如何在媒体播放器应用程序中删除此错误？

Question

我正在 android 中制作一个媒体播放器应用程序，我被这个错误困住了，任何人都可以帮助我解决这个问题。 代码是这样的-

private void loadAudio() {
            ContentResolver contentResolver = getContentResolver();

            Uri uri = MediaStore.Audio.Media.EXTERNAL_CONTENT_URI;
            String selection = MediaStore.Audio.Media.IS_MUSIC + "!= 0";
            String sortOrder = MediaStore.Audio.Media.TITLE + " ASC";
            Cursor cursor = contentResolver.query(uri, null, selection, null, sortOrder);

            if (cursor != null && cursor.getCount() > 0) {
                audioList = new ArrayList<>();
                while (cursor.moveToNext()) {
                    data = cursor.getString(cursor.getColumnIndex(MediaStore.Audio.Media.DATA));
                     title = cursor.getString(cursor.getColumnIndex(MediaStore.Audio.Media.TITLE));
                     album = cursor.getString(cursor.getColumnIndex(MediaStore.Audio.Media.ALBUM));
                     artist = cursor.getString(cursor.getColumnIndex(MediaStore.Audio.Media.ARTIST));

                    // Save to audioList
                    audioList.add(new MediaStore.Audio(data,title,album,artist));
                }
            }
            cursor.close();
        }

错误在这一行 - audioList.add(new MediaStore.Audio(data,title,album,artist)); 错误说我无法向此方法添加字符串

Answer 1

您需要创建您已创建的新音频对象，而不是 MediaStore.Audio()。如下所示

//需要做什么，这里Audio是你的pojo类

audioList.add(new Audio(data,title,album,artist));

//你在做什么

audioList.add(new MediaStore.Audio(data, title,album,artist));