Method UseNNAPI

tensorflow/lite/core/subgraph.cc:1077–1085

}

void Subgraph::UseNNAPI(bool enable) {
  // Note that there is no way to disable the delegate once it modified the
  // graph.
  if (applied_nnapi_delegate_ && !enable) {
    ReportError("Attempting to disable NNAPI delegate after it's applied.");
  } else {
    should_apply_nnapi_delegate_ = enable;
  }
}

void Subgraph::SwitchToDelegateContext() {
  context_.GetNodeAndRegistration = GetNodeAndRegistration;