Xamarin Forms 与 Prism 和 DryIoc 有很多注册页面，会降低性能吗？

Question

For example, we have a big Xamarin forms project, with 2000 page, and Prism MVVM framework, with DryIoc container, that has registered all 2000 pages.

This a lot of pages, added with DependencyService for example, navigationservice, dialogservice, can reduce navigation's speed and/or performance? It can makes app run slow, for a lot of dependency?

Thanks!!

Answer 1

There isn't a simple answer to this. The general one is - yes. The DryIoc, like any package, is an additional overhead to your project. The IoC container surely adds some time to the overall feeling. Keep in mind that the overhead is minimal - in the matter of some milliseconds. Like it says in the GitHub repo :

Designed for low-ceremony use, performance, and extensibility.

DryIoc is considered to be a relatively fast container. Here is the official IoC Container Benchmark - Performance comparison .

But again, it all depends on how many services you need to instantiate. It doesn't matter if you have 2000 pages. It matters how many dependencies you will have with these pages and how many circular dependencies also.

Also, some of the IoC logic is being done on app start-up and you can also match some of the resolving there.

To sum up - it is better to have IoC container, than to not have one because the flexibility, that you get from it, beats the eventual small overhead of performance.