backup/export und import

android/.idea/codeStyles/Project.xml

@@ -1,29 +1,113 @@
 <component name="ProjectCodeStyleConfiguration">
   <code_scheme name="Project" version="173">
-    <Objective-C-extensions>
+    <codeStyleSettings language="XML">
-      <file>
+      <arrangement>
-        <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="Import" />
+        <rules>
-        <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="Macro" />
+          <section>
-        <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="Typedef" />
+            <rule>
-        <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="Enum" />
+              <match>
-        <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="Constant" />
+                <AND>
-        <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="Global" />
+                  <NAME>xmlns:android</NAME>
-        <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="Struct" />
+                  <XML_ATTRIBUTE />
-        <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="FunctionPredecl" />
+                  <XML_NAMESPACE>^$</XML_NAMESPACE>
-        <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="Function" />
+                </AND>
-      </file>
+              </match>
-      <class>
+            </rule>
-        <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="Property" />
+          </section>
-        <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="Synthesize" />
+          <section>
-        <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="InitMethod" />
+            <rule>
-        <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="StaticMethod" />
+              <match>
-        <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="InstanceMethod" />
+                <AND>
-        <option name="com.jetbrains.cidr.lang.util.OCDeclarationKind" value="DeallocMethod" />
+                  <NAME>xmlns:.*</NAME>
-      </class>
+                  <XML_ATTRIBUTE />
-      <extensions>
+                  <XML_NAMESPACE>^$</XML_NAMESPACE>
-        <pair source="cpp" header="h" fileNamingConvention="NONE" />
+                </AND>
-        <pair source="c" header="h" fileNamingConvention="NONE" />
+              </match>
-      </extensions>
+              <order>BY_NAME</order>
-    </Objective-C-extensions>
+            </rule>
+          </section>
+          <section>
+            <rule>
+              <match>
+                <AND>
+                  <NAME>.*:id</NAME>
+                  <XML_ATTRIBUTE />
+                  <XML_NAMESPACE>http://schemas.android.com/apk/res/android</XML_NAMESPACE>
+                </AND>
+              </match>
+            </rule>
+          </section>
+          <section>
+            <rule>
+              <match>
+                <AND>
+                  <NAME>.*:name</NAME>
+                  <XML_ATTRIBUTE />
+                  <XML_NAMESPACE>http://schemas.android.com/apk/res/android</XML_NAMESPACE>
+                </AND>
+              </match>
+            </rule>
+          </section>
+          <section>
+            <rule>
+              <match>
+                <AND>
+                  <NAME>name</NAME>
+                  <XML_ATTRIBUTE />
+                  <XML_NAMESPACE>^$</XML_NAMESPACE>
+                </AND>
+              </match>
+            </rule>
+          </section>
+          <section>
+            <rule>
+              <match>
+                <AND>
+                  <NAME>style</NAME>
+                  <XML_ATTRIBUTE />
+                  <XML_NAMESPACE>^$</XML_NAMESPACE>
+                </AND>
+              </match>
+            </rule>
+          </section>
+          <section>
+            <rule>
+              <match>
+                <AND>
+                  <NAME>.*</NAME>
+                  <XML_ATTRIBUTE />
+                  <XML_NAMESPACE>^$</XML_NAMESPACE>
+                </AND>
+              </match>
+              <order>BY_NAME</order>
+            </rule>
+          </section>
+          <section>
+            <rule>
+              <match>
+                <AND>
+                  <NAME>.*</NAME>
+                  <XML_ATTRIBUTE />
+                  <XML_NAMESPACE>http://schemas.android.com/apk/res/android</XML_NAMESPACE>
+                </AND>
+              </match>
+              <order>ANDROID_ATTRIBUTE_ORDER</order>
+            </rule>
+          </section>
+          <section>
+            <rule>
+              <match>
+                <AND>
+                  <NAME>.*</NAME>
+                  <XML_ATTRIBUTE />
+                  <XML_NAMESPACE>.*</XML_NAMESPACE>
+                </AND>
+              </match>
+              <order>BY_NAME</order>
+            </rule>
+          </section>
+        </rules>
+      </arrangement>
+    </codeStyleSettings>
   </code_scheme>
 </component>

android/app/src/main/AndroidManifest.xml

@@ -24,6 +24,15 @@
             </intent-filter>
         </activity>
 
+        <provider
+            android:name="androidx.core.content.FileProvider"
+            android:authorities="com.blackforestbytes.simplecloudnotifier.fileprovider"
+            android:grantUriPermissions="true"
+            android:exported="false">
+            <meta-data android:name="android.support.FILE_PROVIDER_PATHS" android:resource="@xml/filepaths" />
+        </provider>
+
+
         <meta-data
             android:name="com.google.firebase.messaging.default_notification_icon"
             android:resource="@drawable/icon" />

android/app/src/main/java/com/blackforestbytes/simplecloudnotifier/model/CMessageList.java

