Export/import preferences to/from file

build.gradle

@@ -1,6 +1,6 @@
 ext {
     def abi = project.properties['ABI']
-    VERSION_CODE = 173
+    VERSION_CODE = 174
     VERSION_NAME = "1.8.7"
     SDK_MIN_VERSION = 23
     SDK_TARGET_VERSION = 30

build.sh

@@ -30,7 +30,7 @@ build_apk() {
         abi='armeabi-v7a'
     fi
 
-    ./gradlew clean fermata:bundleRelease -PABI=$abi -PAPP_ID_SFX=$APP_ID_SFX
+    ./gradlew clean fermata:bundleAutoRelease -PABI=$abi -PAPP_ID_SFX=$APP_ID_SFX
     bundletool_universal ./fermata/build/outputs/bundle/autoRelease/fermata-*-release.aab -universal-$sfx -release
     mv ./fermata/build/outputs/bundle/autoRelease/fermata-*.apk "$DEST_DIR"
 }

fermata/src/main/java/me/aap/fermata/media/pref/FoldersPrefs.java

@@ -2,7 +2,6 @@
 
 import androidx.annotation.NonNull;
 
-import me.aap.utils.function.BooleanSupplier;
 import me.aap.utils.function.Supplier;
 
 import me.aap.utils.pref.PreferenceStore;

fermata/src/main/java/me/aap/fermata/ui/fragment/FoldersFragment.java

@@ -1,18 +1,15 @@
 package me.aap.fermata.ui.fragment;
 
-import static android.content.Context.UI_MODE_SERVICE;
 import static android.content.Intent.FLAG_GRANT_READ_URI_PERMISSION;
-import static android.content.res.Configuration.UI_MODE_TYPE_NORMAL;
+import static me.aap.fermata.util.Utils.isSafSupported;
 import static me.aap.fermata.vfs.FermataVfsManager.GDRIVE_ID;
 import static me.aap.fermata.vfs.FermataVfsManager.M3U_ID;
 import static me.aap.fermata.vfs.FermataVfsManager.SFTP_ID;
 import static me.aap.fermata.vfs.FermataVfsManager.SMB_ID;
 import static me.aap.utils.async.Completed.completed;
 import static me.aap.utils.function.ResultConsumer.Cancel.isCancellation;
 
-import android.app.UiModeManager;
 import android.content.ActivityNotFoundException;
-import android.content.Context;
 import android.content.Intent;
 import android.net.Uri;
 import android.view.View;
@@ -130,7 +127,7 @@ public void addFolder() {
 			b.setTitle(R.string.add_folder);
 			b.setSelectionHandler(this::addFolder);
 			b.addItem(R.id.vfs_file_system, R.string.vfs_file_system);
-			if (isContentSupported()) b.addItem(R.id.vfs_content, R.string.vfs_content);
+			if (isSafSupported(a)) b.addItem(R.id.vfs_content, R.string.vfs_content);
 			b.addItem(R.id.vfs_sftp, R.string.vfs_sftp);
 			b.addItem(R.id.vfs_smb, R.string.vfs_smb);
 			b.addItem(R.id.vfs_gdrive, R.string.vfs_gdrive);
@@ -164,16 +161,6 @@ private boolean addFolder(OverlayMenuItem item) {
 		return false;
 	}
 
-	private boolean isContentSupported() {
-		MainActivityDelegate a = getMainActivity();
-		if (a.isCarActivity()) return false;
-		UiModeManager umm = (UiModeManager) a.getContext().getSystemService(UI_MODE_SERVICE);
-		if (umm.getCurrentModeType() != UI_MODE_TYPE_NORMAL) return false;
-		Intent i = new Intent(Intent.ACTION_OPEN_DOCUMENT_TREE);
-		Context ctx = getContext();
-		return (ctx != null) && (i.resolveActivity(ctx.getPackageManager()) != null);
-	}
-
 	private void addFolderIntent() {
 		try {
 			getMainActivity().startActivityForResult(() -> new Intent(Intent.ACTION_OPEN_DOCUMENT_TREE))

fermata/src/main/java/me/aap/fermata/ui/fragment/SettingsFragment.java

@@ -1,5 +1,8 @@
 package me.aap.fermata.ui.fragment;
 
