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即時通訊嘗試從隱藏目錄中獲取所有文件。但它沒有顯示任何文件。 請幫我解決這個問題。android：從隱藏目錄中獲取文件列表
public class Images extends Fragment {
private static final String WHATSAPP_STATUSES_LOCATION_L = Environment.getExternalStorageDirectory().toString() + "/WhatsApp/Media/.Statuses/";
private RecyclerView mRecyclerViewMediaList;
private LinearLayoutManager mLinearLayoutManager;
public Images() {
// Required empty public constructor
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
View v = inflater.inflate(R.layout.images, container, false);
mRecyclerViewMediaList = (RecyclerView) v.findViewById(R.id.recyclerViewMedia);
mLinearLayoutManager = new LinearLayoutManager(getContext());
mRecyclerViewMediaList.setLayoutManager(mLinearLayoutManager);
RecyclerViewMediaAdapter recyclerViewMediaAdapter = new RecyclerViewMediaAdapter(this.getListFiles(new File(WHATSAPP_STATUSES_LOCATION_L)), getActivity());
mRecyclerViewMediaList.setAdapter(recyclerViewMediaAdapter);
return v;
}
/**
* get all the files in specified directory
*
* @param parentDir
* @return
*/
private ArrayList<File> getListFiles(File parentDir) {
Log.e("getpath: ", String.valueOf(parentDir));
ArrayList<File> inFiles = new ArrayList<File>();
File[] files;
files = parentDir.listFiles();
Log.e("Files: ", String.valueOf(files));
if (files != null) {
for (File file : files) {
if (file.getName().endsWith(".jpg")
// || file.getName().endsWith(".gif") ||
// file.getName().endsWith(".mp4")
) {
if (!inFiles.contains(file))
inFiles.add(file);
}
}
Log.e("getListFiles: ", String.valueOf(inFiles));
}
return inFiles;
}
}
logcat的顯示
08-05 11:17:12.517 32636-32636/? I/art: Late-enabling -Xcheck:jni
08-05 11:17:12.583 32636-32636/rubin.whatsstatus D/LenovoAppIconTheme: ExtraResources;cleanCachedIcon;clear cache..
08-05 11:17:12.804 32636-32636/rubin.whatsstatus W/System: ClassLoader referenced unknown path: /data/app/rubin.whatsstatus-2/lib/arm
08-05 11:17:12.819 32636-32636/rubin.whatsstatus I/InstantRun: starting instant run server: is main process
08-05 11:17:12.903 32636-32636/rubin.whatsstatus W/art: Before Android 4.1, method android.graphics.PorterDuffColorFilter android.support.graphics.drawable.VectorDrawableCompat.updateTintFilter(android.graphics.PorterDuffColorFilter, android.content.res.ColorStateList, android.graphics.PorterDuff$Mode) would have incorrectly overridden the package-private method in android.graphics.drawable.Drawable
08-05 11:17:12.955 32636-32636/rubin.whatsstatus V/BoostFramework: mAcquireFunc method = public int com.qualcomm.qti.Performance.perfLockAcquire(int,int[])
08-05 11:17:12.955 32636-32636/rubin.whatsstatus V/BoostFramework: mReleaseFunc method = public int com.qualcomm.qti.Performance.perfLockRelease()
08-05 11:17:12.956 32636-32636/rubin.whatsstatus V/BoostFramework: mAcquireTouchFunc method = public int com.qualcomm.qti.Performance.perfLockAcquireTouch(android.view.MotionEvent,android.util.DisplayMetrics,int,int[])
08-05 11:17:12.956 32636-32636/rubin.whatsstatus V/BoostFramework: mIOPStart method = public int com.qualcomm.qti.Performance.perfIOPrefetchStart(int,java.lang.String)
08-05 11:17:12.956 32636-32636/rubin.whatsstatus V/BoostFramework: mIOPStop method = public int com.qualcomm.qti.Performance.perfIOPrefetchStop()
08-05 11:17:12.958 32636-32636/rubin.whatsstatus V/BoostFramework: BoostFramework() : mPerf = [email protected]
08-05 11:17:12.958 32636-32636/rubin.whatsstatus V/BoostFramework: BoostFramework() : mPerf = [email protected]
08-05 11:17:13.123 32636-32668/rubin.whatsstatus I/Adreno: QUALCOMM build : 5817cca, Ie9c95840c4
Build Date : 03/26/17
OpenGL ES Shader Compiler Version: XE031.09.00.03
Local Branch :
Remote Branch : refs/tags/AU_LINUX_ANDROID_LA.UM.5.5.R1.07.00.00.269.021
Remote Branch : NONE
Reconstruct Branch : NOTHING
08-05 11:17:13.132 32636-32668/rubin.whatsstatus I/OpenGLRenderer: Initialized EGL, version 1.4
08-05 11:17:13.132 32636-32668/rubin.whatsstatus D/OpenGLRenderer: Swap behavior 1
08-05 11:17:13.161 32636-32636/rubin.whatsstatus W/art: Before Android 4.1, method int android.support.v7.widget.ListViewCompat.lookForSelectablePosition(int, boolean) would have incorrectly overridden the package-private method in android.widget.ListView
08-05 11:17:15.208 32636-32636/rubin.whatsstatus V/BoostFramework: BoostFramework() : mPerf = [email protected]
08-05 11:17:15.208 32636-32636/rubin.whatsstatus V/BoostFramework: BoostFramework() : mPerf = [email protected]
08-05 11:17:15.235 32636-32636/rubin.whatsstatus V/BoostFramework: BoostFramework() : mPerf = [email protected]
08-05 11:17:15.382 32636-32636/rubin.whatsstatus V/BoostFramework: BoostFramework() : mPerf = [email protected]
08-05 11:17:15.382 32636-32636/rubin.whatsstatus V/BoostFramework: BoostFramework() : mPerf = [email protected]
08-05 11:17:15.412 32636-32636/rubin.whatsstatus E/getpath:: /storage/emulated/0/WhatsApp/Media/.Statuses
08-05 11:17:15.415 32636-32636/rubin.whatsstatus E/Files:: null
和目錄不是空的，我檢查過我的文件管理器 
從文件管理器的路徑是 
您是否檢查路徑os是否正確？ –
@ H.Brooks先生，我添加了另一個路徑的截圖，請檢查一下，先生 –