Android Shared Preferences Helper Class

ActivityOrFragment.java

public class ActivityOrFragment extends AppCompatActivity {
    
   
    @Override
    protected void onCreate(Bundle savedInstanceState) {
      // usage
      
      // save in shared preference
      SharedPreferencesHelper.init(getApplicationContext(), "Shared Preference Name")
                    .setEditor()
                    .putString("key", "value")
                    .apply();
      
      
      // retrieve from shared preference
      String stringValue = SharedPreferencesHelper.init(getApplicationContext(), "Shared Preference Name")
                .get()
                .getString("key", null);
      
    }
}

SharedPreferencesHelper.java

package com.utilities.helpers;

import android.content.Context;
import android.content.SharedPreferences;

public class SharedPreferencesHelper {

    private SharedPreferences sharedPreferences;

    public SharedPreferencesHelper() {
    }

    /**
     *
     * Initialize Shared Preference
     *
     * @param context
     * @param sharedPreferenceName
     */
    public SharedPreferencesHelper(Context context, String sharedPreferenceName) {
        sharedPreferences = context.getSharedPreferences(sharedPreferenceName, Context.MODE_PRIVATE);
    }

    /**
     *
     * Initialize Shared Preference
     *
     * @param context
     * @param sharedPreferenceName
     * @param mode
     */
    public SharedPreferencesHelper(Context context, String sharedPreferenceName, Integer mode) {
        sharedPreferences = context.getSharedPreferences(sharedPreferenceName, mode);
    }

    /**
     *
     * Initialize Shared Preference from Activity or Fragment
     *
     * @param context
     * @param sharedPreferenceName
     * @return SharedPreferencesHelper
     */
    public static SharedPreferencesHelper init(Context context, String sharedPreferenceName){
        return new SharedPreferencesHelper(context, sharedPreferenceName);
    }

    /**
     *
     * Initialize Shared Preference from Activity or Fragment
     *
     * @param context
     * @param sharedPreferenceName
     * @param mode
     * @return SharedPreferencesHelper
     */
    public static SharedPreferencesHelper init(Context context, String sharedPreferenceName, Integer mode){
        return new SharedPreferencesHelper(context, sharedPreferenceName, mode);
    }

    /**
     *
     * Set Editor
     *
     * @return SharedPreferences.Editor
     */
    public SharedPreferences.Editor setEditor(){
        return sharedPreferences.edit();
    }

    /**
     * Get value from shared preference
     *
     * @return
     */
    public SharedPreferences get(){
        return sharedPreferences;
    }

}