Uitableview Clear Background

UITableView clear background

    // Fix for iOS 7 to clear backgroundColor
    cell.backgroundColor = [UIColor clearColor];
    cell.backgroundView = [[UIView new] autorelease];
    cell.selectedBackgroundView = [[UIView new] autorelease];

in cellForRowAtIndexPath

Also, make sure that your tableview actually has transparent background (in storyboard):

How do I make this UITableView clear (transparent) in Swift 3

Note: Below code been tested in Swift 3.

Method 1:

Select your tableViewCell from your storyboard and goto Attributes Inspector under View change Background to clear

Method 2: Try below code inside your cellForRowAt

  cell.layer.backgroundColor = UIColor.clear.cgColor

Note : If above method didn't works.try clear your project build by pressing shift + option + command + k

Update: Update your cellForRowAt from below code...

func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {

    let cell = tableView.dequeueReusableCell(withIdentifier: "Cell", for: indexPath as IndexPath)
    cell.textLabel?.text = communities[indexPath.row]
    cell.textLabel?.font = UIFont(name: "Avenir", size: 12)
    cell.textLabel?.textColor = UIColor.red // set to any colour 
    cell.layer.backgroundColor = UIColor.clear.cgColor

    return cell
}

How to create a UITableViewCell with a transparent background

If both the other options didn't work try this

UIView *backView = [[[UIView alloc] initWithFrame:CGRectZero] autorelease];
backView.backgroundColor = [UIColor clearColor];
cell.backgroundView = backView;

Custom UITableviewCell transparent background error Swift 4

Try

self.backgroundColor = UIColor.clear
self.isOpaque = false 

Repeat it for contentView & bg

How to set clear background for UITableView Header with opaque body

After a couple days I was able to figure it out. The premise of the solution is to add a subview to the backgroundView of your table and change the subview's frame as you scroll.

The relevant code in viewDidLoad:

...
// Create the UIView that will become the tableView backgroundView
UIView *tableViewBackground = [[UIView alloc] initWithFrame:self.tableView.frame];
tableViewBackground.backgroundColor = [UIColor clearColor];

// Create the opaque backgroundView and set the frame so that it starts below the headerView
partialBackgroundView = [[UIView alloc] initWithFrame:CGRectMake(0, 250, 320.0, self.view.frame.size.height)];
partialBackgroundView.backgroundColor = [UIColor redColor];

// Add the partial background to the main background view and apply it to the tableView
[tableViewBackground addSubview:solidTableBodyBackgroundView];
self.tableView.backgroundView = tableViewBackground;
...

And then as you scroll, you can update the "visible window" in scrollViewDidScroll:

- (void)scrollViewDidScroll:(UIScrollView *)scrollView {
    CGFloat scrollOffset = scrollView.contentOffset.y;
    partialBackgroundView.frame = CGRectMake(0, 250 - scrollOffset, 320, self.view.frame.size.height);
    // Other parallax code for scrolling
}

There may be better ways of doing this, but I found this to be pretty simple and it worked well.

Swift - set clear background color in UITableView

In your WhishlistTableViewController class:

override func viewDidLoad() {
    super.viewDidLoad()

    // set background to clear
    tableView.backgroundColor = .clear

    // add clear view as tableFooterView
    // to prevent empty cells
    let v = UIView()
    v.backgroundColor = .clear
    tableView.tableFooterView = v

    // ... rest of table setup
    tableView.register(WishCell.self, forCellReuseIdentifier: "WishCell")
}

Now you no longer need v.view.backgroundColor = .clear in your declaration.

Another option if, for example, you sometimes want to use an instance of WhishlistTableViewController without the transparent background, change your declaration from:

let theTableView: WhishlistTableViewController = { ... }

to:

lazy var theTableView: WhishlistTableViewController = { ... }

Transparent background in grouped UITableView - iPhone

Instead of using

UIColor *bgColor = [[UIColor alloc] initWithWhite:1 alpha:0.0];
historyTable.backgroundColor = bgColor;

Just use:

historyTable.backgroundColor = [UIColor clearColor];

That also clears up the memory leak you were creating.

How to set clear background in table view cell swipe action?

You can just set the alpha value to 0 for background color of the action:

let modifyAction = UIContextualAction(style: .normal, title:  "", handler: { (ac:UIContextualAction, view:UIView, success:(Bool) -> Void) in
    print("Update action ...")
    success(true)
})
modifyAction.backgroundColor = UIColor.init(red: 0/255.0, green: 0/255.0, blue: 0/255.0, alpha: 0.0)

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