Privacy Policy for Wreda Text Helper

 

Privacy Policy

Effective Date: 16 February 2026

Thank you for using Wreda Text Helper.

1. Overview

Wreda Text Helper is designed to assist users with text accessibility features. We respect your privacy and are committed to protecting it.

2. No Data Collection

Wreda Text Helper:

Does NOT collect any personal information

Does NOT collect usage data

Does NOT track users

Does NOT store any personal data

We do not collect names, emails, phone numbers, device identifiers, location data, or any other personal information.

3. No Internet Usage

This application:

Does NOT require an internet connection

Does NOT transmit any data to external servers

Works fully offline

All functionality runs locally on your device.

4. No Advertising

Wreda Text Helper:

Does NOT contain advertisements

Does NOT use AdMob or any third-party advertising services

5. No Data Sharing

Since we do not collect any data, we do not share, sell, rent, or distribute any user information to third parties.

6. Accessibility Service Usage

Wreda Text Helper uses Android Accessibility Service solely to provide its core functionality.

The service is used only to assist users with text-related features and does not collect, store, or transmit any user data.

7. Children’s Privacy

Wreda Text Helper does not knowingly collect any personal information from children or adults. The app is safe for general use.

8. Changes to This Privacy Policy

If this Privacy Policy is updated, changes will be reflected in the updated version of the app listing.

9. Contact

If you have any questions about this Privacy Policy, you may contact:

Developer: dedeetok

Email: dedetoke@gmail.com

 

 

Android java: local webview from local html e.g help page

Create directory and html files

Switch to Project View (not Android view)

1. Go to: [your_project]
2. app/src/main/
3. Right click on main
4. → New
5. → Directory
6. → select or type "assets"
7. right click "assets" 
8. → New
9. → Directory
10. → type "webhelp"
11. right click "webhelp" 
12. → New
13. → File
14. → type "htmlhelp.html"
15. Repeat step 11 for your language e.g. id for Indonesia e.g. "htmlhelp_id.html" 

You can copy paste html code into htmlhelp.html" and "htmlhelp_id.html"

here is layout to show the webview

    ...
    <WebView
        android:id="@+id/my_web_help"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        />
    ... 

here is code to show the webview

...
    @Override
    public void onViewCreated(@NonNull View view, @Nullable Bundle savedInstanceState) {
...
        WebView webView = view.findViewById(R.id.my_web_help);

        // Safe defaults
        webView.getSettings().setJavaScriptEnabled(false);
        webView.getSettings().setAllowFileAccess(true);
        webView.getSettings().setDomStorageEnabled(false);

        loadHelpPage(webView);
...
    }

    /*
     * file html helper
     */
    private void loadHelpPage(WebView webView) {

        String lang = Locale.getDefault().getLanguage();
        String fileName;

        if ("id".equals(lang)) {
            fileName = "htmlhelp_id.html";
        } else {
            fileName = "htmlhelp.html";
        }

        webView.loadUrl("file:///android_asset/webhelp/" + fileName);
    }
... 

Optional configuration webview when your application got trouble when submit to application store e.g google play store

WebSettings settings = webView.getSettings();

settings.setJavaScriptEnabled(false);
settings.setDomStorageEnabled(false);
settings.setAllowFileAccess(true);          // needed for assets
settings.setAllowContentAccess(false);
settings.setAllowFileAccessFromFileURLs(false);
settings.setAllowUniversalAccessFromFileURLs(false);
settings.setSupportZoom(false);
settings.setBuiltInZoomControls(false);

  

java: comparison between database api in java android and jdbc in java standard edition

Here is comparison between database api in java android and jdbc in java standard edition  

Operation	Java Android	Java SE (JDBC)
INSERT	Returns new row ID (long)	Returns affected rows (int)
UPDATE	Returns affected rows (int)	Same
DELETE	Returns affected rows (int)	Same

In java SE (JDBC) id can be retrive using jse ps.getGeneratedKeys() return long where ps is PreparedStatement.

