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using Android.Content;
using Android.Content.Res;
using Android.Util;
namespace Xamarin.Forms.Platform.Android
{
internal class ResourcesProvider : ISystemResourcesProvider
{
ResourceDictionary _dictionary;
public IResourceDictionary GetSystemResources()
{
_dictionary = new ResourceDictionary();
UpdateStyles();
return _dictionary;
}
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;
Context context = Forms.Context;
using (var value = new TypedValue())
{
if (context.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 = context.ObtainStyledAttributes(value.ResourceId, styleattrs))
{
fontSize = context.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;
}
void UpdateStyles()
{
_dictionary[Device.Styles.BodyStyleKey] = new Style(typeof(Label)); // do nothing, its fine
_dictionary[Device.Styles.TitleStyleKey] = GetStyle(global::Android.Resource.Attribute.TextAppearanceLarge);
_dictionary[Device.Styles.SubtitleStyleKey] = GetStyle(global::Android.Resource.Attribute.TextAppearanceMedium);
_dictionary[Device.Styles.CaptionStyleKey] = GetStyle(global::Android.Resource.Attribute.TextAppearanceSmall);
_dictionary[Device.Styles.ListItemTextStyleKey] = GetStyle(global::Android.Resource.Attribute.TextAppearanceListItem);
_dictionary[Device.Styles.ListItemDetailTextStyleKey] = GetStyle(global::Android.Resource.Attribute.TextAppearanceListItemSmall);
}
}
}
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