I have requirement and I am not configuring out what to do for displaying first 10 contacts in the first page(table view), after 10th contact, it should display remaining 10 contact in second page(table view).
It should also display toolbar as soon 11th contact is added in table view showing the "Next" and "Previous" .
Please let me know from where I should start?
Any tutorial or reference is appriciated
Pagination is nothing else than going through pages, just like you described.
If you want to use pagination show only as many entries as will fit on the screen, so the user always sees everything and doesn't need to scroll. You could still use a tableView and disable the scrolling though I still think a tableView is a very good way to show large amounts of data.
To navigate through your data some of these three approaches may give you an idea:
Buttons in a UIToolbar to go forth and back
UISegmentedControl in a UIToolbar
UIPageControl at the bottom, whole content is in a UIScrollView, user can swipe to go through pages
Related
I have put together a set of pages using UIPageViewController. The first screen is an initial screen, and the user should swipe to the next page after being greeted. The following three screens are tabbed views.
Once the first of these screens loads, I no longer need the ability to swipe from view to view. Instead, I have a set of tabs at the top of the screen to navigate between each page. Upon clicking a tab, the screen scrolls to the next page.
basic workflow diagram
Two of the three pages have dragging abilities. On the first, the user will drag small UIImageViews to a destination. On the second, the user will interact with a chart using touch.
My questions are:
Is there a way to keep UIPageViewController from moving given a particular index?
I like the way the tab view scrolls from page to page, just on the last three pages I don't want "side to side" movement. Only when the user clicks a button or tab at the top. Is this possible?
Would you consider this a good way to implement this sort of UI? I am still relatively new to using Swift/IOS, would UIPageViewController be the best fit for this? If not, what might be a better approach?
After a little digging I found this post:
How do I Disable the swipe gesture of UIPageViewController?
It would appear that disabling the dataSource protocol is what I needed. On the introductory page, I created a swipe behavior to load the next page.
I'm new to iOS development and am trying to build something like the screen below:
If I was doing it in Android, I can easily build the above UI in a few minutes. However, I don't know how to go about it with iOS.
I understand that the whole ViewController can be embedded in a navigation controller, which produces the title bar above. What about the bottom part though? I'm thinking of using something like a grouped UITableView but I'm not sure, since every cell will have very different contents:
A search bar, perhaps a subclassed UISearchBar, which I also don't know how to customize--the Search button at the right is required but isn't in the default UISearchBar. When the user taps on it, the UISearchBar must be translated to the navigation bar, no need to display a UITableView of suggested results. I don't know how to do that, too.
A button that, when tapped, flies in a modal from the bottom (I imagine it to be another ViewController with a grouped UITableView), to allow the user to choose from defined locations. Once selected, the modal closes and the button text is replaced with the selected location. This sounds much easier to do.
A header ("Item categories") and the list of categories, which may change in number. If the parent isn't a grouped UITableView, I think this part can be a UILabel and a non-scrolling UITableView with a height that changes depending on how many cells it has. If there are plenty table cells that don't fit given the screen's height, everything below the navigation bar can be scrolled vertically. That, I also don't know how to do.
If anyone can just guide me to what native iOS components I can use to build the above screen, and maybe a couple of tutorials to the things I just said I don't know how to do, I'd appreciate it.
You said it right .All the basic info you need is with you.
To build a searchbar like that i dont think you have to subclass it.
Bottom comprises of tableview.
Actually these Questions are seperately available in SO itself.So search seperately for your needs and you can achieve whatever you want
One basic principle : You cant achive anything by just thinking.Trying and get to it and if you have any issues look forward at it.All the issues will have an answer on the way.
Lots of components you need there.. Search Bar, UIPickerView and UITableView. I would like to give you some pointers.
1) You can refer http://www.appcoda.com/how-to-add-search-bar-uitableview/ for Search bar
2) When clicking on the Button, you can bring up a UIPickerView instead of another controller. For that you can refer http://www.techotopia.com/index.php/An_iOS_5_iPhone_UIPickerView_Example
3) You can use a normal Tableview with a single section, configure the section header to display Item categories.
