public static int GetColor(Context context, int color)
{
var tv = new Android.Util.TypedValue();
context.Theme.ResolveAttribute(color, tv, true);
return(tv.Data);
}
InputStreamInvoker GetResourceStream(int resId, Android.Util.TypedValue outValue)
{
Application.Context.Resources.GetValue(resId, outValue, true);
IntPtr sp = OpenNonAsset(Application.Context.Resources.Assets, outValue.AssetCookie, outValue.String.ToString(), 2 /* AssetManager.ACCESS_STREAMING */);
Java.IO.InputStream s = Java.Lang.Object.GetObject <Java.IO.InputStream> (sp, JniHandleOwnership.TransferLocalRef);
return(new InputStreamInvoker(s));
}
public void DrawableFromResStream_ShouldBeTypeNinePatchDrawable(int resId, string name)
{
var value = new Android.Util.TypedValue();
InputStreamInvoker si = GetResourceStream(resId, value);
var d = Drawable.CreateFromResourceStream(Application.Context.Resources, value, si, value.String.ToString(), null);
Assert.IsNotNull(d, $"An image should have been retrieved from resource `{name}`.");
Assert.IsNotNull(d as NinePatchDrawable, $"The drawable created from resource `{name}` should be a NinePatchDrawable.");
}
public void BitmapFromDecodeResStream_ShouldContainNinePatchChunk(int resId, string name)
{
var value = new Android.Util.TypedValue();
InputStreamInvoker si = GetResourceStream(resId, value);
Bitmap bm = BitmapFactory.DecodeResourceStream(Application.Context.Resources, value, si, null, null);
byte[] chunk = bm.GetNinePatchChunk();
Assert.IsTrue(NinePatch.IsNinePatchChunk(chunk),
$"Bitmap decoded from resource stream with id `{name}` did not contain a valid NinePatch chunk.");
}
public static int GetSelectableItemBackground(Context context)
{
if (selectableItemBackground == 0)
{
var outValue = new Android.Util.TypedValue();
context.Theme.ResolveAttribute(Android.Resource.Attribute.SelectableItemBackground, outValue, true);
selectableItemBackground = outValue.ResourceId;
}
return(selectableItemBackground);
}
public static bool TryResolveAttribute(this Resources.Theme?theme, int id, out float?value)
{
using (var tv = new Android.Util.TypedValue())
{
if (theme != null && theme.ResolveAttribute(id, tv, resolveRefs: true))
{
value = tv.Data;
return(true);
}
}
value = null;
return(false);
}
//TODO RM: Ensure this works with pre 5.0 like 4.4
public static Android.Util.TypedValue GetTypedValueFromActv(ContextThemeWrapper activity)
{
Android.Util.TypedValue typedValue = new Android.Util.TypedValue();
try
{
return(activity.Theme.ResolveAttribute(Android.Resource.Attribute.SelectableItemBackground, typedValue, true)
? typedValue
: null);
}
catch (Exception e)
{
_logger.Error($"An Error occurred while retrieving the SelectableItemBackground used for transparent buttons. {e.Message}");
return(null);
}
}
/// <summary>
/// フリッカスタイルをセットします。
/// </summary>
/// <param name="onOff"></param>
private void SetFlickerStyle(bool onOff)
{
var rootLayout = FindViewById <LinearLayout>(Resource.Id.rootLayout);
if (flickOn)
{
rootLayout.SetBackgroundColor(Constants.FLICKER_COLOR);
}
else
{
var attrValue = new Android.Util.TypedValue();
Theme.ResolveAttribute(Android.Resource.Attribute.ColorBackground, attrValue, true);
rootLayout.SetBackgroundColor(Resources.GetColor(attrValue.ResourceId));
}
}
private FrameworkElement GetNativeSplashScreen(SplashScreen splashScreen)
{
try
{
var activity = ContextHelper.Current as Activity;
// Get the theme's windowBackground (which we use as splash screen)
var attribute = new Android.Util.TypedValue();
activity?.Theme.ResolveAttribute(Android.Resource.Attribute.WindowBackground, attribute, true);
var windowBackgroundResourceId = attribute.ResourceId;
// Get the splash screen size
var splashScreenSize = GetSplashScreenSize(activity);
// Create the splash screen surface
var splashView = new Android.Views.View(activity);
splashView.SetBackgroundResource(attribute.ResourceId);
// We use a Canvas to ensure it's clipped but not resized (important when device has soft-keys)
var element = new Canvas
{
// We set a background to prevent touches from going through
Background = SolidColorBrushHelper.Transparent,
// We use a Border to ensure proper layout
Children =
{
new Border()
{
Width = splashScreenSize.Width,
Height = splashScreenSize.Height,
Child = VisualTreeHelper.AdaptNative(splashView),
}
},
};
return(element);
}
catch (Exception e)
{
typeof(ExtendedSplashScreen).Log().LogError(0, e, "Error while getting native splash screen.");
return(null);
}
}
public static void SetLegislatorContactMthdVisibility(View imageButton, ContactMethod contactMethod, Android.Util.TypedValue selectableItemBackground)
{
imageButton.Visibility = contactMethod.IsEmpty
? ViewStates.Gone
: ViewStates.Visible;
if (selectableItemBackground != null)
{
imageButton.SetBackgroundResource(selectableItemBackground.ResourceId);
}
}
