Java tutorial
/* * Copyright 2015 Eduard Scarlat * * 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 ro.edi.novelty.ui; import android.app.AlarmManager; import android.app.PendingIntent; import android.content.Context; import android.content.Intent; import android.os.Bundle; import android.support.v4.app.DialogFragment; import android.support.v4.app.Fragment; import android.support.v4.app.ListFragment; import android.support.v4.view.ViewPager; import android.support.v4.view.ViewPager.OnPageChangeListener; import android.support.v7.widget.Toolbar; import android.text.format.Time; import android.view.Menu; import android.view.MenuInflater; import android.view.MenuItem; import android.widget.ListView; import de.greenrobot.event.EventBus; import ro.edi.novelty.R; import ro.edi.novelty.core.FeedsManager; import ro.edi.novelty.core.OnAlarmReceiver; import ro.edi.novelty.ui.util.FeedsAdapter; import ro.edi.novelty.ui.util.FeedsEvent; import ro.edi.novelty.ui.util.FeedsIndicator; import ro.edi.util.Log; import ro.edi.util.ui.AltListView; import ro.edi.util.ui.TitlePageIndicator; public class HomeActivity extends BaseActivity { private static final String TAG = "HOME.ACTIVITY"; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); // startService(new Intent(getApplication(), CleanupService.class)); // if (sharedPrefs.getBoolean(Keys.FIRST_RUN, true)) // { // Editor editor = sharedPrefs.edit(); // editor.putBoolean(Keys.FIRST_RUN, false); // editor.apply(); // schedule cleanup service // FIXME temp fix Time time = new Time(); time.setToNow(); // time.hour = 3; // time.minute = 0; // time.second = 0; // ++time.monthDay; // time.normalize(true); Intent intent = new Intent(getApplication(), OnAlarmReceiver.class); intent.setAction(OnAlarmReceiver.ACTION_CLEANUP); AlarmManager am = (AlarmManager) getSystemService(Context.ALARM_SERVICE); am.set(AlarmManager.RTC_WAKEUP, time.toMillis(true), PendingIntent.getBroadcast(getApplicationContext(), 0, intent, PendingIntent.FLAG_UPDATE_CURRENT)); // } EventBus.getDefault().register(this); } @Override protected int getLayoutResource() { return R.layout.activity_home; } @Override protected Toolbar initToolbar() { Toolbar toolbar = super.initToolbar(); if (toolbar != null) { getSupportActionBar().setDisplayShowTitleEnabled(false); toolbar.setLogo(R.drawable.logo); getSupportActionBar().setDisplayHomeAsUpEnabled(false); } return toolbar; } @Override protected void initUI() { super.initUI(); final FeedsAdapter adapter = new FeedsAdapter(getApplication(), getSupportFragmentManager()); final ViewPager pager = (ViewPager) findViewById(R.id.pager); pager.setAdapter(adapter); FeedsIndicator indicator = (FeedsIndicator) findViewById(R.id.tabs); indicator.setViewPager(pager, adapter.getCount() > 1 ? 1 : 0); indicator.setOnPageChangeListener(new OnPageChangeListener() { @Override public void onPageSelected(int position) { Log.i("NOVELTY", "onPageSelected: ", position); if (position > 1) { // first page is handled in onPageScrolled() adapter.refreshFeed(position); } } @Override public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) { // workaround for onPageSelected not being called the first time if (position == 1 && positionOffsetPixels == 0) { Log.i("NOVELTY", "onPageScrolled @ 0: ", position); adapter.refreshFeed(position); } } @Override public void onPageScrollStateChanged(int state) { } }); indicator.setOnCenterItemClickListener(new TitlePageIndicator.OnCenterItemClickListener() { @Override public void onCenterItemClick(int position) { Fragment f = adapter.getFragment(position); if (f != null) { ListView l = ((ListFragment) f).getListView(); if (position == 0) { l.smoothScrollToPosition(0); } else { ((AltListView) l).requestPositionToScreen(0, true); } } } }); } @Override public boolean onCreateOptionsMenu(Menu menu) { MenuInflater menuInflater = getMenuInflater(); menuInflater.inflate(R.menu.opt_intro, menu); menu.findItem(R.id.menu_manage_feeds).setVisible(FeedsManager.getInstance().getFeedsCount() > 0); return super.onCreateOptionsMenu(menu); } @Override public boolean onOptionsItemSelected(MenuItem item) { switch (item.getItemId()) { case R.id.menu_manage_feeds: Intent iManage = new Intent(getApplication(), ManageFeedsActivity.class); startActivityForResult(iManage, 102); break; case R.id.menu_about: DialogFragment idf = new InfoDialogFragment(); idf.show(getSupportFragmentManager(), "dialog_info"); break; default: break; } return super.onOptionsItemSelected(item); } @Override protected void onDestroy() { EventBus.getDefault().unregister(this); super.onDestroy(); } @SuppressWarnings("unused") public void onEvent(FeedsEvent event) { Log.i(TAG, "FeedsEvent"); supportInvalidateOptionsMenu(); } }