/* * App Mount, mount/umount apps that you don't like on Android, without root. * Copyright (C) 2017 Matthew Lee * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. */ package io.github.mthli.mount.widget; import android.content.Context; import android.support.annotation.NonNull; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.widget.ArrayAdapter; import android.widget.SectionIndexer; import java.text.Collator; import java.util.ArrayList; import java.util.Collections; import java.util.Comparator; import java.util.LinkedHashMap; import java.util.List; import java.util.Map; import io.github.mthli.mount.R; import io.github.mthli.mount.model.PackageRecord; public class PackageItemAdapter extends ArrayAdapter<PackageRecord> implements SectionIndexer { private Context mContext; private List<PackageRecord> mPackageList; private Map<String, Integer> mSectionMap; private String[] mSectionArray; public PackageItemAdapter(Context context, List<PackageRecord> list) { super(context, R.layout.layout_package_item, list); mContext = context; mPackageList = list; mSectionMap = new LinkedHashMap<>(); mSectionArray = new String[0]; buildSection(); } @NonNull @Override public View getView(int position, View convertView, @NonNull ViewGroup parent) { View view = convertView; if (!(view instanceof PackageItemLayout)) { view = LayoutInflater.from(mContext).inflate(R.layout.layout_package_item, parent, false); } ((PackageItemLayout) view).setPackageRecord(mPackageList.get(position)); return view; } // ============================================================================================= @Override public int getPositionForSection(int sectionIndex) { return mSectionMap.get(mSectionArray[sectionIndex]); } @Override public int getSectionForPosition(int position) { return 0; } @Override public Object[] getSections() { return mSectionArray; } @Override public void notifyDataSetChanged() { super.notifyDataSetChanged(); buildSection(); } private void buildSection() { mSectionMap.clear(); for (int index = 0; index < mPackageList.size(); index++) { mSectionMap.put(mPackageList.get(index).label.substring(0, 1).toUpperCase(), index); } List<String> sectionList = new ArrayList<>(mSectionMap.keySet()); Collections.sort(sectionList, new Comparator<String>() { @Override public int compare(String o1, String o2) { return Collator.getInstance().compare(o1, o2); } }); mSectionArray = new String[sectionList.size()]; sectionList.toArray(mSectionArray); } }