安卓：歌曲都没有显示在4.4.4 [英] Android: Songs are not showing in 4.4.4

问题描述

这code是工作在4.3和4.2，但是它没有得到歌曲4.4.4 Motorolla摩托摹设备。

This code is working in 4.3 and 4.2 but it is not getting songs from 4.4.4 Motorolla Moto G device.

下面是我的code。

最后弦乐MEDIA_PATH = Environment.getExternalStorageDirectory（）             .getPath（）+/; 私人的ArrayList> songsList =新的ArrayList>（）; 公共无效BindAllSongs（）{
        / * 的制作自定义绘制* /

final String MEDIA_PATH = Environment.getExternalStorageDirectory() .getPath() + "/"; private ArrayList> songsList = new ArrayList>(); public void BindAllSongs() {
/* Making custom drawable */

    String selection = MediaStore.Audio.Media.IS_MUSIC + " != 0";

    final String[] projection = new String[] {
            MediaStore.Audio.Media.DISPLAY_NAME,
            MediaStore.Audio.Media.ARTIST,
            MediaStore.Audio.Media.DATA,
            MediaStore.Audio.Media.DURATION};
            final String sortOrder = MediaStore.Audio.AudioColumns.TITLE
                    + " COLLATE LOCALIZED ASC";
            try {
                // the uri of the table that we want to query
                Uri uri = android.provider.MediaStore.Audio.Media.EXTERNAL_CONTENT_URI;
                // query the db

                cursor = context.getContentResolver().query(uri,
                        projection, selection, null, sortOrder);
                if (cursor != null) {

                    cursor.moveToFirst();

                    while (!cursor.isAfterLast()) { 

                        String songTitle = cursor.getString(0);
                        String songArtist = cursor.getString(1);   
                        String songData = cursor.getString(2);
                        String duration = cursor.getString(3);
                        HashMap<String, String> songMap = new HashMap<String, String>();                     
                        songMap.put("songTitle", songTitle);
                        songMap.put("songDuration", duration);
                        songMap.put("songAuthor", songArtist);
                        songMap.put("songPath", songData);
                        songsList.add(songMap);             
                        cursor.moveToNext();
                    }
                }
            } catch (Exception ex) {
            } finally {
                if(cursor == null)
                {
                    AlertDialog("No Song Found from your Device");
                }
                else if (cursor !=null)
                {
                    AlertDialog(String.valueOf(cursor.getCount()) + " Song Found");
                }

                if (cursor != null) {
                    cursor.close();
                }
            }*

这code没有得到摩托罗拉摹4.4.4.How任何一首歌曲可以解决这个问题？

this code is not getting any song from Motorola G 4.4.4.How can solve this problem?

推荐答案

我已经在它加入的查询，而不是比较扩展解决了这个问题。

I have solved this problem by adding query in it instead of comparing extension.

这篇关于安卓：歌曲都没有显示在4.4.4的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！