I have a UITableView with custom cells. In the awakeFromNib of the cell custom class I add the cell labels etc. using AutoLayout. They display fine when viewed first time.
(Blue rectangle is a single UITableViewCell)
The problem is that after I swipe the table view so that some cells goes offscreen then back again (i.e. cells are re-layout) the cell layer gets cutoff.
Another way to debug is to go to Xcode, Click Debug>View Debugging>Capture View Hierarchy on Xcode 6+. It looks like there is possibly an unused view being added to the bottom left corner of your view? Try the view debugging to see if that's the case.
Related
I am trying to create a tinder like swipe left and right in UITableView cell. Here, the tableview cell contains an image view which I can move around with pan gesture. When I initiate the gesture on the image view, I want to move it freely over my device screen.
I am facing the problem that when I move the image view around it goes below the current cell. How can I bring the image view over all others so it doesn't go below the cell frame?
I tried using view.bringSubviewToFront but it doesn't work.
Please suggest a way I can achieve this.
An image view still contained in a cell is not going to be reliably brought on top of all other relevant views. You will have to move that view from the cell to the table view's parent view while dragging (and then return it to the cell if necessary at the end).
You will probably want to look into UIView.convert(_:from:) to figure out the frame to move the image view to in the parent view.
I am working on a project to get custom news feeds from Bing news. I created a custom table view cell and populated various UI items in it. But I am having a hard time to make it occupy the entire screen, it starts from extreme left and ends on the right, leaving large gap from the right margin as show in the image. Can anyone help me out, how to correctly fix it with a detailed explanation of how constraints work in Table views and Tableview cells.
Here' what it looks like in the simulator
Remove previous constraints and add constraint to your UITableView like as shown in below image.
So you UITableView will have 0 margin from edges.
Create a UITableViewController. Just drag drop a TableViewCell into it. Add identifier for that cell and use it. By default it will occupy the whole screen.
In your case I guess you might have added constraints to UITableView. Here what you should do is pin your UITableView to Top,Bottom,Right & Left or make UITableView's width equal to SuperView.
I seem to be having a very strange problem with my UITableview cells and autolayout. So my tableview is set up as follows:
I have a UITableView within a UIViewController that I created via Interface builder using Autolayout
My tableview is using UITableViewAutomaticDimension so that the cells can resize based on the text within them.
Each cell has 2 subviews within it. A front view and a back view. The back view contains the buttons for my slide-able cells
I am using NSFetchedResults controller to update the tableview
The problem occurs when I tap on a cell and am taken to the next view. Then I create a core data item within that view and save so that it is inserted into my tableview (now behind the current view controller).
What happens is that the newly inserted cell seems to lose all autolayout constraints and all view elements are on top of each other in the top left of the cell. It also looks like they are not even contained within the front view for the cell (or the front view has a width and height of 0).
Example:
It gets even stranger. If I refresh the tableview by pulling down and the cells are reloaded it corrects itself. However, if I refresh the tableview again then the problem appears again but on a different cell. This bug does not happen consistantly which is rather frustrating.
Any help would be appreciated as I only have a few remaining hairs on my head to pull out at this stage.
Thanks in advance!
So I found out what the issue was. The issue was that I was using size classes in Interface builder but I was only using the iPhone Portrait size class and did all my work in there instead of the "any" size class. Disabling size classes and setting the project to iPhone only fixed all these problems.
Weird I know
Actually I'm using XCode 7 and I'm trying to lay out a static table view in IB. I have "sizes classes" ticked (adaptive layout) and the table view is taller than the default square scene of 600x600 points. I can work fine with the cells in the top 600 points of the scene, that is its height.
When I scroll down the height of the scene, I can't select table cells by clicking on them in the scene (but I can in the outline). When I drag any object (e.g. a label) onto one of these cells, it goes into the view outside the cell and when I put the object inside the cell by dragging it onto that cell in the outline, I can't see it on the scene neither move it by dragging (it's like it was behind the cell's content view). May anybody help me?
It's a very weird behavior... I'm getting crazy!
I'm not sure if is the same problem, but I had problems editing statics cells when there are many. So in the size inspector of the view controller I set the simulated size to "freeform" and increase the height to unreasonable levels (2000), and then I can access the bottom cells.
Here a screenshot.
I have a particular goal in mind here, searching for it is a little hard. I am trying to accomplish this (This is a photoshopped screenshot):
I have everything in this view working, except for the split row for the Company Name/ Beginning of the field row. The "Company Name" field is just a textfield, all I really want to do is shrink that neato cell background to just go behind the right side.
Create a custom table view cell that has two subviews: the text field on the left and a UITableViewCell on the right as a subview of the main table view cell. A UITableViewCell is just a UIView so you can actually add it as a subview of any view. The main table view cell will have it's background color set to transparent.
So totally complicated custom cell comes with a totally ridiculous solution. I built a view for the cell that has the one field...and another UITableView.
That second UITableView has the "Beginning of the field" text, and its cell gets the background, and I hide the background of the main cell.
I had to play around with the nested table's size and position to get the row to display properly, and make sure that the lines in the background don't shift when it hits the nested table, but it came out perfect
You could try setting the frame property of your cells backgroundView to cover only have your cell's width. Address Book handles complex forms like this with a nice look and feel--you might want to see what they've done there..
One approach would be to define a custom table view cell, set its background transparent and add the UITextField on the left and a UIButton on the right (customize it to look like your other cells), as in your screenshot.