diff options
Diffstat (limited to 'app/src/main/java/net/lacolaco/smileessence/view/CustomListFragment.java')
-rw-r--r-- | app/src/main/java/net/lacolaco/smileessence/view/CustomListFragment.java | 167 |
1 files changed, 167 insertions, 0 deletions
diff --git a/app/src/main/java/net/lacolaco/smileessence/view/CustomListFragment.java b/app/src/main/java/net/lacolaco/smileessence/view/CustomListFragment.java new file mode 100644 index 00000000..f6a683fe --- /dev/null +++ b/app/src/main/java/net/lacolaco/smileessence/view/CustomListFragment.java @@ -0,0 +1,167 @@ +/* + * 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; + +import android.app.Fragment; +import android.os.Bundle; +import android.view.LayoutInflater; +import android.view.View; +import android.view.ViewGroup; +import android.widget.AbsListView; +import android.widget.ListAdapter; +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.activity.MainActivity; +import net.lacolaco.smileessence.notification.Notificator; +import net.lacolaco.smileessence.view.adapter.CustomListAdapter; + +public class CustomListFragment extends Fragment implements AbsListView.OnScrollListener, + PullToRefreshBase.OnRefreshListener2<ListView> { + + // ------------------------------ FIELDS ------------------------------ + + public static final String ADAPTER_INDEX = "fragmentIndex"; + public static final int SCROLL_DURATION = 1500; + + private int fragmentIndex; + + // --------------------- 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) { + Bundle args = getArguments(); + fragmentIndex = args.getInt(ADAPTER_INDEX); + CustomListAdapter<?> adapter = getListAdapter(fragmentIndex); + adapter.setNotifiable(false); + + if (absListView.getFirstVisiblePosition() == 0 && absListView.getChildAt(0) != null && absListView.getChildAt(0).getTop() == 0) { + if (scrollState == SCROLL_STATE_IDLE) { + updateListViewWithNotice(absListView, adapter, true); + } + } + } + + @Override + public void onScroll(AbsListView absListView, int i, int i2, int i3) { + } + + // ------------------------ OVERRIDE METHODS ------------------------ + + @Override + public void onCreate(Bundle savedInstanceState) { + super.onCreate(savedInstanceState); + Bundle args = getArguments(); + fragmentIndex = args.getInt(ADAPTER_INDEX); + } + + @Override + public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { + View page = inflater.inflate(R.layout.fragment_list, container, false); + Bundle args = getArguments(); + int fragmentIndex = args.getInt(ADAPTER_INDEX); + PullToRefreshListView listView = getListView(page); + ListAdapter adapter = getListAdapter(fragmentIndex); + listView.setAdapter(adapter); + listView.setOnScrollListener(this); + listView.setOnRefreshListener(this); + listView.setMode(getRefreshMode()); + return page; + } + + @Override + public void onSaveInstanceState(Bundle outState) { + super.onSaveInstanceState(outState); + outState.putInt(ADAPTER_INDEX, fragmentIndex); + } + + @Override + public void onViewStateRestored(Bundle savedInstanceState) { + super.onViewStateRestored(savedInstanceState); + if (savedInstanceState != null) { + fragmentIndex = savedInstanceState.getInt(ADAPTER_INDEX); + } + } + + protected CustomListAdapter<?> getListAdapter(int fragmentIndex) { + return ((MainActivity) getActivity()).getListAdapter(fragmentIndex); + } + + protected PullToRefreshListView getListView(View page) { + return (PullToRefreshListView) page.findViewById(R.id.fragment_list_listview); + } + + protected void notifyListUpdated(int increments) { + Notificator.publish(getActivity(), getString(R.string.notice_timeline_new, increments)); + } + + protected void updateListViewWithNotice(AbsListView absListView, CustomListAdapter<?> adapter, boolean addedToTop) { + int before = adapter.getCount(); + adapter.notifyDataSetChanged(); // synchronized call (not adapter#updateForce()) + int after = adapter.getCount(); + int increments = after - before; + if (increments > 0) { + adapter.setNotifiable(false); + notifyListUpdated(increments); + if (addedToTop) { + absListView.setSelection(increments + 1); + absListView.smoothScrollToPositionFromTop(increments, 0); + absListView.setSelection(increments); + } else { + absListView.smoothScrollToPositionFromTop(before, 0); + } + + if (increments == 1) { + adapter.setNotifiable(true); + } + } else { + adapter.setNotifiable(true); + } + } +} |