以编程方式添加 UIView 和 UITableView [英] Add UIView and UITableView programmatically
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问题描述
我正在努力做到这一点,如第一张图片所示:
I am trying to make this, as in the first picture:
但是视图不知何故没有像我想要的那样显示.在这里你可以看到我的完整项目代码:
But the view somehow does not show up like I want it to. Here you can see my full project code:
import UIKit
import RealmSwift
import CVCalendar
class Test: UIViewController, UITableViewDelegate, UITableViewDataSource {
var myTableView: UITableView = UITableView()
var itemsToLoad: [String] = ["One", "Two", "Three"]
var myView = UIView()
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
override func viewDidLoad() {
super.viewDidLoad()
self.view.backgroundColor = UIColor(red: 4/255, green: 4/255, blue: 4/255, alpha: 1.0)
self.navigationController?.navigationBar.barStyle = .black
self.navigationController?.navigationBar.tintColor = UIColor.white
self.navigationItem.title = "Test"
self.navigationController?.navigationBar.prefersLargeTitles = true
}
override func viewWillAppear(_ animated: Bool) {
super.viewWillAppear(animated)
// Get main screen bounds
let screenSize: CGRect = UIScreen.main.bounds
let screenWidth = screenSize.width
let screenHeight = screenSize.height
myView.frame = CGRect(x: 0, y: 0, width: screenWidth, height: 150)
myView.backgroundColor = .black
self.view.addSubview(myView)
myTableView.frame = CGRect(x: 0, y: 50, width: screenWidth, height: screenHeight-50);
myTableView.dataSource = self
myTableView.delegate = self
myTableView.backgroundColor = .blue
myTableView.layer.borderWidth = 3
myTableView.register(UITableViewCell.self, forCellReuseIdentifier: "cell")
self.view.addSubview(myTableView)
}
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int
{
return itemsToLoad.count
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell:UITableViewCell = tableView.dequeueReusableCell(withIdentifier: "cell", for: indexPath)
cell.textLabel?.text = self.itemsToLoad[indexPath.row]
return cell
}
func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
print("User selected table row \(indexPath.row) and item \(itemsToLoad[indexPath.row])")
}
}
为什么不显示?第一张图是我想要的样子,第二张图是现在的样子.
Why won't it show up? The first picture is how I want it, then second picture is how it looks now.
推荐答案
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell:UITableViewCell = tableView.dequeueReusableCell(withIdentifier: "cell", for: indexPath)
if self.itemsToLoad[indexPath.row] != nil {
cell.textLabel?.text = self.itemsToLoad[indexPath.row]
cell.backgroundColor = .white
}else {
cell.backgroundColor = .blue
}
return cell
}
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