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public class NameActivity extends AppCompatActivity {
private NameViewModel mModel;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// Get the ViewModel.
mModel = ViewModelProviders.of(this).get(NameViewModel.class);
// Create the observer which updates the UI.
final Observer<String> nameObserver = new Observer<String>() {
@Override
public void onChanged(@Nullable final String newName) {
// Update the UI, in this case, a TextView.
mNameTextView.setText(newName);
}
};
// Observe the LiveData, passing in this activity as the LifecycleOwner and the observer.
mModel.getCurrentName().observe(this, nameObserver);
}
}
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