Passing text from a UIAlertView text field to a custom cell label

Question

I have an application that pulls information from a SQLite database and populates the cells within a TableView. However, I want the user to be able to click a cell and then be able to edit the content within that cell via the AlertView. The following is part of my code:

    //Set up cell
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:    (NSIndexPath *)indexPath
{
CustomCell *cell = [tableView dequeueReusableCellWithIdentifier:@"Cell" forIndexPath:indexPath];


cell.textLabel.text = [resultSet objectAtIndex:indexPath.row];

return cell;
}

-(void)tableView:(UITableView *)tableView didDeselectRowAtIndexPath:(NSIndexPath *)indexPath{

CustomCell *cell = [tableView cellForRowAtIndexPath:indexPath];

UIAlertView *av = [[UIAlertView alloc] initWithTitle:@"Question" message:@"Please enter a new question" delegate:self cancelButtonTitle:@"Cancel" otherButtonTitles:@"OK", nil];
av.alertViewStyle = UIAlertViewStylePlainTextInput;
txtNewQuestion = [av textFieldAtIndex:0];
txtNewQuestion.clearButtonMode = UITextFieldViewModeWhileEditing;
av.delegate = self;
[txtNewQuestion setPlaceholder:@"new Question"];
[av show];
[self.txtNewQuestion becomeFirstResponder];
}

-(void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex  {



if (buttonIndex == 1) {

    CustomCell *cell;
    enteredQuestion = txtNewQuestion.text;
    cell.customLabel.text = enteredQuestion;
    NSLog(@"%@", enteredQuestion);
    NSLog(@"%@", cell.customLabel.text);

}
[self.tableView reloadData];

}

Any assistance would be greatly appreciated. Thanks.

What's the problem? The text is empty/nil? – gran33 Jun 10 '14 at 13:58 — gran33, Jun 10 '14 at 13:58

score 2 · Accepted Answer · answered Jun 10 '14 at 14:12

I would use didSelectRowAtIndexPath instead, and I sometimes like to use tags :

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath;
{
    UIAlertView *av = [[UIAlertView alloc] initWithTitle:@"Question" message:@"Please enter a new question" delegate:self cancelButtonTitle:@"Cancel" otherButtonTitles:@"OK", nil];
    av.alertViewStyle = UIAlertViewStylePlainTextInput;
    av.delegate = self;
    av.tag = [indexPath row];
    [av show];
}

-(void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex
{
    if (buttonIndex == 1) {
        [resultSet replaceObjectAtIndex:alertView.tag withObject:[alertView textFieldAtIndex:0].text];
        [table reloadData];
    }
}

Worked an absolute treat, thank you very much. Unfortunately can't give any up votes yet but thank you! — niall8s, Jun 10 '14 at 14:22

score 0 · Answer 2 · answered Jun 10 '14 at 14:11

0

How do you get the cell in the UIAlertView delegate? How do you save the enteredQuestion?

When you call reloadData the whole table will be reconstructed (Documentation)

answered Jun 10 '14 at 14:11

George Petrov

163
4

Passing text from a UIAlertView text field to a custom cell label

2 Answers2