bool TryGetTextAppearance(int appearance, out double val)
{
val = 0;
try
{
using (var value = new TypedValue())
{
_applicationContext ??= global::Android.App.Application.Context.ApplicationContext;
if (_applicationContext.Theme.ResolveAttribute(appearance, value, true))
{
var textSizeAttr = new[] { AndroidResource.Attribute.TextSize };
const int indexOfAttrTextSize = 0;
using (TypedArray array = _applicationContext.ObtainStyledAttributes(value.Data, textSizeAttr))
{
val = _applicationContext.FromPixels(array.GetDimensionPixelSize(indexOfAttrTextSize, -1));
return(true);
}
}
}
}
catch (Exception ex)
{
Application.Current?.FindMauiContext()?.CreateLogger <FontNamedSizeService>()?
.LogWarning(ex, "Error retrieving text appearance");
}
return(false);
}
public Style GetStyle(int style)
{
var result = new Style(typeof(Label));
double fontSize = 0;
string fontFamily = null;
global::Android.Graphics.Color defaultColor = global::Android.Graphics.Color.Argb(0, 0, 0, 0);
global::Android.Graphics.Color androidColor = defaultColor;
_applicationContext ??= global::Android.App.Application.Context.ApplicationContext;
using (var value = new TypedValue())
{
if (_applicationContext.Theme.ResolveAttribute(style, value, true))
{
var styleattrs = new[] { global::Android.Resource.Attribute.TextSize, global::Android.Resource.Attribute.FontFamily, global::Android.Resource.Attribute.TextColor };
using (TypedArray array = _applicationContext.ObtainStyledAttributes(value.ResourceId, styleattrs))
{
fontSize = _applicationContext.FromPixels(array.GetDimensionPixelSize(0, -1));
fontFamily = array.GetString(1);
androidColor = array.GetColor(2, defaultColor);
}
}
}
if (fontSize > 0)
{
result.Setters.Add(new Setter {
Property = Label.FontSizeProperty, Value = fontSize
});
}
if (!string.IsNullOrEmpty(fontFamily))
{
result.Setters.Add(new Setter {
Property = Label.FontFamilyProperty, Value = fontFamily
});
}
if (androidColor != defaultColor)
{
result.Setters.Add(new Setter {
Property = Label.TextColorProperty, Value = Color.FromRgba(androidColor.R, androidColor.G, androidColor.B, androidColor.A)
});
}
return(result);
}