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/*
* Copyright (C) 2008 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.music;
import android.database.Cursor;
import android.provider.MediaStore;
import android.widget.AlphabetIndexer;
/**
* Handles comparisons in a different way because the Album, Song and Artist name
* are stripped of some prefixes such as "a", "an", "the" and some symbols.
*
*/
class MusicAlphabetIndexer extends AlphabetIndexer {
public MusicAlphabetIndexer(Cursor cursor, int sortedColumnIndex, CharSequence alphabet) {
super(cursor, sortedColumnIndex, alphabet);
}
@Override
protected int compare(String word, String letter) {
String wordKey = MediaStore.Audio.keyFor(word);
String letterKey = MediaStore.Audio.keyFor(letter);
if (wordKey.startsWith(letter)) {
return 0;
} else {
return wordKey.compareTo(letterKey);
}
}
}
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