Question

I’ve added a button on cell of my table view like this-

UIButton* checkBoxBtn = [UIButton buttonWithType:UIButtonTypeCustom];
[checkBoxBtn setBackgroundImage:[UIImage imageNamed:@"check_normal.png"] forState:UIControlStateNormal];
    [checkBoxBtn addTarget:self action:@selector(checkBoxAction:) forControlEvents:UIControlEventTouchUpInside];
    checkBoxBtn.tag = indexPath.row;
    [cell.contentView addSubview:checkBoxBtn];

and this is my checkBoxAction

-(void) checkBoxAction: (UIButton *)sender
{
    NSInteger i =sender.tag + 1;
    float perc = (i*100/18.0);
    NSLog(@"%.2f",perc);
    NSString* percentageStr = [[NSString alloc] initWithFormat:@"%3.2f%%(%d out of 18)",perc, i];
    barTitle.text = percentageStr;
    barFGImage.hidden = NO;
    if (perc == 100.00) {
        [barFGImage setFrame:CGRectMake(barFGImage.frame.origin.x, barFGImage.frame.origin.y, 276.0, barFGImage.frame.size.height)];
    }
    else
    [barFGImage setFrame:CGRectMake(barFGImage.frame.origin.x, barFGImage.frame.origin.y, 280*perc/100, barFGImage.frame.size.height)];
    [sender setBackgroundImage:[UIImage imageNamed:@"check_select.png"] forState:UIControlStateNormal];
    sender.userInteractionEnabled = NO;
}

And every thing OK for now, but i want to show an alert when user press checkBoxBtn and if user press OK then the checkBoxAction should called.I know we have UIAlertView delegate method

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

But problem is that how to get checkBoxBtn in it?

EDIT: It is OK with Midhun MP’s answer, but i want one more thing- in my cell i have three labels and a button , with the click on check box i want to change label ‘Due in 6 days’ along with other stuff that we done in my checkBoxAction method
Please help me. Thanks.

Answer 1

For achieving this you need to implement the - (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex delegate method.

You can do it like:

Declare a UIButton instance in .h
like:

UIButton *button;

Change the button adding method like:

UIButton* checkBoxBtn = [UIButton buttonWithType:UIButtonTypeCustom];
[checkBoxBtn setBackgroundImage:[UIImage imageNamed:@"check_normal.png"] forState:UIControlStateNormal];
[checkBoxBtn addTarget:self action:@selector(showAlert:) forControlEvents:UIControlEventTouchUpInside];
checkBoxBtn.tag = indexPath.row;
[cell.contentView addSubview:checkBoxBtn];


 - (void) showAlert:(id)sender
{
   button = (UIButton *)sender
   UIAlertView *alert = [[UIAlertView alloc]initWithTitle:@"Title" message:@"Message" delegate:self cancelButtonTitle:@"OK" otherButtonTitles: @"Cancel"];
}

- (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex
{
   if(buttonIndex == 0)
   {
      [self checkBoxAction:button];
   }
}

For getting the label:

Add a tag to the label in cellForRowAtIndexPath: like:

statusText.tag = 7;
[cell.contentView addSubview:statusText];

And you can get the label using the following code:

UILabel *tempLabel = (UIlabel *)[[button superview] viewWithTag:7];
tempLabel.text = @"Midhun";