test/Tizen.NUI.Samples/Tizen.NUI.Samples/Samples/ScrollableFocus/ScrollableFocusAllChildrenSample.cs

   1 using System;
   2 using Tizen.NUI.BaseComponents;
   3 using Tizen.NUI;
   4 using Tizen.NUI.Components;
   5
   6
   7 namespace Tizen.NUI.Samples
   8 {
   9     public class ScrollableFocusAllChildrenSample : IExample
  10     {
  11         int SCROLLMAX = 50;
  12         public View root;
  13
  14         private string GetChildText(View parent)
  15         {
  16             if (parent != null)
  17             {
  18                 foreach(View child in parent.Children)
  19                 {
  20                     if (child is TextLabel label)
  21                     {
  22                         return $"{label.Text}";
  23                     }
  24                 }
  25             }
  26
  27             return "";
  28         }
  29
  30         private string GetLabelText(int i)
  31         {
  32             switch (i)
  33             {
  34                 case 0:
  35                     return "[1st]";
  36                 case 1:
  37                     return "[2nd]";
  38                 case 2:
  39                     return "[3rd]";
  40                 default:
  41                     return $"[{i+1}th]";
  42             }
  43         }
  44
  45         public void Activate()
  46         {
  47
  48             Random rnd = new Random();
  49             Window window = NUIApplication.GetDefaultWindow();
  50
  51             root = new View()
  52             {
  53                 BackgroundColor = Color.White,
  54                 WidthSpecification = LayoutParamPolicies.MatchParent,
  55                 HeightSpecification = LayoutParamPolicies.MatchParent,
  56                 Layout = new LinearLayout()
  57                 {
  58                     LinearOrientation = LinearLayout.Orientation.Vertical,
  59                     HorizontalAlignment = HorizontalAlignment.Center,
  60                     CellPadding = new Size(10, 10),
  61                 },
  62             };
  63             window.Add(root);
  64
  65             var focusInfo = new TextLabel()
  66             {
  67                 BackgroundColor = Color.Yellow,
  68                 TextColor = Color.Red,
  69                 Text = "Prev:[N/A] Current:[N/A]"
  70             };
  71             root.Add(focusInfo);
  72
  73             FocusManager.Instance.EnableDefaultAlgorithm(true);
  74             FocusManager.Instance.FocusChanged += (object s, FocusManager.FocusChangedEventArgs e) =>
  75             {
  76                 string prev = "[N/A]";
  77                 string cur = "[N/A]";
  78                 if (e.Previous != null)
  79                 {
  80                     var prevView = e.Previous;
  81                     prev = $"{prevView.Name}[{prevView.ID}]{GetChildText(prevView)}";
  82                 }
  83
  84                 if (e.Current != null)
  85                 {
  86                     var curView = e.Current;
  87                     cur = $"{curView.Name}[{curView.ID}]{GetChildText(curView)}";
  88                 }
  89
  90                 focusInfo.Text = $"Prev:{prev} Current:{cur}";
  91                 Console.WriteLine($"Focus Changed Prev:{prev} => Current:{cur}");
  92             };
  93
  94             var top = new Button()
  95             {
  96                 Focusable = true,
  97                 FocusableInTouch = true,
  98                 Text = "Top"
  99             };
 100             root.Add(top);
 101
 102             var verticalScrollView = new ScrollableBase()
 103             {
 104                 ScrollingDirection = ScrollableBase.Direction.Vertical,
 105                 WidthSpecification = LayoutParamPolicies.MatchParent,
 106                 HeightSpecification = LayoutParamPolicies.MatchParent,
 107                 BackgroundColor = Color.Gray,
 108                 Layout = new LinearLayout
 109                 {
 110                     LinearOrientation = LinearLayout.Orientation.Vertical,
 111                     HorizontalAlignment = HorizontalAlignment.Center,
 112                     CellPadding = new Size2D(10, 30),
 113                 }
 114             };
 115             root.Add(verticalScrollView);
 116
 117             for (int i = 0; i < SCROLLMAX; i++)
 118             {
 119                 var colorItem = new View()
 120                 {
 121                     WidthSpecification = LayoutParamPolicies.MatchParent,
 122                     HeightSpecification = LayoutParamPolicies.WrapContent,
 123                     BackgroundColor = new Color((float)rnd.Next(256)/256f, (float)rnd.Next(256)/256f, (float)rnd.Next(256)/256f, 1),
