I'm struggling with this problem, so I need your help. Basically I've programmed a complex table view controller (with NSFetchedResults protocol etc) and already used it in my app and it worked great. Since I want now exactly this table view inside another view (so I can add a small subview at the bottom of the screen), I'm really struggling how to do this! I know by know how to embed a simple table view inside another view and link it to it's view controller.
But how can I do this in my case with as little effort as possible? I mean can I somehow use this table view controller I already have even though the superview must have its own view controller?! And how would I do that? Sorry I'm still a beginner :)
Since you already have a TableViewController. To add it as an subview to another ViewController's (self) view, do this:
TVC = <your tableViewController instance>;
[self addChildViewController:TVC];
TVC.view.frame = <your desired frame>;
[self.view addSubview:TVC.view];
adding the TVC as childViewController will forward UI methods of 'self' like willAppear and all to TVC.
Related
I am new to objective C. I have a small app where I have used a UITableviewcontroller(TVC). I need to add four elements.,label and button above TVC and a label and button below TVC. But it is allowing only to add 2 elements., one above TVC and other below TVC. Also added element is occupying the entire width of screen. Can I overcome this restriction???
Customize the table view cell – instead of using the default style of table view cell.
this link is helpful you with sample project
http://www.appcoda.com/customize-table-view-cells-for-uitableview/
These two are tableview properties.
tableHeaderView
tableFooterView
By using the above properties you can show your own custom view on top / bottom of table view.
sample code
[self.tableView setTableHeaderView:yourHeaderView];
[self.tableView setTableFooterView:yourFooterView];
Write this code in viewDidLoad.
UITableViewController is kind of a screwed up class, in my opinion. A UITableViewController can only manage a table view, and nothing else. If you want a more complex layout where you have a table view on part of the screen, and then other view objects elsewhere, you can't do that with a UITableViewController.
However, with iOS 6 and later, there is a pretty easy solution.
You can embed a UITableViewController as a child view controller of another view controller.
What you do is to create a parent view controller with everything you need. Then you create a container view on your parent view controller and size it to contain your table view. Then you create a separate scene in your storyboard that defines a table view controller. Finally, you control-drag from your container view to your UITableViewController, and create an embed segue.
I have a project on github that demonstrates this technique:
Demo project using UITableViewControllers as child view controllers
I'm trying to change the size of a tableView I have in interface builder and can't seem to. When I first started the app I could drag it around and stretch the sides but all of a sudden I can't adjust it. I tried to delete my tableView and add a new one but the same thing happened. Thanks in advance. Here's what I see when I try to change the size:
if your using a UIViewController you can drag and drop a tableView and can place in a custom position you want. but if your using a UITableViewController you cant move the tableView to your custom position. if you want to do it in UITableViewController you can do like below
if you want your tableView content should show from a point, that you want you can do this way,
[self.tableView setContentInset:UIEdgeInsetsMake(100,0,0,0)];
else if you want set your tableView to a frame in UITableViewController you do this way,
- (void) viewWillLayoutSubviews
{
[super viewWillLayoutSubviews];
self.tableView.frame = CGRectMake(0,100,320,300);
}
hope this will help you.
What kind of view controller are you using to manage your table view? Since you show "prototype cells", I'm guessing it's a UITableViewController. Those are built to fill the entire screen with a single table view (which has always annoyed me.)
Starting with iOS 6, though, you can create a "container" view in another view controler, and then drag an embed segue from your container view onto the table view controller. That does all the housekeeping to make the table view controller a child view controller of the other one, and then you can make it whatever size you want.
If you don't want to use a UITableViewController as a child of another view controller, you can use a regular view controller and wire up the data source and delegate methods yourself. However, things like static table views and prototype cells don't work then.
Hopefully this helps someone still coming across this problem. What I did was make sure the UIViewController had a UIView as its direct child, then dragged the UITableView as a child of the UIView, this allowed me to resize the UITableView.
I have a master-detail controller for my app. The master controller is a UITabBarController and each tab is a UITableViewController that contains different types of data.
I plan on having a main header / image on the main detail view but then need to add different subviews to the main detail view to detail specific information depending on which tab I am using.
I am currently adding the relevant subview in my
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
Function like so:
UIViewController *subview = [[UIViewController alloc] initWithNibName:#"ItemNotFoundViewController" bundle:nil];
subview.view.frame = CGRectMake(20, 160, subview.view.frame.size.width, subview.view.frame.size.height);
[self.detailViewController.view addSubview:subview.view];
However, I believe that this is a poor way of doing things - every time someone clicks on a table cell another subview will be thrown on top of the stack of previously added subviews, creating memory issues.
