How to pass an int value on UIButton click inside UITableView
- by Toran Billups
So I have a view controller with a single UITableView that shows a string to the user. But I needed a way to have the user select this object by id using a normal UIButton so I added it as a subview and the click event works as expected.
The issue is this - how can I pass an int value to this click event? I've tried using attributes of the button like button.tag or button.accessibilityhint without much success. How do the professionals pass an int value like this?
Also it's important that I can get the actual [x intValue] from the int later in the process. A while back I thought I could do this with a simple
NSLog(@"the actual selected hat was %d", [obj.idValue intValue]);
But this doesn't appear to work (any idea how I can pull the actual int value directly from the variable?).
The working code I have is below
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
static NSString *CellIdentifier = @"Cell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier] autorelease];
}
if ([self.hats count] > 0) {
Hat* obj = [self.hats objectAtIndex: [indexPath row]];
NSMutableString* fullName = [[NSMutableString alloc] init];
[fullName appendFormat:@"%@", obj.name];
[fullName appendFormat:@" %@", obj.type];
cell.textLabel.text = fullName;
cell.accessoryType = UITableViewCellAccessoryDetailDisclosureButton;
//add the button to subview hack
UIButton* button = [UIButton buttonWithType:UIButtonTypeRoundedRect];
button.frame = CGRectMake(50, 5, 50, 25);
[button setTitle:@"Select" forState:UIControlStateNormal];
button.backgroundColor = [UIColor clearColor];
button.adjustsImageWhenHighlighted = YES;
button.tag = obj.idValue; //this is my current hack to add the id but no dice :(
[button addTarget:self action:@selector(action:) forControlEvents:UIControlEventTouchUpInside];
[cell.contentView addSubview:button];
//hack
}
return cell;
}
- (void)action:(id)sender {
int* hatId = ((UIButton *)sender).tag; //try to pull the id value I added above ...
//do something w/ the hatId
}
