static Func <IntPtr, JniHandleOwnership, object> GetJniHandleConverter(Type target)
{
if (target == null)
{
return(null);
}
Func <IntPtr, JniHandleOwnership, object> converter;
if (JniHandleConverters.TryGetValue(target, out converter))
{
return(converter);
}
if (target.IsArray)
{
return((h, t) => JNIEnv.GetArray(h, t, target.GetElementType()));
}
if (target.IsGenericType && target.GetGenericTypeDefinition() == typeof(IDictionary <,>))
{
Type t = typeof(JavaDictionary <,>).MakeGenericType(target.GetGenericArguments());
return(GetJniHandleConverterForType(t));
}
if (typeof(IDictionary).IsAssignableFrom(target))
{
return((h, t) => JavaDictionary.FromJniHandle(h, t));
}
if (target.IsGenericType && target.GetGenericTypeDefinition() == typeof(IList <>))
{
Type t = typeof(JavaList <>).MakeGenericType(target.GetGenericArguments());
return(GetJniHandleConverterForType(t));
}
if (typeof(IList).IsAssignableFrom(target))
{
return((h, t) => JavaList.FromJniHandle(h, t));
}
if (target.IsGenericType && target.GetGenericTypeDefinition() == typeof(ICollection <>))
{
Type t = typeof(JavaCollection <>).MakeGenericType(target.GetGenericArguments());
return(GetJniHandleConverterForType(t));
}
if (typeof(ICollection).IsAssignableFrom(target))
{
return((h, t) => JavaCollection.FromJniHandle(h, t));
}
return(null);
}