为什么 ViewModelProviders 已被弃用？

Question

Why has ViewModelProviders been deprecated? I want to understand the reasons this class has been deprecated. Is it because google used Service Locator design pattern ( so called anti-pattern ) in it?

Answer 1

If you look at the source code , you'll see that the ViewModelProviders is nothing but a wrapper around a new constructor for ViewModelProvider :

public static ViewModelProvider of(@NonNull Fragment fragment) {
    return new ViewModelProvider(fragment);
}

So, as per the deprecation message, just use new ViewModelProvider(this) instead of ViewModelProviders.of(this) .