CODEWITHSUNDEEP
iphoneuitableviewuiviewios4
Nathan
Nathan

Reputation: 359

Swipe to Delete not working

The swipe to delete functionality is not working in my table view. I have implemented the commitEditingStyle delegate and the Edit button in the navigation bar. Hence when the user clicks the edit button, the delete and add buttons show up appropriately. However, on swiping, the delete button does not appear and it seems like it doesn't recognise the swipe as a call for the setEditing method.

I then implemented willBeginEditingRowAtIndexPath and didEndEditingRwoAtIndexPath delegates as follows: 

-(void)tableView:(UITableView*)tableView willBeginEditingRowAtIndexPath:(NSIndexPath *)indexPath

{
 NSLog(@"WILL BEGIN EDITING");

 [self.tableView setEditing:YES animated:YES];

}


-(void)tableView:(UITableView*)tableView didEndEditingRowAtIndexPath:(NSIndexPath *)indexPath

{

[self.tableView setEditing:NO animated:YES];

}

However this does not have any effect either. What could be the possible issue? I have enabled multi-touch for the table view in the IB and each cell has an DetailDisclosureButton accessory.

Upvotes: 10

Views: 13523

Answers (7)

Baalu
Baalu

Reputation: 243

-(void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath delegate method also need to implement to work swipe functionality .

Upvotes: -2

Jindřich Skeldal
Jindřich Skeldal

Reputation: 386

If all other advices doesn't help try to check if you have pan gesture recognizer in your code. It will not work if you have things like this in some underlaying view.

Upvotes: 5

Val
Val

Reputation: 22797

The key to make it work is to implement:

- (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath;

And remember to put it inside "UITableViewDataSource" instead of "UITableViewDelegate"

Upvotes: 2

Scott McKenzie
Scott McKenzie

Reputation: 16242

You'll need to implement:

- (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath;


- (UITableViewCellEditingStyle)tableView:(UITableView *)tableView editingStyleForRowAtIndexPath:(NSIndexPath *)indexPath;

- (BOOL)tableView:(UITableView *)tableView canEditRowAtIndexPath:(NSIndexPath *)indexPath;

With these three things you should be good to go. (I missed off the commitEditingStyle and it never worked.

Upvotes: 6

Nathan
Nathan

Reputation: 359

I was doing the following in the tableView:editingStyleForRowAtIndexPath: delegate method :-

if (self.editing == NO || !indexPath)
{   
    return UITableViewCellEditingStyleNone;
}

This was supposed to return editing style none if no indexPath was selected. For some reason whenever a swipe action was performed, this particular if condition was getting executed. On commenting the above code snippet, the swipe to delete action worked fine.

Thanks all for your help.

Upvotes: 4

Aaron Saunders
Aaron Saunders

Reputation: 33335

did you implement the tableView:editingStyleForRowAtIndexPath: method and have it return UITableViewCellEditingStyleDelete

Upvotes: 0

Peter DeWeese
Peter DeWeese

Reputation: 18333

For swipe-to-delete functionality, you have to implement

 -(void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath
{
    if (editingStyle == UITableViewCellEditingStyleDelete)
        ; // Delete.
}

EDIT: I didn't read the question well enough.

I have noticed that to do a swipe drag in the simulator I have to press and pause for a second while it selects the cell, and only then can I swipe right successfully.

Upvotes: 7

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