public void LinearLayouterRequestLayout()
{
tlog.Debug(tag, $"LinearLayouterRequestLayout START");
var view = new CollectionView(new List <string>()
{
"123", "456", "789"
})
{
Header = new RecyclerViewItem(),
Footer = new RecyclerViewItem(),
IsGrouped = true,
};
Assert.IsNotNull(view, "Should not be null");
view.GroupFooterTemplate = new DataTemplate(typeof(RecyclerViewItem));
view.GroupHeaderTemplate = new DataTemplate(typeof(RecyclerViewItem));
view.ItemTemplate = new DataTemplate(typeof(RecyclerViewItem));
var linearLayouter = new LinearLayouter();
Assert.IsNotNull(linearLayouter, "Should not be null");
linearLayouter.Initialize(view);
linearLayouter.RequestLayout(5.0f);
linearLayouter.RequestLayout(150.0f, true);
view.Dispose();
linearLayouter.Dispose();
tlog.Debug(tag, $"LinearLayouterRequestLayout END (OK)");
}
public void LinearLayouterRequestNextFocusableView()
{
tlog.Debug(tag, $"LinearLayouterRequestNextFocusableView");
var view = new CollectionView(new List <string>()
{
"123", "456"
})
{
Header = new RecyclerViewItem(),
Footer = new RecyclerViewItem(),
IsGrouped = true,
};
Assert.IsNotNull(view, "Should not be null");
view.GroupFooterTemplate = new DataTemplate(typeof(RecyclerViewItem));
view.GroupHeaderTemplate = new DataTemplate(typeof(RecyclerViewItem));
view.ItemTemplate = new DataTemplate(typeof(RecyclerViewItem));
var linearLayouter = new LinearLayouter();
Assert.IsNotNull(linearLayouter, "Should not be null");
linearLayouter.Initialize(view);
linearLayouter.RequestLayout(100.0f);
var source = new CustomGroupItemSource(view)
{
Position = 1,
};
var orientationSize = linearLayouter.CalculateLayoutOrientationSize();
Assert.AreEqual(orientationSize, 6);
var scrollPosition = linearLayouter.CalculateCandidateScrollPosition(0.0f);
Assert.AreEqual(scrollPosition, 0.0f);
linearLayouter.NotifyItemRangeInserted(source, 0, 10);
linearLayouter.RequestNextFocusableView(view, View.FocusDirection.Up, true);
linearLayouter.RequestNextFocusableView(view, View.FocusDirection.Down, true);
linearLayouter.RequestNextFocusableView(view, View.FocusDirection.PageUp, true);
linearLayouter.RequestNextFocusableView(view, View.FocusDirection.PageDown, true);
linearLayouter.RequestNextFocusableView(view, View.FocusDirection.Left, true);
linearLayouter.RequestNextFocusableView(view, View.FocusDirection.Right, true);
view.Dispose();
linearLayouter.Dispose();
source.Dispose();
tlog.Debug(tag, $"LinearLayouterRequestNextFocusableView END (OK)");
}
public void LinearLayouterNotifyItemRemoved()
{
tlog.Debug(tag, $"LinearLayouterNotifyItemRemoved");
var view = new CollectionView(new List <string>()
{
"123", "456"
})
{
Header = new RecyclerViewItem(),
Footer = new RecyclerViewItem(),
IsGrouped = true,
};
Assert.IsNotNull(view, "Should not be null");
view.GroupFooterTemplate = new DataTemplate(typeof(RecyclerViewItem));
view.GroupHeaderTemplate = new DataTemplate(typeof(RecyclerViewItem));
view.ItemTemplate = new DataTemplate(typeof(RecyclerViewItem));
var linearLayouter = new LinearLayouter();
Assert.IsNotNull(linearLayouter, "Should not be null");
linearLayouter.Initialize(view);
linearLayouter.RequestLayout(100.0f);
var source = new CustomGroupItemSource(view)
{