@@ -35,6 +35,11 @@ public class CMessageList
     }
 
     private CMessageList()
+    {
+        reloadPrefs();
+    }
+
+    public void reloadPrefs()
     {
         synchronized (msg_lock)
         {

android/app/src/main/java/com/blackforestbytes/simplecloudnotifier/model/QueryLog.java

@@ -15,9 +15,9 @@ public class QueryLog
     private final static int MAX_HISTORY_SIZE = 192;
 
     private static QueryLog _instance;
-    public static QueryLog instance() { if (_instance == null) synchronized (QueryLog.class) { if (_instance == null) _instance = new QueryLog(); } return _instance; }
+    public static QueryLog inst() { if (_instance == null) synchronized (QueryLog.class) { if (_instance == null) _instance = new QueryLog(); } return _instance; }
 
-    private QueryLog(){ load(); }
+    private QueryLog(){ reloadPrefs(); }
 
     private final List<SingleQuery> history = new ArrayList<>();
 
@@ -50,7 +50,7 @@ public class QueryLog
         e.apply();
     }
 
-    public synchronized void load()
+    public synchronized void reloadPrefs()
     {
         try
         {

android/app/src/main/java/com/blackforestbytes/simplecloudnotifier/model/SCNSettings.java

@@ -62,6 +62,11 @@ public class SCNSettings
     // ------------------------------------------------------------
 
     public SCNSettings()
+    {
+        reloadPrefs();
+    }
+
+    public void reloadPrefs()
     {
         SharedPreferences sharedPref = SCNApp.getContext().getSharedPreferences("Config", Context.MODE_PRIVATE);
 

android/app/src/main/java/com/blackforestbytes/simplecloudnotifier/model/ServerCommunication.java

@@ -613,7 +613,7 @@ public class ServerCommunication
             LogLevel l = LogLevel.INFO;
 
             SingleQuery q = new SingleQuery(l, i, s, u, r, rc, "SUCCESS");
-            QueryLog.instance().add(q);
+            QueryLog.inst().add(q);
         }
         catch (Exception e2)
         {
@@ -644,7 +644,7 @@ public class ServerCommunication
             LogLevel l = isio?LogLevel.WARN:LogLevel.ERROR;
 
             SingleQuery q = new SingleQuery(l, i, s, u, r, rc, e.toString());
-            QueryLog.instance().add(q);
+            QueryLog.inst().add(q);
         }
         catch (Exception e2)
         {

android/app/src/main/java/com/blackforestbytes/simplecloudnotifier/service/FBMService.java

@@ -4,8 +4,6 @@ import android.util.Log;
 import android.widget.Toast;
 
 import com.blackforestbytes.simplecloudnotifier.SCNApp;
-import com.blackforestbytes.simplecloudnotifier.lib.datatypes.Tuple4;
-import com.blackforestbytes.simplecloudnotifier.lib.datatypes.Tuple5;
 import com.blackforestbytes.simplecloudnotifier.lib.string.Str;
 import com.blackforestbytes.simplecloudnotifier.model.CMessage;
 import com.blackforestbytes.simplecloudnotifier.model.CMessageList;
@@ -15,7 +13,6 @@ import com.blackforestbytes.simplecloudnotifier.model.QueryLog;
 import com.blackforestbytes.simplecloudnotifier.model.SCNSettings;
 import com.blackforestbytes.simplecloudnotifier.model.ServerCommunication;
 import com.blackforestbytes.simplecloudnotifier.model.SingleQuery;
-import com.google.android.gms.common.util.JsonUtils;
 import com.google.firebase.messaging.FirebaseMessagingService;
 import com.google.firebase.messaging.RemoteMessage;
 
