From: Soren Stoutner <soren@stoutner.com>
Date: Fri, 27 Oct 2023 04:12:14 +0000 (-0700)
Subject: Add options to copy, share, and save View Headers.  https://redmine.stoutner.com... 
X-Git-Tag: v3.16~8
X-Git-Url: https://gitweb.stoutner.com/?a=commitdiff_plain;h=cbeede13395a246b8a32adebbee3872031259f82;p=PrivacyBrowserAndroid.git

Add options to copy, share, and save View Headers.  https://redmine.stoutner.com/issues/673
---

diff --git a/app/src/main/java/com/stoutner/privacybrowser/activities/LogcatActivity.kt b/app/src/main/java/com/stoutner/privacybrowser/activities/LogcatActivity.kt
index 52a4075f..36751104 100644
--- a/app/src/main/java/com/stoutner/privacybrowser/activities/LogcatActivity.kt
+++ b/app/src/main/java/com/stoutner/privacybrowser/activities/LogcatActivity.kt
@@ -204,8 +204,9 @@ class LogcatActivity : AppCompatActivity() {
                 // Place the clip data on the clipboard.
                 clipboardManager.setPrimaryClip(logcatClipData)
 
-                // Display a snackbar.
-                Snackbar.make(logcatTextView, R.string.logcat_copied, Snackbar.LENGTH_SHORT).show()
+                // Display a snackbar if the API <= 32 (Android 12L).  Beginning in Android 13 the OS displays a notification that covers up the snackbar.
+                if (Build.VERSION.SDK_INT <= 32)
+                    Snackbar.make(logcatTextView, R.string.logcat_copied, Snackbar.LENGTH_SHORT).show()
 
                 // Consume the event.
                 true
diff --git a/app/src/main/java/com/stoutner/privacybrowser/activities/ViewHeadersActivity.kt b/app/src/main/java/com/stoutner/privacybrowser/activities/ViewHeadersActivity.kt
index 145ced5d..ce86183b 100644
--- a/app/src/main/java/com/stoutner/privacybrowser/activities/ViewHeadersActivity.kt
+++ b/app/src/main/java/com/stoutner/privacybrowser/activities/ViewHeadersActivity.kt
@@ -19,7 +19,14 @@
 
 package com.stoutner.privacybrowser.activities
 
+import android.content.ClipData
+import android.content.ClipboardManager
+import android.content.Context
+import android.content.Intent
+import android.net.Uri
+import android.os.Build
 import android.os.Bundle
+import android.provider.OpenableColumns
 import android.text.SpannableStringBuilder
 import android.text.style.ForegroundColorSpan
 import android.util.TypedValue
@@ -35,11 +42,11 @@ import android.widget.EditText
 import android.widget.ProgressBar
 import android.widget.TextView
 
+import androidx.activity.result.contract.ActivityResultContracts
 import androidx.appcompat.app.ActionBar
 import androidx.appcompat.app.AppCompatActivity
 import androidx.appcompat.widget.Toolbar
 import androidx.core.app.NavUtils
-import androidx.fragment.app.DialogFragment
 import androidx.lifecycle.ViewModelProvider
 import androidx.preference.PreferenceManager
 import androidx.swiperefreshlayout.widget.SwipeRefreshLayout
@@ -58,6 +65,14 @@ import com.stoutner.privacybrowser.helpers.UrlHelper
 import com.stoutner.privacybrowser.viewmodelfactories.ViewHeadersFactory
 import com.stoutner.privacybrowser.viewmodels.HeadersViewModel
 
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.launch
+import kotlinx.coroutines.withContext
+
+import java.lang.Exception
+import java.nio.charset.StandardCharsets
+
 // Define the public constants.
 const val USER_AGENT = "user_agent"
 