Position = 1,
};
linearLayouter.NotifyItemRangeInserted(source, 0, 1);
linearLayouter.NotifyItemRemoved(source, 0);
linearLayouter.NotifyItemRangeInserted(source, 0, 2);
linearLayouter.NotifyItemRemoved(source, 1);
var emptySource = new CustomEmptySource();
linearLayouter.NotifyItemInserted(emptySource, 1);
linearLayouter.NotifyItemRemoved(emptySource, 1);
view.Dispose();
linearLayouter.Dispose();
source.Dispose();
emptySource.Dispose();
tlog.Debug(tag, $"LinearLayouterNotifyItemRemoved END (OK)");
}
public void LinearLayouterNotifyItemSizeChanged()
{
tlog.Debug(tag, $"LinearLayouterNotifyItemSizeChanged");
var view = new CollectionView(new List <string>()
{
"123"
})
{
Header = new RecyclerViewItem(),
IsGrouped = false,
};
Assert.IsNotNull(view, "Should not be null");
view.GroupHeaderTemplate = new DataTemplate(typeof(RecyclerViewItem));
view.ItemTemplate = new DataTemplate(typeof(RecyclerViewItem));
var emptySource = new CustomEmptySource();
var linearLayouter = new LinearLayouter();
Assert.IsNotNull(linearLayouter, "Should not be null");
linearLayouter.Initialize(view);
var item = new RecyclerViewItem()
{
Size = new Size(200, 100),
};
//linearLayouter.NotifyItemSizeChanged(item);
item.Dispose();
view.Dispose();
linearLayouter.Dispose();
tlog.Debug(tag, $"LinearLayouterNotifyItemSizeChanged END (OK)");
}
/// <summary>
/// Override to create the required scene
/// </summary>
protected override void OnCreate()
{
base.OnCreate();
int ItemCount = 400;
// Get the window instance and change background color
Window window = Window.Instance;
window.BackgroundColor = Color.White;
View Box = new View()
{
WidthSpecification = LayoutParamPolicies.MatchParent,
HeightSpecification = LayoutParamPolicies.MatchParent
};
Box.Layout = new LinearLayout()
{
LinearOrientation = LinearLayout.Orientation.Vertical
};
window.Add(Box);
View ButtonBox = new View()
{
WidthSpecification = LayoutParamPolicies.MatchParent,
HeightSpecification = 0,
Weight = 0.1F
};
ButtonBox.Layout = new LinearLayout()
{
LinearOrientation = LinearLayout.Orientation.Horizontal
};
Box.Add(ButtonBox);
Button NearestButton = new Button()
{
WidthSpecification = 0,
HeightSpecification = LayoutParamPolicies.MatchParent,
Weight = 1,
Text = "Nearest"
};
NearestButton.Clicked += NearestClickedEvt;
ButtonBox.Add(NearestButton);
Button StartButton = new Button()
{
WidthSpecification = 0,
HeightSpecification = LayoutParamPolicies.MatchParent,
Weight = 1,
Text = "Start"
};
StartButton.Clicked += StartClickedEvt;
ButtonBox.Add(StartButton);
Button CenterButton = new Button()
{
WidthSpecification = 0,
HeightSpecification = LayoutParamPolicies.MatchParent,
Weight = 1,
Text = "Center"
};
CenterButton.Clicked += CenterClickedEvt;
ButtonBox.Add(CenterButton);
Button EndButton = new Button()
{
WidthSpecification = 0,
HeightSpecification = LayoutParamPolicies.MatchParent,
Weight = 1,
Text = "End"
};
EndButton.Clicked += EndClickedEvt;
ButtonBox.Add(EndButton);
var Data = Example.DummyData.CreateDummyMenu(ItemCount);
targetItem = Data[50];
var titleStyle = new ViewItemStyle()
{
Name = "titleStyle",
BackgroundColor = new Selector <Color>()
{
Normal = new Color(0.972F, 0.952F, 0.749F, 1),
Pressed = new Color(0.1F, 0.85F, 0.85F, 1),
