コード例 #1
0
        public IndicatorCodeGallery()
        {
            Title = "IndicatorView Gallery";

            On <iOS>().SetLargeTitleDisplay(LargeTitleDisplayMode.Never);

            var nItems = 10;

            var layout = new Grid
            {
                RowDefinitions = new RowDefinitionCollection
                {
                    new RowDefinition {
                        Height = GridLength.Auto
                    },
                    new RowDefinition {
                        Height = GridLength.Auto
                    },
                    new RowDefinition {
                        Height = GridLength.Auto
                    },
                    new RowDefinition {
                        Height = GridLength.Auto
                    },
                    new RowDefinition {
                        Height = GridLength.Star
                    },
                    new RowDefinition {
                        Height = GridLength.Auto
                    }
                }
            };

            var itemsLayout = new LinearItemsLayout(ItemsLayoutOrientation.Horizontal)
            {
                SnapPointsType      = SnapPointsType.MandatorySingle,
                SnapPointsAlignment = SnapPointsAlignment.Center
            };

            var itemTemplate = ExampleTemplates.CarouselTemplate();

            var carouselView = new CarouselView
            {
                ItemsLayout     = itemsLayout,
                ItemTemplate    = itemTemplate,
                BackgroundColor = Color.LightGray,
                AutomationId    = "TheCarouselView"
            };

            layout.Children.Add(carouselView);

            var generator = new ItemsSourceGenerator(carouselView, nItems, ItemsSourceType.ObservableCollection);

            layout.Children.Add(generator);

            generator.GenerateItems();

            var indicatorView = new IndicatorView
            {
                HorizontalOptions      = LayoutOptions.Center,
                Margin                 = new Thickness(12, 6, 12, 12),
                IndicatorColor         = Color.Gray,
                SelectedIndicatorColor = Color.Black,
                IndicatorsShape        = IndicatorShape.Square,
                AutomationId           = "TheIndicatorView"
            };

            carouselView.IndicatorView = indicatorView;

            layout.Children.Add(indicatorView);

            var stckColors = new StackLayout {
                Orientation = StackOrientation.Horizontal
            };

            stckColors.Children.Add(new Label {
                VerticalOptions = LayoutOptions.Center, Text = "IndicatorColor"
            });

            var colors = new List <string>
            {
                "Black",
                "Blue",
                "Red"
            };

            var colorsPicker = new Picker
            {
                ItemsSource  = colors,
                WidthRequest = 150
            };

            colorsPicker.SelectedIndex = 0;

            colorsPicker.SelectedIndexChanged += (s, e) =>
            {
                var selectedIndex = colorsPicker.SelectedIndex;

                switch (selectedIndex)
                {
                case 0:
                    indicatorView.IndicatorColor = Color.Black;
                    break;

                case 1:
                    indicatorView.IndicatorColor = Color.Blue;
                    break;

                case 2:
                    indicatorView.IndicatorColor = Color.Red;
                    break;
                }
            };

            stckColors.Children.Add(colorsPicker);

            layout.Children.Add(stckColors);

            var stckTemplate = new StackLayout {
                Orientation = StackOrientation.Horizontal
            };

            stckTemplate.Children.Add(new Label {
                VerticalOptions = LayoutOptions.Center, Text = "IndicatorTemplate"
            });

            var templates = new List <string>
            {
                "Circle",
                "Square",
                "Template"
            };

            var templatePicker = new Picker
            {
                ItemsSource  = templates,
                WidthRequest = 150,
                TextColor    = Color.Black
            };

            templatePicker.SelectedIndexChanged += (s, e) =>
            {
                var selectedIndex = templatePicker.SelectedIndex;

                switch (selectedIndex)
                {
                case 0:
                    indicatorView.IndicatorTemplate = null;
                    indicatorView.IndicatorsShape   = IndicatorShape.Circle;
                    break;

                case 1:
                    indicatorView.IndicatorTemplate = null;
                    indicatorView.IndicatorsShape   = IndicatorShape.Square;
                    break;

                case 2:
                    indicatorView.IndicatorTemplate = ExampleTemplates.IndicatorTemplate();
                    break;
                }
            };

            templatePicker.SelectedIndex = 0;

            stckTemplate.Children.Add(templatePicker);

            layout.Children.Add(stckTemplate);

            var stckSize = new StackLayout {
                Orientation = StackOrientation.Horizontal
            };

            stckSize.Children.Add(new Label {
                VerticalOptions = LayoutOptions.Center, Text = "Indicator Size"
            });

