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using Android.Content.Res;
using Android.Widget;
namespace Xamarin.Forms.Platform.Android
{
/// <summary>
/// Handles color state management for the TextColor property
/// for Button, Picker, TimePicker, and DatePicker
/// </summary>
internal class TextColorSwitcher
{
static readonly int[][] s_colorStates = { new[] { global::Android.Resource.Attribute.StateEnabled }, new[] { -global::Android.Resource.Attribute.StateEnabled } };
readonly ColorStateList _defaultTextColors;
Color _currentTextColor;
public TextColorSwitcher(ColorStateList textColors)
{
_defaultTextColors = textColors;
}
public void UpdateTextColor(TextView control, Color color)
{
if (color == _currentTextColor)
return;
_currentTextColor = color;
if (color.IsDefault)
control.SetTextColor(_defaultTextColors);
else
{
// Set the new enabled state color, preserving the default disabled state color
int defaultDisabledColor = _defaultTextColors.GetColorForState(s_colorStates[1], color.ToAndroid());
control.SetTextColor(new ColorStateList(s_colorStates, new[] { color.ToAndroid().ToArgb(), defaultDisabledColor }));
}
}
}
}
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