Essentially I have a list of items, I want to have some type of checkbox on the end where they can select multiple items. I also need them to be able to just select one of the rows and have it open up a detail view. Is this possible? Or do I need to do something like they do with the messages where you choose the edit button to select them and show an additional button to take action on the selected?
Set your cell's UITableViewAccessoryType property to UITableViewCellAccessoryCheckmark to make a check mark show up on a certain cell, you'll have to keep track of which cell's are checked on your own though, since this property doesn't track.
So have an array or something that represents which cells ar checked and which aren't, then in your didSelectRowAtIndexPath: method you can modify the data in the array to reflect the cell's selected state, and call [tableView reloadData] so the checkmark shows up right away.
I found the answer, there's an option to allow multiple selections on edit mode.
Related
i have a tableview with form fields, and there is a row that use segue to call an UICollectionView, everything is works except that i can't keep the selected cells (the visual effect that i show when the cell is selected) after go back to the tableview.
I mean, i selected my UICollectionView cells, after that i go back to the form, but if i need to again to my UICollectionView Cells, to deselect o select more cells before submit the data, once the UICollectionView appear my previous selection are there (i print the array, and i see the values) but i cant see the effect that i did for selected cells.
How i can keep the effect for selected cells if I'm going back to select again o deselect cells?
One thing to realize is that this is not going to happen by itself. When you segue back to the table view and the form fields, the UICollectionView is completely destroyed. The next time you show the collection view, it is a new and different collection view.
So, if you want to maintain a knowledge of what the selection was in the collection view, you are going to have to maintain it yourself, deliberately, storing it somewhere when you know that the collection view is being destroyed.
That way, the next time you show your collection view, even though that will be a completely new and different collection view, you can pass the knowledge of what the selection was to that collection view as you create and show it. The user will have the illusion of "returning" to the collection view, in the same state, but in fact you will have saved and restored its state.
It is then just a matter of reflecting the selected state in the collection view's display of its items. To do that, you need to configure your model so that when cellForItemAtIndexPath: is called, each cell looks selected if that item is supposed to be selected.
Every time you use segue to call an UICollectionView a new instance of UICollectionView is created and hence states of selected cells doesn't get restored.
I believe u must have taken an array of index paths of selected indexes to show the visual changes in the cell.
Make your tableView class as delegate of UICollectionView. Using its delegate methods return the selected index array to tableView class .And before pushing to UICollectionView send the same array of index paths back to the UICollectionView. Hope it helps.. Happy Coding.. :)
I don't want to show check marks when user select multiple rows in table view. I also want bit smaller selection indicator view with different color.
I am enabling this selection style by setting editing mode
[self.tableView setEditing:YES animated:YES];
Is there any way to set custom view/style for this type of selection?
I am very sure that there is no api allowing you to specify a custom view for any of the editing controls that appear on the left (the delete control, insertion control, or either version of the selection control).
But you can achieve this another way. At a high level it would be like this:
Don't set editing on the table view.
Do set allowsMultipleSelection instead of allowsMultipleSelectionWhenEditing.
If you are using the built-in Edit button change it to your own Edit button with an action that sets a flag like isInCustomEditMode. The action will also need to toggle between the Edit and Cancel button.
In cellForRowAtIndexPath: check that flag. If set then display the cell with your own view control.
In the didSelect... and didDeselect... methods set your custom view to match the state of the cell.
If your designer allows it you could also consider not displaying the selection control at all. I would argue that the highlighting in the cell when it is selected is indication enough to the user that the cell is indeed selected.
I thing you have below two lines in your code,Remove these below two lines
table.allowsMultipleSelectionDuringEditing = YES;
[table setEditing:YES animated:NO];
Instead,You want Multiple selection
table.allowsMultipleSelection = YES;
Its not displaying the selection control.
I need to be able to disable the keypad in a textfield, and instead when the user taps on it to start editing, a new table view will appear presenting a list of possible strings with which the textfield should be filled.
Anyone has any suggestions on how to achieve this?
Thanks in advance
p.s. I tried already but this functionality cannot be nicely implemented with a picker in my case, as there are too many options to choose from and (more importantly) each one of them is a rather long string and cannot appear entirely in a picker.
I believe you just need a regular cell that, when tapped, pushes a new detail UITableViewController with all the options to choose from. Once an option is chosen, set the cell's textLabel to whatever option have been selected.