 124                     Focusable = true,
 125                     FocusableInTouch = true,
 126                     Layout = new LinearLayout
 127                     {
 128                         LinearOrientation = LinearLayout.Orientation.Horizontal,
 129                         VerticalAlignment = VerticalAlignment.Center,
 130                         CellPadding = new Size2D(10, 10),
 131                     }
 132                 };
 133                 var label = new TextLabel()
 134                 {
 135                     Text = GetLabelText(i),
 136                     PointSize = 20,
 137                 };
 138                 colorItem.Add(label);
 139                 verticalScrollView.Add(colorItem);
 140             }
 141
 142             var middle = new Button()
 143             {
 144                 Focusable = true,
 145                 FocusableInTouch = true,
 146                 Text = "Middle"
 147             };
 148             root.Add(middle);
 149
 150             var horizontalLayout = new View()
 151             {
 152                 BackgroundColor = Color.White,
 153                 WidthSpecification = LayoutParamPolicies.MatchParent,
 154                 HeightSpecification = LayoutParamPolicies.MatchParent,
 155                 Layout = new LinearLayout()
 156                 {
 157                     LinearOrientation = LinearLayout.Orientation.Horizontal,
 158                     VerticalAlignment = VerticalAlignment.Center,
 159                     CellPadding = new Size(10, 10),
 160                 },
 161             };
 162             root.Add(horizontalLayout);
 163
 164             var leftIcon = new RadioButton()
 165             {
 166                 WidthSpecification = 50,
 167                 HeightSpecification = 50,
 168                 Focusable = true,
 169                 FocusableInTouch = true,
 170             };
 171             horizontalLayout.Add(leftIcon);
 172
 173             var horizontalScrollView = new ScrollableBase()
 174             {
 175                 ScrollingDirection = ScrollableBase.Direction.Horizontal,
 176                 WidthSpecification = LayoutParamPolicies.MatchParent,
 177                 HeightSpecification = LayoutParamPolicies.MatchParent,
 178                 BackgroundColor = Color.Gray,
 179                 Layout = new LinearLayout
 180                 {
 181                     LinearOrientation = LinearLayout.Orientation.Horizontal,
 182                     VerticalAlignment = VerticalAlignment.Center,
 183                     CellPadding = new Size2D(30, 10),
 184                 }
 185             };
 186             horizontalLayout.Add(horizontalScrollView);
 187
 188             for (int i = 0; i < SCROLLMAX; i++)
 189             {
 190                 var colorItem = new View()
 191                 {
 192                     WidthSpecification = LayoutParamPolicies.WrapContent,
 193                     HeightSpecification = LayoutParamPolicies.MatchParent,
 194                     BackgroundColor = new Color((float)rnd.Next(256)/256f, (float)rnd.Next(256)/256f, (float)rnd.Next(256)/256f, 1),
 195                     Focusable = true,
 196                     FocusableInTouch = true,
 197                     Layout = new LinearLayout
 198                     {
 199                         LinearOrientation = LinearLayout.Orientation.Vertical,
 200                         HorizontalAlignment = HorizontalAlignment.Center,
 201                         CellPadding = new Size2D(10, 10),
 202                     }
 203                 };
 204                 var label = new TextLabel()
 205                 {
 206                     Text = GetLabelText(i),
 207                     PointSize = 20,
 208                 };
 209                 colorItem.Add(label);
 210                 horizontalScrollView.Add(colorItem);
 211             }
 212
 213             var rightIcon = new RadioButton()
 214             {
 215                 WidthSpecification = 50,
 216                 HeightSpecification = 50,
 217                 Focusable = true,
 218                 FocusableInTouch = true,
 219             };
 220             horizontalLayout.Add(rightIcon);
 221
 222             var bottom = new Button()
 223             {
 224                 Focusable = true,
 225                 FocusableInTouch = true,
 226                 Text = "Bottom"
 227             };
 228             root.Add(bottom);
 229         }
 230
 231         public void Deactivate()
 232         {
 233             if (root != null)
 234             {
 235                 NUIApplication.GetDefaultWindow().Remove(root);
 236                 root.Dispose();
 237             }
 238         }
 239     }
 240
 241 }