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androidviewmodel

Why has ViewModelProviders been deprecated?

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 ?

Solution

  • 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).