Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
/*
 * Copyright (C) 2014 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.
 */

import android.support.annotation.NonNull;

public class Main {
    private static final char LEAF_SEPARATOR = '|';

    /**
     * Extracts unique musicID from the mediaID. mediaID is, by this sample's convention, a
     * concatenation of category (eg "by_genre"), categoryValue (eg "Classical") and unique
     * musicID. This is necessary so we know where the user selected the music from, when the music
     * exists in more than one music list, and thus we are able to correctly build the playing queue.
     *
     * @param mediaID that contains the musicID
     * @return musicID
     */
    public static String extractMusicIDFromMediaID(@NonNull String mediaID) {
        int pos = mediaID.indexOf(LEAF_SEPARATOR);
        if (pos >= 0) {
            return mediaID.substring(pos + 1);
        }
        return null;
    }
}