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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.page;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AbsListView;
import android.widget.ListView;
import com.handmark.pulltorefresh.library.PullToRefreshBase;
import com.handmark.pulltorefresh.library.PullToRefreshListView;
import net.lacolaco.smileessence.R;
import net.lacolaco.smileessence.notification.Notificator;
import net.lacolaco.smileessence.view.adapter.CustomListAdapter;
public abstract class CustomListFragment<T extends CustomListAdapter> extends PageFragment<T> implements AbsListView.OnScrollListener,
PullToRefreshBase.OnRefreshListener2<ListView> {
// ------------------------------ FIELDS ------------------------------
public static final int SCROLL_DURATION = 1500;
// --------------------- GETTER / SETTER METHODS ---------------------
protected PullToRefreshBase.Mode getRefreshMode() {
return PullToRefreshBase.Mode.DISABLED;
}
// ------------------------ INTERFACE METHODS ------------------------
// --------------------- Interface OnRefreshListener2 ---------------------
@Override
public void onPullDownToRefresh(PullToRefreshBase<ListView> refreshView) {
}
@Override
public void onPullUpToRefresh(PullToRefreshBase<ListView> refreshView) {
}
// --------------------- Interface OnScrollListener ---------------------
@Override
public void onScrollStateChanged(AbsListView absListView, int scrollState) {
T adapter = getAdapter();
if (scrollState != SCROLL_STATE_TOUCH_SCROLL &&
absListView.getFirstVisiblePosition() == 0 && (absListView.getChildAt(0) == null || absListView.getChildAt(0).getTop() == 0)) {
adapter.setNotifiable(true);
updateListViewWithNotice(absListView, true);
} else {
adapter.setNotifiable(false);
}
}
@Override
public void onScroll(AbsListView absListView, int i, int i2, int i3) {
}
// ------------------------ OVERRIDE METHODS ------------------------
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View page = inflater.inflate(R.layout.fragment_list, container, false);
PullToRefreshListView listView = getListView(page);
listView.setAdapter(getAdapter());
listView.setOnScrollListener(this);
listView.setOnRefreshListener(this);
listView.setMode(getRefreshMode());
return page;
}
protected PullToRefreshListView getListView(View page) {
return (PullToRefreshListView) page.findViewById(R.id.fragment_list_listview);
}
protected void updateListViewWithNotice(AbsListView absListView, boolean addedToTop) {
T adapter = getAdapter();
int before = adapter.getCount();
adapter.notifyDataSetChanged(); // synchronized call (not adapter#updateForce())
int after = adapter.getCount();
int increments = after - before;
if (increments > 0) {
Notificator.getInstance().publish(R.string.notice_timeline_new, increments);
if (addedToTop) {
absListView.setSelection(increments + 1);
absListView.smoothScrollToPositionFromTop(increments, 0);
absListView.setSelection(increments);
} else {
absListView.smoothScrollToPositionFromTop(before, 0);
}
if (increments > 1) {
adapter.setNotifiable(false);
}
}
}
}
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