音乐本地扫描工具类,返回一个集合

2017-07-05  本文已影响0人  庞哈哈哈12138

一个简单的扫描本地音乐工具类 返回一个集合

package com.panghaha.it.mymusicplayerdemo;

/***
 * ━━━━ Code is far away from ━━━━━━
 *     ()      ()
 *     ( )    ( )
 *     ( )    ( )
 *   ┏┛┻━━━┛┻┓
 *   ┃   ━   ┃
 *   ┃ ┳┛ ┗┳ ┃
 *   ┃   ┻   ┃
 *   ┗━┓   ┏━┛
 *     ┃   ┃
 *     ┃   ┗━━━┓
 *     ┃       ┣┓
 *     ┃       ┏┛
 *     ┗┓┓┏━┳┓┏┛
 *      ┃┫┫ ┃┫┫
 *      ┗┻┛ ┗┻┛
 * ━━━━ bug with the more protecting ━━━
 * <p/>
 * Created by PangHaHa12138 on 2017/7/4.
 */

import android.content.Context;
import android.database.Cursor;
import android.provider.MediaStore;

import java.util.ArrayList;
import java.util.List;

/**
 * 音乐工具类,扫描系统里面的音频文件,返回一个list集合
 */
public class MusicUtils {

    public static List<Song> getMusicData(Context context) {
        List<Song> list = new ArrayList<Song>();
        // 媒体库查询语句(写一个工具类MusicUtils)
        Cursor cursor = context.getContentResolver().query(MediaStore.Audio.Media.EXTERNAL_CONTENT_URI, null, null,
                null, MediaStore.Audio.AudioColumns.IS_MUSIC);
        if (cursor != null) {
            while (cursor.moveToNext()) {
                Song song = new Song();
                song.song = cursor.getString(cursor.getColumnIndexOrThrow(MediaStore.Audio.Media.DISPLAY_NAME));
                song.singer = cursor.getString(cursor.getColumnIndexOrThrow(MediaStore.Audio.Media.ARTIST));
                song.path = cursor.getString(cursor.getColumnIndexOrThrow(MediaStore.Audio.Media.DATA));
                song.duration = cursor.getInt(cursor.getColumnIndexOrThrow(MediaStore.Audio.Media.DURATION));
                song.size = cursor.getLong(cursor.getColumnIndexOrThrow(MediaStore.Audio.Media.SIZE));
                if (song.size > 1000 * 800) {
                    // 注释部分是切割标题,分离出歌曲名和歌手 (本地媒体库读取的歌曲信息不规范)
                    if (song.song.contains("-")) {
                        String[] str = song.song.split("-");
                        song.singer = str[0];
                        song.song = str[1];
                    }
                    list.add(song);
                }
            }
            // 释放资源
            cursor.close();
        }

        return list;
    }

    /**
     * 定义一个方法用来格式化获取到的时间
     */
    public static String formatTime(int time) {
        if (time / 1000 % 60 < 10) {
            return time / 1000 / 60 + ":0" + time / 1000 % 60;

        } else {
            return time / 1000 / 60 + ":" + time / 1000 % 60;
        }

    }
}

Song类:

package com.panghaha.it.mymusicplayerdemo;

/***
 * ━━━━ Code is far away from ━━━━━━
 *     ()      ()
 *     ( )    ( )
 *     ( )    ( )
 *   ┏┛┻━━━┛┻┓
 *   ┃   ━   ┃
 *   ┃ ┳┛ ┗┳ ┃
 *   ┃   ┻   ┃
 *   ┗━┓   ┏━┛
 *     ┃   ┃
 *     ┃   ┗━━━┓
 *     ┃       ┣┓
 *     ┃       ┏┛
 *     ┗┓┓┏━┳┓┏┛
 *      ┃┫┫ ┃┫┫
 *      ┗┻┛ ┗┻┛
 * ━━━━ bug with the more protecting ━━━
 * <p/>
 * Created by PangHaHa12138 on 2017/7/4.
 */
public class Song {

    public String getSinger() {
        return singer;
    }

    public void setSinger(String singer) {
        this.singer = singer;
    }

    public String getSong() {
        return song;
    }

    public void setSong(String song) {
        this.song = song;
    }

    public String getPath() {
        return path;
    }

    public void setPath(String path) {
        this.path = path;
    }

    public int getDuration() {
        return duration;
    }

    public void setDuration(int duration) {
        this.duration = duration;
    }

    public long getSize() {
        return size;
    }

    public void setSize(long size) {
        this.size = size;
    }

    /** 歌手 */
     public String singer;
    /** 歌曲名 */
    public String song;
    /**歌曲的地址 */
    public String path;
    /**歌曲长度 */
    public int duration;
    /**歌曲的大小 */
    public long size;
}
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