UITableView编辑模式是否添加用户定义的单元格？

Question

I wanted to use the table editing mode so that the users can choose which Cells to add.

For eg I have

addArray = {@"Red",@"Blue",@"Green"};

Now , what I want is that when user enters the editing mode and presses the add button, he gets the options: Red , Blue , Green and selects the cell to be added.

-(IBAction)addButtonPressed
{
  [displayArray addObject:"User's Choice"];
  [self.tableview reloadData];
}

Answer 1

You probably want to use a UIActionSheet (see Apple docs ):

UIActionSheet *actionSheet = [[UIActionSheet alloc]
                               initWithTitle:@"Select an option"
                               delegate:self
                               cancelButtonTitle:@"Cancel"
                               destructiveButtonTitle:nil
                               otherButtonTitles:@"Red", @"Green", @"Blue", nil];
[actionSheet showInView:self.view];

You will need to make your view controller conform to the UIActionSheetDelegate protocol:

@interface MyViewController : UITableViewController <UIActionSheetDelegate>

Then, implement the actionSheet:clickedButtonAtIndex: method in your view controller:

- (void)actionSheet:(UIActionSheet *)actionSheet clickedButtonAtIndex:(NSInteger)buttonIndex {
    if (buttonIndex == actionSheet.firstOtherButtonIndex) {
        // Red
        [displayArray addObject:"Red"];
        [self.tableview reloadData];
    }
    else if (buttonIndex == actionSheet.firstOtherButtonIndex + 1) {
        // Green
        [displayArray addObject:"Green"];
        [self.tableview reloadData];
    }
    else if (buttonIndex == actionSheet.firstOtherButtonIndex + 2) {
        // Blue
        [displayArray addObject:"Blue"];
        [self.tableview reloadData];
    }
}