I have an edit button that when pressed puts the entire table into edit mode: tableView.editing=YES;
I want every cell to be in edit mode except for the last cell, which I want to remain in non-edit mode, always. Is there any way to do this?
Check it out!
- (BOOL)tableView:(UITableView *)tableView canEditRowAtIndexPath:(NSIndexPath *)indexPath
{
// this logic might work for you, or it mightn't if you have more than one section
return [tableView numberOfRowsInSection:indexPath.section] != (indexPath.row + 1)];
}
Related
I've been trying to delete particular rows in UITableView, using below delegate method
tableView commitEditingStyle:editingStyle forRowAtIndexPath:
My intension is to not to show the "Delete" button for particular cells only.
please any one can help me how to solve this.
Use following Datasource method of UITableView
- (BOOL)tableView:(UITableView *)tableView canEditRowAtIndexPath:(NSIndexPath *)indexPath
{
// Return NO if you do not want the apply specified item to be editable.
if("Your Condition") // such like indexPath.row == 1,... or whatever.
return YES;
else
return NO;
}
In short return YES on specific row/cell which you want to edit otherwise return NO;
As usual, when a tableviewcell is touched, it will be selected. But now i need one cell in my tableview never be selected.how could i forbid a tableviewcell to be selected?
After modifying didSelectRowForIndexPath: method. It works now. Thx ALl:)
Once the cell (need to be forbidden) is selected i just use the selectRowAtIndexPath method to select the former selected cell to be selected again.
The correct way is to use tableView:willSelectRowAtIndexPath:.
Unlike all the other answers this will work with segues too ;-)
- (NSIndexPath *)tableView:(UITableView *)tableView willSelectRowAtIndexPath:(NSIndexPath *)indexPath {
if (indexPath should not be selected) {
// if another indexPath should be selected instead return this indexPath
return nil;
}
return indexPath;
}
In your didSelectRowForIndexPath: method, you can check if the cell meets your quality standards and accordingly, show a UIAlertView or go ahead if it meets the requirements
You can disable the user Interaction for that very cell or set the selection Style None for that cell. Hope that helps!
In your -(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath method add the following line to the cell you want to be not selectable:
cell.selectionStyle = UITableViewCellSelectionStyleNone;
Hope it helps
EDIT
And in your -(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath method add the following at the beginning:
if (indexPath == indexPathOfTheCellThatShouldntBeSelected) return;
In my app I need to delete multiple rows in a table, edit the table and get a check box beside the table. When checked then the table cells are deleted. It is like the iPhone message app. How can I do this, please help me.
If I understand your question correctly, you essentially want to mark UITableViewCells in some way (a checkmark); then, when the user taps a master "Delete" button, all marked UITableViewCells are deleted from the UITableView along with their corresponding data source objects.
To implement the checkmark portion, you might consider toggling between UITableViewCellAccessoryCheckmark and UITableViewCellAccessoryNone for the UITableViewCell's accessory property. Handle touches in the following UITableViewController delegate method:
- (void)tableView:(UITableView *)tableView
didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
UITableViewCell *c = [tableView cellForRowAtIndexPath:indexPath];
if (c.accessoryType == UITableViewCellAccessoryCheckmark) {
[c setAccessoryType:UITableViewCellAccessoryNone];
}
//else do the opposite
}
You might also look at this post regarding custom UITableViewCells if you're wanting a more complex checkmark.
You can set up a master "Delete" button two ways:
The IB approach
The programmatic approach
In either case, eventually a method must be called when the master "Delete" button is pressed. That method just needs to loop through the UITableViewCells in the UITableView and determined which ones are marked. If marked, delete them. Assuming just one section:
NSMutableArray *cellIndicesToBeDeleted = [[NSMutableArray alloc] init];
for (int i = 0; i < [tableView numberOfRowsInSection:0]; i++) {
NSIndexPath *p = [NSIndexPath indexPathWithIndex:i];
if ([[tableView cellForRowAtIndexPath:p] accessoryType] ==
UITableViewCellAccessoryCheckmark) {
[cellIndicesToBeDeleted addObject:p];
/*
perform deletion on data source
object here with i as the index
for whatever array-like structure
you're using to house the data
objects behind your UITableViewCells
*/
}
}
[tableView deleteRowsAtIndexPaths:cellIndicesToBeDeleted
withRowAnimation:UITableViewRowAnimationLeft];
[cellIndicesToBeDeleted release];
Assuming by "edit" you mean "delete a single UITableViewCell" or "move a single UITableViewCell," you can implement the following methods in the UITableViewController:
- (void)viewDidLoad {
[super viewDidLoad];
// This line gives you the Edit button that automatically comes with a UITableView
// You'll need to make sure you are showing the UINavigationBar for this button to appear
// Of course, you could use other buttons/#selectors to handle this too
self.navigationItem.rightBarButtonItem = self.editButtonItem;
}
// Override to support conditional editing of the table view.
