public static ModifiedOpacity <T> Opacity <T> (this T view, double opacity) where T : View
{
var opaqueOpacityMetadata = SwiftType.Of(typeof(ModifiedOpacity <T>)) !;
var result = TaggedPointer.AllocHGlobal(opaqueOpacityMetadata.NativeDataSize);
try {
using (var viewHandle = view.GetSwiftHandle()) {
var viewType = viewHandle.SwiftType;
ViewOpacity(result.Pointer, viewHandle.Pointer, opacity, viewType.Metadata, viewType.GetProtocolConformance(SwiftUILib.ViewProtocol));
return(new ModifiedOpacity <T> (result));
}
} catch {
result.Dispose();
throw;
}
}
public static ModifiedBackground <TView, TBackground> Background <TView, TBackground> (this TView view, TBackground background)
where TView : View
where TBackground : View
{
var opaqueBackgroundMetadata = SwiftType.Of(typeof(ModifiedBackground <TView, TBackground>)) !;
var result = TaggedPointer.AllocHGlobal(opaqueBackgroundMetadata.NativeDataSize);
try {
using (var viewHandle = view.GetSwiftHandle())
using (var backgroundHandle = background.GetSwiftHandle())
{
var viewType = viewHandle.SwiftType;
var backgroundType = backgroundHandle.SwiftType;
// Note : When passing 2 generic parameters (in this case TView and TBackground) the order is IMPORTANT. The order is Generic1Pointer, Generic2Pointer, Generic1Metadata, Generic2Metadata, Generic1Prototcol, Generic2Prototcol
ViewBackground(result.Pointer, viewHandle.Pointer, backgroundHandle.Pointer, viewType.Metadata, backgroundType.Metadata, viewType.GetProtocolConformance(SwiftUILib.ViewProtocol), backgroundType.GetProtocolConformance(SwiftUILib.ViewProtocol));
return(new ModifiedBackground <TView, TBackground> (result));
}
} catch {
result.Dispose();
throw;
}
}
internal ModifiedBackground(TaggedPointer taggedPointer)
: base(taggedPointer)
{
}
internal ModifiedOpacity(TaggedPointer taggedPointer)
: base(taggedPointer)
{
}
/// <summary>
/// Only to be used for opaque <c>some View</c> return types.
/// </summary>
protected View(TaggedPointer data)
{
this.data = data;
}