content: /*
   * Copyright 2018 The Android Open Source Project
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *      http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  package com.prefabulated.bouncyball;
  
  import android.content.SharedPreferences;
  import android.os.Bundle;
  import android.preference.PreferenceManager;
  import android.util.Log;
  
  import androidx.appcompat.app.ActionBar;
  import androidx.appcompat.app.AppCompatActivity;
  
  public class SettingsActivity
          extends AppCompatActivity
          implements SharedPreferences.OnSharedPreferenceChangeListener {
  
      private final SettingsFragment mSettingsFragment = new SettingsFragment();
  
      @Override
      protected void onCreate(Bundle savedInstanceState) {
          super.onCreate(savedInstanceState);
  
          getSupportFragmentManager().beginTransaction()
                  .replace(android.R.id.content, mSettingsFragment)
                  .commit();
  
          ActionBar actionBar = getSupportActionBar();
          if (actionBar != null) {
              actionBar.setTitle("Settings");
          }
  
          PreferenceManager.getDefaultSharedPreferences(getApplicationContext())
                  .registerOnSharedPreferenceChangeListener(this);
      }
  
      @Override
      protected void onDestroy() {
          super.onDestroy();
  
          PreferenceManager.getDefaultSharedPreferences(getApplicationContext())
                  .unregisterOnSharedPreferenceChangeListener(this);
      }
  
      @Override
      public void onSharedPreferenceChanged(SharedPreferences sharedPreferences, String s) {
          Log.i("SettingsActivity.java", "onSharedPreferenceChanged");
      }
  }
  