Java tutorial
/** Copyright (c) 2013-2014 Jordi Lpez <@wuyingren> & <@aniol> * * MIT License: * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. * */ package cat.wuyingren.whatsannoy.activities; import android.content.Context; import android.content.Intent; import android.os.Bundle; import android.support.v4.app.FragmentManager; import android.support.v7.app.ActionBar; import android.view.Menu; import android.view.MenuItem; import org.holoeverywhere.app.Activity; import org.holoeverywhere.app.DialogFragment; import org.holoeverywhere.widget.DrawerLayout; import cat.wuyingren.whatsannoy.R; import cat.wuyingren.whatsannoy.fragments.NavigationDrawerFragment; import cat.wuyingren.whatsannoy.fragments.NowFragment; import cat.wuyingren.whatsannoy.fragments.RandomFragment; import cat.wuyingren.whatsannoy.fragments.ScheduleFragment; import cat.wuyingren.whatsannoy.fragments.TimePickerFragment; import cat.wuyingren.whatsannoy.utils.SystemUtils; public class MainActivity extends Activity implements NavigationDrawerFragment.NavigationDrawerCallbacks, TimePickerFragment.OnDBChangedListener { /** * Fragment managing the behaviors, interactions and presentation of the navigation drawer. */ private NavigationDrawerFragment mNavigationDrawerFragment; /** * Used to store the last screen title. For use in {@link #restoreActionBar()}. */ private CharSequence mTitle; private int sdkVer = 1; private Context context = this; private NowFragment nowFragment; private ScheduleFragment scheduleFragment; private RandomFragment randomFragment; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); // Configure fragment references sdkVer = SystemUtils.getSdkInt(); nowFragment = NowFragment.newInstance(); scheduleFragment = ScheduleFragment.newInstance(sdkVer); randomFragment = RandomFragment.newInstance(); mNavigationDrawerFragment = (NavigationDrawerFragment) getSupportFragmentManager() .findFragmentById(R.id.navigation_drawer); mTitle = getTitle(); // Set up the drawer. mNavigationDrawerFragment.setUp(R.id.navigation_drawer, (DrawerLayout) findViewById(R.id.drawer_layout)); } @Override public void onNavigationDrawerItemSelected(int position) { // update the main content by replacing fragments FragmentManager fragmentManager = getSupportFragmentManager(); /*fragmentManager.beginTransaction() .replace(R.id.container, PlaceholderFragment.newInstance(position + 1)) .commit();*/ switch (position) { case 0: if (nowFragment == null) { nowFragment = NowFragment.newInstance(); } fragmentManager.beginTransaction().replace(R.id.container, nowFragment).commit(); break; case 1: fragmentManager.beginTransaction().replace(R.id.container, scheduleFragment).commit(); break; case 2: fragmentManager.beginTransaction().replace(R.id.container, randomFragment).commit(); break; } onSectionAttached(position); // update title } public void onSectionAttached(int number) { switch (number) { case 0: mTitle = getString(R.string.title_section1); break; case 1: mTitle = getString(R.string.title_section2); break; case 2: mTitle = getString(R.string.title_section3); break; } } public void restoreActionBar() { ActionBar actionBar = getSupportActionBar(); actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_STANDARD); actionBar.setDisplayShowTitleEnabled(true); actionBar.setTitle(mTitle); } @Override public boolean onCreateOptionsMenu(Menu menu) { if (!mNavigationDrawerFragment.isDrawerOpen()) { // Only show items in the action bar relevant to this screen // if the drawer is not showing. Otherwise, let the drawer // decide what to show in the action bar. getMenuInflater().inflate(R.menu.global, menu); restoreActionBar(); return true; } return super.onCreateOptionsMenu(menu); } @Override public boolean onOptionsItemSelected(MenuItem item) { // Handle action bar item clicks here. The action bar will // automatically handle clicks on the Home/Up button, so long // as you specify a parent activity in AndroidManifest.xml. int id = item.getItemId(); switch (id) { case R.id.action_settings: openSettings(); return true; case R.id.action_new: scheduleNew(); return true; } /*if (id == R.id.action_settings) { openSettings(); return true; }*/ return super.onOptionsItemSelected(item); } private void scheduleNew() { DialogFragment df = new TimePickerFragment(); df.show(getSupportFragmentManager(), "timePicker"); } private void openSettings() { Intent i = new Intent(context, SettingsActivity.class); //overridePendingTransition(android.R.anim.fade_in, android.R.anim.fade_out); startActivity(i); } @Override public void onDBChanged() { scheduleFragment.updateDB(); } }