+import static android.os.Build.VERSION.SDK_INT;
+import static android.os.Build.VERSION_CODES.N;
+import static java.nio.charset.StandardCharsets.UTF_8;
 import static me.aap.fermata.media.pref.MediaPrefs.MEDIA_ENG_EXO;
 import static me.aap.fermata.media.pref.MediaPrefs.MEDIA_ENG_MP;
 import static me.aap.fermata.media.pref.MediaPrefs.MEDIA_ENG_VLC;
@@ -14,6 +17,10 @@
 import static me.aap.fermata.ui.activity.MainActivityPrefs.VOICE_CONTROl_M;
 import static me.aap.utils.ui.UiUtils.ID_NULL;
 
+import android.app.Activity;
+import android.content.Context;
+import android.content.Intent;
+import android.net.Uri;
 import android.os.Bundle;
 import android.view.LayoutInflater;
 import android.view.View;
@@ -22,11 +29,20 @@
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
 import androidx.annotation.StringRes;
+import androidx.documentfile.provider.DocumentFile;
 import androidx.recyclerview.widget.LinearLayoutManager;
 import androidx.recyclerview.widget.RecyclerView;
 
+import java.io.File;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.text.SimpleDateFormat;
+import java.util.ArrayList;
+import java.util.Date;
 import java.util.List;
 import java.util.Locale;
+import java.util.zip.ZipInputStream;
+import java.util.zip.ZipOutputStream;
 
 import me.aap.fermata.BuildConfig;
 import me.aap.fermata.FermataApplication;
@@ -41,17 +57,24 @@
 import me.aap.fermata.ui.activity.MainActivityDelegate;
 import me.aap.fermata.ui.activity.MainActivityListener;
 import me.aap.fermata.ui.activity.MainActivityPrefs;
+import me.aap.fermata.util.Utils;
+import me.aap.utils.app.App;
 import me.aap.utils.function.BooleanSupplier;
 import me.aap.utils.function.Consumer;
 import me.aap.utils.function.DoubleSupplier;
 import me.aap.utils.function.IntSupplier;
+import me.aap.utils.holder.BooleanHolder;
+import me.aap.utils.log.Log;
 import me.aap.utils.misc.ChangeableCondition;
 import me.aap.utils.pref.PrefCondition;
+import me.aap.utils.pref.PrefUtils;
 import me.aap.utils.pref.PreferenceSet;
 import me.aap.utils.pref.PreferenceStore;
 import me.aap.utils.pref.PreferenceStore.Pref;
 import me.aap.utils.pref.PreferenceView;
 import me.aap.utils.pref.PreferenceViewAdapter;
+import me.aap.utils.ui.UiUtils;
+import me.aap.utils.ui.fragment.FilePickerFragment;
 
 /**
  * @author Andrey Pavlenko
@@ -499,6 +522,25 @@ private PreferenceViewAdapter createAdapter() {
 		addAddons(set);
 
 		sub1 = set.subSet(o -> o.title = R.string.other);
+		if (!a.isCarActivity() && Utils.isSafSupported(a)) {
+			BooleanHolder reqPerm = new BooleanHolder(true);
+			sub1.addButton(o -> {
+				o.title = R.string.export_prefs;
+				o.subtitle = R.string.export_prefs_sub;
+				o.onClick = this::exportPrefs;
+			});
+			sub1.addButton(o -> {
+				o.title = R.string.import_prefs;
+				o.subtitle = R.string.import_prefs_sub;
+				o.onClick = () -> {
+					if (reqPerm.value) {
+						reqPerm.value = false;
+						if (FilePickerFragment.requestManageAllFilesPerm(a.getContext())) return;
+					}
+					importPrefs();
+				};
+			});
+		}
 		sub1.addBooleanPref(o -> {
 			o.store = a.getPrefs();
 			o.pref = MainActivityPrefs.CHECK_UPDATES;
@@ -619,6 +661,105 @@ private void addAddons(PreferenceSet set) {
 		}
 	}
 
