Androidの読み込みSD外部が動作していない

Question

外部SDから一部のファイルを読み込もうとしています。

final File externalStorage = Environment.getExternalStorageDirectory(); 

String list = "";// 
list+= "Listing all the files in SD: " + externalStorage.getAbsolutePath() + "\n"; 
Log.i("VVV", list); 

for (File file: externalStorage.listFiles()) { 
    Log.i("VVV", file.getAbsolutePath()); 
    list += file.getAbsolutePath() + "\n"; 
} 

私は外部SDを読み取ろうとしています。私はいつも/ storage/sdcardの代わりに/ emulate/0パスを取得するのではありません。

それは上記のコードのために出力されます：

01-22 19:07:55.852 23991-23991/forkandjoin.tvplayer I/VVV: Listing all the files in SD: /storage/emulated/0 
01-22 19:07:55.862 23991-23991/forkandjoin.tvplayer I/VVV: /storage/emulated/0/Samsung 
01-22 19:07:55.862 23991-23991/forkandjoin.tvplayer I/VVV: /storage/emulated/0/.face 
01-22 19:07:55.862 23991-23991/forkandjoin.tvplayer I/VVV: /storage/emulated/0/Music 
01-22 19:07:55.862 23991-23991/forkandjoin.tvplayer I/VVV: /storage/emulated/0/Podcasts 
01-22 19:07:55.862 23991-23991/forkandjoin.tvplayer I/VVV: /storage/emulated/0/Ringtones 
01-22 19:07:55.862 23991-23991/forkandjoin.tvplayer I/VVV: /storage/emulated/0/Alarms 
01-22 19:07:55.862 23991-23991/forkandjoin.tvplayer I/VVV: /storage/emulated/0/Notifications 
01-22 19:07:55.862 23991-23991/forkandjoin.tvplayer I/VVV: /storage/emulated/0/Pictures 
01-22 19:07:55.862 23991-23991/forkandjoin.tvplayer I/VVV: /storage/emulated/0/Movies 
01-22 19:07:55.862 23991-23991/forkandjoin.tvplayer I/VVV: /storage/emulated/0/Download 
01-22 19:07:55.862 23991-23991/forkandjoin.tvplayer I/VVV: /storage/emulated/0/DCIM 
01-22 19:07:55.862 23991-23991/forkandjoin.tvplayer I/VVV: /storage/emulated/0/Documents 
01-22 19:07:55.862 23991-23991/forkandjoin.tvplayer I/VVV: /storage/emulated/0/Android 
01-22 19:07:55.862 23991-23991/forkandjoin.tvplayer I/VVV: /storage/emulated/0/SMemo 
01-22 19:07:55.862 23991-23991/forkandjoin.tvplayer I/VVV: /storage/emulated/0/ATT Locker 
01-22 19:07:55.862 23991-23991/forkandjoin.tvplayer I/VVV: /storage/emulated/0/.wildtangent 
01-22 19:07:55.862 23991-23991/forkandjoin.tvplayer I/VVV: /storage/emulated/0/.profig.os 
01-22 19:07:55.862 23991-23991/forkandjoin.tvplayer I/VVV: /storage/emulated/0/WhatsApp 
01-22 19:07:55.862 23991-23991/forkandjoin.tvplayer I/VVV: /storage/emulated/0/com.facebook.orca 
01-22 19:07:55.862 23991-23991/forkandjoin.tvplayer I/VVV: /storage/emulated/0/.thumbnails 
01-22 19:07:55.862 23991-23991/forkandjoin.tvplayer I/VVV: /storage/emulated/0/Facebook Messenger 
01-22 19:07:55.862 23991-23991/forkandjoin.tvplayer I/VVV: /storage/emulated/0/PhotoEditor 
01-22 19:07:55.862 23991-23991/forkandjoin.tvplayer I/VVV: /storage/emulated/0/.facebook_cache 
01-22 19:07:55.862 23991-23991/forkandjoin.tvplayer I/VVV: /storage/emulated/0/Playlists 
01-22 19:07:55.862 23991-23991/forkandjoin.tvplayer I/VVV: /storage/emulated/0/wdh_update 
01-22 19:07:55.862 23991-23991/forkandjoin.tvplayer I/VVV: /storage/emulated/0/Skai 
01-22 19:07:55.862 23991-23991/forkandjoin.tvplayer I/VVV: /storage/emulated/0/com.qisi.sdk.file 
01-22 19:07:55.862 23991-23991/forkandjoin.tvplayer I/VVV: /storage/emulated/0/fujifilm 
01-22 19:07:55.862 23991-23991/forkandjoin.tvplayer I/VVV: /storage/emulated/0/com.facebook.katana 
01-22 19:07:55.862 23991-23991/forkandjoin.tvplayer I/VVV: /storage/emulated/0/IMO 
01-22 19:07:55.862 23991-23991/forkandjoin.tvplayer I/VVV: /storage/emulated/0/ialog.txt 

だから私は私が間違っているのかわかりませんか？

Answer 1

External storageはremovable storageではありません。コードが外部ストレージにアクセスしています。リムーバブルストレージ上の任意の場所へのファイルシステムアクセスはありません。 the Storage Access Frameworkを使用してユーザーに文書を開くように頼むことができ、ユーザーはリムーバブル記憶域上の文書を選択できます。