Modified preference initialization mechanism to ignore the initialization if the preference is already available within the underlying shared preference.

Author: buggysofts-com

app/src/main/java/com/buggysofts/preferencestoreimpl/MainActivity.java

@@ -14,7 +14,7 @@
 import java.util.HashSet;
 import java.util.Set;
 
-class MainActivity extends AppCompatActivity {
+public class MainActivity extends AppCompatActivity {
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);