@@ -82,7 +97,58 @@ class ViewHeadersActivity: AppCompatActivity(), UntrustedSslCertificateListener
     private lateinit var responseMessageTitleTextView: TextView
     private lateinit var responseMessageTextView: TextView
     private lateinit var responseHeadersTitleTextView: TextView
+    private lateinit var responseHeadersTextView: TextView
     private lateinit var responseBodyTitleTextView: TextView
+    private lateinit var responseBodyTextView: TextView
+
+    // Define the save text activity result launcher.  It must be defined before `onCreate()` is run or the app will crash.
+    private val saveTextActivityResultLauncher = registerForActivityResult(ActivityResultContracts.CreateDocument("text/plain")) { fileUri ->
+        // Only save the file if the URI is not null, which happens if the user exited the file picker by pressing back.
+        if (fileUri != null) {
+            // Initialize the file name string from the file URI last path segment.
+            var fileNameString = fileUri.lastPathSegment
+
+            // Query the exact file name if the API >= 26.
+            if (Build.VERSION.SDK_INT >= 26) {
+                // Get a cursor from the content resolver.
+                val contentResolverCursor = contentResolver.query(fileUri, null, null, null)!!
+
+                // Move to the first row.
+                contentResolverCursor.moveToFirst()
+
+                // Get the file name from the cursor.
+                fileNameString = contentResolverCursor.getString(contentResolverCursor.getColumnIndexOrThrow(OpenableColumns.DISPLAY_NAME))
+
+                // Close the cursor.
+                contentResolverCursor.close()
+            }
+
+            try {
+                // Get the about version string.
+                val headersString = getHeadersString()
+
+                // Open an output stream.
+                val outputStream = contentResolver.openOutputStream(fileUri)!!
+
+                // Save the headers using a coroutine with Dispatchers.IO.
+                CoroutineScope(Dispatchers.Main).launch {
+                    withContext(Dispatchers.IO) {
+                        // Write the headers string to the output stream.
+                        outputStream.write(headersString.toByteArray(StandardCharsets.UTF_8))
+
+                        // Close the output stream.
+                        outputStream.close()
+                    }
+                }
+
+                // Display a snackbar with the saved logcat information.
+                Snackbar.make(urlEditText, getString(R.string.saved, fileNameString), Snackbar.LENGTH_SHORT).show()
+            } catch (exception: Exception) {
+                // Display a snackbar with the error message.
+                Snackbar.make(urlEditText, getString(R.string.error_saving_file, fileNameString, exception.toString()), Snackbar.LENGTH_INDEFINITE).show()
+            }
+        }
+    }
 
     override fun onCreate(savedInstanceState: Bundle?) {
         // Get a handle for the shared preferences.
@@ -142,9 +208,9 @@ class ViewHeadersActivity: AppCompatActivity(), UntrustedSslCertificateListener
         responseMessageTitleTextView = findViewById(R.id.response_message_title_textview)
         responseMessageTextView = findViewById(R.id.response_message_textview)
         responseHeadersTitleTextView = findViewById(R.id.response_headers_title_textview)
-        val responseHeadersTextView = findViewById<TextView>(R.id.response_headers_textview)
+        responseHeadersTextView = findViewById(R.id.response_headers_textview)
         responseBodyTitleTextView = findViewById(R.id.response_body_title_textview)
-        val responseBodyTextView = findViewById<TextView>(R.id.response_body_textview)
+        responseBodyTextView = findViewById(R.id.response_body_textview)
 
         // Initialize the gray foreground color spans for highlighting the URLs.
         initialGrayColorSpan = ForegroundColorSpan(getColor(R.color.gray_500))
@@ -369,22 +435,138 @@ class ViewHeadersActivity: AppCompatActivity(), UntrustedSslCertificateListener
     }
 
     override fun onOptionsItemSelected(menuItem: MenuItem): Boolean {
-        // Instantiate the about dialog fragment.
-        val aboutDialogFragment: DialogFragment = AboutViewHeadersDialog()
+        // Run the appropriate commands.
+        when (menuItem.itemId) {
+            R.id.copy_headers -> {  // Copy the headers.
+                // Get the headers string.
+                val headersString = getHeadersString()
 
