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127 changes: 127 additions & 0 deletions
127
src/Controls/samples/Controls.Sample/Pages/Layouts/LayoutUpdatesPage.cs
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,127 @@ | ||
| using Microsoft.Maui; | ||
| using Microsoft.Maui.Controls; | ||
| using Microsoft.Maui.Graphics; | ||
| using Shapes = Microsoft.Maui.Controls.Shapes; | ||
|
|
||
| namespace Maui.Controls.Sample.Pages | ||
| { | ||
| public class LayoutUpdatesPage : Base.BasePage | ||
| { | ||
| public LayoutUpdatesPage() | ||
| { | ||
| var root = new GridLayout() { Margin = 40, BackgroundColor = Colors.Beige }; | ||
|
|
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| root.RowDefinitions = new RowDefinitionCollection() | ||
| { | ||
| new RowDefinition(){ Height = GridLength.Auto }, | ||
| new RowDefinition(){ Height = GridLength.Auto }, | ||
| new RowDefinition(){ Height = GridLength.Auto }, | ||
| new RowDefinition(){ Height = GridLength.Auto } | ||
| }; | ||
|
|
||
| root.ColumnDefinitions = new ColumnDefinitionCollection() | ||
| { | ||
| new ColumnDefinition(){ Width = GridLength.Star }, | ||
| new ColumnDefinition(){ Width = GridLength.Star }, | ||
| }; | ||
|
|
||
| var addButton = new Button { Text = "Add" }; | ||
| root.Add(addButton); | ||
|
|
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| var removeButton = new Button { Text = "Remove" }; | ||
| root.Add(removeButton); | ||
| root.SetColumn(removeButton, 1); | ||
|
|
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| var insertButton = new Button { Text = "Insert" }; | ||
| root.Add(insertButton); | ||
| root.SetRow(insertButton, 1); | ||
|
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| var clearButton = new Button { Text = "Clear" }; | ||
| root.Add(clearButton); | ||
| root.SetColumn(clearButton, 1); | ||
| root.SetRow(clearButton, 1); | ||
|
|
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| var updateButton = new Button { Text = "Update" }; | ||
| root.Add(updateButton); | ||
| root.SetRow(updateButton, 2); | ||
|
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| var stack = new VerticalStackLayout(); | ||
|
|
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| double shapeWidth = 200; | ||
| double shapeHeight = 80; | ||
| double overlap = -20; | ||
| double leftMarginIncrement = 20; | ||
|
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| var r1 = new Shapes.Rectangle() { WidthRequest = shapeWidth, HeightRequest = shapeHeight, Fill = new SolidColorBrush(NextColor()), Margin = new Thickness(0, 0, 0, 0) }; | ||
| var r2 = new Shapes.Rectangle() { WidthRequest = shapeWidth, HeightRequest = shapeHeight, Fill = new SolidColorBrush(NextColor()), Margin = new Thickness(leftMarginIncrement, overlap, 0, 0) }; | ||
|
|
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| stack.Add(r1); | ||
| stack.Add(r2); | ||
|
|
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| root.Add(stack); | ||
| root.SetRow(stack, 3); | ||
| root.SetColumnSpan(stack, 2); | ||
|
|
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| addButton.Clicked += (sender, args) => { | ||
| var left = leftMarginIncrement * stack.Count; | ||
| var rect = new Shapes.Rectangle() { WidthRequest = shapeWidth, HeightRequest = shapeHeight, Fill = new SolidColorBrush(NextColor()), Margin = new Thickness(left, overlap, 0, 0) }; | ||
| stack.Add(rect); | ||
| }; | ||
|
|
||
| insertButton.Clicked += (sender, args) => { | ||
| if (stack.Count < 2) | ||
| { | ||
| return; | ||
| } | ||
| var left = leftMarginIncrement * stack.Count; | ||
| var rect = new Shapes.Rectangle() { WidthRequest = shapeWidth, HeightRequest = shapeHeight, Fill = new SolidColorBrush(NextColor()), Margin = new Thickness(left, overlap, 0, 0) }; | ||
| stack.Insert(1, rect); | ||
| }; | ||
|
|
||
| clearButton.Clicked += (sender, args) => { | ||
| stack.Clear(); | ||
| }; | ||
|
|
||
| removeButton.Clicked += (sender, args) => { | ||
| if (stack.Count > 0) | ||
| { | ||
| stack.RemoveAt(stack.Count - 1); | ||
| } | ||
| }; | ||
|
|
||
| updateButton.Clicked += (sender, args) => { | ||
| if (stack.Count > 0) | ||
| { | ||
| var left = leftMarginIncrement * stack.Count; | ||
| var rect = new Shapes.Rectangle() { WidthRequest = shapeWidth, HeightRequest = shapeHeight, Fill = new SolidColorBrush(NextColor()), Margin = new Thickness(left, overlap, 0, 0) }; | ||
| stack[0] = rect; | ||
| } | ||
| }; | ||
|
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| Content = root; | ||
| } | ||
|
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| int _colorIndex; | ||
|
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| Color[] _colors = new Color[] | ||
| { | ||
| Colors.Red, Colors.Blue, Colors.Green, Colors.Yellow, Colors.Orange, Colors.Purple | ||
| }; | ||
|
|
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| Color NextColor() | ||
| { | ||
| var color = _colors[_colorIndex]; | ||
|
|
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| _colorIndex += 1; | ||
| if (_colorIndex >= _colors.Length) | ||
| { | ||
| _colorIndex = 0; | ||
| } | ||
|
|
||
| return color; | ||
| } | ||
| } | ||
| } |
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