我的代码只从内部存储中获取 mp3 文件，而不是从 SD 卡中获取

Question

public ArrayList<File> fetchSongs(File file){
        ArrayList arrayList = new ArrayList();
        File[] songs = file.listFiles();
        if (songs != null){
            for (File myFile: songs){
                if (myFile.isDirectory() && !myFile.isHidden()){
                    arrayList.addAll(fetchSongs(myFile));
                }else{
                    if (myFile.getName().endsWith(".mp3") && !myFile.getName().startsWith(".")){
                        arrayList.add(myFile);
                    }
                }
            }
        }
        return arrayList;
    }

I wrote this code for my music player to fetch all ".mp3" files from the storage but it doesn't fetch from SD card. Though it works fine with internal storage. Your help will be much appreciated. Thankyou

Answer 1

Double check that you aren't being affected by mixed case names, try changing the test to lowercase name:

if (myFile.getName().toLowerCase().endsWith(".mp3") && // ...