+	private void exportPrefs() {
+		MainActivityDelegate a = getMainActivity();
+		a.startActivityForResult(() -> new Intent(Intent.ACTION_OPEN_DOCUMENT_TREE))
+				.onCompletion((d, err) -> {
+					Context ctx = a.getContext();
+
+					if (err != null) {
+						UiUtils.showAlert(ctx, ctx.getString(R.string.export_prefs_failed, err));
+						return;
+					}
+
+					if (d == null) return;
+					Uri uri = d.getData();
+					if (uri == null) return;
+
+					try {
+						DocumentFile dir = DocumentFile.fromTreeUri(ctx, uri);
+						if (dir == null) return;
+
+						File prefsDir = PrefUtils.getSharedPrefsFile(ctx, "fermata").getParentFile();
+						File[] files = (prefsDir == null) ? null
+								: prefsDir.listFiles(n -> !n.getName().equals("image-cache.xml"));
+
+						if ((files == null) || (files.length == 0)) {
+							UiUtils.showAlert(ctx, R.string.prefs_not_found);
+							return;
+						}
+
+						SimpleDateFormat fmt = new SimpleDateFormat("ddMMyy", Locale.getDefault());
+						String pattern = "Fermata_prefs_" + fmt.format(new Date());
+						String name = pattern + ".zip";
+						for (int i = 1; dir.findFile(name) != null; i++) name = pattern + '_' + i + ".zip";
+						DocumentFile f = dir.createFile("application/zip", name);
+
+						if (f == null) {
+							UiUtils.showAlert(ctx, ctx.getString(R.string.export_prefs_failed,
+									"Failed to create file"));
+							return;
+						}
+
+						List<String> names = new ArrayList<>(files.length);
+
+						for (File pf : files) {
+							String n = pf.getName();
+							if (n.endsWith(".xml")) names.add(n.substring(0, n.length() - 4));
+						}
+
+						try (OutputStream os = ctx.getContentResolver().openOutputStream(f.getUri());
+								 ZipOutputStream zos = (SDK_INT >= N) ? new ZipOutputStream(os, UTF_8)
+										 : new ZipOutputStream(os)) {
+							PrefUtils.exportSharedPrefs(ctx, names, zos);
+						}
+
+						UiUtils.showInfo(ctx, ctx.getString(R.string.export_prefs_ok, f.getName()));
+					} catch (Exception ex) {
+						Log.e(ex, "Failed to export preferences");
+						UiUtils.showAlert(ctx, ctx.getString(R.string.export_prefs_failed, ex));
+					}
+				});
+	}
+
+	private void importPrefs() {
+		MainActivityDelegate a = getMainActivity();
+		a.startActivityForResult(() -> new Intent(Intent.ACTION_OPEN_DOCUMENT)
+				.setType("application/zip"))
+				.onCompletion((d, err) -> {
+					Context ctx = a.getContext();
+
+					if (err != null) {
+						UiUtils.showAlert(ctx, ctx.getString(R.string.import_prefs_failed, err));
+						return;
+					}
+
+					if (d == null) return;
+					Uri uri = d.getData();
+					if (uri == null) return;
+
+					try {
+						DocumentFile f = DocumentFile.fromSingleUri(ctx, uri);
+						if (f == null) return;
+
+						try (InputStream is = ctx.getContentResolver().openInputStream(f.getUri());
+								 ZipInputStream zis = (SDK_INT >= N) ? new ZipInputStream(is, UTF_8)
+										 : new ZipInputStream(is)) {
+							PrefUtils.importSharedPrefs(ctx, zis);
+						}
+
+						UiUtils.showInfo(ctx, ctx.getString(R.string.import_prefs_ok)).thenRun(() -> {
+							App.get().getHandler().postDelayed(() -> System.exit(0), 1000);
+							if (ctx instanceof Activity) ((Activity) ctx).finishAffinity();
+							else System.exit(0);
+						});
+					} catch (Exception ex) {
+						Log.e(ex, "Failed to export preferences");
+						UiUtils.showAlert(ctx, ctx.getString(R.string.import_prefs_failed, ex));
+					}
+				});
+	}
+
 	private static final class AddonPrefsBuilder implements Consumer<PreferenceView.Opts>, AddonManager.Listener {
 		private final AddonManager amgr;
 		private final AddonInfo info;

fermata/src/main/java/me/aap/fermata/util/Utils.java

@@ -1,14 +1,20 @@
 package me.aap.fermata.util;
 
