In my app, I have added an UITableView over a ScrollView. I have disabled scrolling in table view.
So, only the scrollView Scrolls, I have adjusted the scroll view content Size with the tableView Frame. So, I can access all the cells.
Consider, there are 5 rows visible in the screen, if I tap any of the row, the didSelectRowAtIndexPath method gets called. If I scroll down, say to 6th cell and tap on it. The method doesnt gets called.
Same issues happens with UIcollectionView.
The reason why I have added so is. When I scroll the Scroll View, a view in that should get fixed in the top and the tableView behind it should go on scrolling. You might have seen in many of the apps in Android. So, I have used the ScrollView didScroll delegate to get the offset position. As per it, I will make the view to be fixed and vice versa.
Make the height of UITableView same as the content height of table.
Then set the content size of UIScrollView as the height of UITableView
Here is a brief example to demonstrate
CGRect rect = tblTopics.frame;
rect.size.height = tblTopics.contentSize.height;
tblTopics.frame = rect;
self.scrlVwFacultyDtl.contentSize = CGSizeMake(self.scrlVwFacultyDtl.frame.size.width, tblTopics.frame.size.height);
In the above example the tblTopics is the instance of UITableView and scrlVwFacultyDtl is the instance of UIScrollView
hope it will help you..
Related
Im trying to implement a CollectionView inside my viewController.
And it works just fine.
The problem Im having is that the CollectionView scrolls inside the Parent controller.
I wish to make that if you scroll the collection view - the whole view is scrolled and not just the collection view bit.
I tried disabling scrolling on the Collection View but then nothing is scrolling anymore.
So how would I go about setting the collection view, so that once you scroll on it the whole page scrolls and not just the collection view scrolling inside the parent view controller?
It should be simple, and you've done one right thing already.
Disable scrolling of your collectionView (or tableView, in the future just in case you'll use it, they're basically the same).
Add your collectionView (or tableView) inside a scrollView.
That scrollView is of course in your controller's view.
Make sure every constraints are set properly.
You might need to get the size of your collectionView (say height), and set that height value to the constraint height of your collectionView.
These answers of mine in the past should help you:
https://stackoverflow.com/a/52657995/3231194
https://stackoverflow.com/a/54211275/3231194
https://stackoverflow.com/a/53971539/3231194
Voila. The only scrolling enabled is your scrollView that contains your collectionView (or tableView).
I have a problem with a UITableView not detecting touches.
In an iPhone-only app, I have a UIViewController, which containts:
UIScrollView
UIView (let's say a content view)
Some labels
UITableView (last)
The labels have a dynamic height, because they contain some text that I must retrive from the web, so I'm using auto layout.
I'm setting the content size of the UIScrollView inside the viewDidLayoutSubviews method, and I'm doing this by summing UITableView.frame.origin.y and its height.
Here comes the problem: when the labels contain only some words and the UITableView does not exceed the iPhone screen size, everything works ok. But when they grow, and the UITableView gets pushed down, when I scroll down I can't click on the cell anymore. Also, if when loading the view the table is half visible and half not, I can click the visible cells, but if I scroll down, I can't click the others.
I'm using swift 2 and Xcode 7.
Here is an example:
Clickable:
Unclickable:
Do the following thing:
yourView.clipToBounds = true
Now, if UITableView does not appears means your UIView is not same bigger to hold down UITableView.
Make sure that your UIView height is bigger to hold the contents in it and then try to tap on it.
Updated:
If you are using AutoLayout, then do the following thing.
Give the fix height to UIView
Take the outlet of height constraint of UIView
Now, in viewDidLayoutSubviews change the constraint of UIView to UITableView contentSize height.
self.heightConstraint = self.tableView.contentSize.height
Let me know, if this helps!
Adding some info to the #Rémy Virin's answer here:
From Apple Documentation, you shouldn't embed a UITableViewinside a UIScrollView.
Important: You should not embed UIWebView or UITableView objects in UIScrollView objects. If you do so, unexpected behavior can result because touch events for the two objects can be mixed up and wrongly handled.
Addition:Solution Since you want to scroll the content above table also, the one solution is place a Header View for the Table and place the Content over there to make it Scroll along the Table View.
If you use Autolayout, no need to specify contentSize to UIScrollView as it will automatically expand by taking the height of its subview.
In your case, increase the height of the Base UIView (content view as mentioned by you) which holds the tableView when the tableView height increases.
UITableView becomes unresponsive when it extends below its container view.
On one screen,I am having some content and below that having collectionview,so I want to know how to manage scrollview of screen and scroll of collectionview.I cant make disable collectionview scroll bcoz I am using paging for collectionview on DecelerationEnded delegate method,So for that I ahve to use scroll of collectionview.
So,please give me solution that how to mange these two scrollview same time because screen is not responsing for two seconds.
You can put tag(self.scrollView.tag = XXX) for the scroll view and put conditions in the delegate methods.
The scrollView, which is there with UITableView dose not change it's size.
So I have a UITableView, where Cells are added by the User. Right after adding these cells, I'm calling
[self.tableView reloadData];
Now the tableView shows the new cells added by the User. fine. But, if the tableView get's larger, if it's too big to show everything in the view, it doesen't change the size of my scrollView. I have no scrollView in the view, aside from the "normal" scrollView, which comes with the UITableView. So I can't scroll to the last row, because the scrollView is "too small".
Is there anything I forgot? I'm thinking of something like
[self.tableView.scrollView reload];
I'm using the same concept in another class: The user is able to add cells and they're shown. But in the other class the scrollView "resizes" correctly.
I assume that you have table inside a scrollview. You need to change content size of scrollview after adding cells. Height of content size should change according to content in scrollview so that you can scroll through whole content.
Updated answer:
I think your tableview's frame is larger. It is crossing window's bounds. Try minimizing tableview's height.
I have a custom table with just three cells. In third cell I have a textView. The three cells cover up enough space on the screen so that just the keyboard space is left. I don't want anything to be movable or scrollable, so I used self.tableView.scrollEnabled = NO;.
This is working fine with earlier version of iOS. However with iOS 5, it shows some weird behavior. When I enter multiple lines of text in textView the whole table scrolls up. Ideally the table should stick there and only textView should scroll.
After trying lots of things I found that the textView is placed so near to the keyboard (as the textView is placed in last cell and just below it is the keyboard) that the iOS tries to move the textView up, for which it scrolls the complete table up. Is there any way to stop this auto scroll of tableView.
I found the same problem mentioned here
Disable UITextView scrolling the containing view?
however it is also not answered yet. And the workaround mentioned over there won't work for me as my containing view itself is scrollable (UITableView)
for me, i work around with scroll in table view like this
-(void)scrollViewDidScroll:(UIScrollView *)scrollView
{
if(self.tableView.contentOffset.y != 0)
{
self.tableView.contentOffset = CGPointMake(0, 0);
}
}
One solution is to add a completely new subview on the fly. Add a UITextView to self.view and give it a frame that corresponds to the same position on the screen. The table view should not scroll now.
In case this does not work because self.view is the table view, change your controller into a class UIViewController and implement the delegate and datasource methods yourself (i.e. you have to mention them in the #interface declaration). The table view should then be a subview of self.view and you have to hook it up via IB.
Before you dismiss the keyboard, copy the content to your original text view.