-        // Show the about alert dialog.
-        aboutDialogFragment.show(supportFragmentManager, getString(R.string.about))
+                // Get a handle for the clipboard manager.
+                val clipboardManager = (getSystemService(Context.CLIPBOARD_SERVICE) as ClipboardManager)
 
-        // Consume the event.
-        return true
+                // Place the headers string in a clip data.
+                val headersClipData = ClipData.newPlainText(getString(R.string.view_headers), headersString)
+
+                // Place the clip data on the clipboard.
+                clipboardManager.setPrimaryClip(headersClipData)
+
+                // Display a snackbar if the API <= 32 (Android 12L).  Beginning in Android 13 the OS displays a notification that covers up the snackbar.
+                if (Build.VERSION.SDK_INT <= 32)
+                    Snackbar.make(urlEditText, R.string.version_info_copied, Snackbar.LENGTH_SHORT).show()
+
+                // Consume the event.
+                return true
+            }
+
+            R.id.share_headers -> {  // Share the headers.
+                // Get the headers string.
+                val headersString = getHeadersString()
+
+                // Create a share intent.
+                val shareIntent = Intent(Intent.ACTION_SEND)
+
+                // Add the headers string to the intent.
+                shareIntent.putExtra(Intent.EXTRA_TEXT, headersString)
+
+                // Set the MIME type.
+                shareIntent.type = "text/plain"
+
+                // Set the intent to open in a new task.
+                shareIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK)
+
+                // Make it so.
+                startActivity(Intent.createChooser(shareIntent, getString(R.string.share)))
+
+                // Consume the event.
+                return true
+            }
+
+            R.id.save_headers -> {  // Save the headers as a text file.
+                // Get the current URL.
+                val currentUrlString = urlEditText.text.toString()
+
+                // Get a URI for the current URL.
+                val currentUri = Uri.parse(currentUrlString)
+
+                // Get the current domain name.
+                val currentDomainName = currentUri.host
+
+                // Open the file picker.
+                saveTextActivityResultLauncher.launch(getString(R.string.headers_txt, currentDomainName))
+
+                // Consume the event.
+                return true
+            }
+
+            R.id.about_view_headers -> {  // Display the about dialog.
+                // Instantiate the about dialog fragment.
+                val aboutDialogFragment = AboutViewHeadersDialog()
+
+                // Show the about alert dialog.
+                aboutDialogFragment.show(supportFragmentManager, getString(R.string.about))
+
+                // Consume the event.
+                return true
+            }
+
+            else -> {  // The home button was selected.
+                // Run the parents class on return.
+                return super.onOptionsItemSelected(menuItem)
+            }
+        }
     }
 
-    // This method must be named `goBack()` and must have a View argument to match the default back arrow in the app bar.
+    // This method must be named `goBack()` and must have a View argument to match the default back arrow in the app bar or a crash occurs.
     fun goBack(@Suppress("UNUSED_PARAMETER") view: View) {
         // Go home.
         NavUtils.navigateUpFromSameTask(this)
     }
 
