68 строки
2.4 KiB
C#
68 строки
2.4 KiB
C#
using Android.Content.Res;
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using Android.Util;
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using Xamarin.Forms.Internals;
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namespace Xamarin.Forms.Platform.Android
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{
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internal class ResourcesProvider : ISystemResourcesProvider
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{
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ResourceDictionary _dictionary;
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public IResourceDictionary GetSystemResources()
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{
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_dictionary = new ResourceDictionary();
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UpdateStyles();
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return _dictionary;
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}
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public Style GetStyle(int style)
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{
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var result = new Style(typeof(Label));
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double fontSize = 0;
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string fontFamily = null;
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global::Android.Graphics.Color defaultColor = global::Android.Graphics.Color.Argb(0, 0, 0, 0);
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global::Android.Graphics.Color androidColor = defaultColor;
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var context = Forms.ApplicationContext;
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using (var value = new TypedValue())
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{
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if (context.Theme.ResolveAttribute(style, value, true))
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{
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var styleattrs = new[] { global::Android.Resource.Attribute.TextSize, global::Android.Resource.Attribute.FontFamily, global::Android.Resource.Attribute.TextColor };
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using (TypedArray array = context.ObtainStyledAttributes(value.ResourceId, styleattrs))
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{
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fontSize = context.FromPixels(array.GetDimensionPixelSize(0, -1));
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fontFamily = array.GetString(1);
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androidColor = array.GetColor(2, defaultColor);
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}
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}
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}
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if (fontSize > 0)
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result.Setters.Add(new Setter { Property = Label.FontSizeProperty, Value = fontSize });
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if (!string.IsNullOrEmpty(fontFamily))
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result.Setters.Add(new Setter { Property = Label.FontFamilyProperty, Value = fontFamily });
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if (androidColor != defaultColor)
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{
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result.Setters.Add(new Setter { Property = Label.TextColorProperty, Value = Color.FromRgba(androidColor.R, androidColor.G, androidColor.B, androidColor.A) });
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}
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return result;
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}
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void UpdateStyles()
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{
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_dictionary[Device.Styles.BodyStyleKey] = new Style(typeof(Label)); // do nothing, its fine
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_dictionary[Device.Styles.TitleStyleKey] = GetStyle(global::Android.Resource.Attribute.TextAppearanceLarge);
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_dictionary[Device.Styles.SubtitleStyleKey] = GetStyle(global::Android.Resource.Attribute.TextAppearanceMedium);
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_dictionary[Device.Styles.CaptionStyleKey] = GetStyle(global::Android.Resource.Attribute.TextAppearanceSmall);
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_dictionary[Device.Styles.ListItemTextStyleKey] = GetStyle(global::Android.Resource.Attribute.TextAppearanceListItem);
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_dictionary[Device.Styles.ListItemDetailTextStyleKey] = GetStyle(global::Android.Resource.Attribute.TextAppearanceListItemSmall);
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}
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}
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} |