Add “Copy value” overflow action to card view

app/src/main/java/protect/card_locker/LoyaltyCardViewActivity.java

@@ -69,6 +69,10 @@
 import protect.card_locker.databinding.LoyaltyCardViewLayoutBinding;
 import protect.card_locker.preferences.Settings;
 
+import android.content.ClipData;
+import android.content.ClipboardManager;
+import android.widget.Toast;
+
 public class LoyaltyCardViewActivity extends CatimaAppCompatActivity implements BarcodeImageWriterResultCallback {
     private LoyaltyCardViewLayoutBinding binding;
     private static final String TAG = "Catima";
@@ -704,7 +708,13 @@ protected void onResume() {
             AlertDialog.Builder builder = new MaterialAlertDialogBuilder(LoyaltyCardViewActivity.this);
             builder.setTitle(R.string.cardId);
             builder.setView(cardIdView);
-            builder.setPositiveButton(R.string.ok, (dialogInterface, i) -> dialogInterface.dismiss());
+            builder.setPositiveButton(R.string.copy_value, (dialog, which) -> {
+                ClipboardManager cm = (ClipboardManager) getSystemService(CLIPBOARD_SERVICE);
+                cm.setPrimaryClip(ClipData.newPlainText("QR value", loyaltyCard.cardId));
+                // Optional app toast; comment out if you rely on Android's privacy toast only
+                Toast.makeText(this, R.string.copied_to_clipboard, Toast.LENGTH_SHORT).show();
+            });
+            builder.setNegativeButton(android.R.string.ok, (dialog, which) -> dialog.dismiss());
             AlertDialog dialog = builder.create();
             dialog.show();
         });
@@ -914,6 +924,9 @@ public boolean onOptionsItemSelected(MenuItem item) {
             AlertDialog dialog = builder.create();
             dialog.show();
 
+            return true;
+        } else if (id == R.id.action_copy_value) {
+            copyValueToClipboard();          // <— helper you added earlier
             return true;
         }
 
@@ -1247,4 +1260,21 @@ private void setFullscreenModeSdkLessThan30() {
             );
         }
     }
+
+    private void copyValueToClipboard() {
+        // Take the value that’s already displayed to the user
+        String value = loyaltyCard.cardId;
+
+        if (value == null || value.isEmpty()) {
+            Toast.makeText(this, R.string.nothing_to_copy, Toast.LENGTH_SHORT).show();
+            return;
+        }
+
+        ClipboardManager cm = (ClipboardManager) getSystemService(CLIPBOARD_SERVICE);
+        ClipData clip = ClipData.newPlainText("Card value", value);
+        cm.setPrimaryClip(clip);
+
+        Toast.makeText(this, R.string.copied_to_clipboard, Toast.LENGTH_SHORT).show();
+    }
+
 }

app/src/main/res/drawable/baseline_content_copy_24.xml

@@ -0,0 +1,8 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp" android:height="24dp"
+    android:viewportWidth="24" android:viewportHeight="24">
+    <path android:fillColor="?attr/colorOnSurface"
+        android:pathData="M16,1H4c-1.1,0 -2,0.9 -2,2v14h2V3h12V1zM19,5H8
+                            c-1.1,0 -2,0.9 -2,2v14c0,1.1 0.9,2 2,2h11c1.1,0 2,-0.9 2,-2V7
+                            c0,-1.1 -0.9,-2 -2,-2zm0,16H8V7h11v14z"/>
+</vector>

app/src/main/res/menu/card_view_menu.xml

@@ -27,6 +27,11 @@
                 android:title="@string/duplicateCard"
                 app:showAsAction="never" />
 
+            <item
+                android:id="@+id/action_copy_value"
+                android:title="@string/copy_value"
+                app:showAsAction="ifRoom" />
+
             <item
                 android:id="@+id/action_archive"
                 android:title="@string/archive"

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

@@ -358,4 +358,7 @@
     <string name="acra_crash_email_subject"><xliff:g id="app_name">%s</xliff:g> crash report</string>
     <string name="pref_enable_acra">Ask to send crash reports</string>
     <string name="pref_enable_acra_summary">When enabled, you will be asked to report a crash when it happens. Crash reports are never sent automatically.</string>
+    <string name="copy_value">Copy value</string>
+    <string name="copied_to_clipboard">Copied to clipboard</string>
+    <string name="nothing_to_copy">No value found</string>
 </resources>