我即使使用Environment.getExternalStorageDirectory()
甚至直接使用/sdcard/
应用程序从手机的内部存储。我现在用摩托E用于测试SD卡没有得到访问的Android
请帮助获取数据后,面对持续的问题与访问SD卡
public class SongsManager {
final String MEDIA_PATH = new String(Environment.getExternalStorageDirectory().getPath());
private ArrayList<HashMap<String, String>> songsList = new ArrayList<HashMap<String, String>>();
// Constructor
public SongsManager(){
}
public ArrayList<HashMap<String, String>> getPlayList(){
File home = new File(MEDIA_PATH);
walkdir(home);
return songsList;
}
public void walkdir(File dir) {
String Pattern = ".mp3";
File listFile[] = dir.listFiles();
if (listFile != null) {
for (int i = 0; i < listFile.length; i++) {
if (listFile[i].isDirectory()) {
walkdir(listFile[i]);
} else {
if (listFile[i].getName().endsWith(Pattern)){
for (File file : dir.listFiles(new FileExtensionFilter())) {
HashMap<String, String> song = new HashMap<String, String>();
song.put("songTitle", file.getName().substring(0, (file.getName().length() - 4)));
song.put("songPath", file.getPath());
// Adding each song to SongList
songsList.add(song);
}
}
}
}
}
}
}
class FileExtensionFilter implements FilenameFilter {
public boolean accept(File dir, String name) {
return (name.endsWith(".mp3") || name.endsWith(".MP3"));
}
}
https://commonsware.com/blog/2014/04/09/storage-situation-removable-storage.html – CommonsWare
使用getAbsolutePath()后,它给出路径/ storage/emulate/0.Still not access SD卡。 –