+import static android.content.Context.UI_MODE_SERVICE;
+import static android.content.res.Configuration.UI_MODE_TYPE_NORMAL;
+
+import android.app.UiModeManager;
 import android.content.ContentResolver;
 import android.content.Context;
+import android.content.Intent;
 import android.content.res.Resources;
 import android.net.Uri;
 
 import com.google.android.play.core.splitcompat.SplitCompat;
 
 import me.aap.fermata.BuildConfig;
 import me.aap.fermata.R;
+import me.aap.fermata.ui.activity.MainActivityDelegate;
 import me.aap.utils.io.FileUtils;
 import me.aap.utils.net.http.HttpFileDownloader;
 import me.aap.utils.ui.notif.HttpDownloadStatusListener;
@@ -51,4 +57,13 @@ public static Context dynCtx(Context ctx) {
 		if (!BuildConfig.AUTO) SplitCompat.install(ctx);
 		return ctx;
 	}
+
+	public static boolean isSafSupported(MainActivityDelegate a) {
+		if (a.isCarActivity()) return false;
+		Context ctx = a.getContext();
+		UiModeManager umm = (UiModeManager) a.getContext().getSystemService(UI_MODE_SERVICE);
+		if (umm.getCurrentModeType() != UI_MODE_TYPE_NORMAL) return false;
+		Intent i = new Intent(Intent.ACTION_OPEN_DOCUMENT_TREE);
+		return i.resolveActivity(ctx.getPackageManager()) != null;
+	}
 }

fermata/src/main/res/values-ru/strings.xml

@@ -257,6 +257,15 @@
     <string name="check_updates">Проверять наличие обновлений при старте</string>
     <string name="update">Обновление</string>
     <string name="update_question">Доступна новая версия %1$s.\nХотите обновить приложение?</string>
+    <string name="export_prefs">Экспортировать настройки в файл</string>
+    <string name="export_prefs_sub">Экспортировать настройки, папки, плейлисты и т.д. в файл</string>
+    <string name="export_prefs_ok">Настройки сохранены в файле %1$s.</string>
+    <string name="export_prefs_failed">Не удалось экспортировать настройки: %1$s</string>
+    <string name="import_prefs">Импортировать настройки из файла</string>
+    <string name="import_prefs_sub">Импортировать, ранее экспортированные, настройки из файла</string>
+    <string name="import_prefs_ok">Настройки успешно импортированы.\nПожалуйста, перезапустите приложение.</string>
+    <string name="import_prefs_failed">Не удалось импортировать настройки: %1$s</string>
+    <string name="prefs_not_found">Настройки не найдены</string>
 
     <string name="about">О приложении</string>
     <string name="about_html"><![CDATA[<H1 align="center">Fermata Media Player</H1>

fermata/src/main/res/values/strings.xml

@@ -276,6 +276,15 @@
     <string name="check_updates">Check for updates on startup</string>
     <string name="update">Update</string>
     <string name="update_question">New version %1$s is available.\nWould you like to update the app?</string>
+    <string name="export_prefs">Export preferences to file</string>
+    <string name="export_prefs_sub">Export settings, folders, playlists etc. to file</string>
+    <string name="export_prefs_ok">Preferences have been saved in file %1$s.</string>
+    <string name="export_prefs_failed">Failed to export preferences: %1$s</string>
+    <string name="import_prefs">Import preferences from file</string>
+    <string name="import_prefs_sub">Import, previously exported, preferences from file</string>
+    <string name="import_prefs_ok">Preferences have been successfully imported.\nPlease, restart the application.</string>
+    <string name="import_prefs_failed">Failed to import preferences: %1$s</string>
+    <string name="prefs_not_found">No preferences found</string>
 
     <string name="about">About</string>
     <string name="about_html"><![CDATA[<H1 align="center">Fermata Media Player</H1>