+    private fun getHeadersString(): String {
+        // Initialize a headers string builder.
+        val headersStringBuilder = StringBuilder()
+
+        // Populate the SSL information if it is visible (an HTTPS URL is loaded).
+        if (sslInformationTitleTextView.visibility == View.VISIBLE) {
+            headersStringBuilder.append(sslInformationTitleTextView.text)
+            headersStringBuilder.append("\n")
+            headersStringBuilder.append(sslInformationTextView.text)
+            headersStringBuilder.append("\n\n")
+            headersStringBuilder.append(getString(R.string.available_ciphers))
+            headersStringBuilder.append("\n")
+            headersStringBuilder.append(availableCiphersString)
+            headersStringBuilder.append("\n\n")
+            headersStringBuilder.append(getString(R.string.ssl_certificate))
+            headersStringBuilder.append("\n")
+            headersStringBuilder.append(sslCertificateString)
+            headersStringBuilder.append("\n")  // Only a single new line is needed after the certificate as it already ends in one.
+        }
+
+        // Populate the request information if it is visible (an HTTP URL is loaded).
+        if (requestHeadersTitleTextView.visibility == View.VISIBLE) {
+            headersStringBuilder.append(requestHeadersTitleTextView.text)
+            headersStringBuilder.append("\n")
+            headersStringBuilder.append(requestHeadersTextView.text)
+            headersStringBuilder.append("\n\n")
+            headersStringBuilder.append(responseMessageTitleTextView.text)
+            headersStringBuilder.append("\n")
+            headersStringBuilder.append(responseMessageTextView.text)
+            headersStringBuilder.append("\n\n")
+        }
+
+        // Populate the response information, which is visible for both HTTP and content URLs.
+        headersStringBuilder.append(responseHeadersTitleTextView.text)
+        headersStringBuilder.append("\n")
+        headersStringBuilder.append(responseHeadersTextView.text)
+        headersStringBuilder.append("\n\n")
+        headersStringBuilder.append(responseBodyTitleTextView.text)
+        headersStringBuilder.append("\n")
+        headersStringBuilder.append(responseBodyTextView.text)
+
+        // Return the string.
+        return headersStringBuilder.toString()
+    }
+
     override fun loadAnyway() {
         // Load the URL anyway.
         headersViewModel.updateHeaders(urlEditText.text.toString(), true)
diff --git a/app/src/main/java/com/stoutner/privacybrowser/fragments/AboutVersionFragment.kt b/app/src/main/java/com/stoutner/privacybrowser/fragments/AboutVersionFragment.kt
index c2c90f36..03fa6f05 100644
--- a/app/src/main/java/com/stoutner/privacybrowser/fragments/AboutVersionFragment.kt
+++ b/app/src/main/java/com/stoutner/privacybrowser/fragments/AboutVersionFragment.kt
@@ -628,14 +628,15 @@ class AboutVersionFragment : Fragment() {
                 // Get a handle for the clipboard manager.
                 val clipboardManager = (requireActivity().getSystemService(Context.CLIPBOARD_SERVICE) as ClipboardManager)
 
-                // Save the about version string in a clip data.
+                // Place the about version string in a clip data.
                 val aboutVersionClipData = ClipData.newPlainText(getString(R.string.about), aboutVersionString)
 
                 // Place the clip data on the clipboard.
                 clipboardManager.setPrimaryClip(aboutVersionClipData)
 
-                // Display a snackbar.
-                Snackbar.make(aboutVersionLayout, R.string.version_info_copied, Snackbar.LENGTH_SHORT).show()
+                // Display a snackbar if the API <= 32 (Android 12L).  Beginning in Android 13 the OS displays a notification that covers up the snackbar.
+                if (Build.VERSION.SDK_INT <= 32)
+                    Snackbar.make(aboutVersionLayout, R.string.version_info_copied, Snackbar.LENGTH_SHORT).show()
 
                 // Consume the event.
                 return true
@@ -645,20 +646,20 @@ class AboutVersionFragment : Fragment() {
                 // Get the about version string.
                 val aboutString = getAboutVersionString()
 
-                // Create an email intent.
-                val emailIntent = Intent(Intent.ACTION_SEND)
+                // Create a share intent.
+                val shareIntent = Intent(Intent.ACTION_SEND)
 
                 // Add the about version string to the intent.
-                emailIntent.putExtra(Intent.EXTRA_TEXT, aboutString)
+                shareIntent.putExtra(Intent.EXTRA_TEXT, aboutString)
 
                 // Set the MIME type.
-                emailIntent.type = "text/plain"
+                shareIntent.type = "text/plain"
 
