android - Having a problem with SharedPreferences where it does not save a value to SharedPreferences. When called, only default value showing

Question

I'm having a problem with SharedPreferences. The same code works in one activity in another app, but does not work anywhere else within that app, and in this app it does not work at all. Could you please tell me what I'm doing wrong? I have previously tried to create public final static String for the sharedprefand value keys, but even that didn't work. The code is.

import androidx.appcompat.app.AppCompatActivity;

import android.content.SharedPreferences;
import android.os.Bundle;

public class SharedPrefs extends AppCompatActivity {

public int VO, VT, VTH;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    VO = 10;
    VT = 15;
    VTH = 25;

    SharedPreferences Stats = getSharedPreferences("STATS", MODE_PRIVATE);
    SharedPreferences.Editor StatEdit = Stats.edit();
    StatEdit.putInt("VOP", VO);
    StatEdit.putInt("VTP", VT);
    StatEdit.putInt("VTHP", VTH);
    StatEdit.apply();

}

And I'm receiving with

import androidx.appcompat.app.AppCompatActivity;

import android.content.SharedPreferences;
import android.os.Bundle;
import android.widget.Button;
import android.widget.TextView;

public class MM extends AppCompatActivity {

Button b1, b2;
TextView text;
public int VO, VT, VTH;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_m_m);

    SharedPreferences Stats = getSharedPreferences("STATS", MODE_PRIVATE);
    VO = Stats.getInt("VOP", 0);
    VT = Stats.getInt("VTP", 0);
    VTH = Stats.getInt("VTHP", 0);



    b1 = findViewById(R.id.button);
    b2 = findViewById(R.id.button2);
    text = findViewById(R.id.textView);

    text.setText("YOU " + VO + VT + VTH);

}

question from:https://stackoverflow.com/questions/65845982/having-a-problem-with-sharedpreferences-where-it-does-not-save-a-value-to-shared

Answer 1

SharedPreferences Stats = getSharedPreferences("STATS", MODE_PRIVATE);

to (optional)

SharedPreferences Stats = getSharedPreferences("STATS", Context.MODE_PRIVATE);

---

 StatEdit.apply();

to

 StatEdit.commit();

you must provide change.