You are asking too much to ask how to do every component of your UI. I will just answer a little.
Yes, a grouped table view is a good design. I am using a grouped table view for varying types of input. I have an actual table, with rows that can be added, and deleted, and contain an editable text area. Then I have three groups that only really show one piece of content each: two are sliders and one is a switch.
For choosing the location, pushing another view controller on your navigation stack would be the more typical way to handle it. You will save some effort that way, with some buttons and behaviors built in, but a modal view controller is not much harder. I'm not sure if you can make a navigation view fly in vertically, but does your app have to be frame-for-frame identical to the android version?
So I have an app on the main page is details of the current date.
The page has left and right buttons to move to previous and next dates and a table of info below. This all works.
However I want to add a swipe between the days, now doing the swipe control is easy and I have done that.
However I want to give the visual indication of a swipe.
I am not changes views , I am simply refreshing the current view.
If you look at myfitnesspal (free app) , that swipes between dates in the same way I am after.
It scrolls off (a copy?) of the screen to one side , slides in the latest version to replace it.
I am at a loss on how to achieve such a simple effect without going for multiple views which unless I am misunderstanding would be over complex.
Use a UIPageControl, here is a tutorial of how to implement one using only two views: Cocoa with Love UIPageControl sample
Both views can be identical, (instances of the same Class, created programmatically or 2 CustomView outlets on IB)
This way you only need to update the view that's going to slide in the screen.
I'm working on an app that can display a graph with some data, one every day. I'll call this "dayGraph".
I'd like to build an interface similar to the iPhone home screen, aka pageControl, with one dayGraph per page. (but i don't need the small dots!)
I tried with the standard pageControl example from Apple, and it's working, but only with a small number of pages. I need to display even 100 possible dayGraph, if the user wants, but the pageControl is going crazy when the page number exceed 50.
I know that the photo app is doing a similar thing, and it can work with many photos.
My question is: How can i do that? Is there any "Apple way" of doing it, or i should begin to make my own method for swapping the dayGraphs?
Thank you very much!
If your goal is to enable swipe-based paging, the view you want to use is a UIScrollView. Set its pagingEnabled property to YES. Then add each graph as a subview of your UIScrollView, setting the frame of each graph to position each one on its own page extending beyond the bounds of your UIScrollView to the right. Finally, update the contentSize property of your UIScrollView to encompass all of your pages.
Now the user can swipe left and right to flip between the pages of your scroll view.
Note: If you add 50+ subviews to your scrollview, it's likely that you'll run into memory problems. To avoid this, you'll probably want just keep subviews loaded for the current page, plus the adjacent pages to the right and left. Set a delegate on your UIScrollView to an object that implements scrollViewDidEndDecelerating:. In that method, remove any subviews that aren't on the current or adjacent pages, and make sure each adjacent page has its subview loaded. That way you'll never have more than 3 pages of content in memory at one time.
I'm building an app (not necessarily a twitter client) and I'm trying to figure out how developers create the buttons above and below a table view where a user presses them to either reload newer data or reload older data into a table view. Does anyone know of any tutorials out there that does this or know of an easy way?
If you want fixed buttons, you can just make your table view not use the full screen and add the buttons in the space. If you want the buttons to scroll with the table view, you can add a header or footer view to the table and put your buttons inside that.
Check the Three20 project. I believe there's a tableview there that does that.
It's actually not that hard to add inline buttons to a tableview. First you check and see if there's actually more data to show. If so, you want to add 1 to the number of rows returned from the datasource. When asked to draw that last row you return a cell that contains "Press for more" caption as well as a hidden spinner instead of the standard cell that shows your normal data.
If the user presses that last button the table view handler turns on the spinner then fires off a network event. Once the network request completes the data is processed and added to the same tableview datasource that was used to draw the first table.
Now all you have to do is tell the tableview to reload itself and the new data will show up. If you want to limit the amount of data shown you can prune out N number of items from the head of the datasource before redrawing so the memory-use stays manageable.