Java – setText from a fragment of another activity that has nothing to do with fragment

I want to set a textView in a fragment of another activity, this activity is not a mainactivity, has a fragment transaction…

Have tried some of the methods in other related articles related to my issue but get an error…

This is the method I received from another activity in the fragment

fragment A

public class FragmentA extends Fragment {
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

ProgressDialog pDialog = new ProgressDialog(getContext());
        pDialog.setCancelable(false);

}

@Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
         Inflating view layout
        View layout = inflater.inflate(R.layout.fragment_A, container, false);

Put Data to id fragment
        valueName = (TextView) layout.findViewById(R.id.valueNameNav);
        valueStatus = (TextView) layout.findViewById(R.id.valueStatusNav);

}

public void setText(String name, String status){

valueName = (TextView) getView().findViewById(R.id.valueNameNav);
            valueName.setText(name);
            valueStatus = (TextView) getView().findViewById(R.id.valueStatusNav);
            valueStatus.setText(status);
    }
}

This is how I call the setText method in the fragment of the activity

String editValueName= editName.getText().toString();
String lastStatus = valueStatus.getText().toString();

FragmentA mFragment = (FragmentA )
     getSupportFragmentManager().findFragmentById(R.id.fragment_A);

mFragment.setText(editValueName, lastStatus);

But there was such an error

java.lang.NullPointerException: Attempt to invoke virtual method ‘void
com.example.study.fragment.fragmentA.setText(java.lang.String,
java.lang.String)’ on a null object reference

100% sure that there is a data string on the string getText

Create a FrameLayout in your activity with an id container and a height width of MATCH_PARENT
Then add fragments to your activity like this

FragmentA newFragment = new FragmentA ();
            FragmentTransaction ft = getFragmentManager().beginTransaction();
            ft.replace(R.id.container, newFragment).commit();

Then set your text

String editValueName= editName.getText().toString();
String lastStatus = valueStatus.getText().toString();
newFragment .setText(editValueName, lastStatus);