- (BOOL)tableView:(UITableView *)tableView canEditRowAtIndexPath:(NSIndexPath *)indexPath {
// Return NO if you do not want the specified item to be editable.
return YES;
}
- (BOOL)tableView:(UITableView *)tableView canMoveRowAtIndexPath:(NSIndexPath *)indexPath {
return YES;
}
- (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath {
if (editingStyle == UITableViewCellEditingStyleDelete) {
//perform similar delete action as above but for one cell
}
}
- (void)tableView:(UITableView *)tableView moveRowAtIndexPath:(NSIndexPath *)fromIndexPath toIndexPath:(NSIndexPath *)toIndexPath {
//handle movement of UITableViewCells here
//UITableView cells don't just swap places; one moves directly to an index, others shift by 1 position.
}
You can put 1 UIButton lets call it "EDIT" and wire up it to IBAction. In IBAction write so you will be able to do as per your requirement.
-(IBAction)editTableForDeletingRow
{
[yourUITableViewNmae setEditing:editing animated:YES];
}
This will add round red buttons on the left hand corner and you can click on that Delete button will appear click on that and row will be deleted.
You can implement delegate method of UITableView as following.
-(UITableViewCellEditingStyle)tableView: (UITableView *)tableView editingStyleForRowAtIndexPath: (NSIndexPath *)indexPath
{
//Do needed stuff here. Like removing values from stored NSMutableArray or UITableView datasource
}
Hope it helps.
you want to be looking for deleteRowsAtIndexPath, with all your code squeezed between [yourTable beginUpdates] & [yourTable endUpdates];
HI
In my appliacation I want deletion control button will not work for first row except for all other rows.
Please can anybody tell me how it would be possible.
Thanks
Implement editingStyleForRowAtIndexPath method in table delegate and return style value depending on cell's index:
- (UITableViewCellEditingStyle)tableView:(UITableView *)tableView
editingStyleForRowAtIndexPath:(NSIndexPath *)indexPath{
//Disable editing for 1st row in section
return (indexPath.row == 0) ? UITableViewCellEditingStyleNone : UITableViewCellEditingStyleDelete;
}
I'm set editing mode for UITableView to have a possibility of cell reordering. UITableViewCellEditingStyleNone is returned by editingStyleForRowAtIndexPath: method for every cell, but it reserve some area on the left of cell. Is it possible to prevent such an area reserving, because I'm not need an insert or delete icon on left? In short, i want have a cell that occupate all available area and still can be reordered.
// UITableViewDelegate
- (BOOL)tableView:(UITableView *)tableView shouldIndentWhileEditingRowAtIndexPath:(NSIndexPath *)indexPath {
return NO;
}
See the docs: You can set a boolean on the cell to make it not indent. Just add
cell.shouldIndentWhileEditing = NO;
to wherever you create your cell.
Set this to like 2 or 3
tableView:indentationLevelForRowAtIndexPath:
The shouldIndentWhileEditing property only works with grouped tables. I found that setting an indentation level of -3 does the job for plain tables. Is there a better way? Here's what I'm using now:
if (self.tableView.style == UITableViewStylePlain) {
cell.indentationLevel = -3;
} else if (self.tableView.style == UITableViewStyleGrouped) {
cell.shouldIndentWhileEditing = FALSE;
}
Do both
- (BOOL)tableView:(UITableView *)tableView shouldIndentWhileEditingRowAtIndexPath:(NSIndexPath *)indexPath {
return NO;
}
and
- (UITableViewCellEditingStyle)tableView:(UITableView *)tableView editingStyleForRowAtIndexPath:(NSIndexPath *)indexPath {
return UITableViewCellEditingStyleNone;
}
in your UITableViewDelegate. Otherwise the cell content is indented.