If you'd like to go for an easier path, then you should also probably check the free Sensible TableView framework, as it has these kinds of cells out of the box (called selection cells). You just pass on your strings array to the selection cell and it will automatically display the detail view, and even assign the selected option to one of your object's properties if you wish. Should save you some good amount of manual work. Good luck!
I'm trying to create a UITableview that contains STATES and CITIES. To start with, I'd like the table to display only the STATES, with each value having a downward facing disclosure arrow on the right hand side of the cell which lets the user know it has values underneath it. If the user clicks the arrow, the table would expand to show the CITIES associated with the selected STATE. The user could then either select a CITY, or click on a upward facing disclosure arrow which would then "hide" the CITIES.
I've downloaded and reviewed Apples "Table View Animations and Gestures" example.
I was hoping someone might know a simpler way of accomplishing what I'm asking for.
http://developer.apple.com/library/ios/#samplecode/TableViewUpdates/Introduction/Intro.html
Good Job on explaining exactly what you want to do. This is how I would tackle this, I figure it would be easier to explain it without giving you meaningless code and answer any coding concerns you might have after.
I would set up the table view data source to be an array of arrays. The idea would be that every index in the array would represent a state and therefore contain a number of cities, hence ever index contains an array (array of cities). The parent array(of states) will be empty at the beginning, but the arrays(of cities) that will later fill it would be populated with the appropriate cities.
I would then set up the table view to contain sections (I a tempted to put code here, but read along). The sections would represent the cities. You can then fill out the table view with sections using (NSString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section delegate. On the first run you can fill the actual table with one cell per section (maybe with the word "expand" or "more" and your down arrow). When the user touches that cell you can use the didselectrowatindexpath to know which section was touched (the indexpath object contains the section), now that you know which section it is, just modify the data source by adding the array of cities for that section of the array of arrays (parent array) and update the tableview.
This essentially gives your tableview an according style and feel. It is very easy to implement but requires a little bit of code. I have done this and am willing to provide the code you might need, the trickiest part would be to update the tableview in the correct way.
EDIT CODE:
I did a simple example following above explanation. The code is on Github , feel free to ask any questions about it.
I think a better way to represent this information would be to have a UITableView containing the states with each state showing a tiny arrow pointing to the right. Then, when a user clicks on the state, load the next UITableView that shows all of the cities in that particular state. Using a UIViewController for pushing the City list will allow users to easily return to the States list.
This approach will make much more sense to iOS Users, because this is how they expect Tables to work.
There are many tutorials explaining how to use UITableView. Here is a link to a site with many UITableView tutorials. The tutorial I linked to explains pushing a UIViewController on to the stack so that there is a simple back button back to the State list.
Normally such thing is done by seguing to another view and showing more details about cell.
What you want you could achieve by actually making custom UITableViewCell which would contain UIButton with arrow image and UITableView. In case button is clicked for the first time you could reload your cell and create inner UITableView which could show cities. Another click would simply reload cell again and not return inner UITableView at all. You also need to keep selected state somewhere because you may have to reload previous cell and hide inner table in case arrow in other cell is clicked.
So I stumbled upon a rather inconvenient 'feature' of the iOS SDK last night, and I wanted to share my finding and solution with you guys. Also to get input, should there be a better solution.
Scenario
I had a table view set up with two sections, on for favorite items another for all other items. Tapping a row in the table view would toggle whether the item is marked as favorite; tapping a row in the favorite items section, would remove it from favorites, while tapping a row in the all other items section would add this item to the favorites.
When the state of favorite is toggled, I use moveRowAtIndexPath:toIndexPath: to do a nice little animation and move the row from favorites section to all others section.
Problem
So, the problem occured because, not only should the user be able to toggle favorite state, also all of the items in the favorites section should be rearrangeable. Thus I wanted to display a rearrange control in each row of the favorite items section.
However, a cell isn't redrawn when invoking moveRowAtIndexPath:toIndexPath: and fromIndexPath and toIndexPath are both in the visible area. This means that the rearrange control is not displayed when adding a new row to the favorite items section.
Solution
After looking through page-after-page in the documentation, thread on StackOverflow and trying out various stuff, I finally found a solution.
Immediately after calling moveRowAtIndexPath:toIndexPath: I also invoke the following lines:
[cell setEditing:NO]
[cell setEditing:YES]
Which would cause that one cell to understand that it's restriction for rearrangement has changed, thus show/hide the rearrange control appropriately.
I find this solution to be very hacky, so I'd be happy to hear about better solutions. But at least, a solution is out here now, for other people to enjoy.