I'm trying to make an UITableViewCell that shows the deleteConfirmationButton (while in edit mode) just like happens when I click at the editing controls but in my case I want it when the user clicks over the UITableCell.
I've already set the property AllowsSelectionDuringEditing to YES and I can delete the rows, I just want the deleteConfirmationButton to avoid any accident.
Any tips on how to do it?
Thanks!!
To do this you would probably use the commitEditingStyleForRowAtIndexPath function, which is called when an object is selected or deleted during editing.
- (BOOL)tableView:(UITableView *)tableView
canEditRowAtIndexPath:(NSIndexPath *)indexPath
{
return YES;
}
And then for the confirmation do something like this:
- (void)tableView:(UITableView *)tableView
commitEditingStyle:(UITableViewCellEditingStyle)editingStyle
forRowAtIndexPath:(NSIndexPath *)indexPath
{
//make a UIAlert and display confirmation, if yes then run the following code, if no then break
// remove the object
[myItems removeObjectAtIndex:indexPath.row];
// refresh the table view to display your new data
[tableView reloadData];
}
Related
I am new in iOS and I am facing problem regarding to select one cell and on click of them change image. But when I click on other cell its image also got change.
As in image I can select all Full,Partial and None.I want to select only one at a time like radio button.
My code is like this
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
FPNTableViewCell *cell = (FPNTableViewCell *)[tableView cellForRowAtIndexPath:indexPath];
cell.circleimg.image=[UIImage imageNamed:#"CircleClick.png"];
}
I am using Custom tableview. Thanks in Advance!
Initialise an Int (top of the controller Eg: int i=0;)
tableview didselect method assign the selected index to that int
EG: i = indexpath.row
Cellforrowindex method check the i with indexpath. Based on that you can use the image
You can use tableview method
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
}
for selecting.
-(void) tableView:(UITableView *)tableView didDeselectRowAtIndexPath:
(NSIndexPath *)indexPath {
}
for unselect.
This might be a very stupid question, but I have very little knowledge about Xcode, Objective-C and iOS development in general.
What I have is a UITableViewController, with a number of cells. I've gotten the 'add' and delete (swipe to delete) functions to work, but I cannot figure out how to connect the 'edit' button to a function that will trigger the editing mode of that TableView, so I can rearrange the order of the elements.
I have un-commented these functions:
- (BOOL)tableView:(UITableView *)tableView canMoveRowAtIndexPath:(NSIndexPath *)indexPath
{
// Return NO if you do not want the item to be re-orderable.
return YES;
}
- (void)tableView:(UITableView *)tableView moveRowAtIndexPath:(NSIndexPath *)fromIndexPath toIndexPath:(NSIndexPath *)toIndexPath
{
XYZToDoItem *itemToMove = [self.toDoItems objectAtIndex:fromIndexPath.row];
[self.toDoItems removeObjectAtIndex:fromIndexPath.row];
[self.toDoItems insertObject:itemToMove atIndex:toIndexPath.row];
[self.tableView reloadData];
}
As you can see I have also made a few additions to the moveRowAtIndexPath method following the documentation.
In addition there are these functions;
- (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath
{
if (editingStyle == UITableViewCellEditingStyleDelete) {
// Delete the row from the data source
[self.toDoItems removeObjectAtIndex:indexPath.row];
[self.tableView reloadData];
}
}
- (BOOL)tableView:(UITableView *)tableView canEditRowAtIndexPath:(NSIndexPath *)indexPath
{
// Return NO if you do not want the specified item to be editable.
return YES;
}
As previously stated the "swipe to delete" function works, I don't know how, but I simply just uncommented these last two methods and edited one a bit to fit my code.
To be more specific, what I'm asking is how can I link the 'edit' button I have in my Navigation Controller to trigger the edit mode for the TableView, thereby showing the three lines (?) known from the TableViews editing mode (and letting me drag the elements to an order I want).
Thanks in advance for all your help! :)
If this is a UITableViewController you have two options. Either use the built-in edit button, which will give you the automatic Edit/Done button change. Use self.editButtonItem in your navigation bar:
- (void)viewDidLoad {
[super viewDidLoad];
self.navigationItem.rightBarButtonItem = self.editButtonItem;
}
Or you could use setEditing:animated to change editing state of the tableViewController:
// self is a UITableViewController
[self setEditing:YES animated:YES];
If your viewController is not a subclass of UITableViewController you can set the editing mode of the tableView:
[self.tableView setEditing:YES animated:YES];
If you have a UITableViewController you should use the first way because it is most convenient.
From the UITableViewCell showsReorderControl docs:
For the reordering control to appear, you must not only set this property but implement the UITableViewDataSource method tableView:moveRowAtIndexPath:toIndexPath:. In addition, if the data source implements tableView:canMoveRowAtIndexPath: to return NO, the reordering control does not appear in that designated row.
I've got the both in my tableviewController :
- (BOOL)tableView:(UITableView *)tableView canMoveRowAtIndexPath:(NSIndexPath *)indexPath {
return YES;
}
- (void)tableView:(UITableView *)tableView moveRowAtIndexPath:(NSIndexPath *)fromIndexPath toIndexPath:(NSIndexPath *)toIndexPath {
NSLog(#"move from:%d to:%d", fromIndexPath.row, toIndexPath.row);
//just for test
}
My cell properties including re-order controls :
And yet I can't see the re-order control, what am I missing?
Have you put your UITableView into editing mode via
[tableView setEditing:YES animated:YES];
?
The first method you posted is needless, by the way, as that is the default behavior.
I think you need to actually get into edit mode for the table. Either try it in code when your view appears or create a button that will do it.
[tableView setEditing:YES animated:YES];
I have a table, and I noticed that when I do the "swipe to delete", the red button is animated only the first time, the return (if I do another swipe) disappears without animation. These are the methods I use for this step:
- (UITableViewCellEditingStyle)tableView:(UITableView *)tableView
editingStyleForRowAtIndexPath:(NSIndexPath *)indexPath {
return UITableViewCellEditingStyleDelete;
}
- (void)tableView:(UITableView *)tableView
commitEditingStyle:(UITableViewCellEditingStyle)editingStyle
forRowAtIndexPath:(NSIndexPath *)indexPath {
...
}
- (void)tableView:(UITableView *)tableView
didEndEditingRowAtIndexPath:(NSIndexPath *)indexPath {
[tableView reloadData];
}
I forgot something to animate the return?
Thanks a lot!
Yeah, leave out the [tableView reloadData];. You only need to reload the table in -tableView:commitEditingStyle:etc:, and arguably not even then—it’s better to use the UITableView method -deleteRowsAtIndexPaths:withRowAnimation:. Reloading it is unnecessary and is why your delete button is disappearing instead of animating out.
I add a cell to the end of a section when in editing mode and I give it UITableViewCellEditingStyleInsert. how do I set what function that button calls?
Use this method of UITableView:
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
if(indexPath.row == editStyleRowInd){
//any actions here
}
}
Where editStyleRowInd index of last row in the table