ViewModelProviders is deprecated in 1.1.0

Question

Looking at the Google docs for ViewModel, they show the below sample code on how to get a ViewModel:

val model = ViewModelProviders         


        

Answer 1

Yes @Tarek, it is deprecated. Use now with AndroidX:

val yourViewModel = ViewModelProvider.NewInstanceFactory().create(YourVideoModel::class.java)

Answer 2

Use ViewModelProvider directly instead of user ViewModelProviders.of() as mentioned in the docs.

ViewModelProvider(this).get(XViewModel::class.java)

https://developer.android.com/reference/androidx/lifecycle/ViewModelProviders

Answer 3

I'm no expert but i have a line of code that solved my problem in Java. Hope this helps someone.

viewModel = 
new ViewModelProvider
.AndroidViewModelFactory(getApplication())
.create(ViewModel.class);

As i said i would love to provide more details, but this fixed this problem for me.

Answer 4

I'm using android X and also had this issue.

First of all, you should add these dependencies to your Gradle:

implementation "androidx.lifecycle:lifecycle-extensions:$lifecycle_version"
kapt "androidx.lifecycle:lifecycle-compiler:$lifecycle_version" 

In my case, the $lifecycle_version was 2.2.0-rc02

Second: The import for the ViewModelProvider should be:

import androidx.lifecycle.ViewModelProvider

Than you can initial your vIewModel like the examples below:

val viewModel = ViewModelProvider(this, YourFactoryInstace).get(MainViewModel::class.java)

val viewModel = ViewModelProvider(this).get(MainViewModel::class.java)