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/*
* The MIT License (MIT)
*
* Copyright (c) 2012-2014 lacolaco.net
*
* 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 net.lacolaco.smileessence.view.adapter;
import android.app.ActionBar;
import android.app.Fragment;
import android.content.Context;
import android.os.Bundle;
import android.support.v13.app.FragmentPagerAdapter;
import android.support.v4.view.ViewPager;
import android.widget.ArrayAdapter;
import net.lacolaco.smileessence.R;
import net.lacolaco.smileessence.activity.MainActivity;
import net.lacolaco.smileessence.logging.Logger;
import net.lacolaco.smileessence.view.PageFragment;
import java.lang.ref.WeakReference;
import java.util.ArrayList;
import java.util.List;
public class PageListAdapter extends FragmentPagerAdapter implements ViewPager.OnPageChangeListener, ActionBar.OnNavigationListener {
// ------------------------------ FIELDS ------------------------------
private final MainActivity context;
private final ActionBar actionBar;
private final ViewPager viewPager;
private final List<PageInfo> pages = new ArrayList<>();
// --------------------------- CONSTRUCTORS ---------------------------
public PageListAdapter(MainActivity _activity, ViewPager _viewPager) {
super(_activity.getFragmentManager());
context = _activity;
actionBar = _activity.getActionBar();
viewPager = _viewPager;
viewPager.setAdapter(this);
viewPager.addOnPageChangeListener(this);
}
// --------------------- GETTER / SETTER METHODS ---------------------
@Override
public synchronized int getCount() {
return pages.size();
}
// ------------------------ INTERFACE METHODS ------------------------
// --------------------- Interface OnNavigationListener ---------------------
@Override
public synchronized boolean onNavigationItemSelected(int itemPosition, long itemId) {
viewPager.setCurrentItem(itemPosition, true);
return true;
}
// --------------------- Interface OnPageChangeListener ---------------------
@Override
public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {
}
@Override
public synchronized void onPageSelected(int position) {
//Synchronize pager and navigation.
Logger.debug(String.format("Page selected:%d", position));
actionBar.setSelectedNavigationItem(position);
}
@Override
public void onPageScrollStateChanged(int state) {
}
// -------------------------- OTHER METHODS --------------------------
@Override
public synchronized Fragment getItem(int position) {
PageInfo info = pages.get(position);
return info.instantiate(context);
}
public void addPage(Class<? extends PageFragment> klass, String name, Bundle args) {
this.addPage(klass, name, args, true);
}
public void addPage(Class<? extends PageFragment> klass, String name, Bundle args, boolean notifyChanged) {
pages.add(new PageInfo(klass, name, args));
if (notifyChanged) notifyDataSetChanged();
}
public synchronized boolean removePage(int position) {
//if (removePageWithoutNotify(position)) {
// refreshListNavigation();
// return true;
//}
return pages.remove(position) != null; // TODO
}
@Override
public void notifyDataSetChanged() {
ArrayList<String> itemList = new ArrayList<>();
for (PageInfo f : pages) {
itemList.add(f.getName());
}
ArrayAdapter<String> adapter = new ArrayAdapter<>(context, R.layout.navigation_list_item, R.id.navigation_list_item_text, itemList);
actionBar.setListNavigationCallbacks(adapter, this);
super.notifyDataSetChanged();
}
@Deprecated
public int getIndex(Class<? extends PageFragment> fragmentClass) {
for (int i = 0; i < pages.size(); ++i) {
if (pages.get(i).getFragmentClass() == fragmentClass) {
return i;
}
}
return -1;
}
@Deprecated
public <T extends PageFragment> T getFragment(Class<T> fragmentClass) {
for(PageInfo info : pages) {
if (info.getFragmentClass() == fragmentClass) {
return (T) info.getCachedInstance();
}
}
return null;
}
private static final class PageInfo {
private final Class<? extends PageFragment> fragmentClass;
private final Bundle args;
private final String name;
private WeakReference<PageFragment> fragmentCache;
PageInfo(Class<? extends PageFragment> _fragmentClass, String _name, Bundle _args) {
fragmentClass = _fragmentClass;
name = _name;
args = _args;
}
public Class<? extends PageFragment> getFragmentClass() {
return fragmentClass;
}
public String getName() { return name; }
public Bundle getArgs() {
return args;
}
public PageFragment instantiate(Context context) {
PageFragment fragment = (PageFragment) Fragment.instantiate(context, getFragmentClass().getName(), getArgs());
fragmentCache = new WeakReference<>(fragment);
return fragment;
}
public PageFragment getCachedInstance() {
return fragmentCache.get();
}
}
}
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