@@ -52,7 +49,7 @@ public class FBMService extends FirebaseMessagingService
 
 
             SingleQuery q = new SingleQuery(LogLevel.INFO, Instant.now(), "FBM<recieve>", Str.Empty, new JSONObject(remoteMessage.getData()).toString(), 0, "SUCCESS");
-            QueryLog.instance().add(q);
+            QueryLog.inst().add(q);
 
             if (trimmed)
             {

android/app/src/main/java/com/blackforestbytes/simplecloudnotifier/service/IABService.java

@@ -74,6 +74,11 @@ public class IABService implements PurchasesUpdatedListener
         startServiceConnection(this::queryPurchases, false);
     }
 
+    public void reloadPrefs()
+    {
+        loadCache();
+    }
+
     private void loadCache()
     {
         _localCache.clear();

android/app/src/main/java/com/blackforestbytes/simplecloudnotifier/view/MainActivity.java

@@ -1,11 +1,13 @@
 package com.blackforestbytes.simplecloudnotifier.view;
 
+import android.content.Context;
 import android.content.Intent;
-import android.icu.text.SymbolTable;
+import android.content.SharedPreferences;
+import android.net.Uri;
 import android.os.Bundle;
+import android.util.Log;
 import android.view.View;
 import android.widget.RelativeLayout;
-import android.widget.TextView;
 import android.widget.Toast;
 
 import com.blackforestbytes.simplecloudnotifier.R;
@@ -23,6 +25,12 @@ import androidx.appcompat.widget.Toolbar;
 import androidx.viewpager.widget.PagerAdapter;
 import androidx.viewpager.widget.ViewPager;
 
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.ObjectInputStream;
+import java.util.Map;
+import java.util.Set;
+
 public class MainActivity extends AppCompatActivity
 {
     public TabAdapter adpTabs;
@@ -31,7 +39,7 @@ public class MainActivity extends AppCompatActivity
     @Override
     protected void onCreate(Bundle savedInstanceState)
     {
-        QueryLog.instance();
+        QueryLog.inst();
 
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_main);
@@ -103,4 +111,114 @@ public class MainActivity extends AppCompatActivity
 
