mirror of https://github.com/iSoron/uhabits.git
parent
96bdb42365
commit
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/*
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* Copyright (C) 2016 Álinson Santos Xavier <isoron@gmail.com>
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*
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* This file is part of Loop Habit Tracker.
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*
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* Loop Habit Tracker is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by the
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* Free Software Foundation, either version 3 of the License, or (at your
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* option) any later version.
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*
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* Loop Habit Tracker is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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package org.isoron.uhabits.activities.common.dialogs;
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import android.content.*;
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import android.support.annotation.*;
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import android.support.v7.app.*;
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import android.view.*;
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import android.view.WindowManager.*;
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import android.widget.*;
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import com.google.auto.factory.*;
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import org.isoron.uhabits.activities.*;
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import java.io.*;
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import java.util.*;
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/**
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* Dialog that allows the user to pick a file.
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*/
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@AutoFactory(allowSubclasses = true)
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public class FilePickerDialog implements AdapterView.OnItemClickListener
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{
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private static final String PARENT_DIR = "..";
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private final Context context;
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private ListView list;
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private AppCompatDialog dialog;
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private File currentPath;
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private OnFileSelectedListener listener;
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public FilePickerDialog(@Provided @ActivityContext Context context,
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File initialDirectory)
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{
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this.context = context;
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list = new ListView(context);
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list.setOnItemClickListener(this);
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dialog = new AppCompatDialog(context);
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dialog.setContentView(list);
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dialog
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.getWindow()
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.setLayout(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT);
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navigateTo(initialDirectory);
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}
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public AppCompatDialog getDialog()
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{
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return dialog;
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}
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@Override
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public void onItemClick(AdapterView<?> parent,
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View view,
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int which,
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long id)
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{
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String filename = (String) list.getItemAtPosition(which);
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File file;
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if (filename.equals(PARENT_DIR)) file = currentPath.getParentFile();
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else file = new File(currentPath, filename);
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if (file.isDirectory())
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{
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navigateTo(file);
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}
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else
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{
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if (listener != null) listener.onFileSelected(file);
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dialog.dismiss();
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}
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}
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public void setListener(OnFileSelectedListener listener)
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{
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this.listener = listener;
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}
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public void show()
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{
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dialog.show();
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}
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@NonNull
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private String[] getFileList(File path, File[] dirs, File[] files)
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{
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int count = 0;
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int length = dirs.length + files.length;
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String[] fileList;
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if (path.getParentFile() == null || !path.getParentFile().canRead())
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{
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fileList = new String[length];
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}
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else
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{
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fileList = new String[length + 1];
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fileList[count++] = PARENT_DIR;
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}
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Arrays.sort(dirs);
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Arrays.sort(files);
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for (File dir : dirs)
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fileList[count++] = dir.getName();
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for (File file : files)
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fileList[count++] = file.getName();
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return fileList;
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}
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private void navigateTo(File path)
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{
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if (!path.exists()) return;
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File[] dirs = path.listFiles(new ReadableDirFilter());
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File[] files = path.listFiles(new RegularReadableFileFilter());
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if (dirs == null || files == null) return;
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this.currentPath = path;
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dialog.setTitle(currentPath.getPath());
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list.setAdapter(new FilePickerAdapter(getFileList(path, dirs, files)));
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}
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public interface OnFileSelectedListener
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{
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void onFileSelected(File file);
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}
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private static class ReadableDirFilter implements FileFilter
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{
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@Override
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public boolean accept(File file)
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{
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return (file.isDirectory() && file.canRead());
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}
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}
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private class FilePickerAdapter extends ArrayAdapter<String>
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{
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public FilePickerAdapter(@NonNull String[] fileList)
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{
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super(FilePickerDialog.this.context,
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android.R.layout.simple_list_item_1, fileList);
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}
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@Override
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public View getView(int pos, View view, ViewGroup parent)
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{
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view = super.getView(pos, view, parent);
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TextView tv = (TextView) view;
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tv.setSingleLine(true);
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return view;
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}
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}
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private class RegularReadableFileFilter implements FileFilter
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{
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@Override
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public boolean accept(File file)
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{
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return !file.isDirectory() && file.canRead();
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}
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}
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}
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@ -1,106 +0,0 @@
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/*
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* Copyright (C) 2016 Álinson Santos Xavier <isoron@gmail.com>
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*
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* This file is part of Loop Habit Tracker.
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*
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* Loop Habit Tracker is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by the
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* Free Software Foundation, either version 3 of the License, or (at your
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* option) any later version.
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*
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* Loop Habit Tracker is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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package org.isoron.uhabits.io;
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import android.content.*;
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import android.os.*;
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import android.support.annotation.*;
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import android.util.*;
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import org.isoron.uhabits.*;
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import java.io.*;
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import javax.inject.*;
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import static android.support.v4.content.ContextCompat.*;
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/**
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* A DirFinder locates suitable directories for storing user files.
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*/
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public class DirFinder
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{
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private static final String TAG = "DirFinder";
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private final Context context;
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@Inject
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public DirFinder(@AppContext Context context)
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{
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this.context = context;
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}
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@Nullable
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public File findSDCardDir(@Nullable String subpath)
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{
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File parents[] = new File[]{
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Environment.getExternalStorageDirectory()
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};
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return findDir(parents, subpath);
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}
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@Nullable
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public File findStorageDir(@Nullable String relativePath)
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{
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File potentialParents[] = getExternalFilesDirs(context, null);
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if (potentialParents == null)
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{
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Log.e(TAG, "getFilesDir: getExternalFilesDirs returned null");
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return null;
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}
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return findDir(potentialParents, relativePath);
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}
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@Nullable
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private File findDir(@NonNull File potentialParents[],
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@Nullable String relativePath)
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{
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if (relativePath == null) relativePath = "";
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File chosenDir = null;
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for (File dir : potentialParents)
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{
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if (dir == null || !dir.canWrite()) continue;
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chosenDir = dir;
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break;
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}
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if (chosenDir == null)
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{
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Log.e(TAG,
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"getDir: all potential parents are null or non-writable");
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return null;
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}
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File dir = new File(
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String.format("%s/%s/", chosenDir.getAbsolutePath(), relativePath));
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if (!dir.exists() && !dir.mkdirs())
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{
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Log.e(TAG,
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"getDir: chosen dir does not exist and cannot be created");
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return null;
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}
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return dir;
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}
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}
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