                 // Set the intent to open in a new task.
-                emailIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK)
+                shareIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK)
 
                 // Make it so.
-                startActivity(Intent.createChooser(emailIntent, getString(R.string.share)))
+                startActivity(Intent.createChooser(shareIntent, getString(R.string.share)))
 
                 // Consume the event.
                 return true
@@ -679,6 +680,7 @@ class AboutVersionFragment : Fragment() {
                 // Consume the event.
                 return true
             }
+
             else -> {  // The home button was selected.
                 // Run the parents class on return.
                 return super.onOptionsItemSelected(menuItem)
diff --git a/app/src/main/res/menu/view_headers_options_menu.xml b/app/src/main/res/menu/view_headers_options_menu.xml
index d7439959..5557ccf6 100644
--- a/app/src/main/res/menu/view_headers_options_menu.xml
+++ b/app/src/main/res/menu/view_headers_options_menu.xml
@@ -22,11 +22,31 @@
     xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto">
 
-    <!-- `android:iconTint` can be used once API >= 26 instead of including separate drawable files. -->
+    <item
+        android:id="@+id/copy_headers"
+        android:title="@string/copy_string"
+        android:orderInCategory="10"
+        android:icon="@drawable/copy"
+        app:showAsAction="never" />
+
+    <item
+        android:id="@+id/share_headers"
+        android:title="@string/share"
+        android:orderInCategory="20"
+        android:icon="@drawable/share"
+        app:showAsAction="never" />
+
+    <item
+        android:id="@+id/save_headers"
+        android:title="@string/save"
+        android:orderInCategory="30"
+        android:icon="@drawable/save"
+        app:showAsAction="never" />
+
     <item
         android:id="@+id/about_view_headers"
         android:title="@string/about"
-        android:orderInCategory="10"
+        android:orderInCategory="40"
         android:icon="@drawable/about"
-        app:showAsAction="ifRoom" />
+        app:showAsAction="never" />
 </menu>
diff --git a/app/src/main/res/values-de/strings.xml b/app/src/main/res/values-de/strings.xml
index 4cc9670c..5abeb8eb 100644
--- a/app/src/main/res/values-de/strings.xml
+++ b/app/src/main/res/values-de/strings.xml
@@ -219,7 +219,8 @@
     <string name="error_saving_file">Fehler beim Speichern der Datei %1$s:\u0020 %2$s</string>
     <string name="unknown_error">Unbekannter Fehler</string>
 
-    <!-- View Headers. Android removes double spaces, but extra spaces can be manually specified with the Unicode `\u0020` formatting.-->
+    <!-- View Headers. Android removes double spaces, but extra spaces can be manually specified with the Unicode `\u0020` formatting.
+        The `%1$s` code inserts variables into the displayed text and should be preserved in translation.  <https://developer.android.com/reference/kotlin/java/util/Formatter> -->
     <string name="colon">: \u0020</string>
     <string name="request_headers">Anfragekopfzeilen</string>
     <string name="response_message">Status-Code</string>
diff --git a/app/src/main/res/values-es/strings.xml b/app/src/main/res/values-es/strings.xml
index b69c1f5d..87feb911 100644
--- a/app/src/main/res/values-es/strings.xml
+++ b/app/src/main/res/values-es/strings.xml
@@ -215,7 +215,8 @@
     <string name="error_saving_file">Error al guardar %1$s:\u0020 %2$s</string>
     <string name="unknown_error">Error desconocido</string>
 
