I have a View in a xib file and a corresponding ViewController.
With Interface Builder I put an image, some labels and now a table view in it.
What I want to have, is that the whole view will be scrollable, because the new table view is currently only scrolling inside the tableview boundaries.
How can I put a scroll view behind this existing view with IB?
I already put a UIScrollView to the IB and put all other elements on it. Also I create an UIScrollView IBOutlet and connect it, but the screen is not scrollable...
Do I have to do something like
[myScrollView addSubview: ???];
Thank you a lot in advance & Best Regards.
You need to set the contentSize property of the scrollview before it is usable. Yeah, I know - freaking ridiculous that this isn't automatic.
Just do myScrollView.contentSize = CGSizeMake(int, int).
Related
I was googling for a while and I found similar problems but when the custom View is inside a ScrollView, but that is not my case.
I have a custom view that consists of a UILabel behind a UITextField, so I can animate that label later.
The problem is that when I add a View in my ViewController and in the Identity Inspector I set the Class as my custom class, when I use the application the UITextField within my custom view does not receive the touches well and it takes time to gain focus and therefore to open the keyboard. The strange thing is that if I move that same arrangement of views to my main ViewController in Storyboard everything works fine. Why doesn't it do it when I place it using the described method?
I plans to reuse this custom view a lot, so putting logic and views in each ViewController is not an option.
Thanks in advance
Well, the problem was in the constraints of the container UIView. That means, the UIView in my main ViewController. The Height of the UIView was a little bit smaller than the space required for my custom view, so although my custom view seemed to draw correctly, it was not receiving the gestures correctly. The solution was simply increase the height to the correct value occupied by my custom View. Thanks a lot!
I'm trying to add a UIView on top over the UITableView to mimic the iPhone Facebook style menu. I have it working fine by making the controller a UIViewController then adding a tableview however I am unable to make the menu a static menu unless the controller is a UITableView.
Is it possible to add a view ontop of a tableview and only make the tableview in the background scrollable without the view in the foreground scrolling?
Here is what I have with the subclass being UIViewController
But I am unable to make the tableview cells static via IB since it is not a subclass of UITableView Controller.
EDIT per NSJones Code:
It seems to be going somewhat in the right track. However the view still blocks the table. If I remove the view from the storyboard it will only display the table.
You can make a view hover the same way you make any real thing hover; Hold it up with something invisible.
Basically what you want to do is create a clear UIView (with user interaction disabled) that is the size of your view controller's view, and add it as a subview to your view controller's view property. That way it sits invisibly on top. then you can add a subview to that clear view and that subview won't move.
Edit:
It seems this nice clean approach won't work for you since you need your view controller to be a UITableViewController. The answer for this slightly more complex approach is to use a delegate method for UIScrollView which also works for UITableView. Apple has a fantastic demo of this concept in the WWDC2011 - Session 125 - UITableView Changes, Tips, Tricks video. If you can watch it I highly recommend it. The meat of this issue begins at about 36:10.
But to sum it up you implement the scrollViewDidScroll: delegate method. And handle the movement of the tableview by adjusting the position properties of the view. Here I am keeping an UIView property named viewToKeepStill still using this method.
-(void)scrollViewDidScroll:(UIScrollView *)scrollView{
// CGFloat stillViewDesiredOriginY; declared ivar
CGRect tableBounds = self.tableView.bounds; // gets content offset
CGRect frameForStillView = self.viewToKeepStill.frame;
frameForStillView.origin.y = tableBounds.origin.y + stillViewDesiredOriginY; // offsets the rects y origin by the content offset
self.viewToKeepStill.frame = frameForStillView; // set the frame to the new calculation
}
Instead of adding it as a subview of the table view, add it as a subview of the superview of the table view; that way it won't scroll.
So instead of this:
[tableView addSubview:viewController.view];
Do this:
[tableView.superview addSubview:viewController.view];
Assuming you want something that is visible full-time with the table, start with a view which contains both the menu view and the UITableView. Make the table smaller so it ends where the menu view begins. The table view can work with less vertical space.
If you have your UIViewController's view to be your table view then your table is going to span over the whole screen, so you won't be able to add anything on top of it.
Why not try the following:
1) create a new UIViewController
2) add a view on top where you want your menu
3) in the space left under just drag a table view from the component library
4) don't forget to set the 2 table view delegates to be your view controller class
that's about it?
I have this UIViewController which contains an UIScrollView.
