I am building a simple iOS application using Swift.
One of my views, displays a list of comments (cells in a PFQueryTableViewController...I am using Parse.com for my database).
My cells resize happily in order to fit the possible multiple-lines of the comments. This is MAGIC! (if you ask me)
What I am having trouble doing, is making the UIView which is at the top of the TableView resize based on multiple lines worth of content for the Label in that top view (see below).
Instead of doing multiline and resizing the view (I have set up constraints and set lines of text to 0), the label only shows one line, truncating it at the edge of the screen with "..."
Does anyone have any suggestions or solution for how to cause my top UIView to resize based on the content of the UILabel?
I was also thinking this could maybe better be done using a Container View at the top of the TableViewController?
There is a delegate method in UITableViewDelegate that lets you return the height of the head view (heightForHeaderInSection). You have to implement it making sure you return the proper height.
If you have a nib with constraints already, you can load the nib in a #property, and use the method systemLayoutSizeFittingSize that should give you enough height.
For more details checkout this post I wrote a while ago: Customize the UITableview with different height of cells like Facebook feeds in iOS
Related
I am trying to create a user profile screen. The screen will have lots of information about a user. It will look similar to this AirB
From the looks of it, it seems to be some sort of scrollView? or is it a tableView or a collectionView? (because it seems that there are some rows in there i think)
Does any one here know how this type of view can be accomplished or can be setup?
EDIT two answers below says to use a UITableview, and 2 other answers says to avoid it. Are there any benefits/disadvantages to using either?
Use only one child UIView as i will call it ContainerView inside UIScrollView and then place your child views inside that ContainerView. Use constraint to trailing and leading and top and bottom of that ContainerView to UIScrollView. and use constraint for placing child views to viewController.view not to ContainerView to then iOS will find where child views have to be.
Good Tutorial to find out how to use constraint on scrollView
Apple Technical Note
Do Not use tableview in this case, this content is difficult to maintain in a table view, really, use a scrollview, as for how, a simple googling for "swift uiscrollview tutorial"
Tableview is the best solution for this kind of scrolling views but in the screen you have mapview if it updates every moment i.e. updates with current location then it is not recommended to use tableview.
In that case you can use scrollview with custom views add subview changing with parameters.
In one of my app i did same thing using Tableview. And for that tableview i created a custom cell which have such a big height and i added all the images,map,details of user in that. And it work similar to what you want.
If you want help reply to my answer
I need to have iOS app with screen like this:
screen
The idea is when user start to scroll down the first UIView to move up until the second UIView reach the top where it will stick and only UICollectionView will continue to move up.
Currently I'm using this structure
UIScrollView (main scroll)
UIView (some banners)
UIView (UISegmentedControl)
UICollectionView (grid with items, scroll is disabled, main scroll is used)
I manage to do it, but I needed to set UICollectionView height constraint manually in the code (calculated based on all items in grid) in order to appear in UIScrollView (everything else is handled by AutoLayout in Storyboard). The problem with this is that UICollectionView think all cells are visible and load them, so the whole recycling & reusing thing does not work. It's even worst because I use willDisplayCell method on UICollectionView to load more data when last cell is displayed, but now it load all pages at once.
My question (actually they are 2)
How can I fix the issue above?
What is the right way to achieve this functionality? Maybe my whole approach is conceptually wrong?
Collection view is a scroll view itself. So maybe you could have same functionality only with Collection view with sections or even custom layout?
I have a UITableView and one of my table cells is a UICollectionViewController subclass that contains a UICollectionView of displayed email addresses. When a user adds an email the UICollectionView and it’s cell in the table view should get taller.
I’m currently attempting to do this setting my collectionView height constraint to collectionView.contentSize.height in the LayoutSubviews method of my collection controller/cell class. My issue is that the cell in the UITableView is not changing size when this happens.
I am assuming that this is because there is nothing telling the table view that the height of the email entry cell has changed. I am currently using dynamic cell sizing - or trying to anyway. Even, if I call tableView.reloadData() this still does not work. I’m wondering if someone could give me a high-level idea of how they would set this up.
UPDATE:
I had a broken constraint issue that was part of my problem, but this is still not solved. While have proven that I can update the height constraint and that will update the size of the collection view, it's out of sync. It's always one update behind. Here's an image showing the 'UICollectionView' in green and you can see in the logs that I'm updating the constraint (yes, multiple times) each time after adding a new item to the collection, but it is not updating the bounds of the view instance. In this example, if I were to add a new item to the collection, the next time I inspect bounds.height it would be at 149.5. What am I missing!?
i had answered this question in another tableview inside tableview cell that will work for collection view too ,i explained it in this thread
ask me if you faced any problem
It seems you want to set the height of your table view cell dynamically. This detailed tutorial walks you through making a custom cell class that will have dynamic height. Unfortunately, this tutorial only walks you through how to do this with auto layout constraints and a storyboard. In the tutorial you'll notice that the height of the cell depends on the constraints put on a title label within the cell. Try doing the same thing, but applying the constraints on the content in your cell (the collection view cell).
http://www.raywenderlich.com/73602/dynamic-table-view-cell-height-auto-layout
I'm trying to find a way of making the height of a UITableView change depending on how many rows are in the table being displayed.
I've gone through the site for previous questions but none really come to any conclusion.
Language being used is Swift on iOS 8.
Thanks,
Anthony
Use tableFooterView to pin content to the bottom of a UITableView
EDIT:
The tableFooterView (and tableHederView) can be modified directly in Interface Builder by dragging a view below (or above) the prototype cell(s) in your table view.
I wanted to do this within the IB. The way around it was to drag a new view underneath the prototype cell that was already showing in the IB. Then I could change the size to suit my footer content and then just add the footer parts of the layout to that new view within the Table View.
Since it's not possible to "hook onto" this and get an answer, and none of the answers do it, I thought I'd ask if anyone ever succeeded in doing it and if so, how.
I've created a New File, selected subclass UITableViewController with XIB, and everything works fine. I can set the height of everything (with delegate methods), but not the frame of anything.
Right now the table is as wide as the iPad and it looks kinda corny with the short titles in each cell - and there is nothing in IB that changes the stretching or layout.
I'd be happy with any solution that causes the cells to shrink horizontally - like margins. I tried scrollview insets in IB, but they only add to the size of the scrollview so it gets bigger than the screen.
I think that you want to subclass UViewController and add a UITableView to it, and make it the size you want in IB.