I now have some table with some custom cells in it. It' can be scrolled, cells provide some information and can interact with user with some buttons and so on.
Is where any way to resort the cells with some animation without whole table reload?
for example I have cells with tags 1, 2, 3, 4, 5 - placed as I wrote here. I want to resort it to become 2,5,1,3,4 for example - and user must see the cells moving to it's new place - but without table reload. Now I have to reload the table - so there is no any visual animation and to user it can be hard to understand what there is go on...
Maybe this question will help you:
UITableView animate row reordering upon sort
You probably cannot use the tag for each TableCell, but I cannot see how you get your data for your cells so can't help you much there. If you use a model, you could add a field to define the sorting order.
Hope this helps you in the right direction!
I complete with my own question, thanks to Laura for provide me help where I found the way to do what I want. The main point of it - to use
[_tableView moveRowAtIndexPath:indFrom toIndexPath:indTo];
for it. There is exist some not easy things here with indexPaths of items currently not visible on screen, but main thing - cell move - os ok.
Related
I already found entries with that topic on this page and also a website that provides a tutorial for that problem. But nothing worked very well.
The tutorial sad I should double the height of my tableView so cells loaded earlier, but with a higher tableView I never reached the last cells.
My problem is, I use a tableView to display my apps mainpage. This mainPage shows every time a topic and if its necessary for that topic it shows for example a cell with a map, one with pictures and sometimes not. Problem now, if I trying to scroll to my view its always lagging because it loads a map or this pictures. And scrolling back again because the loaded cells already deleted. I used a tableView because of the possibility to switch celltypes(mapCell, pictureCell, textCell) on and off.
I understand this feature, because of memory issues but in my case its not that much and it would be better if all my cells be preloaded and stay in memory until I change the topic.
Is there a swifty way to told my tableView to have this behavior?
Thanks a lot and nice greetings
I would suggest a different approach. Set up your table view controller to install placeholder images in your cells, trigger an async download that you cache to disk, and then update the cell with it's downloaded content if it's still visible when the download is finished.
There are various third party frameworks that do all this housekeeping for you.
Declare a cell array.
Follow these steps whenever change in your topic.
Clear you array
Create and configure all cells add to your array.
Return these cells to datasource methods using row index. Don't use tableview dequeue method here.
The question is hopefully pretty straight forward. In one of the tabs of my application where I'm presenting a set of data from Core Data, I want to give the user the option of a Grid view or Table view. Both views should share the same custom header with a button in the header that let's them toggle.
I see it in other apps all the time, but couldn't return any searches. I'm getting stuck on how to flip between the 2 controllers based on different classes.
Any help or guidance is much appreciated. Thanks a lot!
Assuming you are using a UICollectionViewFlowLayout, just adjust the itemSize property of your items to be the width of their containing view.
Bam. Instant "table view"
Sure, it's not quite a tableView, and reasonable people can disagree over when a tableView might be more appropriate than a collectionView, but for what you describe (giving the user a choice between rows or grid), it's probably the magic bullet you seek.
I have a table view with expanding cells for each of them. I want to make every expanding cell be a new table inside of the bigger one. Is that possible? I've done the research, someone said that duplicate UITableView cannot put in one file.
For example
dish order1
=================
dish order2
rice
coke
===============
dish order3
which every "dish order #" is a cell of a table, and when you expand one cell, there will be a smaller table appears. I've done all the expanding stuff. But don't know how to put a small table into a bigger one. Thanks
Well if i understand your question correctly, what you search is called nested tableView, here's some examples:
SDNestedTable
ExtensiveCell
CollapseClick
JKExpandTableView
Good luck.
It would likely be impossible to put one table view inside of another table view, and if you did manage to do it, it would be awful. Ask yourself, have you EVER seen this in a commercial app? If not, as a novice iOS developer, you are out of your depth trying to invent new UI paradigms.
Master the existing UI tools first. Don't try to use the UI elements in totally novel ways until you have a strong feel for the standard way to use them. Expect this to take 6 months or more.
Others have suggested a sectioned table view where initially only the first element of a section is visible, but when you tap on it, it expands to add other rows. This works quite well.
Another approach would be to use a master/detail UI, where tapping on one table view cell pushes a new view controller the uses a new table view to display detail information about the previously selected item. There are some use cases where you might have several levels of increasing detail.
I really do not think you want two instance of UITableView, instead what you want is a sectioned UITableView which expands when it's header is tapped. Apple has a good sample code for this here:
UITableView expand/collapse
i have demo for you , just got from github..
https://github.com/mitsBhadeshiya/ExpandingCell
i hope this is helpfull for you...
Have you considered using one UITableView with multiple sections? You can accomplish what you are depicting above with only one tableView.
Since this was a problem for many people in the past, iOS 9 has a thing called Stack View, it does exactly what you are saying.
Check out this article.
First of all i am using shinobicontrols for developing interactive UI controls (Grids) for iOS using Objective c and please don't suggest me some other controls as an answer because i need to use only this.
I am half way stuck while using this control. i have downloaded demo code for grids provided by shinobicontrols (trial for 30 days). from : http://www.shinobicontrols.com/shinobigrids/product-tour/get-started-quickly-and-easily/
I was able to reorder rows and columns, edit contents of cell, re size column width by pinch gesture and much more.
But i couldn't add a new row or column to the existing grid. Just wanted to know whether this can be achieved.
Thanks in advance.
Edit the datasource (add/remove) item and just do [grid reload];
I think this should do.
The above answer seems to be correct. Adding my views Shinobi grids can be considered as UITableView cells, If you simply change the data source array of the tableview and call [tableview reloadData], number of cells displaying on the view will also change. There is no option to add a row still.
Look at this one. It is in alfa stage, but it will be quite a powerful in month or two, I would say. Any suggestions are welcome and it's free, of course. Number of rows and row content is fully controlled from delegate, so it is dynamic.
When editing my UITableView, I give the option to move cells to reorder the data. However, The top two cells in the table are cells that give information about all of the cells in the table, and I dont want the user to be able to move information cells into that section. Here is a picture of the problem:
The user shouldn't be able to drag the cell titled 'This is bad!!!' into the section with the 'Total:' and 'New Group...' cells. Is there a way to control this functionality? I haven't seen a delegate method that does this, but I could have missed one.
Edit: oops! I just saw that someone else has asked the same question on SO, so I'm going to post the link and close this question. Thanks #fzwo for your help.
How to limit UITableView row reordering to a section
tableView:targetIndexPathForMoveFromRowAtIndexPath:toProposedIndexPath: from UITableViewDelegate is what you're looking for.
In your concrete case, you could also display the header information in the actual tableView.tableHeaderView. This scrolls like an ordinary cell, but isn't a cell. It would probably also make sense from a UI perspective, because it is something different than your ordinary cell content.