I am trying to make a drill down table with storyboards in a Tab bar app.
I am having a problem with working out how to get each row in a main table to point to other different tables.
This is the code I have used to detect row selection.
-(void)tableView: (UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *__strong)indexPath {
TableViewController *table = [self.storyboard instantiateViewControllerWithIdentifier:#"table"];
[self.navigationController pushViewController:table animated:YES];
}
How do I proceed please?
The real beauty to UIStoryBoards are the segues.
1. You can link one prototype cell push segue to another different table view controller
2. You can link one prototype cell push segue loop back to itself for drill downs.
[self performSegueWithIdentifier:#"segueID" sender:MyObject];
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
if([segue.identifier isEqualToString:#"segueID"]) segue.destinationViewController.chosenCell = sender;
}
If the segue is from the cell click, the sender is that of the cell and you can get it's indexpath from the table, and pass new information to the upcoming view controller.
If you want the cell to take various paths when clicked, keep the didSelectRowAtIndexPath and call performSegueWithIndetifier so you can choose left or right.
Tutorial: http://jleeiii.blogspot.com/2012/05/uistoryboard-power-drill-batteries.html
GitHub: http://www.github.com/jllust/UIStoryboardExamples
I was extremely frustrated with this, as the storyboards with tableviews is really not covered ANYWHERE. I literally almost pulled my hair out trying to figure this out. So my frustration is your luck!
Comparing your code to mine, yours looks fine other than the fact that in the initial didSelectRowAtIndexPath: method, you have *_strong, which should not have the _strong part. It should just be like this: (NSIndexPath *)indexPath {
Additionally, be careful in when you are referring to the instantiateViewControllerWithIdentifier in Interface Builder. I accidentally filled out the name of the instance variable under 'TITLE' instead of 'IDENTIFIER'
I hope this helps. I completely understand your frustration.
In your storyboard, if the content is Static Cells, you can ctrl-drag from the specific row to a Navigation Controller. Then connect the Navigation Controller to your next table. Look at this screen shot. http://cl.ly/1V2y0v202y390U0A351x
My guess is that progromatically, you'll need to do something similar, segue to a NavigationController which has a table view controller as it's root view.
Related
So I guess this is going to be closed for being too subjective and too opinion based but if anyone can help me I would appreciate it.
I got a question. If I have a few controllers that all have almost the same thing For example they have the same background, have a menu going around the edge but the actual content is different. I had a couple of ideas. 1) Just have one view controller and just kill the objects for that current view if the user chooses a different option on the menu and spawn the new objects for that menu. My issue with this way was that I could't find a way to use the auto layout with this.
Second way would to be have a function in a .swift file that I can call and it creates an image view and sets up the menu an everything like that. I have the opposite issue here though, now the auto layout won't work.
App devs must have a way of doing this, I'm just probably thinking of this completely the wrong way.
Is there a better way to be doing this - I am sure there is? I would appreciate it if someone could point me in the correct direction.
Thanks
EDIT:
I should make it clear that the language I am using is swift.
You can create custom container view controller and swap the view controllers for the part that change according to the user selection.
--Adding Example--
e.g iPad's Settings app. The left side is a table view and right side is detail view which changes on user selection. So Tableview can be wrapped in a view controller let's say ListViewController. This will not change. The right side will be DetailViewController which would be swapped according to user selection. Your ContainerViewController will have 2 view controllers at all times.
Here is how to add view controllers as child and set their views in objective-c.
- (void) setupContentViewControllerWith: (DetailViewController*) detailViewController andListViewController:(ListViewController*)listViewController {
[self addChildViewController:listViewController];
[self addChildViewController:detailViewController];
listViewController.view.frame = CGRectMake(kListView_X, kListView_Y, kListView_Width, kListView_Height);
detailViewController.view.frame = CGRectMake(kListView_Width, kDetailView_Y, self.view.bounds.size.width, self.view.bounds.size.height-kDetailView_Y);
[self.scrollContainer addSubview:listViewController.view];
[self.scrollContainer addSubview:detailViewController.view];
[self.scrollContainer setContentSize:CGSizeMake(kListView_Width+self.view.bounds.size.width, self.view.bounds.size.height)];
}
When user selects new item from the list, you can swap DetailViewControllers as below
- (void) replaceEpisodeControllerWith:(DetailViewController *)detailViewController {
detailViewController.view.frame = CGRectMake(kListView_Width, kDetailView_Y, self.view.bounds.size.width, self.view.bounds.size.height-kDetailView_Y);
[UIView transitionFromView:currentDetailViewController.view
toView:detailViewController.view
duration:0.0
options:UIViewAnimationOptionTransitionNone
completion:^(BOOL finished)
{
[currentDetailViewController.view removeFromSuperview];
[currentDetailViewController removeFromParentViewController];
[currentDetailViewController release];
currentDetailViewController = detailViewController;
}];
}
I don't have swift version of this.
