Java tutorial
/* * Copyright (C) 2014-2015 Devin Hussey * * 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 bander.notepad; import android.content.Intent; import android.content.SharedPreferences; import android.os.Bundle; import android.preference.PreferenceManager; import android.support.v4.app.Fragment; import android.support.v4.app.FragmentActivity; import android.support.v4.app.FragmentManager; import android.support.v4.app.FragmentTransaction; import android.util.Log; import android.view.MenuItem; public class PrefsActivity extends FragmentActivity { Fragment myFragment = new PrefsFragment(); @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this); if (prefs.getString("themeType", "0").equals("0")) { startActivity(new Intent(this, PrefsActivityAppCompat.class)); finish(); } Notepad.setThemeFromPreferences(this); if (getActionBar() != null) getActionBar().setDisplayHomeAsUpEnabled(true); // Starting the Fragment Log.i("INFO", "Starting PreferenceFragment..."); FragmentManager manager = getSupportFragmentManager(); FragmentTransaction transaction = manager.beginTransaction(); transaction.replace(android.R.id.content, myFragment); transaction.commit(); } @Override public void onBackPressed() { Intent prefsActivity = new Intent(this, Notepad.class); prefsActivity.putExtra("noPassword", true); startActivity(prefsActivity); finish(); } @Override public boolean onOptionsItemSelected(MenuItem item) { switch (item.getItemId()) { case android.R.id.home: onBackPressed(); return true; } return super.onOptionsItemSelected(item); } }