private void Rebind()
{
if (!enabled || DurationTextView == null)
{
return;
}
var durationShown = digitsEntered > 0 ? newDuration : oldDuration;
var durationText = durationShown.ToString();
var durationSpannable = new SpannableString(durationText);
durationSpannable.SetSpan(
new ForegroundColorSpan(Color.LightGray),
0, durationSpannable.Length(),
SpanTypes.InclusiveExclusive);
if (digitsEntered > 0)
{
// Divider
var sepIdx = durationText.IndexOf(":", StringComparison.Ordinal);
if (sepIdx >= 0)
{
durationSpannable.SetSpan(
new ForegroundColorSpan(Color.Black),
sepIdx, sepIdx + 1,
SpanTypes.InclusiveExclusive);
}
// Color entered minutes
durationSpannable.SetSpan(
new ForegroundColorSpan(Color.Black),
durationText.Length - (Math.Min(digitsEntered, 2)), durationText.Length,
SpanTypes.InclusiveExclusive);
// Color entered hours
if (digitsEntered > 2)
{
durationSpannable.SetSpan(
new ForegroundColorSpan(Color.Black),
2 - (digitsEntered - 2), 2,
SpanTypes.InclusiveExclusive);
}
}
DurationTextView.SetText(durationSpannable, TextView.BufferType.Spannable);
int num = 0;
foreach (var numButton in numButtons)
{
numButton.Enabled = digitsEntered < 4;
num += 1;
}
DeleteImageButton.Enabled = digitsEntered > 0;
Add5Button.Enabled = newDuration.IsValid && newDuration.AddMinutes(5).IsValid;
Add30Button.Enabled = newDuration.IsValid && newDuration.AddMinutes(30).IsValid;
OkButton.Enabled = digitsEntered > 0 && newDuration.IsValid;
}