         if (clickCount == 4) startActivity(new Intent(this, QueryLogActivity.class));
     }
+
+    @Override
+    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
+        super.onActivityResult(requestCode, resultCode, data);
+        if(requestCode == 1991 && resultCode == RESULT_OK)
+        {
+            Uri uri = data.getData(); //The uri with the location of the file
+
+            Context ctxt = this;
+
+            try
+            {
+                ObjectInputStream stream = new ObjectInputStream(getContentResolver().openInputStream(uri));
+
+                Map<String, ?> d1 = (Map<String, ?>)stream.readObject();
+                Map<String, ?> d2 = (Map<String, ?>)stream.readObject();
+                Map<String, ?> d3 = (Map<String, ?>)stream.readObject();
+                Map<String, ?> d4 = (Map<String, ?>)stream.readObject();
+
+                stream.close();
+
+                runOnUiThread(() ->
+                {
+
+                    SharedPreferences.Editor e1 = ctxt.getSharedPreferences("Config", Context.MODE_PRIVATE).edit();
+                    SharedPreferences.Editor e2 = ctxt.getSharedPreferences("IAB", Context.MODE_PRIVATE).edit();
+                    SharedPreferences.Editor e3 = ctxt.getSharedPreferences("CMessageList", Context.MODE_PRIVATE).edit();
+                    SharedPreferences.Editor e4 = ctxt.getSharedPreferences("QueryLog", Context.MODE_PRIVATE).edit();
+
+                    e1.clear();
+                    for (Map.Entry<String, ?> entry : d1.entrySet())
+                    {
+                        if (entry.getValue() instanceof String)  e1.putString(entry.getKey(),    (String)entry.getValue());
+                        if (entry.getValue() instanceof Boolean) e1.putBoolean(entry.getKey(),   (Boolean)entry.getValue());
+                        if (entry.getValue() instanceof Float)   e1.putFloat(entry.getKey(),     (Float)entry.getValue());
+                        if (entry.getValue() instanceof Integer) e1.putInt(entry.getKey(),       (Integer)entry.getValue());
+                        if (entry.getValue() instanceof Long)    e1.putLong(entry.getKey(),      (Long)entry.getValue());
+                        if (entry.getValue() instanceof Set<?>)  e1.putStringSet(entry.getKey(), (Set<String>)entry.getValue());
+                    }
+
+                    e2.clear();
+                    for (Map.Entry<String, ?> entry : d2.entrySet())
+                    {
+                        if (entry.getValue() instanceof String)  e2.putString(entry.getKey(),    (String)entry.getValue());
+                        if (entry.getValue() instanceof Boolean) e2.putBoolean(entry.getKey(),   (Boolean)entry.getValue());
+                        if (entry.getValue() instanceof Float)   e2.putFloat(entry.getKey(),     (Float)entry.getValue());
+                        if (entry.getValue() instanceof Integer) e2.putInt(entry.getKey(),       (Integer)entry.getValue());
+                        if (entry.getValue() instanceof Long)    e2.putLong(entry.getKey(),      (Long)entry.getValue());
+                        if (entry.getValue() instanceof Set<?>)  e2.putStringSet(entry.getKey(), (Set<String>)entry.getValue());
+                    }
+
+                    e2.clear();
+                    for (Map.Entry<String, ?> entry : d3.entrySet())
+                    {
+                        if (entry.getValue() instanceof String)  e3.putString(entry.getKey(),    (String)entry.getValue());
+                        if (entry.getValue() instanceof Boolean) e3.putBoolean(entry.getKey(),   (Boolean)entry.getValue());
+                        if (entry.getValue() instanceof Float)   e3.putFloat(entry.getKey(),     (Float)entry.getValue());
+                        if (entry.getValue() instanceof Integer) e3.putInt(entry.getKey(),       (Integer)entry.getValue());
+                        if (entry.getValue() instanceof Long)    e3.putLong(entry.getKey(),      (Long)entry.getValue());
+                        if (entry.getValue() instanceof Set<?>)  e3.putStringSet(entry.getKey(), (Set<String>)entry.getValue());
+                    }
+
+                    e4.clear();
+                    for (Map.Entry<String, ?> entry : d4.entrySet())
+                    {
+                        if (entry.getValue() instanceof String)  e4.putString(entry.getKey(),    (String)entry.getValue());
+                        if (entry.getValue() instanceof Boolean) e4.putBoolean(entry.getKey(),   (Boolean)entry.getValue());
+                        if (entry.getValue() instanceof Float)   e4.putFloat(entry.getKey(),     (Float)entry.getValue());
+                        if (entry.getValue() instanceof Integer) e4.putInt(entry.getKey(),       (Integer)entry.getValue());
+                        if (entry.getValue() instanceof Long)    e4.putLong(entry.getKey(),      (Long)entry.getValue());
+                        if (entry.getValue() instanceof Set<?>)  e4.putStringSet(entry.getKey(), (Set<String>)entry.getValue());
+                    }
+
+                    e1.apply();
+                    e2.apply();
+                    e3.apply();
+                    e4.apply();
+
+
+                    SCNSettings.inst().reloadPrefs();
+                    IABService.inst().reloadPrefs();
+                    CMessageList.inst().reloadPrefs();
+                    QueryLog.inst().reloadPrefs();
+
+
+                    Toolbar toolbar = findViewById(R.id.toolbar);
+                    setSupportActionBar(toolbar);
+
+                    ViewPager viewPager = findViewById(R.id.pager);
+                    PagerAdapter adapter = adpTabs = new TabAdapter(getSupportFragmentManager());
+                    viewPager.setAdapter(adapter);
+
+                    TabLayout tabLayout = findViewById(R.id.tab_layout);
+                    tabLayout.setupWithViewPager(viewPager);
+
+
+                    SCNSettings.inst().work(this);
+
+                    SCNApp.showToast("Backup imported", Toast.LENGTH_LONG);
+
+                    finish();
+                });
+            }
+            catch (Exception e)
+            {
+                Log.e("Import:Err", e.toString());
+                SCNApp.showToast("Import failed", Toast.LENGTH_LONG);
+            }
+        }
+    }
 }

android/app/src/main/java/com/blackforestbytes/simplecloudnotifier/view/SettingsFragment.java