I am developing a cocoa app where i need to create Menu and Submenu's in my application.
I have attached a screenshot designed using flex. How can i do the same in cocoa.
Any help would be appreciated.
Thanks.
Your question itself is incomplete,though will try to match the solution your expecting…The screenshot you posted(you never mentioned the source of the screenshot you have taken,by analysing the design i edited in your question as “Flex”) looks like you don’t want to deal with NSMenuItem and NSMenu classes for the drop down menus…
Solution 1: Make a custom View(probably subview of NSView like popview) that handles input, displaying labels,imageviews etc.
==> Basically,both the menu bar and menu item are wrapped to an NSView And the drop down menu is wrapped to an NSPanel…Well as per the design you have to use NSView,because you will be able to add the corner you like and yes,there is a possibility of adding back ground colour as well…The menu item actually has subviews of NSTextView. If its a menu bar item then it only has one text subview for its title, and if its a sub menu item then it has 3 text subviews, one for the check mark, one for the title and one for the hot key list…No need to worry about the handling the events,the respective classes do their own event handling…It’s quite a complicated solution,but matches your requirement…
Found some example for you,check out this code which is in C++.
Solution 2: NSTableView with custom cell.Could be fugly, but maybe worth a shot.
==> Create a custom NSTableCellView/NSCell,with NSImageView(for icons like Pen), NSTextView(for the text “Pen Thickness”) and one more NSImageView(for the right corner icon) as it's subviews …You have to perform one of the two actions when user hits your cell…(1) If you would like to have the submenu,then again that cell should create one more NSTableView using the origin (cell.frame.origin.x+cell.frame.size.width, cell.frame.origin.y)…(2) If there is no submenu,perform the direct task...
Example: Assume "MenuItemCell" is the custom class name,in the delegate method tableView
willDisplayCell add the cell...
- (NSView *)tableView:(NSTableView *)tableView viewForTableColumn:(NSTableColumn *)tableColumn row:(NSInteger)row {
MenuItemCell *cell = [tableView makeViewWithIdentifier:tableColumn.identifier owner:self];
result.imageView.image = //ur image
result.textView.setString//;
result.imageView.image = //corner image icon,if you would like to have submenu upon clicking this cell.
return result;
}
On selecting the custom cell,
- (BOOL)tableView:(NSTableView *)tableView shouldSelectRow:(NSInteger)rowIndex
{
NSLog(#"%i tapped!", rowIndex);
NSTableCellView *selectedRow = [tableView viewAtColumn:0 row:rowIndex makeIfNecessary:YES];
//if you would like to have the submenu,display one more NSTableView,based on the cell origin as i described above...don't forget to add the animation..
return YES;
}
Happy Coding.. :-)
I have an Xcode app that creates a tableview and then populates this with data from an sqlite database, this works perfectly and allows me to push data to a new view and delete etc,
This tableview is the first view loaded on a tab bar controller. The problem arises when i move to another view on the same controller, i.e. create an athlete, in this view i can add a new athlete to the database (which works fine) but when i go back to the tableview on the tab bar controller, the table is the same, i have to log out and log back in to see the change in the table,
I have tried [self.tableView reloadData] in the viewWillAppear function but this does nothing. I know that the function is getting called as i have placed an NSLog in their just for peace of mind.
