Swift 3 button disappears from tableView cells

user_7823702 0
Viewed 623

I'm trying to create a tableView that has (for now) only a button in each cell.

I hard coded the number of rows to be 100:

public func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
    return 100
}

And this is my cellForRowAt function that creates the button and is suppose to properly place it in each cell:

public func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
    let cell = UITableViewCell(style: UITableViewCellStyle.default, reuseIdentifier: "Cell")

    let row = tableView.dequeueReusableCell(withIdentifier: "Cell", for: indexPath)
    let btn = UIButton(type:(UIButtonType.custom)) as UIButton
    btn.backgroundColor = UIColor.black
    btn.setTitle("(read more)", for: UIControlState.normal)
    btn.titleLabel!.font = UIFont(name: "Helvetica", size: 10)
    btn.frame = CGRect(x:300, y:row.bounds.height, width:70, height:20)
    btn.addTarget(self, action: Selector(("buttonPressed:")), for: UIControlEvents.touchUpInside)
    btn.tag = indexPath.row
    cell.contentView.addSubview(btn)

    return cell
}

So this places the buttons in each cell, but when I click on the cell, the associated button disappears or when i scroll down, most of the first few buttons are gone when I scroll back up. What am I doing wrong here? Any help would be greatly appreciated!

Thanks in advance.

swift uitableview ios
2 Answers

you must create a cell everytime in cellForRowAt rather get the cell from dequeue and draw your content again. Creating a cell again and again is not an good idea. Finding own mistake and solving will another curve of learning.

l

et cell = UITableViewCell(style: UITableViewCellStyle.default, reuseIdentifier: "Cell") // should not do

let row = tableView.dequeueReusableCell(withIdentifier: "Cell", for: indexPath) // can use it.

both line together should not use.

user_8759430
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