What I am wondering is, does ARC take care of this for me? Is my approach passable? and even if it is passable, is there a better way of doing this?
First of all, no. ARC does not take care of this for you. It's not it's purpose to do that and even if it was, how could it know, that you don't want the previously added subviews anymore?
You have to remove those subviews yourself and then ARC will take care of deallocating them (if there are no other references to them).
Anyway that's not the way you're supposed to use a UISplitViewController (the master-detail view controller). As you noticed the split view controller handles two other view controllers. The master- and the detailViewController. In most cases the master view controller isn't changing while the app runs (it's content changes, but usually that's handled by a container view controller like UINavigationController which is assigned as the masterViewController), but the detail view controller does.
Instead of adding subviews to your existing detailViewController you should replace it by a new one. So you should create separate XIBs (what you've apparently done already) for all the view controllers that you want to present in the detail-section. And modify your code to
self.detailViewController = newDetailViewController; //newDetailViewController would be the vc you called subview in your code
instead of
[self.detailViewController.view addSubview:subview.view];
Edit: Notice that this assumes that your detailViewController property does 'the right things' when you set it's value. By default the UISplitViewController only has a property called viewControllers which is an NSArray in which the first object is the masterVC and the second is the detailVC.
Take a look at MultipleDetailViews for an example of how to manage that.
Since you want to have a header view in all your detail view controllers you have various choice of achieving that (which may or may not be applicable in your case, depending on your design):
add the header view to every details vc's XIB
instead of creating many XIBs for all detailVCs, create a new custom UIViewController subclass that modifies it's content based on some parameters you give it, i.e. which tableViewCell was tapped by the user
create a custom container view controller that manages two child view controllers, one for the headline and one for the content above it.
For more information about UISplitViewController and custom container view controller, please refer to:
View Controller Basics
Creating Custom Container View Controllers
No, ARC will not take of this for you, because detailViewController.view will keep a reference to its subviews. It's hard to say what approach is best without knowing more about what you're doing with these views. It would probably be better to just present the new view controller -- it will be deallocated after it's dismissed if you don't have a property pointing to it.
I have a view controller with a table view in it and several buttons. I would like to add an additional tableview on top of the view like this (or at least what it would look like if anybody wanted to be my friend :-)):
I don't want to just add this as a subview (like here or here)enter link description here since I don't want to check which table view is being used in my tableview delegate and datasource methods. I would rather use a separate view controller.
I don't want to use a picker because I need to display a bit of info with the items in the list.
I have no problem creating the view with the corresponding controller, but how do I add it on top of the current view, just hiding portions of it?
Thanks!
Apple has a sample code of TableView which deals with this issue. https://developer.apple.com/library/ios/#samplecode/TableViewUpdates/Introduction/Intro.html%23//apple_ref/doc/uid/DTS40010139
Above URL is the link to download the sample code from Apple developer library.
Hope it helps.
This might be overly simplistic for your application, but I have found it to be effective when I have had to do something similar.
You can add this 'drop down menu' view controller's view to the main UIWindow of the entire application. You can add a UIGestureRecognizer on the window as well. If the tap is outside of the view, make it fade away and remove it from the view hierarchy.
Initially I simply added logic in my tableview datasource and delegate methods to destingwish between the two tableviews (as suggested by Scott Bossak above. But I have since switched to building my two views in storyboard and adding their view controllers as usual. However, to present the second table view I instanciate it like so:
SecondTableViewContriller *secondTVC = [self.storyboard instanciateViewControllerWithIdentifier:#"secondTVC"];
then add it as a child view controller:
[self addChildViewController: secondVC];
[secondVC didMoveToParentViewController:self];
I then implemented a protocol to pass the information back to the parent view controller once a row has been selected.
I think I am having a case of disappearing up my own arse.
I am creating a small view on a ipad thats for settings (so not full scree), within this view. I need a navigation controller to show another view.
At the moment I have one class / xib
The xib contains the main view (graphic / boarder). This view is linked to the files owner and appear.
On the same xib, I also have a navigation controller that contains the inner view.
OnViewDidLoad I add the navigationcontroller.view to the subview and it appears. However I cant push anything off it. I wired up the delegate and etc but I am sure I am missing something stupid
Can I do this all within one controller / xib?
The only code I have done is
[self.view addSubview:mainNavigationController.view];
Is there some code I need to do for the navigationController
Just adding the navigation controller as a subview doesn't hook up the navigation controller to the view controller hierarchy properly. That's probably why it doesn't work.
Also the properties that need to be set are readonly properties, so I don't think there's anything you can really do about it.