-    <!-- View Headers. Android removes double spaces, but extra spaces can be manually specified with the Unicode `\u0020` formatting.-->
+    <!-- View Headers. Android removes double spaces, but extra spaces can be manually specified with the Unicode `\u0020` formatting.
+        The `%1$s` code inserts variables into the displayed text and should be preserved in translation.  <https://developer.android.com/reference/kotlin/java/util/Formatter> -->
     <string name="colon">: \u0020</string>
     <string name="ssl_information">Información sobre SSL</string>
     <string name="applied_cipher">Cifrado aplicado</string>
diff --git a/app/src/main/res/values-fr/strings.xml b/app/src/main/res/values-fr/strings.xml
index 79584718..e6cf67fa 100644
--- a/app/src/main/res/values-fr/strings.xml
+++ b/app/src/main/res/values-fr/strings.xml
@@ -215,7 +215,8 @@
     <string name="error_saving_file">Erreur lors de l\'enregistrement de %1$s : %2$s</string>
     <string name="unknown_error">Erreur inconnue</string>
 
-    <!-- View Headers. Android removes initial and trailing spaces, but they can be manually specified with the Unicode `\u0020` formatting.-->
+    <!-- View Headers. Android removes initial and trailing spaces, but they can be manually specified with the Unicode `\u0020` formatting.
+        The `%1$s` code inserts variables into the displayed text and should be preserved in translation.  <https://developer.android.com/reference/kotlin/java/util/Formatter> -->
     <string name="colon">\u0020:\u0020</string>
     <string name="request_headers">En-tête de la requête</string>
     <string name="response_message">Message de la réponse</string>
diff --git a/app/src/main/res/values-it/strings.xml b/app/src/main/res/values-it/strings.xml
index 1b5de9db..3abad243 100644
--- a/app/src/main/res/values-it/strings.xml
+++ b/app/src/main/res/values-it/strings.xml
@@ -213,7 +213,8 @@
     <string name="error_saving_file">Error di salvataggio di %1$s:\u0020 %2$s</string>
     <string name="unknown_error">Errore sconosciuto</string>
 
-    <!-- View Headers. Android removes double spaces, but extra spaces can be manually specified with the Unicode `\u0020` formatting.-->
+    <!-- View Headers. Android removes double spaces, but extra spaces can be manually specified with the Unicode `\u0020` formatting.
+        The `%1$s` code inserts variables into the displayed text and should be preserved in translation.  <https://developer.android.com/reference/kotlin/java/util/Formatter> -->
     <string name="colon">: \u0020</string>
     <string name="ssl_information">Informazioni SSL</string>
     <string name="applied_cipher">Cifratura Applicata</string>
diff --git a/app/src/main/res/values-pt-rBR/strings.xml b/app/src/main/res/values-pt-rBR/strings.xml
index 6c802033..01deebdd 100644
--- a/app/src/main/res/values-pt-rBR/strings.xml
+++ b/app/src/main/res/values-pt-rBR/strings.xml
@@ -208,7 +208,8 @@
     <string name="error_saving_file">Erro ao salvar %1$s:\u0020 %2$s</string>
     <string name="unknown_error">Erro desconhecido</string>
 
-    <!-- View Headers. Android removes double spaces, but extra spaces can be manually specified with the Unicode `\u0020` formatting.-->
+    <!-- View Headers. Android removes double spaces, but extra spaces can be manually specified with the Unicode `\u0020` formatting.
+        The `%1$s` code inserts variables into the displayed text and should be preserved in translation.  <https://developer.android.com/reference/kotlin/java/util/Formatter> -->
     <string name="colon">: \u0020</string>
     <string name="request_headers">Solicitar cabeçalhos</string>
     <string name="response_message">Mensagem de Resposta</string>
diff --git a/app/src/main/res/values-ru/strings.xml b/app/src/main/res/values-ru/strings.xml
index 0a8ea2b4..293953e7 100644
--- a/app/src/main/res/values-ru/strings.xml
+++ b/app/src/main/res/values-ru/strings.xml
@@ -212,7 +212,8 @@
     <string name="error_saving_file">Ошибка сохранения %1$s:\u0020 %2$s</string>
     <string name="unknown_error">Неизвестная ошибка</string>
 