 

Android java: notification pattern code

add permission in project 

AndroidManifest.xml

<manifest ...>
    <uses-permission android:name="android.permission.POST_NOTIFICATIONS"/>

MainActivity.java 

   @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        EdgeToEdge.enable(this);
        setContentView(R.layout.activity_main);
        ViewCompat.setOnApplyWindowInsetsListener(findViewById(R.id.main), (v, insets) -> {
            Insets systemBars = insets.getInsets(WindowInsetsCompat.Type.systemBars());
            v.setPadding(systemBars.left, systemBars.top, systemBars.right, systemBars.bottom);
            return insets;
        });

        checkPermissions();
    ....
    }



    /*
     * check permission to read contact and write shared folder Download
     */
    private void checkPermissions() {
        List<String> permissions = new ArrayList<>();

        // 1. Android 13+ Notification Permission
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU) {
            permissions.add(Manifest.permission.POST_NOTIFICATIONS);
        }

        // API require string convert List<String> to String[];
        requestPermissionLauncher.launch(permissions.toArray(new String[0]));
    }

    /*
     * callback permission request
     */
    private final ActivityResultLauncher<String[]> requestPermissionLauncher =
            registerForActivityResult(new ActivityResultContracts.RequestMultiplePermissions(), result -> {
                // Handle Notification permission (Android 13+)
                boolean notificationsGranted = true;
                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU) {
                    notificationsGranted = result.getOrDefault(Manifest.permission.POST_NOTIFICATIONS, false);
                }

            }); 

create MyNotificationService.java class

public class MyNotificationService {

    public static final String CHANNEL_ID = "id_string_channel"; // todo
    public static final int NOTIF_ID = 123456;  // todo

    /*
     * to send notification
     */
    public static void sendNotification(Context context, String title, String message) {
        NotificationManager notificationManager =
                (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);

        NotificationCompat.Builder myNotifBuilder = getNotificationBuilder(context);
        myNotifBuilder
                .setContentTitle(title)
                .setContentText(message);

        notificationManager.notify(NOTIF_ID, myNotifBuilder.build());
    }

    /*
     * get notification for foreground
     */
    public static Notification getForegroundNotification(Context context) {
        Notification myNotif = getNotificationBuilder(context).build();
        return myNotif;
    }
    
    /*
     * Helper that returns the BUILDER so you can customize it before building
     */
    private static NotificationCompat.Builder getNotificationBuilder(Context context) {
        NotificationManager notificationManager =
                (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);

        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
            if (notificationManager.getNotificationChannel(CHANNEL_ID) == null) {
                NotificationChannel notifChannel = new NotificationChannel(
                        CHANNEL_ID,
                        "Background Sync Service",
                        NotificationManager.IMPORTANCE_LOW
                );
                notificationManager.createNotificationChannel(notifChannel);
            }
        }

        return new NotificationCompat.Builder(context, CHANNEL_ID)
                .setSmallIcon(android.R.drawable.stat_notify_sync)
                .setPriority(NotificationCompat.PRIORITY_LOW)
                .setCategory(Notification.CATEGORY_SERVICE);
        //.setOngoing(true); // can not swap away
    }
} 

 

 

Android java: fragment pattern code

Fragment

use just portrait for phone and w600 for tablet (bigger screen)   

for portrait (phone) 

<?xml version="1.0" encoding="utf-8"?>
<androidx.appcompat.widget.LinearLayoutCompat
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/main"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity"
    android:orientation="vertical"
    >
    
    <!-- Top TextView -->
    <androidx.appcompat.widget.LinearLayoutCompat
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal"
        >
        <androidx.appcompat.widget.AppCompatTextView
            android:id="@+id/top_text"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:text="@string/app_name"
            android:textSize="18sp"
            android:textStyle="bold"
            android:padding="12dp"
            android:gravity="start|center_vertical"
            android:background="#DDDDDD"
            android:layout_weight="1"
            />

        <androidx.appcompat.widget.AppCompatImageButton
            android:id="@+id/button_help"
            android:layout_width="64dp"
            android:layout_height="64dp"
            android:background="?android:attr/selectableItemBackground"
            android:src="@android:drawable/ic_menu_help" />
    </androidx.appcompat.widget.LinearLayoutCompat>
    
    <androidx.fragment.app.FragmentContainerView
        android:id="@+id/my_fragment_container_main"
        android:name="[Your java main fragment with full package name]"
        android:layout_width="match_parent"
        android:layout_height="0dp"
        android:layout_weight="1"
        />