            //indicatorView.IndicatorSize = 25;

            var sizeSlider = new Slider
            {
                WidthRequest = 150,
                Value        = indicatorView.IndicatorSize,
                Maximum      = 50,
            };

            sizeSlider.ValueChanged += (s, e) =>
            {
                var indicatorSize = sizeSlider.Value;
                indicatorView.IndicatorSize = indicatorSize;
            };

            stckSize.Children.Add(sizeSlider);

            layout.Children.Add(stckSize);

            Grid.SetRow(generator, 0);
            Grid.SetRow(stckColors, 1);
            Grid.SetRow(stckTemplate, 2);
            Grid.SetRow(stckSize, 3);
            Grid.SetRow(carouselView, 4);
            Grid.SetRow(indicatorView, 5);

            Content = layout;
        }
コード例 #2
0
        public IndicatorCodeGallery()
        {
            Title = "IndicatorView Gallery";

            On <iOS>().SetLargeTitleDisplay(LargeTitleDisplayMode.Never);

            var nItems = 10;

            var layout = new Grid
            {
                RowDefinitions = new RowDefinitionCollection
                {
                    new RowDefinition {
                        Height = GridLength.Auto
                    },
                    new RowDefinition {
                        Height = GridLength.Auto
                    },
                    new RowDefinition {
                        Height = GridLength.Auto
                    },
                    new RowDefinition {
                        Height = GridLength.Auto
                    },
                    new RowDefinition {
                        Height = GridLength.Star
                    },
                    new RowDefinition {
                        Height = GridLength.Auto
                    },
                    new RowDefinition {
                        Height = GridLength.Auto
                    }
                }
            };

            var itemsLayout = new LinearItemsLayout(ItemsLayoutOrientation.Horizontal)
            {
                SnapPointsType      = SnapPointsType.MandatorySingle,
                SnapPointsAlignment = SnapPointsAlignment.Center
            };

            var itemTemplate = ExampleTemplates.CarouselTemplate();

            _carouselView = new CarouselView
            {
                ItemsLayout     = itemsLayout,
                ItemTemplate    = itemTemplate,
                BackgroundColor = Colors.LightGray,
                AutomationId    = "TheCarouselView"
            };

            layout.Children.Add(_carouselView);
            var generator = new ItemsSourceGenerator(_carouselView, nItems, ItemsSourceType.ObservableCollection);

            layout.Children.Add(generator);

            generator.GenerateItems();

            _carouselView.PropertyChanged += CarouselViewPropertyChanged;
            (_carouselView.ItemsSource as ObservableCollection <CollectionViewGalleryTestItem>).CollectionChanged += IndicatorCodeGalleryCollectionChanged;

            var indicatorView = new IndicatorView
            {
                HorizontalOptions      = LayoutOptions.Center,
                Margin                 = new Thickness(12, 6, 12, 12),
                IndicatorColor         = Colors.Gray,
                SelectedIndicatorColor = Colors.Black,
                IndicatorsShape        = IndicatorShape.Square,
                AutomationId           = "TheIndicatorView",
                Count = 5,
            };

            _carouselView.IndicatorView = indicatorView;

            layout.Children.Add(indicatorView);

            var stckColors = new StackLayout {
                Orientation = StackOrientation.Horizontal
            };

            stckColors.Children.Add(new Label {
                VerticalOptions = LayoutOptions.Center, Text = "IndicatorColor"
            });

            var colors = new List <string>
            {
                "Black",
                "Blue",
                "Red"
            };

            var colorsPicker = new Picker
            {
                ItemsSource  = colors,
                WidthRequest = 150
            };

            colorsPicker.SelectedIndex = 0;

            colorsPicker.SelectedIndexChanged += (s, e) =>
            {
                var selectedIndex = colorsPicker.SelectedIndex;

                switch (selectedIndex)
                {
                case 0:
                    indicatorView.IndicatorColor = Colors.Black;
                    break;

                case 1:
                    indicatorView.IndicatorColor = Colors.Blue;
                    break;

                case 2:
                    indicatorView.IndicatorColor = Colors.Red;
                    break;
                }
            };

            stckColors.Children.Add(colorsPicker);

            layout.Children.Add(stckColors);

            var stckTemplate = new StackLayout {
                Orientation = StackOrientation.Horizontal
            };

