remove unused adapter
This commit is contained in:
Dominik Schürmann
parent
f7c24a58c4
commit
936e7494b9
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@ -1,266 +0,0 @@
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/*
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* Copyright (C) 2013 Dominik Schürmann <dominik@dominikschuermann.de>
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* Copyright (C) 2011 Gonçalo Ferreira
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.sufficientlysecure.keychain.util;
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import java.util.LinkedHashMap;
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import android.content.Context;
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import android.database.Cursor;
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import android.database.DataSetObserver;
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import android.support.v4.widget.CursorAdapter;
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import android.util.Log;
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import android.view.LayoutInflater;
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import android.view.View;
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import android.view.ViewGroup;
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import android.widget.TextView;
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/**
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* Originally from https://github.com/monxalo/android-section-adapter
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*
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* getCustomGroup() has been modified
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*/
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public abstract class SectionCursorAdapter extends CursorAdapter {
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private static final String TAG = "SectionCursorAdapter";
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private static final boolean LOGV = false;
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private static final int TYPE_NORMAL = 1;
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private static final int TYPE_HEADER = 0;
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private static final int TYPE_COUNT = 2;
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private final int mHeaderRes;
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private final int mGroupColumn;
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private final LayoutInflater mLayoutInflater;
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private LinkedHashMap<Integer, String> sectionsIndexer;
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public static class ViewHolder {
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public TextView textView;
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}
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public SectionCursorAdapter(Context context, Cursor c, int headerLayout, int groupColumn) {
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super(context, c, 0);
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sectionsIndexer = new LinkedHashMap<Integer, String>();
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mHeaderRes = headerLayout;
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mGroupColumn = groupColumn;
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mLayoutInflater = LayoutInflater.from(context);
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if (c != null) {
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calculateSectionHeaders();
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c.registerDataSetObserver(mDataSetObserver);
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}
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}
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private DataSetObserver mDataSetObserver = new DataSetObserver() {
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public void onChanged() {
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calculateSectionHeaders();
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};
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public void onInvalidated() {
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sectionsIndexer.clear();
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};
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};
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/**
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* <p>
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* This method serve as an intercepter before the sections are calculated so you can transform
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* some computer data into human readable, e.g. format a unix timestamp, or a status.
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* </p>
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*
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* <p>
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* By default this method returns the original data for the group column.
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* </p>
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*
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* @param groupData
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* @return
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*/
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protected String getCustomGroup(String groupData) {
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return groupData.substring(0, 1);
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}
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private void calculateSectionHeaders() {
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int i = 0;
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String previous = "";
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int count = 0;
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final Cursor c = getCursor();
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sectionsIndexer.clear();
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if (c == null) {
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return;
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}
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c.moveToPosition(-1);
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while (c.moveToNext()) {
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final String group = getCustomGroup(c.getString(mGroupColumn));
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if (!previous.equals(group)) {
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sectionsIndexer.put(i + count, group);
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previous = group;
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if (LOGV)
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Log.v(TAG, "Group " + group + "at position: " + (i + count));
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count++;
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}
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i++;
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}
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}
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public String getGroupCustomFormat(Object obj) {
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return null;
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}
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@Override
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public View getView(int position, View convertView, ViewGroup parent) {
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int viewType = getItemViewType(position);
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if (viewType == TYPE_NORMAL) {
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Cursor c = (Cursor) getItem(position);
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if (c == null) {
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if (LOGV)
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Log.d(TAG, "getItem(" + position + ") = null");
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return mLayoutInflater.inflate(mHeaderRes, parent, false);
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}
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final int mapCursorPos = getSectionForPosition(position);
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c.moveToPosition(mapCursorPos);
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return super.getView(mapCursorPos, convertView, parent);
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} else {
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ViewHolder holder = null;
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if (convertView == null) {
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if (LOGV)
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Log.v(TAG, "Creating new view for section");
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holder = new ViewHolder();
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convertView = mLayoutInflater.inflate(mHeaderRes, parent, false);
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holder.textView = (TextView) convertView;
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convertView.setTag(holder);
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} else {
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if (LOGV)
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Log.v(TAG, "Reusing view for section");
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holder = (ViewHolder) convertView.getTag();
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}
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TextView sectionText = holder.textView;
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final String group = sectionsIndexer.get(position);
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final String customFormat = getGroupCustomFormat(group);
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sectionText.setText(customFormat == null ? group : customFormat);
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return sectionText;
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}
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}
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@Override
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public int getViewTypeCount() {
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return TYPE_COUNT;
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}
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@Override
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public int getCount() {
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return super.getCount() + sectionsIndexer.size();
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}
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@Override
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public boolean isEnabled(int position) {
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return getItemViewType(position) == TYPE_NORMAL;
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}
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public int getPositionForSection(int section) {
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if (sectionsIndexer.containsKey(section)) {
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return section + 1;
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}
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return section;
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}
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public int getSectionForPosition(int position) {
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int offset = 0;
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for (Integer key : sectionsIndexer.keySet()) {
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if (position > key) {
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offset++;
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} else {
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break;
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}
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}
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return position - offset;
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}
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@Override
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public Object getItem(int position) {
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if (getItemViewType(position) == TYPE_NORMAL) {
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return super.getItem(getSectionForPosition(position));
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}
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return super.getItem(position);
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}
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@Override
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public long getItemId(int position) {
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if (getItemViewType(position) == TYPE_NORMAL) {
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return super.getItemId(getSectionForPosition(position));
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}
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return super.getItemId(position);
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}
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@Override
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public int getItemViewType(int position) {
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if (position == getPositionForSection(position)) {
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return TYPE_NORMAL;
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}
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return TYPE_HEADER;
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}
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@Override
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public void changeCursor(Cursor cursor) {
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final Cursor old = swapCursor(cursor);
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if (old != null) {
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old.close();
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}
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}
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@Override
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public Cursor swapCursor(Cursor newCursor) {
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if (getCursor() != null) {
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getCursor().unregisterDataSetObserver(mDataSetObserver);
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}
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final Cursor oldCursor = super.swapCursor(newCursor);
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calculateSectionHeaders();
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if (newCursor != null) {
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newCursor.registerDataSetObserver(mDataSetObserver);
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}
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return oldCursor;
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}
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}
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