首页 > 其他 > 详细

1600802039

时间:2018-12-11 19:27:08      阅读:173      评论:0      收藏:0      [点我收藏+]

 

实现功能:

1.实现音乐的播放,暂停,上一首,下一首

2.生成播放列表

3.提示音乐信息

4.显示播放进度条,且进度条可拖拽

实现截图:

技术分享图片

技术分享图片

技术分享图片

关键代码分析

public ArrayList<MusicMedia> scanAllAudioFiles(){

        ArrayList<MusicMedia> mylist = new ArrayList<MusicMedia>();


        Cursor cursor = getContentResolver().query(MediaStore.Audio.Media.EXTERNAL_CONTENT_URI, null, null, null, MediaStore.Audio.Media.DEFAULT_SORT_ORDER);

        if(cursor.moveToFirst()){
            while (!cursor.isAfterLast()) {

                int id = cursor.getInt(cursor.getColumnIndexOrThrow(MediaStore.Audio.Media._ID));

                String tilte = cursor.getString(cursor.getColumnIndexOrThrow(MediaStore.Audio.Media.TITLE));

                String album = cursor.getString(cursor.getColumnIndexOrThrow(MediaStore.Audio.Media.ALBUM));
                int albumId = cursor.getInt(cursor.getColumnIndex(MediaStore.Audio.Media.ALBUM_ID));

                String artist = cursor.getString(cursor.getColumnIndexOrThrow(MediaStore.Audio.Media.ARTIST));

                String url = cursor.getString(cursor.getColumnIndexOrThrow(MediaStore.Audio.Media.DATA));

                int duration = cursor.getInt(cursor.getColumnIndexOrThrow(MediaStore.Audio.Media.DURATION));

                Long size = cursor.getLong(cursor.getColumnIndexOrThrow(MediaStore.Audio.Media.SIZE));


                if (size >1024*800){
                    MusicMedia musicMedia = new MusicMedia();
                    musicMedia.setId(id);
                    musicMedia.setArtist(artist);
                    musicMedia.setSize(size);
                    musicMedia.setTitle(tilte);
                    musicMedia.setTime(duration);
                    musicMedia.setUrl(url);
                    musicMedia.setAlbum(album);
                    musicMedia.setAlbumId(albumId);

                    mylist.add(musicMedia);

                }
                cursor.moveToNext();
            }
        }
        return mylist;
    }

此段代码用于遍历sd卡的多媒体库,将所有音乐文件及其各种属性获取,并将其显示在列表中

代码链接:

https://git.dev.tencent.com/gao2039/1600802039.git

apk链接:

https://git.dev.tencent.com/gao2039/apk.git

 

1600802039

原文:https://www.cnblogs.com/gao98/p/10104321.html

(0)
(0)
   
举报
评论 一句话评论(0
关于我们 - 联系我们 - 留言反馈 - 联系我们:wmxa8@hotmail.com
© 2014 bubuko.com 版权所有
打开技术之扣,分享程序人生!