@@ -2,6 +2,8 @@ package com.blackforestbytes.simplecloudnotifier.view;
 
 import android.annotation.SuppressLint;
 import android.content.Context;
+import android.content.Intent;
+import android.content.SharedPreferences;
 import android.graphics.Color;
 import android.media.AudioAttributes;
 import android.media.AudioManager;
@@ -11,6 +13,7 @@ import android.media.RingtoneManager;
 import android.net.Uri;
 import android.os.Build;
 import android.os.Bundle;
+import android.os.Environment;
 import android.text.Editable;
 import android.util.Log;
 import android.view.LayoutInflater;
@@ -28,6 +31,7 @@ import android.widget.TextView;
 import android.widget.Toast;
 
 import com.android.billingclient.api.Purchase;
+import com.blackforestbytes.simplecloudnotifier.BuildConfig;
 import com.blackforestbytes.simplecloudnotifier.R;
 import com.blackforestbytes.simplecloudnotifier.SCNApp;
 import com.blackforestbytes.simplecloudnotifier.lib.android.ThreadUtils;
@@ -39,9 +43,15 @@ import com.blackforestbytes.simplecloudnotifier.util.TextChangedListener;
 
 import org.jetbrains.annotations.NotNull;
 
+import java.io.File;
+import java.io.FileOutputStream;
 import java.io.IOException;
+import java.io.ObjectOutputStream;
+import java.util.Date;
+import java.util.Map;
 
 import androidx.annotation.NonNull;
+import androidx.core.content.FileProvider;
 import androidx.fragment.app.Fragment;
 import top.defaults.colorpicker.ColorPickerPopup;
 import xyz.aprildown.ultimatemusicpicker.MusicPickerListener;
@@ -93,6 +103,9 @@ public class SettingsFragment extends Fragment implements MusicPickerListener
     private SeekBar   prefMsgHighVolume;
     private ImageView prefMsgHighVolumeTest;
 
+    private Button    prefBtnImport;
+    private Button    prefBtnExport;
+
     private int musicPickerSwitch = -1;
 
     private MediaPlayer[] mPlayers = new MediaPlayer[3];
@@ -160,6 +173,9 @@ public class SettingsFragment extends Fragment implements MusicPickerListener
         prefMsgHighVolume             = v.findViewById(R.id.prefMsgHighVolume);
         prefMsgHighVolumeTest         = v.findViewById(R.id.btnHighVolumeTest);
 
+        prefBtnExport                 = v.findViewById(R.id.prefExport);
+        prefBtnImport                 = v.findViewById(R.id.prefImport);
+
         ArrayAdapter<Integer> plcsa = new ArrayAdapter<>(v.getContext(), android.R.layout.simple_spinner_item, SCNSettings.CHOOSABLE_CACHE_SIZES);
         plcsa.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
         prefLocalCacheSize.setAdapter(plcsa);
@@ -246,6 +262,9 @@ public class SettingsFragment extends Fragment implements MusicPickerListener
 
         prefUpgradeAccount.setOnClickListener(a -> onUpgradeAccount());
 
+        prefBtnExport.setOnClickListener(a -> onExport());
+        prefBtnImport.setOnClickListener(a -> onImport());
+
         prefMsgLowEnableSound.setOnCheckedChangeListener((a,b) -> { s.PriorityLow.EnableSound=b; saveAndUpdate(); });
         prefMsgLowRingtone_container.setOnClickListener(a -> chooseRingtoneLow());
         prefMsgLowRepeatSound.setOnCheckedChangeListener((a,b) -> { s.PriorityLow.RepeatSound=b; saveAndUpdate(); });
@@ -277,6 +296,55 @@ public class SettingsFragment extends Fragment implements MusicPickerListener
         prefMsgHighVolumeTest.setOnClickListener((v) -> { if (s.PriorityHigh.ForceVolume) playTestSound(2, prefMsgHighVolumeTest, s.PriorityHigh.SoundSource, s.PriorityHigh.ForceVolumeValue); });
     }
 
