I am trying to make an bunch of links on the right side of the uitableview to jump to the various sections in the tableview without having a searchbar at the top.
thanks
Sure can. Just implement a couple of methods in your table view’s data source: -sectionIndexTitlesForTableView:, which should return an array of titles, and -tableView:sectionForSectionIndexTitle:atIndex:, which returns the corresponding section once the user clicks on a section title.
Related
I am building an app that requires a tableview control so that users can select multiple rows and act upon them in some way. I find it easy to load my data and display it using the UITableViewController but it seems when I do it this way I am unable to place any other controls on the page, such as a toolbar to give the user some actions to perform on the selected rows. I can place a toolbar control on the form in the storyboard, but it doesn't render in the emulator.
Using a UIViewController and placing a TableView on it seems to come with its own set of confusing challenges (that will make total sense once I conquer them).
Is there any advice for a smooth way of getting a table view with toolbar controls? Thanks!
don't use a TableViewController. Use a Standard ViewController, then add a UITableView to it, and adjust the size. This way you will be able to do whatever else you want on that view without limiting yourself to the tableView only functionality.
When you do this make sure you add the datasource and delegate to the connected table. Then add cellForRowAtIndex, number of sections, number of rows, and whatever other delegate methods you need for your table.
Good luck
Is there any advice for a smooth way of getting a table view with toolbar controls?
Yes there are few ways to accomplish this, one way would be adding a footerview to your tableviewcontroller check these
http://developer.apple.com/
UIButtons on tableFooterView not responding to events
Easier way to add this is using storyboard.
Just drag and drop a view in to your tableviewcontroller, then you can adjust the views size and put anything from objects menu to inside of the view.
Now the problem with that is view will not be stable position at the bottom of the page like a tabbar. Lets say you have only 1 row in your tableview, footer view will go up just below that 1 row, lets say you have hundreds of items in your tableview toolbar will be at the bottom of the rows.
The other solutions for your problem would be either create a custom view and adding it to current view or window (this is little bit adbance),but if you want this just google it.
Or just as you said, create a viewcontroller and put a uitableview inside. Dont forget to add <UITableViewDelegate,UITableViewDataSource> to your .h file and then you can call UItableview delegate methods.\
Good Luck.
I want to make a grouped TableView similar to the Apple iPhone contacts application.
I need a lot of standard fields which can be edited, but I would only like them editable once the edit button in the navbar is clicked.
This has been bothering me forever that I could not find a good tutorial.
Thanks in advance.
This is not easy. I just built the same thing because there is nothing available from Apple. I ended up creating a single table cell with a UILabel and a UIView on it. The UILabel is for when the cell is in read mode, and the UIView is for editing. The UIView contains a number of UITextFields. These are the individual fields. I also had to implement drawing code to draw the lines between the fields. Then I had to come up with the code to pass in an address object, load it into the fields, format the text for the label, switch in and out of editing mode (with animation), and finally handling saving of changes and canceling. As yet it doesn't handle tapping the address type to select that from a popup list, but I have most of the code in place for the rest.
This could have been done using individual table view cells for each field. But then you can't select the whole thing the way it does in contacts and adding and deleting addresses becomes trickier.
I have a section where I would like to customize the left area of a section a TableView - a bit like viewForHeaderInSection.
I have thought at using a cell for the section instead, but it would be a lot of nitty-gritty.
If I understand your question correctly, you want to customise the left-hand-side of some, or every cell in a UITableView? Then you need to make create your own custom table view cells. I normally make these cells in Interface Builder; this post helped me out. See also the Customizing Cells section of Apple's Table View Programming Guide for iOS.
I read your question to mean that there is one custom element to the left of a bunch of cells. The only way I know of offhand is to use a cell as you describe and then have a left view and a tableview inside of it.
I have a multi-section table view, and each section has a button in its footer that should add a new item to that section. The number of sections is not pre-determined or limited, so I can't make a separate selector for each section like "addItemToSection1", etc.
I also can't just store the section index in the button's "tag" property since the table also supports adding or removing arbitrary sections, which changes the section indexes for all following sections.
The only thing I can think of is to maintain my own, separate map from buttons to sections or something similar, which is a lot more fiddly gruntwork than I'd like. Is there any way to determine directly what section a given header or footer is in?
Re: gerry3's answer above (Added as an "answer" because SO won't allow me to comment on the above answer for some reason.)
Thanks for the info. It seems there is no way to avoid having to maintain a separate data structure to map sections to and/or from the underlying model, since I have to have the section index so I can call things like insertRowsAtIndexPaths:withRowAnimation:, and since the section indexes can change due to adding or removing sections. How annoying!
I have seen a few methods for associating a button to its tableview cell or, more importantly, the row or data associated with that cell. You should be able to do something similar for tableview sections.
Use the button's tag. In the button's action selector, use the button's tag to get the data. It sounds like you have already ruled this out.
Use a custom view for the section which has a property for its associated data and the button as a subview. In the button's action selector, get the specific instance of your custom view as your button's parent view. Then, get the data from the custom view's property.
Put the button in an array of buttons and the data in an array of data at the same index as the corresponding button. In the button's action selector, find the index of the button in the button array and grab the data from the data array using that index.
Is there anything currently in the SDK that allows for re-ordering of tableView sections? As in, move the entire section below or above an adjacent section? This is plausible with individual UITableViewCells. Haven't seen it done for sections though.
Maybe not ideal but fairly simple so worth considering:
Add Up/Down buttons to your section headers. Down on the first, Up on the last and Up and Down on all the others. Then respond to the button presses by programmatically re-ordering the table. Up moves the section up one and Down moves the section down one.
Martin
There's no built-in touch-responsive API for moving table view sections - you'd have to do it programmatically then send a [tableView reloadData] message or similar.
It is concievable, though, that you create a table view where each UITableViewCell's view is itself a UITableView containing a section of your data, so that the cells in the "master" table are draggable as UITableViewCells. This would let you reorder "sections" in your table, but they wouldn't be sections anymore - they'd be separate tables, each with a single section.
Maybe as an alternative idea, reloadData on the table to only show the sections as a kind of "collapsed all" view on your table (maybe it is possible to even animate this?) which then has one section, containing all sections as row elements. The only extra required would then be a button that will set your table to this state.
I tried to move rows from one section to another, while updating the datasource of course. But this seemed to be mission impossible. Empty cells in between, wrong contents in sections, wrong ordering of sections were the only results I got.