Java tutorial
/* * Copyright (C) 2013 CampusUB1 Development Team * * 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.dev.campus.event; import java.util.ArrayList; import android.app.ActionBar; import android.content.Intent; import android.os.Bundle; import android.provider.CalendarContract; import android.provider.CalendarContract.Events; import android.support.v4.app.FragmentActivity; import android.support.v4.view.ViewPager; import android.support.v4.view.ViewPager.OnPageChangeListener; import android.text.Html; import android.view.Menu; import android.view.MenuItem; import com.dev.campus.R; /** * Activity responsible for displaying detailed views of events * @author CampusUB1 Development Team * */ public class EventViewActivity extends FragmentActivity { private ActionBar mActionBar; private ArrayList<Event> mEvents; private EventPagerAdapter mEventPagerAdapter; private ViewPager mViewPager; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_event_view); mActionBar = getActionBar(); mActionBar.setDisplayHomeAsUpEnabled(true); int currentIndex = getIntent().getIntExtra(EventsActivity.EXTRA_EVENTS_INDEX, 0); mEvents = (ArrayList<Event>) getIntent().getSerializableExtra(EventsActivity.EXTRA_EVENTS); mEventPagerAdapter = new EventPagerAdapter(getSupportFragmentManager(), mEvents); mViewPager = (ViewPager) findViewById(R.id.pager); mViewPager.setAdapter(mEventPagerAdapter); mViewPager.setCurrentItem(currentIndex); setEventRead(currentIndex); mViewPager.setOnPageChangeListener(new OnPageChangeListener() { @Override public void onPageSelected(int position) { setEventRead(position); } @Override public void onPageScrolled(int position, float arg1, int arg2) { } @Override public void onPageScrollStateChanged(int arg0) { } }); } public void setEventRead(int position) { mEvents.get(position).setRead(true); } @Override public void finish() { Intent intent = new Intent(); intent.putExtra(EventsActivity.EXTRA_EVENTS_RESULT, mEvents); setResult(RESULT_OK, intent); super.finish(); } @Override public boolean onCreateOptionsMenu(Menu menu) { getMenuInflater().inflate(R.menu.calendar_actionbar, menu); return true; } @Override public boolean onOptionsItemSelected(MenuItem item) { switch (item.getItemId()) { case android.R.id.home: finish(); return true; case R.id.menu_calendar: addToCalendar(mEvents.get(mViewPager.getCurrentItem())); return true; default: return super.onOptionsItemSelected(item); } } /** * Launches the device's calendar and pre-fills event info * @param event the event to add to the calendar */ public void addToCalendar(Event event) { //Strip HTML tags and carriage returns for better readability String details = Html.fromHtml(event.getDetails()).toString().replace("\n", " "); Intent calIntent = new Intent(Intent.ACTION_EDIT); calIntent.setType("vnd.android.cursor.item/event"); calIntent.putExtra(Events.TITLE, event.getTitle()); calIntent.putExtra(Events.DESCRIPTION, details); calIntent.putExtra(CalendarContract.EXTRA_EVENT_BEGIN_TIME, event.getStartDate().getTime()); calIntent.putExtra(CalendarContract.EXTRA_EVENT_END_TIME, event.getEndDate().getTime()); startActivity(calIntent); } }