Adding a fixed-position view on top of a view - ios

I have a UITableViewController inside a UINavigationController. I'm adding a "modal" subview to the tableView, which is a custom UIView when one of the rows is selected.
(It’s modal in spirit, not in the UIKit sense, since Apple doesn’t support modal views on iPhone, I’m adding it with a [self.view addSubview:customView] in my table view’s controller.)
I would like it to appear at the bottom of the screen and stay put there. I can get it to draw at the bottom, but once I scroll the table view, the view moves with it. Here are some illustrations:
Initial position (good):
Position after scrolling (bad):
I'm getting the bottom position by subtracting the height of all the chrome (navigation bar and status bar) as well as the height of the custom view from [UIScreen mainScreen].bounds.
How can I get the custom view to stay put? Should I constantly be adjusting its frame when the table view is being scrolled?

Your best and most flexible option is to switch to using a view controller with the table view as a subview so that you can change its frame and add sibling views. Then, when you want to add a modal you can run an animation to move the table view out of the way and slide the modal view in.

UITableViewController.view is an instance of UITableView. Means you added your custom view into a scroll view and that is why it scrolls. You can try to put your custom view into the tableFooterView property of the UITableView, which is the old school solution.
Personally I would create a container UIViewController and have UITableViewController be a sub viewController of it. Another sub viewController UIViewController or just a simple UIView could represent the footer.

Related

Table view header, storyboard, Xcode 11?

In XCode 11,
new storyboard,
add a UIViewController (sic: NOT a table view controller),
hit the + symbol top right,
drag a table view into the view controller.
Perhaps add four constraints so it is simply full-screen.
Table view attributes inspector, perhaps set Prototype Cells to not-zero, say 2.
How do you now add a header view to the table view?
(The header view should (obviously) be able to handle dynamic height content.)
The easy way of to achieve adding HeaderView to UITableView is.
Plus + button from Top Bar and Select an UIView
Then in hierarchy add the exact bottom of the UITableView.
See the image.
Your UIView element must be like that in the hierarchy.
Then the UIView calculations for dynamic view upon to you.
(You can create an IBOutlet of the this UIView and do some calculation in your UIViewController. )

How to put a UIView in a UITableView and It will be pinned on the bottom

I am trying to build a UITableView Controller, which will be my app's ABOUT information session.
At the bottom of the view, it will be reserved as circle menu. So I need a UIView with height of 200 there, when I drag a UIView to the controller, it always sit as a table cell.
As you can see, the red area always sit under the last table cell group, how to pin it on the bottom of the View Controller.
Thanks in advance.
You can't add a UIView at the bottom of the UITableViewController. If that is a hard requirement you have to switch to UIViewController. And then you can use UITableView and other UIView's as well.
If you are using a navigation controller with UITableViewController then you can use UIToolBar which sticks at the bottom of view controller but have some limitations too. See this
Get UIView controller and put tableview instead of UITableViewController. From side inspector drop UIView out of tqbleview. And in inspector menu for UIView set auto resizing mask for UIView according.

Container View or UIViewController for tableView with SubView

I have a UIViewController in storyboard that will be a sliding up menu. I want to place it in a UITableView. If I place it as subview of UITableView and prevent it from scrolling, it gets the look I want, with one problem, the section headers of tableview scroll above subview.
Now, in order to prevent this behavior, I could reduce tableview frame, but it doesn't work because my subview is inside that same frame, right?
So , if that is true, what is the best way to achieve this? Place both screens inside a third UIViewController?
Don't try to put other views inside a table view. Bad news.
If your table view is managed by a UITableViewController then that's really all you can have in the table view (unless your views are inside cells, or in headers or footers.)
If you ARE using table view controllers to manage your table view(s), I suggest you create a container view on the view controller that needs to contain the table view, then control-drag an embed segue to the table view controller. That way the table view controller becomes a child view controller of the main VC, and you can put other view elements on the screen to your heart's content.

Embed UITableView in Scrollview

I know Apple don't recommend to Embed UITableView in UIScrollview.
So this is what I am trying to do:
I have a registration form with fields embedded in UIScrollview,
for some fields I create a drop menu by presenting UITableView, the problem is when the UITableView appears with my object the didSelectRowAtIndexPath not responding.
If there is another way it I will happy to hear, if not how can I fix it in the Current situation , thanks.
Don't add the table as a subview of the scroll view, add it as a subview of the superview of the scroll view (and, consider adding it into a container view which detects touches outside the table to dismiss it from the screen without any selection being made).
If your 'root' view for the controller is the scroll view, change your view hierarchy to use a plain view as the root and have the scroll view as a subview of that.
You may also want to use bringSubviewToFront: to ensure that the presentation is correct.

UITableView grouped with transparency above to reveal content behind it?

Is it possible to make a grouped UITableView transparent above and below it's content. I am not looking for a parallax-type solution, but I have a UITableView that I add to my view controller. When pulling down on the table view, I would like to display the view controller view (that the table view us a subview of).
Right now, when I add a UITableView with the same frame as my view controller's view and add it as a subview, when I drag down on the UITableView the header above the first cell is the same colour as my UITableView's background. Instead I would like for it to reveal the content behind it more and more as the user drags down.
Is this possible and how? Thanks.

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