In the viewDidLoad method of the first controller, I create some UIViewControllers(defined through a NIB with an UILabel and an UIImageView inside,linking to IBOutlets done correctly), then I add them to the UIScrollView.
Problem is, I can see my views and scroll through them using the scroll view, but I seem to be unable to modify the text of the label and the content of the imageView using the methods [[UIViewController UILabel] setText] or [[UIViewController UIImageView] setImage]
I know it sound like a stupid question, but I can't get past it.
Any idea why?
Thank you guys.
You need to tag the Label and ImageView.
tag means assign a integer value to label and ImageView and you can access using the tag.
You can assign tags in xib.
Then you can access the view like this[someController viewWithTag:(int)];
I think I have resolved my problem. I was trying to modify the views before adding them to the UIScrollView.
If I call my methods after the [scrollview addSubView:myView], everything works fine.
I need to implement a scrolling window in order to accommodate all the items on the form I am creating. My current implementation is a UIViewController (that's vcAddCourse) and it has a UIView in it with my current form.
Here is what I have done to add the UIScrollView into the equation.
1) Using IB, I dragged a uiscrollview object 'into' the existing uiview object.
2) Using IB, Ctrl-dragged from file owner to the IBOutlet I created for the new uiscrollview
Here is how I init this controller.
3) I made sure that all the items on my form were now dragged to be under the UIScrollview object.
Finally, over in my .m file, in the ViewdidLoad() function, I added the following line:
theScroller.contentSize=CGSizeMake(328, 680);
No joy. I see the form but it does not scroll.
Note: this on iphone simulator.
What else must I do to swap out the UIView for the new UIScrollView?
Thanks!
To keep things like these clear, I keep the scrollView and the (larger) subview separate in the xib file (as siblings). Your form should be on a UIView, and would be larger than the scrollview. That way you can use IB to layout the form exactly as you want.
To make things work you just have to have the IBOutlets to the UIScrollView and the UIView, and add the view to the scrollview in the viewDidLoad method of your viewController:
[theScroller addSubView:formView];
I'm not exactly sure, but I don't think you have to set the contentSize manually after this, as it should automatically be made big enough to fit your view. If it's not working you might try this:
theScroller.contentSize = formView.frame.size;
Hope this helps
My navigation-based-app's background looks like a paper on a cork bulletin board. My RootViewController is, of course, an UITableView. I want to have the TableView end on the paper and not on the cork. Some pictures here to explain it better:
alt text http://img528.imageshack.us/img528/3469/bildschirmfoto20091028u.png
This is how it looks when I scroll to the last row of the TableView. For this, I'm using the "Inset" property for "Content-Bottom" and "Scrollers-Bottom" in Interface Builder.
alt text http://img24.imageshack.us/img24/3469/bildschirmfoto20091028u.png
This is how it looks when I scroll to the top of the TableView.
alt text http://img28.imageshack.us/img28/64/35859544.png
And this is how I want the TableView to look when I scroll to the top.
How can I do this?
Thanks a lot ;-)
Yassin
You can make frame of your tableView with the smaller size.height parameter. It will do the trick.
Oh... Ok. I have no mac nearby right now so I don't want to post much code. I will try to explain. First of all, you should inherit your rootViewController from UIViewController, not UITableViewController. If you are using IB, you have to refer your main view to your RootViewController's view property. Then you can set background of you main view
[self.view setBackgroundColor:[UIColor colorWithPatternImage:[UIImage imageNamed:#"myImage.png"]]];
or add a UIImageView to your view and set your background image there. Then you have to add a UITableView to your view and set it's frame at any size you want. Next step - to refer your new tableView to the outlet inside your class. Smth like that:
IBOutlet UITableView* myTableView;
in your viewDidLoad: method set your new tableView's background to clearColor
[myTableView setBackgroundColor:[UIColor clearColor]];
and the last one. all your self.tableView you have to replace with myTableView.
P.S. Oh, don't forget that your new tableView should has frame with x,y,width properties, identical to your self.view's ones and tableView's height property should be a bit smaller.
Or just use insertSubview:corkBoard atIndex:1 during viewDidLoad or whatever. The corkBoard name should be whichever view the cork board is on, and index counts how many views are below it. So 1 would be only one view underneath, the UITableView. Make sense? Of course if you have more views you want underneath it, just change the index count.
In my opinion, this works better than setting a frame. The frame would have an awkward whitespace below it, while this just puts the table behind the cork. Quite ingenious :)