            stckTemplate.Children.Add(new Label {
                VerticalOptions = LayoutOptions.Center, Text = "IndicatorTemplate"
            });

            var templates = new List <string>
            {
                "Circle",
                "Square",
                "Template"
            };

            var templatePicker = new Picker
            {
                ItemsSource  = templates,
                WidthRequest = 150,
                TextColor    = Colors.Black
            };

            templatePicker.SelectedIndexChanged += (s, e) =>
            {
                var selectedIndex = templatePicker.SelectedIndex;

                switch (selectedIndex)
                {
                case 0:
                    indicatorView.IndicatorTemplate = null;
                    indicatorView.IndicatorsShape   = IndicatorShape.Circle;
                    break;

                case 1:
                    indicatorView.IndicatorTemplate = null;
                    indicatorView.IndicatorsShape   = IndicatorShape.Square;
                    break;

                case 2:
                    indicatorView.IndicatorTemplate = ExampleTemplates.IndicatorTemplate();
                    break;
                }
            };

            templatePicker.SelectedIndex = 0;

            stckTemplate.Children.Add(templatePicker);

            layout.Children.Add(stckTemplate);

            var stckSize = new StackLayout {
                Orientation = StackOrientation.Horizontal
            };

            stckSize.Children.Add(new Label {
                VerticalOptions = LayoutOptions.Center, Text = "Indicator Size"
            });

            //indicatorView.IndicatorSize = 25;

            var sizeSlider = new Slider
            {
                WidthRequest = 150,
                Value        = indicatorView.IndicatorSize,
                Maximum      = 50,
            };

            sizeSlider.ValueChanged += (s, e) =>
            {
                var indicatorSize = sizeSlider.Value;
                indicatorView.IndicatorSize = indicatorSize;
            };

            stckSize.Children.Add(sizeSlider);

            layout.Children.Add(stckSize);

            Grid.SetRow(generator, 0);
            Grid.SetRow(stckColors, 1);
            Grid.SetRow(stckTemplate, 2);
            Grid.SetRow(stckSize, 3);
            Grid.SetRow(_carouselView, 4);
            Grid.SetRow(indicatorView, 6);

            var layoutBtn = new StackLayout
            {
                Orientation       = StackOrientation.Horizontal,
                HorizontalOptions = LayoutOptions.Center,
            };

            var btnRemove = new Button
            {
                Text            = "DEL First",
                FontSize        = 8,
                AutomationId    = "btnRemoveFirst",
                BackgroundColor = Colors.LightGray,
                Padding         = new Thickness(5),
                Command         = new Command(() =>
                {
                    var items = (_carouselView.ItemsSource as ObservableCollection <CollectionViewGalleryTestItem>);
                    items.Remove(items[0]);
                })
            };

            _btnPrev = new Button
            {
                Text            = "Prev",
                FontSize        = 8,
                AutomationId    = "btnPrev",
                BackgroundColor = Colors.LightGray,
                Padding         = new Thickness(5),
                Command         = new Command(() =>
                {
                    _carouselView.Position--;
                }, () =>
                {
                    return(_carouselView.Position > 0);
                })
            };

            _btnNext = new Button
            {
                Text            = "Next",
                FontSize        = 8,
                AutomationId    = "btnNext",
                BackgroundColor = Colors.LightGray,
                Padding         = new Thickness(5),
                Command         = new Command(() =>
                {
                    _carouselView.Position++;
                }, () =>
                {
                    var items = (_carouselView.ItemsSource as ObservableCollection <CollectionViewGalleryTestItem>);
                    return(_carouselView.Position < items.Count - 1);
                })
            };

            var btnRemoveLast = new Button
            {
                Text            = "DEL Last",
                FontSize        = 8,
                AutomationId    = "btnRemoveLast",
                BackgroundColor = Colors.LightGray,
                Padding         = new Thickness(5),
                Command         = new Command(() =>
                {
                    var items         = (_carouselView.ItemsSource as ObservableCollection <CollectionViewGalleryTestItem>);
                    var indexToRemove = items.Count - 1;
                    items.Remove(items[indexToRemove]);
                })
            };

            layoutBtn.Children.Add(btnRemove);
            layoutBtn.Children.Add(_btnPrev);
            layoutBtn.Children.Add(_btnNext);
            layoutBtn.Children.Add(btnRemoveLast);

            layout.Children.Add(layoutBtn);
            Grid.SetRow(layoutBtn, 5);
            Content = layout;
        }