+    private void onExport()
+    {
+        Context ctxt = getContext();
+        if (ctxt == null) return;
+
+        try
+        {
+            File outputDir = ctxt.getCacheDir(); // context being the Activity pointer
+            File outputFile = File.createTempFile("scn_export_", ".dat", outputDir);
+
+            ObjectOutputStream output = new ObjectOutputStream(new FileOutputStream(outputFile));
+
+            Map<String, ?> d1 = ctxt.getSharedPreferences("Config", Context.MODE_PRIVATE).getAll();
+            Map<String, ?> d2 = ctxt.getSharedPreferences("IAB", Context.MODE_PRIVATE).getAll();
+            Map<String, ?> d3 = ctxt.getSharedPreferences("CMessageList", Context.MODE_PRIVATE).getAll();
+            Map<String, ?> d4 = ctxt.getSharedPreferences("QueryLog", Context.MODE_PRIVATE).getAll();
+
+            output.writeObject(d1);
+            output.writeObject(d2);
+            output.writeObject(d3);
+            output.writeObject(d4);
+
+            Intent intent = new Intent(Intent.ACTION_SEND);
+
+            Uri uri = FileProvider.getUriForFile(ctxt, "com.blackforestbytes.simplecloudnotifier.fileprovider", outputFile);
+            intent.putExtra(Intent.EXTRA_STREAM, uri);
+            intent.setType("*/*");
+            intent.setFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
+
+            startActivity(Intent.createChooser(intent, "Export"));
+        }
+        catch (IOException e)
+        {
+            Log.e("Export:Err", e.toString());
+            SCNApp.showToast("Export failed", Toast.LENGTH_LONG);
+        }
+    }
+
+    private void onImport()
+    {
+        SCNApp.getMainActivity().setContentView(R.layout.activity_main);
+
+        Intent intent = new Intent()
+                .setType("*/*")
+                .setAction(Intent.ACTION_GET_CONTENT);
+
+        ((MainActivity)getActivity()).startActivityForResult(Intent.createChooser(intent, "Select a file"), 1991);
+    }
+
     private void updateEnabled(boolean prev, boolean now)
     {
         if (!prev && now)

android/app/src/main/java/com/blackforestbytes/simplecloudnotifier/view/debug/QueryLogActivity.java

@@ -22,7 +22,7 @@ public class QueryLogActivity extends AppCompatActivity
         setContentView(R.layout.activity_querylog);
 
         ListView lvMain = findViewById(R.id.lvQueryList);
-        SingleQuery[] arr = QueryLog.instance().get().toArray(new SingleQuery[0]);
+        SingleQuery[] arr = QueryLog.inst().get().toArray(new SingleQuery[0]);
         QueryLogAdapter a = new QueryLogAdapter(this, arr);
         lvMain.setAdapter(a);
 

android/app/src/main/res/layout/fragment_settings.xml

@@ -805,6 +805,24 @@
 
         </androidx.cardview.widget.CardView>
 
+        <com.google.android.material.button.MaterialButton
+            android:id="@+id/prefExport"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_margin="12dp"
+            app:cornerRadius="0dp"
+            android:backgroundTint="#444444"
+            android:text="@string/export_settings" />
+
+        <com.google.android.material.button.MaterialButton
+            android:id="@+id/prefImport"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_margin="12dp"
+            app:cornerRadius="0dp"
+            android:backgroundTint="#666666"
+            android:text="@string/import_settings" />
+
     </LinearLayout>
 
 </ScrollView>

android/app/src/main/res/values/strings.xml

@@ -37,4 +37,6 @@
     <string name="play_test_sound">Play test sound</string>
     <string name="delete">DELETE</string>
     <string name="title_activity_query_log">QueryLogActivity</string>
+    <string name="import_settings">Import settings</string>
+    <string name="export_settings">Export settings</string>
 </resources>

android/app/src/main/res/xml/filepaths.xml

@@ -0,0 +1,7 @@
+<paths>
+    <files-path          path="/" name="files" />
+    <cache-path          path="/" name="cache" />
+    <external-path       path="/" name="external" />
+    <external-files-path path="/" name="external-files" />
+    <external-cache-path path="/" name="external-cache" />
+</paths>

web/api/model.php

@@ -166,6 +166,12 @@ function verifyOrderToken($tok)
 {
 	// https://developers.google.com/android-publisher/api-ref/purchases/products/get
 
+	// if this does no longer work, you probably have to go through the initial OAuth process again
+	// 1. go to Postman do the [ https://accounts.google.com/o/oauth2/auth ] request (in browser) to get a new "code"
+	// 2. go to Postman do the [ Get Tokens ] request to get a new "access_token" and "access_token"
+	// 3. update these tokens in the server config.php
+
+
 	try
 	{
 		$package  = getConfig()['verify_api']['package_name'];