I have found what i think may be the solution on here but i cant get it to work!
viewWillAppear, viewDidAppear not being called, not firing
i will post my code below and a screen shot of the storyboard as im convinced it is my poor way of setting up controllers that has caused this error. Any help would be much appreciated as i am now at the meltdown stage :D
-(void)viewWillAppear:(BOOL)animated {
//[super viewWillAppear:animated];
//[self.tabBarController viewWillAppear:animated];
[self.tableView reloadData];
NSLog(#"i just ran viewwillAppear");
}
- (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath {
athleteObject *athObj3 = [athletes objectAtIndex:indexPath.row];
athleteIdDelete = athObj3.athId;
[self openDatabase];
[self deleteAthleteFromDataBase];
[athletes removeObjectAtIndex:indexPath.row];
[tableView reloadData];
}
reloadData works in my commitEditing function (this updates the tableview when i delete an entry via a swipe)
any help would be much appreciated, il post the screen shot below.
(cant figure out how to load a screenshot if its even possible)
It looks like athletes (a NSMutableArray I assume) is not being updated in viewWillAppear. Have you tried running the selector that populates the array from the database before calling reloadData?
Hope that helps!
I'm assuming you're setting the number of rows/sections in your code based on how many objects are returned from a database.
Set a breakpoint at this method, and get the count each time the compiler breaks. You are probably not getting any objects from the database, and therefore the compiler never runs the rest of the table view dataSource methods.
I'm fairly new to xcode, and am creating a single view application with five views (xib files). I am not using navigation controller or storyboard for two reasons.
If I use Storyboard, I am forced to have my other views be UIView files. These dont have
-(void)viewDidLoad
Which prevents me from loading a few timers I have in my application.
I am able to navigate from the first page to the second and so on, all the way to the fifth page/view with the following code.
-(IBAction)pagethree {
countdown=[[Countdown alloc] initWithNibName:#"Countdown" bundle:nil];
[self.view addSubview:countdown.view];
}
However when I want to go back from the fifth view to the first page I run into a problem.
My first view is called ViewController. If I try the code from above, my app is full of errors.
I also tried using
-(IBAction)back {
[self.view removeFromSuperview];
}
but that only took me back one view.
My fifth view controller is called Statistics and the first one is called ViewController.
What can I code to get from back from the last view to the first?
Thanks
First, to answer your question, you need to do a removeFromSuperview (or similar) for each addSubview: you did. Each time you do addSubview, you're placing your new screen "on top" of the last one, like a stack. When you reach your 5th view, you have 4 other views "behind" it. (Actually, that's not exactly what addSubview does, but I'm just describing the effect in your particular situation).
But I think you're doing it wrong... You should read more about storyboards and navigation controllers. Both are used with UIViewController and support out of the box what you're trying to do by hand. For example, using a navigation controller, to push a new view controller you can do:
[navigationController pushViewController:viewController animated:YES];
You can do that as many times as you want. Then, to go back once, you do:
[navigationController popViewControllerAnimated:YES];
And to go back directly to the first one:
[navigationController popToRootViewControllerAnimated:YES];
Hope this helps.
I'm just learning and playing with the apple Seismic XML example
http://developer.apple.com/library/ios/#samplecode/SeismicXML/Introduction/Intro.html
I've got most of it figured out, but the one area I can't get past is, if I want to remove the tableview controller and create a view controller populated with a tableview. I can get the tableview to appear fine, but no matter what I try I can never get it to populate.
In the viewdidload area I can setup the tableview, color the background, do whatever I want to do, but I seem to 'lose' control of it somehow.
In short, would someone please be able to give me the steps involved in correctly changing the tableviewcontroller to a viewcontroller with a tableview in the apple example?
Thank you.
Lian, you need to read the documentation on UITableViewController. http://developer.apple.com/library/ios/#documentation/UserExperience/Conceptual/TableView_iPhone/AboutTableViewsiPhone/AboutTableViewsiPhone.html
I'm not sure what you mean by "remove the tableview controller and create a view controller populated with a tableview" or why you would want this configuration. If you're having trouble with populating the tableViewController, you just pass in the data, usually from an NSArray or NSDictionary in the cellForRowAtIndexPath method. You either need to select the UITableViewController template when you create the class file or include the UITableViewDataSource and UITableViewDelegate if you're adding a tableView to a ViewController.
If you mean you want to change the view controller on screen, then you're looking to pop to another view using the navigation controller.