How to find/ delete the CUSTOM row detail of UITableViewCell

问题

This question is bit related to my earlier question

I am newbie for iPhone application and trying to learn UITableView with JSON. I followed this video for learning.

I created same example using Stoaryboard and also added new screen where I can add data. Now I was trying to delete the data. So what I did is thought is instead of below method, I will add button on each row and on clicking of that I will delete the data.

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

But I am not getting how I will get the row details and how to delete.

Any help/ suggestion would be grateful.

Below is how my screen looks like.

Note:

The UITableViewCell is of CUSTOM type.

回答1:

Update the data model according to edit actions delete using bellow code.

This bellow code is just an example for hot to delete or remove the object from array and also from table .. for more info check the tutorial which i post the link bellow..

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

     if (editingStyle == UITableViewCellEditingStyleDelete) {

         [arryData removeObjectAtIndex:indexPath.row];

        [tblSimpleTable reloadData];

     } 
}

or also using this bellow logic with custom button of cell...

- (IBAction)deleteCustomCellWithUIButton:(id)sender
{
  NSIndexPath *indexPath = [yourTableView indexPathForCell:(UITableViewCell *)[[[sender superview] superview] superview]];
  NSUInteger row = [indexPath row];
  [yourTableView removeObjectAtIndex:row];
  [yourTableView deleteRowsAtIndexPaths:[NSArray arrayWithObject:indexPath]  withRowAnimation:UITableViewRowAnimationFade];
}

For more info refer these tutorial...

iphone-sdk-tutorial-add-delete-reorder-UITableView-row
multiple-row-selection-and-editing-in

回答2:

You can add a button on each row and set the button.tag to the indexPath.row in the cellForRowAtIndex: method. Then in your button method you can delete the entry from the Array that is used to populate the UITableView and then reloadData

回答3:

You have many way to get cell or indexPath of cell:

(UITableViewCell *)cellForRowAtIndexPath:(NSIndexPath *)indexPath
(NSIndexPath *)indexPathForCell:(UITableViewCell *)cell
(NSIndexPath *)indexPathForRowAtPoint:(CGPoint)point
(NSArray *)indexPathsForRowsInRect:(CGRect)rect
(NSArray *)visibleCells
(NSArray *)indexPathsForVisibleRows

If you want to handel IBAction of UIButton than use indexPathForRowAtPoint like this :

-(IBAction)myAction:(id)sender
{

CGPoint location            = [sender convertPoint:CGPointZero toView:self.tableView];
NSIndexPath *indexPath      = [self.tableView indexPathForRowAtPoint:location];
UITableViewCell *swipeCell  = [self.tableView cellForRowAtIndexPath:indexPath];

NSLog(@"Selected row: %d", indexPath.row);
//......

}

OR indexPathForCell

- (void)buttonPressedAction:(id)sender
{
   UIButton *button = (UIButton *)sender;
   // Get the UITableViewCell which is the superview of the UITableViewCellContentView which is the superview of the UIButton
   (UITableViewCell*)cell = [[button superview] superview];
   int row = [myTable indexPathForCell:cell].row;
}

I have taken code from : Detecting which UIButton was pressed in a UITableView

Custom UITableViewCell button action?

来源：https://stackoverflow.com/questions/14235433/how-to-find-delete-the-custom-row-detail-of-uitableviewcell

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iphone

objective-c

uitableview

ios6