I need to implement vertical and horizontal tables with overlapped cells and custom scrolling.
It should looks like this:
Table can have many cells (about 1000), so recycling is need too.
Do you know any third party components or may be standart that can helps me. Or i need to write my custom "TableView"?
What you're describing would be very difficult in a standard UITableView, since it requires controlling the layout of individual cells. The good news is that Apple does provide an API for specifying the the layout of reusable cells in whatever manner you want; the only wrinkle being that it is for UICollectionViews, not UITableViews. If you don't need to support older versions of iOS, I would encourage you to watch the WWDC sessions on collection views, and then check out Schwa's Coverflow project for a solid implementation of a similar style layout.
Related
This implementation is similar to a normal UITableView, but with one caveat that drasticly changes the complexity of the work in my opinion. The ask is that all section headers will be visible at all times, no matter how long the table is.
Explaining the exact UX is a little difficult, but if you follow the link below there is an interactive example of exactly what I would like to accomplish in native iOS:
http://slinky.iclanzan.com/
It is my understanding that utilizing the normal UITableView will not be enough to satisfy this case. Aside from using a mashup of multiple TableViews, ScrollViews, and/or CollectionViews, I was wondering if anyone knew of some existing libraries that already perform this implementation?
Or if anyone has any high level suggestions on how to accomplish this with custom code that would be appreciated as well (Not looking for someone to write this all out for me, just an idea would suffice).
Found a solution after working with some teammates on a POC. I'll at a high level explain the implementation.
We know that a tableview's header and footer will remain static while we scroll. Since we want our sections headers to "stick" to the bottom and top of the tableview, we mimic this by dynamically adding any section header views that would have been hidden to the tableview's own header or footer.
We do this by maintaining an array of section header views, and calculating in layoutSubviews when we need to change the tableview's header and footer.
I would like to make a table-view with expanding ability.
When you press a row, the row should expand to show options like delete, copy and so on.
I have found an example for iOS, but I didn't get it running on Mac OS X, because NSTableView and UITableView are very different.
http://www.cocoacontrols.com/platforms/ios/controls/kofiles
Has anyone another template?
Or maybe even get this example running on Mac OS X?
I don't have code to hand you but you can use a view-based NSTableView. Your prototype view can resize itself to include controls if it's selected. All that's a bit complex to condense into a reasonably brief answer but if you use a view-based table view and treat the prototype view like any other that would grow and show extra controls, then wire this behavior to the selection state, it should work.
Note: you will have to write some code for the expansion portion, to handle resizing it, showing the controls, and notifying the table view that one of its rows changed height. Lots of documentation and examples exist out there for each individual component of your problem. Post more specific questions as you run into roadblocks.
I know there are plenty of Grid Views out there for iOS and Objective-c, but I couldn't find one that fits me. Currently I use a grid view called UIGridView. It included only two files and was very simple to implement. However it cannot have more cells than it can fit on the screen. I want a dynamic grid view where I can have a UIPageControl to have multiple pages with cells. I like the UITableView but for this project it would be more efficient to have a grid view.
I currently use this grid view: http://www.chupamobile.com/products/details/380/Interactive+Grid+View/
Is there a simple grid view with page control? Or can I put my current grid view in in a UIPageControl?
Did you try CHGridView at https://github.com/camh/CHGridView ?
I settled with the MMGridView. It has horizontal page control scrolling. I just modified the cells to my liking. You can find the git source here: https://github.com/provideal/MMGridView
I am currently using AQGridView so surely i recommend that as it is the least buggy and its functions are very similar to UITableView.
Also that If you are trying to do this without XIB it will be little bit difficult for you to handle it but you can create a view controller with Xib file to Create the interface of your choice. Here is the Video of how it can be done in the best possible way by Evadne Wu. And here is the Sample Project
Now for the Paging Control
in AQGridView you just need to set Paging Enabled and it will automatically do the rest. Hope that helps.
So I wrote a custom subclass of UIScrollView that basically displays rectangles in a 2-column grid, but while the width of each is fixed to half the width of the iPhone/iPad screen, the height varies, depending on the dimensions of the picture within it. All's well and good now, but I can imagine that after adding lots of these subviews to my UIScrollView subclass, things are going to lag. So I'm trying to implement lazy loading analogous to UITableView's dequeueing reusable cell method.
I've looked at a handful of other questions on SO, but they all involve paging based on full-screen photos, including Apple's WWDDC PhotoScroller example.
Anyone have any insight? Thanks.
You basically want to keep track of the views that are scrolled off screen and reuse them.
You might want to check out ATArrayView. It implements a recycling mechanism like what the UITableView has except with a UIScrollView with an arbitrary number of rows and columns?
I've used it as the basis for my own image scrolling code and is pretty good. It's delegate methods follow the spirit of UITableView data source and delegate protocols.
Good luck
Tim
I know the title is a little confusing, but the best way to describe what I'm after is by running the Weather metro app on the Consumer Preview; as you scroll horizontally, you'll note that the section headings kind of move around and stay on top of the relevant content, and then fade out as you cross over into a new section. (The main background for the first section also kind of does this)
My question is, how would I go about replicating this behavior in a WinRT app of my own? Are there any existing controls I can leverage or would I have to essentially rewrite it all?
This looks just like a ScrollViewer - you would handle the ViewChanged event and depending on the scroll offset - change the opacity of overlaid static TextBlocks and completely hide the ones that scroll once you cross specific tresholds. I don't think there is anything like that that does it, but I can build it.