/// <summary>
/// Sets the position of the button afterwards for all android versions below Lollipop, where the calculated fabSize is not correct.
/// This repositioning cannot be done in the OnSizeAllocated method because the button have to be
/// added first to get the right button width and height.
/// </summary>
private void SetButtonPosition(double width)
{
Button.SizeChanged += (sender, e) =>
{
var buttonRect = new Rectangle
{
Top = Height - bottomSheetSize - Button.Height / 2,
Size = new Size(Button.Width, Button.Height),
X = width - buttonRightPadding - Button.Width
};
Button.LayoutTo(buttonRect, 0);
};
}
/// <summary>
/// Layout the bottom sheet to its extended state, with animation.
/// </summary>
/// <returns>The task.</returns>
private async Task ExtendBottomSheet()
{
Rectangle bottomSheetRect = new Rectangle
{
Left = 0,
Top = Height * (1 - bottomSheetExtensionFraction),
Size = new Size(Width, Height * bottomSheetExtensionFraction)
};
Rectangle buttonRect = new Rectangle
{
Top = bottomSheetRect.Top - Button.Height / 2,
Size = new Size(Button.Width, Button.Height),
X = Button.X
};
await Task.WhenAll(BottomSheetContentView.LayoutTo(bottomSheetRect), Button.LayoutTo(buttonRect), Button.RotateXTo(180));
bottomSheetState = BottomSheetState.Extended;
}
