private object InvokeMethod(IntPtr method, ParameterInfo[] parameterInfo, bool[] needBoxing)
{
object result;
IntPtr methodReturn = _methodClass.GetReturnType(method);
IntPtr jniMethodPtr = _vm.FromReflectedMethod(method);
string returnTypeName = _classClass.GetName(methodReturn);
JValue[] parameters = parameterInfo.Select((p, i) => p.Value(_vm, needBoxing[i])).ToArray();
PrimitiveType returnTypeAsPrimitive = PrimitiveType.FromString(_vm, returnTypeName);
if (methodReturn == IntPtr.Zero || returnTypeName == "void")
{
result = null;
_vm.CallVoidMethod(_objectPointer, jniMethodPtr, parameters);
}
else if (returnTypeAsPrimitive != null)
{
switch (returnTypeAsPrimitive.Kind)
{
case PrimitiveTypeKind.Boolean:
result = _vm.CallBooleanMethod(_objectPointer, jniMethodPtr, parameters);
break;
case PrimitiveTypeKind.Byte:
result = _vm.CallByteMethod(_objectPointer, jniMethodPtr, parameters);
break;
case PrimitiveTypeKind.Char:
result = _vm.CallCharMethod(_objectPointer, jniMethodPtr, parameters);
break;
case PrimitiveTypeKind.Double:
result = _vm.CallDoubleMethod(_objectPointer, jniMethodPtr, parameters);
break;
case PrimitiveTypeKind.Float:
result = _vm.CallFloatMethod(_objectPointer, jniMethodPtr, parameters);
break;
case PrimitiveTypeKind.Int:
result = _vm.CallIntMethod(_objectPointer, jniMethodPtr, parameters);
break;
case PrimitiveTypeKind.Long:
result = _vm.CallLongMethod(_objectPointer, jniMethodPtr, parameters);
break;
case PrimitiveTypeKind.Short:
result = _vm.CallShortMethod(_objectPointer, jniMethodPtr, parameters);
break;
default:
throw new InvalidOperationException("Unknown primitive type: " + returnTypeAsPrimitive.Kind);
}
}
else
{
IntPtr methodResult = _vm.CallObjectMethod(_objectPointer, jniMethodPtr, parameters);
if (methodResult != IntPtr.Zero)
{
if (returnTypeName.StartsWith("["))
{
result = new JavaArray(_vm, methodResult, (ArrayType)JavaType.FromReflectedType(_vm, methodReturn));
}
else
{
result = new JavaObject(_vm, methodResult, null);
}
}
else
{
result = null;
}
}
return(result);
}