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Issue1724.cs
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Issue1724.cs
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using Xamarin.Forms.CustomAttributes;
using Xamarin.Forms.Internals;
using System;
using System.Linq;
using System.Threading;
using System.Collections.Generic;
using Xamarin.Forms.PlatformConfiguration;
using Xamarin.Forms.PlatformConfiguration.AndroidSpecific;
using System.Threading.Tasks;
namespace Xamarin.Forms.Controls.Issues
{
#if UITEST
[NUnit.Framework.Category(Core.UITests.UITestCategories.Github5000)]
#endif
[Preserve(AllMembers = true)]
[Issue(IssueTracker.Github, 1724, "[Enhancement] ImageButton", PlatformAffected.All)]
public class Issue1724 : TestContentPage
{
bool animation = false;
protected override void Init()
{
int sizes = 200;
var radius = new ImageButton()
{
BorderColor = Color.Brown,
BorderWidth = 5,
BackgroundColor = Color.Yellow,
Aspect = Aspect.Fill,
CornerRadius = 10,
Source = "coffee.png",
HorizontalOptions = LayoutOptions.Center,
HeightRequest = sizes,
WidthRequest = sizes,
};
radius.On<Android>().SetShadowColor(Color.Green);
radius.On<Android>().SetIsShadowEnabled(true);
radius.On<Android>().SetShadowOffset(new Size(25, 25));
var radiusBackground = new ImageButton()
{
BorderColor = Color.Brown,
BorderWidth = 5,
Source = "coffee.png",
CornerRadius = 10,
HorizontalOptions = LayoutOptions.Center,
BackgroundColor = Color.Pink,
HeightRequest = sizes,
WidthRequest = sizes
};
radiusBackground.On<Android>().SetShadowColor(Color.Green);
radiusBackground.On<Android>().SetIsShadowEnabled(true);
radiusBackground.On<Android>().SetShadowOffset(new Size(5, 5));
StackLayout layout = new StackLayout()
{
Children =
{
new Label(){ Text = "No padding?" },
new ImageButton()
{
Source = "coffee.png",
BackgroundColor = Color.GreenYellow
},
new Label(){ Text = "Do I have left padding? I should have left padding." },
new ImageButton()
{
Source = "coffee.png",
BackgroundColor = Color.Green,
Padding = new Thickness(100, 0, 0, 0)
},
new Label(){ Text = "Do I have top padding? I should have top padding." },
new ImageButton()
{
Source = "coffee.png",
BackgroundColor = Color.LawnGreen,
Padding = new Thickness(0, 30, 0, 0)
},
new Label(){ Text = "Do I have right padding? I should have right padding."},
new ImageButton()
{
Source = "coffee.png",
BackgroundColor = Color.LightGreen,
Padding = new Thickness(0, 0, 100, 0)
},
new Label(){ Text = "Do I have bottom padding? I should have bottom padding." },
new ImageButton()
{
Source = "coffee.png",
BackgroundColor = Color.ForestGreen,
Padding = new Thickness(0, 0, 0, 30)
},
new Label(){ Text = "Do you see image from a Uri?" },
new ImageButton()
{
Source = "https://raw.githubusercontent.com/xamarin/Xamarin.Forms/master/Xamarin.Forms.Controls/coffee.png",
BackgroundColor = Color.ForestGreen
},
new Label(){ Text = "Invalid Image Uri just to test it doesn't crash" },
new ImageButton()
{
Source = "http://xamarin.com/imginvalidf@#$R(P&fb.png",
BackgroundColor = Color.ForestGreen
},
new Label(){ Text = "Aspect: Aspect.Fill with shadows" },
radius,
new Label(){ Text = "Aspect: Aspect.AspectFit with shadows" },
radiusBackground,
new Label(){ Text = "BorderColor:Color.Green, BorderWidth:10" },
new ImageButton()
{
Source = "coffee.png",
HorizontalOptions = LayoutOptions.Center,
HeightRequest = sizes,
WidthRequest = sizes,
BorderColor = Color.Green,
BorderWidth = 10
},
new Label(){ Text = "BorderColor:Color.Green, BorderWidth:10, Aspect:Aspect.Fill" },
new ImageButton()
{
Source = "coffee.png",
HorizontalOptions = LayoutOptions.Center,
HeightRequest = sizes,
WidthRequest = sizes,
BorderColor = Color.Green,
BorderWidth = 10,
Aspect = Aspect.Fill
},
new Label(){ Text = "BackgroundColor:Green" },
new ImageButton()
{
Source = "coffee.png",
HorizontalOptions = LayoutOptions.Center,
HeightRequest = sizes,
WidthRequest = sizes,
BackgroundColor = Color.Green
},
new Label(){ Text = "BorderWidth: 5, CornerRadius:10, BorderColor:Brown" },
new ImageButton()
{
BorderColor = Color.Brown,
BorderWidth = 5,
Source = "coffee.png",
CornerRadius = 10,
HorizontalOptions = LayoutOptions.Center,
HeightRequest = sizes,
WidthRequest = sizes
},
new Label(){ Text = $"CornerRadius:{sizes / 2}, BorderWidth: 5, BorderColor:Red" },
new ImageButton()
{
Source = "coffee.png",
HorizontalOptions = LayoutOptions.Center,
BorderColor = Color.Red,
BorderWidth = 5,
CornerRadius = sizes / 2,
HeightRequest = sizes,
WidthRequest = sizes
},
}
};
var buttons = layout.Children.OfType<ImageButton>();
layout.Children.Insert(0, ActionGrid(buttons.ToList()));
PaddingAnimation(buttons);
Content = new ScrollView() { Content = layout };
}
Grid ActionGrid(List<ImageButton> buttons)
{
ImageButton firstButton = buttons.FirstOrDefault();
Grid actionGrid = new Grid();
actionGrid.AddChild(new Button()
{
Text = "Add Right",
Command = new Command(() =>
{
var button = firstButton;
button.Padding = new Thickness(button.Padding.Left, 0, button.Padding.Right + 10, 0);
})
}, 0, 0);
actionGrid.AddChild(new Button()
{
Text = "Add Left",
Command = new Command(() =>
{
var button = firstButton;
button.Padding = new Thickness(button.Padding.Left + 10, 0, button.Padding.Right, 0);
})
}, 0, 1);
actionGrid.AddChild(new Button()
{
Text = "Animation",
Command = new Command(() => animation = !animation)
}, 1, 1);
actionGrid.AddChild(new Button()
{
Text = "Add Top",
Command = new Command(() =>
{
var button = firstButton;
button.Padding = new Thickness(0, button.Padding.Top + 10, 0, button.Padding.Bottom);
})
}, 2, 0);
actionGrid.AddChild(new Button()
{
Text = "Add Bottom",
Command = new Command(() =>
{
var button = firstButton;
button.Padding = new Thickness(0, button.Padding.Top, 0, button.Padding.Bottom + 10);
})
}, 2, 1);
return actionGrid;
}
void PaddingAnimation(IEnumerable<ImageButton> buttons)
{
Task.Run(async () =>
{
int increment = 1;
int current = 0;
int max = 15;
int FPS = 30;
int sleep = 1000 / FPS;
while (true)
{
await Task.Delay(sleep);
if (!animation)
continue;
current += increment;
if (current > max || current < 0)
{
increment *= -1;
current += increment * 2;
}
Device.BeginInvokeOnMainThread(() =>
{
foreach (var button in buttons)
{
var padding = button.Padding;
button.Padding = padding = new Thickness(
padding.Left + increment,
padding.Top + increment,
padding.Right + increment,
padding.Bottom + increment);
}
});
}
});
}
}
}