向UITableView添加頁面控制元件

我有一個 UITableView，我們希望對其進行調整，以便對用戶固定在頂部的表格中的專案產生類似輪播的效果。

我看到頁面控制元件是一個視圖控制器，另一個專案只是點容器。我已經看到其他一些 SO 答案建議我將 UIScrollview 與頁面控制元件一起使用，但在所有這些情況下，它們的資料只是影像，而在我的情況下，它是文本、按鈕和影像的組合，所以我迷失了好的清潔解決方案將是。

uj5u.com熱心網友回復：

正如我在評論中提到的，我們不能只是組合TabView PageControl，ScrollView在這種情況下也是需要的。

1. 創建一個ScrollView包裝所有視圖/元素，并將 ScrollView 放入Cell.ContentView.

2. 添加PageControl到Cell.ContentView.

參考

示例代碼

 public class User
    {
        public string icon { get; set; }
        public string name { get; set; }
        public string content { get; set; }
        public string image { get; set; }

    }

    [Register("UIViewController1")]
    public class UIViewController1 : UIViewController
    {
        public UIViewController1()
        {
        }

        public override void ViewDidLoad()
        {
            base.ViewDidLoad();

            UITableView table = new UITableView(View.Bounds); // defaults to Plain style
            List<User> tableItems = new List<User>();
            tableItems.Add(new User { icon = "dog.png", name = "Cole", content = "I'm test1", image = "bg1.PNG" });
            tableItems.Add(new User { icon = "dog.png", name = "Kevin", content = "I'm test222222222", image = "bg2.PNG" });
            tableItems.Add(new User { icon = "dog.png", name = "Tom", content = "I'm test333333_33333333", image = "bg3.PNG" });

            table.Source = new TableSource(tableItems);
            Add(table);


        }

    }

    public class TableSource : UITableViewSource
    {

        List<User> TableItems;
        string CellIdentifier = "TableCell";

        public TableSource(List<User> items)
        {
            TableItems = items;
        }

        public override nint RowsInSection(UITableView tableview, nint section)
        {
            return TableItems.Count;
        }

        int CellHeight = 250;

        public override nfloat GetHeightForRow(UITableView tableView, NSIndexPath indexPath)
        {
            return CellHeight;
        }

        public override UITableViewCell GetCell(UITableView tableView, NSIndexPath indexPath)
        {
            UITableViewCell cell = tableView.DequeueReusableCell(CellIdentifier);
            User item = TableItems[indexPath.Row];

            //if there are no cells to reuse, create a new one
            if (cell == null)
            {
                cell = new UITableViewCell(UITableViewCellStyle.Default, CellIdentifier);

                UIScrollView sc = new UIScrollView();
                sc.Frame = new CGRect(0, 0, UIScreen.MainScreen.Bounds.Width, CellHeight-10);

                for (int i = 0; i < 10; i  )
                {
                    UIImageView image = new UIImageView();
                    image.Frame = new CGRect(i* UIScreen.MainScreen.Bounds.Width   20, 10, 50, 50);
                    image.Layer.MasksToBounds = true;
                    image.Layer.CornerRadius = 25;
                    image.Image = UIImage.FromFile(item.icon);
                    sc.Add(image);

                    UILabel label = new UILabel();
                    label.Frame = new CGRect(i * UIScreen.MainScreen.Bounds.Width 80, 10, 100, 50);
                    label.TextColor = UIColor.LightGray;
                    label.Text = item.name;
                    sc.Add(label);


                    UILabel label2 = new UILabel();
                    label2.Frame = new CGRect(i * UIScreen.MainScreen.Bounds.Width  20, 60, 300, 60);
                    label2.Text = item.content;
                    sc.Add(label2);

                    UIImageView image2 = new UIImageView();
                    image2.Frame = new CGRect(i * UIScreen.MainScreen.Bounds.Width   100, 130, 150, 100);
                    image2.Image = UIImage.FromFile(item.image);
                    sc.Add(image2);
                }

                sc.ContentSize = new CGSize(10 * UIScreen.MainScreen.Bounds.Width, CellHeight-10);
                sc.PagingEnabled = true;
                sc.ShowsHorizontalScrollIndicator = false;

                UIPageControl page = new UIPageControl();
                page.BackgroundColor = UIColor.Red;
                page.Frame = new CGRect(0, CellHeight-10, cell.ContentView.Frame.Width, 10);
                page.Pages = 10;
                page.CurrentPage = 0;

                cell.ContentView.Add(sc);
                cell.ContentView.Add(page);


                sc.Scrolled  = (object sender, EventArgs e) => {
                    var pageWidth = sc.Frame.Size.Width;
                    var fractionalPage = sc.ContentOffset.X / pageWidth;
                    var p = Math.Floor(fractionalPage);
                    page.CurrentPage = (int)p;
                };
            }

            return cell;
        }
    }

標籤：合适的视图 xamarin.ios 用户界面控件

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