mirror of https://github.com/KokaKiwi/BarInsta
77 lines
3.1 KiB
Java
77 lines
3.1 KiB
Java
package awais.instagrabber.utils;
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import android.os.Build;
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import android.os.Environment;
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import java.io.File;
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import java.util.Collections;
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import java.util.HashSet;
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import java.util.Set;
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import java.util.regex.Pattern;
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public class DirectoryUtils {
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private static final Pattern DIR_SEPORATOR = Pattern.compile("/");
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/**
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* From: https://stackoverflow.com/a/18871043/1436766
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*
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* Returns all available SD-Cards in the system (include emulated)
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* <p>
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* Warning: Hack! Based on Android source code of version 4.3 (API 18)
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* Because there is no standard way to get it.
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* TODO: Test on future Android versions 4.4+
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*
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* @return paths to all available SD-Cards in the system (include emulated)
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*/
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public static Set<String> getStorageDirectories() {
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// Final set of paths
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final Set<String> rv = new HashSet<>();
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// Primary physical SD-CARD (not emulated)
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final String rawExternalStorage = System.getenv("EXTERNAL_STORAGE");
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// All Secondary SD-CARDs (all exclude primary) separated by ":"
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final String rawSecondaryStoragesStr = System.getenv("SECONDARY_STORAGE");
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// Primary emulated SD-CARD
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final String rawEmulatedStorageTarget = System.getenv("EMULATED_STORAGE_TARGET");
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if (TextUtils.isEmpty(rawEmulatedStorageTarget)) {
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// Device has physical external storage; use plain paths.
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if (TextUtils.isEmpty(rawExternalStorage)) {
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// EXTERNAL_STORAGE undefined; falling back to default.
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rv.add("/storage/sdcard0");
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} else {
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rv.add(rawExternalStorage);
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}
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} else {
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// Device has emulated storage; external storage paths should have
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// userId burned into them.
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final String rawUserId;
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if (Build.VERSION.SDK_INT < Build.VERSION_CODES.JELLY_BEAN_MR1) {
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rawUserId = "";
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} else {
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final String path = Environment.getExternalStorageDirectory().getAbsolutePath();
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final String[] folders = DIR_SEPORATOR.split(path);
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final String lastFolder = folders[folders.length - 1];
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boolean isDigit = false;
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try {
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Integer.valueOf(lastFolder);
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isDigit = true;
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} catch (NumberFormatException ignored) {
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}
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rawUserId = isDigit ? lastFolder : "";
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}
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// /storage/emulated/0[1,2,...]
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if (TextUtils.isEmpty(rawUserId)) {
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rv.add(rawEmulatedStorageTarget);
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} else {
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rv.add(rawEmulatedStorageTarget + File.separator + rawUserId);
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}
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}
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// Add all secondary storages
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if (!TextUtils.isEmpty(rawSecondaryStoragesStr)) {
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// All Secondary SD-CARDs splited into array
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final String[] rawSecondaryStorages = rawSecondaryStoragesStr.split(File.pathSeparator);
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Collections.addAll(rv, rawSecondaryStorages);
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}
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return rv;
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}
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}
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