I was working with the grouped table view , and i wanted different controls for every row i.e switch control for 1st,radio button for 2nd ,checkbox for 3rd and so on.. how can this be implemented programmatically that is without using interface builder
thanks in advance
CharlieMezak said is right, you need to create in UIControls directly in cellForRowAtIndexPath , and add as subviews to contentView of the cell
For reference see the link below
http://www.e-string.com/content/custom-uitableviewcells-interface-builder
the link specifies the code to create cells programmatically as well as using IB.
Table View Programming Guide for iOS
Read the programing guide, and remember to use different CellIdentifier for each type of cell.
This is a pretty vague question.
Obviously you need to provide the cells to the tableview in its cellForRowAtIndexPath delegate/datasource method. So, either in that method or during the initialization of your view controller, build the UITableViewCell instances that you need, adding the various controls that you want to them as subviews and connecting the controls to your view controller so you can detect when they have been changed. Then just return the appropriate cell in the cellForRowAtIndexPath method.
Personally, I think it's a lot easier to use IB in cases like this. Just create an IBOutlet instance variable for each custom cell you want, and return the right cell in cellForRowAtIndexPath.
Related
So I don't know what the best way to follow MVC is. Similar to the address books app, I want to have a UITableVeiewcell that has the ability to edit notes. I figured I would do that with a UITextView in a UITableViewCell subclass. My subclass has just that as a property, and a label that says "notes". I can see a few use cases that I need to consider,
1) when they are done editing and click outside or hit return.
2) when the text goes beyond the size of the cell I need to resize the cell.
Because my UITextView is in IB, is there a good way to define the delegate methods for the UITextView since my UITableView is in another ViewController subclass? Like how do I pass that information back?
Or, is it better to create my UITableViewCell subclass in code since it's just a couple of items so all my delegate and resizing code is done in the view controller class?
Thanks!
After text field editing was finished, you can store it's value in some dictionary in your controller. You can use cell's indexPath as key in this dictionary. In such way you will not lose your data with dequeue cells.
To resize cell you must call reloadData method and change rowHeight property of entire tableView or implement tableView:heightForRowAtIndexPath: delegate method to set needed row height to current cell.
I haven't use UIKit since iOS 3.1, so the second part of my answer can be out of date, but I hope it will help you =)
When attempting to create a form with UITextFields, it appears that cellForRowAtIndexPath: gets called every time a user scrolls up and down the tableView. When this happens, a new UITextField is created, and the old UITextFields are no longer visible. Is there a way for the cellForRowAtIndexPath: method to be called for just one iteration?
Check the docs for UITableViewCell, especially A Closer Look at Table-View Cells and the section about static cell content.
Perhaps you might consider a simple UIScrollView rather than a UITableView? It's difficult to tell what you're trying to accomplish here. Perhaps add a bit more detail to your question.
Create UITableViewCell nibs in Interface Builder with UITextFields and link all of the objects with the viewController class.
I have a TableView with one cell and I want to insert in this cell a lot of text so I think I'll need to use a ScrollView for scroll the text.
How can I insert? Is correct this method?
This is a help in the application, is correct use this modality?
Sorry but I'm a beginner and I don't have an iPhone or iPod, thanks!
While I concur with 7KV7's original comment, it doesn't look like there is need of a tableview in this scenario...
Just in case someone else happens upon this looking for an answer to the "Scrollview in a Tableview" question here are few clarifying points for the above comments.
The technical problem with having a tableview and a scrollview together on the same view is that UITableView is already a descendent of UIScrollView and if you attempt to handle both in the same view then you will end up with quite a mess with conflicting delegate messages.
As suggested by iPhonePgr, you can create a custom UITableViewCell. The first thought would be to let the UITableViewCell act as the delegate for it's own scroll view. The problem here is that the cell and it's contents could be discarded or reused at any moment as part of tableview's dequeue functionality.
So some ground rules to guide your implementation:
Whatever your solution, you're probably going to end up making a custom controller class, possibly derived from NSObject and implementing UIScrollViewDelegate.
The custom controller object acts as the mediator between the model object and the cell.
You will probably have an array or array-of-arrays that mirrors the model hierarchy driving the UITableView structure.
Because the cells can be discarded at any time you will have restore the scroll view state on cell initialization and preserve the state has part of handling your delegate actions or through a custom UITableViewCell implementing prepareForReuse.
Hopefully these points will come in useful to anyone who runs across this entry.
You need to create a custom cell by inheriting UITableViewCell and then add UIScrollView in the customcell. Then Use that cell in the Table view.
you can put your text in UITextView and add it as a subview in your UITableViewCell,because
UITextView is inherited from UIScrollView,
No need to add UIScrollView if you use UITextView
When you create UITableView you implement a number of delegate method which you can see by pressing the window key and then double clicking the UITableView delegate . In one of the methods you can set the cell height as per your requirement. By doing this your cell height can vary.
- (CGFloat)tableView:(UITableView *)resultTableView heightForRowAtIndexPath:(NSIndexPath *)indexPath
{
return 150;
}
As your table has a defined height, when the text in cell will be too much to contain into a scrollview will be automatically inserted.
At the moment, I have a settings view in my iPhone app built with Interface builder, it consists of a background image, some text fields, labels and buttons. Because this looks bad, I want to convert the settings view to an UITableView with custom UITableViewCells.
I already tried adding some cells into my settings view's XIB and returning them in the cellForRowAtIndexPath method (with [return myCell];), as written in Apple's tutorial, but this was not working for me - my whole TableView looked strange and it only showed the first cell correctly.
Is it possible to design these custom cells in Interface Builder? Do I have to create an empty XIB for them or can I put them in my view's XIB? And how do I insert them into my TableView?
Thanks in advance,
Yassin
You can absolutely add custom table cells that you built in interface builder. This includes both static cells and Dynamic cells. However without you providing more information the best I can say is "double check the docs and try again." I can only say that it works and it's rather straightforward so it's hard to say what you may have missed. It might be more helpful if you post what you have for the tableView:cellForRowAtIndexPath method.
Since you say you just have some text fields, I would recommend looking at the technique for static row content section of the Table View Programming guide. You probably would want to have each field of your form correspond to a row in a Segmented Table View, it'll make everything look nicer.
I converted my old UITableViewCell from being programmatically created to using Interface Builder and a Xib. When implemented in code and in edit mode, I moved some of the labels in the cell to make room for the delete button. How do I change the layout of the cell in edit mode when implemented as a Xib? Preferably animated. Links or tutorials are certainly welcome!
If it matters, this is for a 3.0 SDK app.
You need to get a reference to the subviews you would like to move. Two ways to do this are:
Tag the views in IB
Use IBOutlets
If you tag the subview you would like to move, you can find it by:
[cell.contentView viewWithTag:kMyTag];
If you choose to use IBOutlets, you should consider creating Cell Controllers for each cell.
A good tutorial on this can be found here:
http://bill.dudney.net/roller/objc/entry/uitableview_from_a_nib_file
Also consider moving your cell logic into the cell controllers and out of the table view controller as mentioned in this tutorial:
http://cocoawithlove.com/2008/12/heterogeneous-cells-in.html