-    <!-- View Headers. Android removes double spaces, but extra spaces can be manually specified with the Unicode `\u0020` formatting.-->
+    <!-- View Headers. Android removes double spaces, but extra spaces can be manually specified with the Unicode `\u0020` formatting.
+        The `%1$s` code inserts variables into the displayed text and should be preserved in translation.  <https://developer.android.com/reference/kotlin/java/util/Formatter> -->
     <string name="colon">: \u0020</string>
     <string name="request_headers">Заголовки запроса</string>
     <string name="response_message">Ответное сообщение</string>
diff --git a/app/src/main/res/values-tr/strings.xml b/app/src/main/res/values-tr/strings.xml
index 63cf8548..1b180023 100644
--- a/app/src/main/res/values-tr/strings.xml
+++ b/app/src/main/res/values-tr/strings.xml
@@ -179,7 +179,8 @@
     <string name="file_name">Dosya adı</string>
     <string name="unknown_size">Bilinmeyen boyut</string>
 
-    <!-- View Headers. Android removes double spaces, but extra spaces can be manually specified with the Unicode `\u0020` formatting.-->
+    <!-- View Headers. Android removes double spaces, but extra spaces can be manually specified with the Unicode `\u0020` formatting.
+        The `%1$s` code inserts variables into the displayed text and should be preserved in translation.  <https://developer.android.com/reference/kotlin/java/util/Formatter> -->
     <string name="colon">: \u0020</string>
     <string name="request_headers">İstek Başlıkları</string>
     <string name="response_message">Yanıt Mesajı</string>
diff --git a/app/src/main/res/values-zh-rCN/strings.xml b/app/src/main/res/values-zh-rCN/strings.xml
index 37f2e2bf..82c58ee3 100644
--- a/app/src/main/res/values-zh-rCN/strings.xml
+++ b/app/src/main/res/values-zh-rCN/strings.xml
@@ -213,7 +213,8 @@
     <string name="error_saving_file">保存失败 %1$s:\u0020 %2$s</string>
     <string name="unknown_error">未知错误</string>
 
-    <!-- View Headers. Android removes double spaces, but extra spaces can be manually specified with the Unicode `\u0020` formatting.-->
+    <!-- View Headers. Android removes double spaces, but extra spaces can be manually specified with the Unicode `\u0020` formatting.
+        The `%1$s` code inserts variables into the displayed text and should be preserved in translation.  <https://developer.android.com/reference/kotlin/java/util/Formatter> -->
     <string name="colon">: \u0020</string>
     <string name="request_headers">请求头</string>
     <string name="response_message">响应</string>
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 96aa8d54..a2310b82 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -224,7 +224,8 @@
     <string name="error_saving_file">Error saving %1$s:\u0020 %2$s</string>
     <string name="unknown_error">Unknown error</string>
 
-    <!-- View Headers. Android removes double spaces, but extra spaces can be manually specified with the Unicode `\u0020` formatting.-->
+    <!-- View Headers. Android removes double spaces, but extra spaces can be manually specified with the Unicode `\u0020` formatting.
+        The `%1$s` code inserts variables into the displayed text and should be preserved in translation.  <https://developer.android.com/reference/kotlin/java/util/Formatter> -->
     <string name="colon">: \u0020</string>
     <string name="ssl_information">SSL Information</string>
     <string name="applied_cipher">Applied Cipher</string>
@@ -246,6 +247,8 @@
     <string name="about_view_headers_message">Because Android’s WebView does not expose the source information,
         a separate request was made using system tools to gather the information displayed in this activity.
         There may be some differences between this data and that used by the WebView in the main activity. This limitation will be removed in the 4.x series with the release of Privacy WebView.</string>
+    <string name="headers_copied">Headers copied.</string>
+    <string name="headers_txt">%1$s headers.txt</string>
 
     <!-- Create Home Screen Shortcut Alert Dialog. -->
     <string name="create_shortcut">Create Shortcut</string>