</androidx.appcompat.widget.LinearLayoutCompat>

for w600 tablet

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/main"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    tools:context=".MainActivity">

    <!-- Top TextView -->
    <TextView
        android:id="@+id/top_text"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="Your Title Here"
        android:textSize="18sp"
        android:textStyle="bold"
        android:padding="12dp"
        android:gravity="center"
        android:background="#DDDDDD" />

    <!-- Horizontal Content -->
    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="0dp"
        android:layout_weight="1"
        android:orientation="horizontal"
        android:weightSum="3">

    <androidx.fragment.app.FragmentContainerView
        android:id="@+id/my_fragment_container_left"
        android:name="[Your java left fragment with full package name]"
        android:layout_width="0dp"
        android:layout_height="match_parent"
        android:layout_weight="1" />

    <View
        android:id="@+id/divider_line"
        android:layout_width="1dp"
        android:layout_height="match_parent"
        android:background="#000000" />

    <androidx.fragment.app.FragmentContainerView
        android:id="@+id/my_fragment_container_main"
        android:name="[Your java main fragment with full package name]"
        android:layout_width="0dp"
        android:layout_height="match_parent"
        android:layout_weight="2" />

    </LinearLayout>

</LinearLayout> 

Guideline for layout LinearLayout

• orientation android:orientation="vertical" 
  android:layout_width="match_parent" 
  android:layout_height="0dp" 
  android:layout_weight="1"
• orientation android:orientation="horizontal"
  android:weightSum="3" 
  android:layout_width="0dp" 
  android:layout_height="match_parent" android:layout_weight="1"  

in main activity on onCreate(Bundle savedInstanceState)

    public boolean isDualPane = false; // default is portrait

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        EdgeToEdge.enable(this);
        setContentView(R.layout.activity_main);
        ViewCompat.setOnApplyWindowInsetsListener(findViewById(R.id.main), (v, insets) -> {
            Insets systemBars = insets.getInsets(WindowInsetsCompat.Type.systemBars());
            v.setPadding(systemBars.left, systemBars.top, systemBars.right, systemBars.bottom);
            return insets;
        });

        isDualPane = findViewById(R.id.my_fragment_container_left) != null;

        // R.id.main id for root portrait & w600

        AppCompatImageButton buttonHelp = findViewById(R.id.button_help);
        buttonHelp.setOnClickListener(buttonHelpListener);        

        // Load Fragments only if this is a fresh start (savedInstanceState == null)
        // This prevents overlapping fragments during screen rotation
        if (savedInstanceState == null) {

            // If system loaded the w600 layout, load both Fragment
            if (isDualPane) {
                replaceFragment(
                        R.id.my_fragment_container_left,
                        new FragmentLeft(),
                        null);
                replaceFragment(
                        R.id.my_fragment_container_main,
                        new FragmentMain(),
                        null);
            } else {
                // default load main container
                replaceFragment(
                        R.id.my_fragment_container_main,
                        new FragmentMain(),
                        null); // when navigating add "Fragment Main"
            }
        }

        View.OnClickListener buttonHelpListener = new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                Fragment currentFragment =
                        getSupportFragmentManager()
                                .findFragmentById(R.id.my_fragment_container_main);
                if (currentFragment instanceof FragmentMain) {
                    // NOTE: we still use R.id.my_fragment_container_main in portrait
                    replaceFragment(
                            R.id.my_fragment_container_main,
                            new FragmentLeft(),
                            "Main Menu");
                } else {
                    getSupportFragmentManager().popBackStack();
                }
            }
        };

        /*
         * fragment helper
         */
        private void replaceFragment(
                         int containerId,
                         Fragment fragment,
                         String addToBackStackString) {
            FragmentTransaction transaction =
                    getSupportFragmentManager().beginTransaction();
            transaction.replace(containerId, fragment);
            if (addToBackStackString!=null) {
                transaction.addToBackStack(addToBackStackString);
            }
            transaction.commit();
        }
        ....
To implement onbackpresseddispatcher pattern code, see this  https://dedetoknotes.blogspot.com/2026/01/android-java-onbackpresseddispatcher.html