public OldMainPage()
{
Grid layout = new Grid {
Padding = new Thickness(5, 0),
RowSpacing = 1,
ColumnSpacing = 1,
BackgroundColor = Color.Black,
};
// Setup the grid 4x6
layout.RowDefinitions.Add(new RowDefinition {
Height = new GridLength(2, GridUnitType.Star)
});
layout.RowDefinitions.Add(new RowDefinition {
Height = new GridLength(1, GridUnitType.Star)
});
layout.RowDefinitions.Add(new RowDefinition {
Height = new GridLength(1, GridUnitType.Star)
});
layout.RowDefinitions.Add(new RowDefinition {
Height = new GridLength(1, GridUnitType.Star)
});
layout.RowDefinitions.Add(new RowDefinition {
Height = new GridLength(1, GridUnitType.Star)
});
layout.RowDefinitions.Add(new RowDefinition {
Height = new GridLength(1, GridUnitType.Star)
});
layout.ColumnDefinitions.Add(new ColumnDefinition {
Width = new GridLength(1, GridUnitType.Star)
});
layout.ColumnDefinitions.Add(new ColumnDefinition {
Width = new GridLength(1, GridUnitType.Star)
});
layout.ColumnDefinitions.Add(new ColumnDefinition {
Width = new GridLength(1, GridUnitType.Star)
});
layout.ColumnDefinitions.Add(new ColumnDefinition {
Width = new GridLength(1, GridUnitType.Star)
});
this.resultText = new Label {
Font = Font.SystemFontOfSize(48, FontAttributes.Bold),
BackgroundColor = Color.Black,
TextColor = Color.White,
XAlign = TextAlignment.End,
YAlign = TextAlignment.Center,
LineBreakMode = LineBreakMode.NoWrap,
};
Grid.SetColumnSpan(this.resultText, 4);
layout.Children.Add(this.resultText);
// Create the numbers.
layout.Children.Add(CreateNumberButton("7", 1, 0));
layout.Children.Add(CreateNumberButton("8", 1, 1));
layout.Children.Add(CreateNumberButton("9", 1, 2));
layout.Children.Add(CreateNumberButton("4", 2, 0));
layout.Children.Add(CreateNumberButton("5", 2, 1));
layout.Children.Add(CreateNumberButton("6", 2, 2));
layout.Children.Add(CreateNumberButton("1", 3, 0));
layout.Children.Add(CreateNumberButton("2", 3, 1));
layout.Children.Add(CreateNumberButton("3", 3, 2));
Button zero = CreateNumberButton("0", 4, 0);
Grid.SetColumnSpan(zero, 3);
layout.Children.Add(zero);
// Create the operators
layout.Children.Add(CreateOperatorButton("/", 1));
layout.Children.Add(CreateOperatorButton("X", 2));
layout.Children.Add(CreateOperatorButton("-", 3));
layout.Children.Add(CreateOperatorButton("+", 4));
// Create the clear button.
Button clear = new Button()
{
Text = "C",
BackgroundColor = Color.FromRgb(0x80, 0x80, 0x80),
TextColor = Color.White,
Font = Font.SystemFontOfSize(36),
BorderRadius = 0,
};
Grid.SetRow(clear, 5);
clear.Clicked += OnClear;
layout.Children.Add(clear);
// And the equals.
Button equals = new Button()
{
Text = "=",
BackgroundColor = Color.FromHex("#FFA500"),
TextColor = Color.White,
Font = Font.SystemFontOfSize(36),
BorderRadius = 0,
};
Grid.SetRow(equals, 5);
Grid.SetColumn(equals, 1);
Grid.SetColumnSpan(equals, 3);
equals.Clicked += OnCalculate;
layout.Children.Add(equals);
OnClear(null, EventArgs.Empty);
Content = layout;
}