Disabled = new Color(0.70F, 0.70F, 0.70F, 1),
Selected = new Color(0.701F, 0.898F, 0.937F, 1)
}
};
ItemsLayouter viewLayouter = new LinearLayouter(); // GridLayouter();
RadioButtonGroup group = new RadioButtonGroup();
selectionMode = ItemSelectionMode.SingleSelection;
if (viewLayouter is LinearLayouter)
{
colView = new CollectionView()
{
SizingStrategy = ItemSizingStrategy.MeasureFirst,
ItemsSource = Data,
ItemTemplate = new DataTemplate(() =>
{
MyItem item = new MyItem();
item.Label.SetBinding(TextLabel.TextProperty, "IndexName");
item.Label.HorizontalAlignment = HorizontalAlignment.Begin;
item.LabelPadding = new Extents(10, 10, 10, 10);
item.Icon.SetBinding(ImageView.ResourceUrlProperty, "SubNameUrl");
item.Icon.WidthSpecification = 50;
item.Icon.HeightSpecification = 50;
item.IconPadding = new Extents(10, 10, 10, 10);
var radio = new RadioButton();
item.Extra = radio;
radio.SetBinding(RadioButton.IsSelectedProperty, "Selected");
item.Extra.WidthSpecification = 50;
item.Extra.HeightSpecification = 50;
item.ExtraPadding = new Extents(10, 10, 10, 10);
return(item);
}),
ItemsLayouter = viewLayouter,
Header = new OneLineLinearItem(titleStyle)
{
WidthSpecification = LayoutParamPolicies.MatchParent,
HeightSpecification = 50,
Text = "Header!"
},
Footer = new OneLineLinearItem()
{
WidthSpecification = LayoutParamPolicies.MatchParent,
HeightSpecification = 50,
Text = "Count:[" + Data.Count + "]"
},
ScrollingDirection = ScrollableBase.Direction.Vertical,
WidthSpecification = LayoutParamPolicies.MatchParent,
HeightSpecification = 0,
Weight = 0.5F,
SelectionMode = selectionMode,
BackgroundColor = Color.Cyan
};
}
else if (viewLayouter is GridLayouter)
{
colView = new CollectionView()
{
SizingStrategy = ItemSizingStrategy.MeasureFirst,
ItemTemplate = new DataTemplate(() =>
{
MyItem2 item = new MyItem2();
item.Label.SetBinding(TextLabel.TextProperty, "IndexName");
item.Label.HorizontalAlignment = HorizontalAlignment.Begin;
item.Label.PointSize = 10;
item.LabelPadding = new Extents(5, 5, 5, 5);
item.Image.SetBinding(ImageView.ResourceUrlProperty, "SubNameUrl");
item.Image.WidthSpecification = 110;
item.Image.HeightSpecification = 110;
item.ImagePadding = new Extents(5, 5, 5, 5);
item.Badge = new CheckBox();
item.Badge.WidthSpecification = 20;
item.Badge.HeightSpecification = 20;
item.BadgePadding = new Extents(2, 2, 2, 2);
return(item);
}),
ItemsSource = Data,
ItemsLayouter = viewLayouter,
Header = new OneLineLinearItem(titleStyle)
{
WidthSpecification = LayoutParamPolicies.MatchParent,
HeightSpecification = 80,
//WidthSpecification = 100,
//HeightSpecification = LayoutParamPolicies.MatchParent,
Text = "Header!"
},
Footer = new OneLineLinearItem()
{
WidthSpecification = LayoutParamPolicies.MatchParent,
HeightSpecification = 80,
//WidthSpecification = 200,
//HeightSpecification = LayoutParamPolicies.MatchParent,
Text = "Count:[" + Data.Count + "]"
},
ScrollingDirection = ScrollableBase.Direction.Vertical,
WidthSpecification = LayoutParamPolicies.MatchParent,
HeightSpecification = 0,
Weight = 0.4F,
SelectionMode = selectionMode,
BackgroundColor = Color.Blue
};
}
colView.SelectionChanged += SelectionEvt;
Box.Add(colView);
window.KeyEvent += OnKeyEvent;
}
