JAVA中弃用ViewModelProviders后如何实现ViewModelProvider

implementation "androidx.lifecycle:lifecycle-viewmodel:2.4.0"

import androidx.lifecycle.ViewModel;
import androidx.lifecycle.ViewModelProvider;

public class CustomViewModelProvider {

    private ViewModelProvider.Factory factory;

    public CustomViewModelProvider(ViewModelProvider.Factory factory) {
        this.factory = factory;
    }

    public <T extends ViewModel> T get(Class<T> modelClass) {
        return new ViewModelProvider(this, factory).get(modelClass);
    }
}

CustomViewModelProvider viewModelProvider = new CustomViewModelProvider(new ViewModelProvider.NewInstanceFactory());
MyViewModel myViewModel = viewModelProvider.get(MyViewModel.class);