在 IB 中,我设置了一个表格视图并在内容视图中添加了一个堆栈视图(可以通过编程方式完成)。标签是通过编程设置的,因为它允许我将每列的宽度设置为单元格宽度的一部分。另外,我承认应该将表格视图 cellForRow 方法中的一些计算移出。
import UIKit
class tableViewController: UITableViewController {
var firstTime = true
var width = CGFloat(0.0)
var height = CGFloat(0.0)
var cellRect = CGRectMake(0.0,0.0,0.0,0.0)
let colors:[UIColor] = [
UIColor.greenColor(),
UIColor.yellowColor(),
UIColor.lightGrayColor(),
UIColor.blueColor(),
UIColor.cyanColor()
]
override func viewDidLoad() {
super.viewDidLoad()
// workaround to get the cell width
cellRect = CGRectMake(0, 0, self.tableView.frame.size.width ,44);
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
}
// MARK: - Table view data source
override func numberOfSectionsInTableView(tableView: UITableView) -> Int {
return 3
}
override func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return 1
}
var cellWidth = CGFloat(0.0)
var cellHeight = CGFloat(0.0)
let widths = [0.2,0.3,0.3,0.2]
let labels = ["0","1","2","3"]
override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCellWithIdentifier("cell", forIndexPath: indexPath)
let v = cell.contentView.subviews[0] // points to stack view
// Note: using w = v.frame.width picks up the width assigned by xCode.
cellWidth = cellRect.width-20.0 // work around to get a right width
cellHeight = cellRect.height
var x:CGFloat = 0.0
for i in 0 ..< labels.count {
let wl = cellWidth * CGFloat(widths[i])
let lFrame = CGRect(origin:CGPoint(x: x,y: 0),size: CGSize(width:wl,height: cellHeight))
let label = UILabel(frame: lFrame)
label.textAlignment = .Center
label.text = labels[i]
v.addSubview(label)
x = x + wl
print("i = ",i,v.subviews[i])
v.subviews[i].backgroundColor = colors[i]
}
return cell
}
}