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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I am trying to achieve whatsapp style drag tableview to show custom view, here is the screenshot
but I am clueless how to show custom UIView on top of UITableView when UITableView is dragged down
You can place your UIView behind the table view, and have its height grow as you drag down. Where you read the scroll offset for your table views scroll delegate.
I would like to make my UITableView load covering half of the window with a background view that starts visible, and as the window scrolls, is gradually covered by the table's cells.
Initially, I want to style is like so:
As the user scrolls, the cells will cover the background element.
The only way I could think to accomplish this would be to put the background element behind (and outside) a ScrollView (which is sized to fit over the background element and has a transparent background), put the TableView inside the ScrollView, and set the load coordinates to start the table far enough down. Is there a better way to accomplish my desired design?
I would prefer to avoid this layout because I would like to be able to easily add more cells dynamically as the user scrolls, ideally without having to deal with resizing the ScrollView.
You can take a view inside table view just above the table view cell and make its height whatever you want space in table view and make a outlet of that view. Then in view did load assign the view as table header view like this.
self.tableView.tableHeaderView = self.headerView;
This will be displayed exactly like you given and when user scrolls it will show the below cells and when you want you can change the frame of the header view and your header become invisible. You can do it whenever you want i mean if you want to change height on scrolling or if you want to change on adding more cells.
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.
I am working in a profile ViewController. This profile has a main image in a UIView subclass and a CollectionView gallery with some images. I would like to be able to scroll up the UICollectionView and move the UIView too, and if I scroll down, I want to watch again the UIView when the collectionView first item is showed again.
I have tried to do this adding the collectionView and the UIView to a ScrollView, but the UIView only scroll up if I touch it.
In this picture you can see my problem
Thank you in advance
You need to make the view at the top a Header View of the collection view.
Essentially it needs to be an actual part of the collection view if you want this action. (That's the easiest way anyway).
So the collection view will take up the whole screen but it will have a header view. Then when you scroll the collection view the header will move out of view and then come back in when you scroll down again.
I have a rather large table header view above my table view. I have a number of subviews in that header view. I am doing something a bit nonstandard where I am "sticking" some of those subviews (but not all) at the top of the table view.
My problem is that although visually the table view cells pass under the sticky table header subviews, it seems that the table view cells are "above" the table header view in terms of touch response. (For example: I have a button that is a subview of the table header view. When there are no cells underneath the button, the button works great and responds to touches. However, when the user scrolls the table view so that there are cells underneath the button, a touch on the button actually selects a hidden cell rather than push the button.) Can anyone give advice on how to "raise" the table header view above the table view cells, so that its subviews get first shot at touch handling?
I am using a table header view rather than a section header view due to the fact that I only want some of the subviews to stick (letting the others scroll up off the screen as usual). One of the subviews also can be expanded (and that expansion is animated) - to a height that is even bigger than the entire height of the screen. For these reasons, I didn't think using a section header view would be feasible. (If it is, please let me know, as I know that section header views are "above" table cells when it comes to touch response.)
You may try this, which would keep the desired header view on top of the others.
[yourView bringSubviewToFront:yourSubView];
This may be able to help as well:
http://www.iphonedevsdk.com/forum/iphone-sdk-development/5222-keeping-subview-front.html
Is this what you were looking for or did you want another approach?