tab bar at the bottom of my app. Being new to iPhone dev I thought I could do the following:
Place custom images on bottom of
screen to act as tab buttons.
Create a UIView (lets call it
"ContentView") to fill the rest of
the screen that will display the
appropriate tab's NIB. This
"ContentView" is inside the main
UIView for the NIB.
Hook up image "press" actions to the
controller managing all this.
I'm not sure how I would go about loading the appropriate NIB into the "ContentView" with this method though. From the "Touch Up" action method in the controller can I dynamically load a NIB into that "ContentView" UIView?
Something about this whole thing makes me uneasy.
Is there a better way?
To solve your problem I would create a nib with a UIView and its associated content in it. Connect the nib to a UIViewController. This will be the content of each tab. Create as many of these UIView-UIViewController combination as needed.
When the user touches a tab, create and load the UIViewController from the nib using
– initWithNibName:bundle:
Add the UIView in the nib to the main content view as a subview. Use
– addSubview:
As the user presses other tabs load the other nibs into memory and add their UIView into the main content view as a subview.
If a view is already in memory you can show and hide subviews with the following methods.
– bringSubviewToFront:
– sendSubviewToBack:
I think that would work.
You can solve this by,
either make different views with same tab bar image and custom button(load view on IBAction for button click:toucp up inside) or you can make different views for the same view(so you can hide views and show only one view at a time accordingly).
and you can load view (if you app is view based then add other views on window otherwise for navigation based app you need to pushViewController of navigation controller.
This is a tricky task but you need to handle this.
I'm working on an iPhone app where I'm using a navigation controller (UINavigationController) to navigate through the various child views, and I would like to add a uiview to either the main window or the navigation controller, as a footer overlay that shows up on top of all the child views. I've tried this through interface builder, and programmatically, but nothing seems to work.
Working in interface builder, I've tried adding the footer to the bottom of the main window, and decreasing the height of the child views so the footer would show up, but the children seem to resize to fill the whole window. I've tried playing with some of the options, like 'wants full screen', 'resize view from NIB', tried to resize the navigation controller and couldn't. Same problem when I try to add it programmatically instead.
I can add a toolbar to the navigation controller in interface builder, is there a way to add a UIView instead? Or even attach a UIView to a toolbar? I'm sure there's a simple way to do what I'm trying, I'm hoping someone out there has had a similar experience.
Thanks!
If you want to have a toolbar sized custom view you can just position it where the toolbar would be and add it to the window as a subview above your navigation controller. Then you don't have to worry about autoresizing ruining your fun, you'll just always be drawing your view over the navController's toolbar.
[myWindow insertSubview:newView aboveSubview:myNavController.view]
Just make sure you adjust the size of your view if you want to respond to device rotations, as the toolbar size changes then.
You may also have success creating a view hierarchy that looks like this:
UIWindow
Subview 1: Custom view which holds app content
Subview 1a: UINavigationController with your main view as its root view
Subview 2: Custom view which holds your footer content
Subview 2a...2z: whatever views you need inside your footer
That way you can make your footer whatever height you want. Just set the appropriate autoresizingMask properties on your window's two subviews so that you can ensure proper positioning as well as respond to interface orientation changes automatically.