CODEWITHSUNDEEP
iosuitableviewuibutton
AlexanderZ
AlexanderZ

Reputation: 2158

Find out which UITableView the button belongs to

In landscape view I have a UIScrollView where I add UITableViews dynamically. UITableViews are 200px wide so there are can be 2-3 of them on the screen. Each cell has a button.

When the button is pushed how can I know which UITableView that button belong to?

PS implementation of cellForRowAtIndexPath:

cell = (CellHistory*)[tableView dequeueReusableCellWithIdentifier:@"Cell"];

if(!cell)
{
    NSArray *topLevelObjects = [[NSBundle mainBundle] loadNibNamed:@"CellHistory" owner:nil options:nil];
    for(id currentObject in topLevelObjects)
    {
        if([currentObject isKindOfClass:[CellHistory class]])
        {
            cell = (CellHistory *)currentObject;
            break;
        }
    }
}


UIButton *noteButton = [UIButton buttonWithType:UIButtonTypeCustom];
[noteButton setFrame:CGRectMake(0, 0, 44, 44)];
[cell addSubview:noteButton];
[noteButton addTarget:self action:@selector(checkButtonTapped:event:) forControlEvents:UIControlEventTouchUpInside];

return cell;

PS2 how I add UITableViews to UIScrollView:

for (int i=0; i<allDays.count; i++) {
            CGRect landTableRect = CGRectMake(landContentOffset+0.0f, 60.0f, 200.0f, 307.0f);
            landTableView = [[UITableView alloc] initWithFrame:landTableRect style:UITableViewStylePlain];
            [landTableView setTag:i];
            [landTableView setNeedsDisplay];
            [landTableView setNeedsLayout];
            landTableView.delegate = self;
            landTableView.dataSource = self;
            [_landScrollView addSubview:landTableView];
            [landTableView reloadData];
            landContentOffset += landTableView.frame.size.width;
            _landScrollView.contentSize = CGSizeMake(landContentOffset, _landScrollView.frame.size.height);
            [allLandTableViews addObject:landTableView];
        }

Upvotes: 0

Views: 143

Answers (3)

punycode
punycode

Reputation: 556

You can use a helpful category method on UIView to just walk your view hierarchy until a matching parent is discovered:

@implementation UIView (ParentOfClass)

- (UIView *)parentViewWithClass:(Class)aClass
{
    UIView *current = self;
    UIView *result = nil;
    while ((current = current.superview) != nil) {
        if ([current isKindOfClass:aClass]) {
            result = current;
            break;
        }
    }
    return result;
}

@end

Then in your UIButton handling code you get the UITableView by a simple call:

- (IBAction)pressedButton:(id)sender
{
    UITableView *tableView = [sender parentViewWithClass:[UITableView class]];
    // ...
}

Upvotes: 1

Schrodingrrr
Schrodingrrr

Reputation: 4271

In your cellForRowAtIndexPath: check 

if (tableView == youTableViewA)
    button.tag = 1;
else if (tableView == yourTableViewB)
    button.tag = 2;

. . . And so on.

Where you are assigning a target to your button with addTarget:action:forControlEvents: make sure your target method accepts a parameter:

- (void) targetMethod:(id)sender{

    if (sender.tag == 1){

        //tableViewA

    }else if (sender.tag == 2){

        //tableViewB

    }

}

. . . and so on.

Upvotes: 1

William Falcon
William Falcon

Reputation: 9823

You should add a tag to each button that matches the tag for each table view. Then you can compare them

Upvotes: 1

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