Renamed setting

app/src/main/java/eu/faircode/email/ActivityBase.java

@@ -73,8 +73,9 @@ abstract class ActivityBase extends AppCompatActivity implements SharedPreferenc
         this.contacts = hasPermission(Manifest.permission.READ_CONTACTS);
 
         SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this);
-        boolean no_history = prefs.getBoolean("no_history", false);
+
-        if (no_history)
+        boolean secure = prefs.getBoolean("secure", false);
+        if (secure)
             getWindow().addFlags(WindowManager.LayoutParams.FLAG_SECURE);
 
         if (!this.getClass().equals(ActivityMain.class)) {

app/src/main/java/eu/faircode/email/ApplicationEx.java

@@ -173,6 +173,12 @@ public class ApplicationEx extends Application {
                 editor.putInt("default_snooze", hours);
                 editor.remove("notify_snooze_duration");
             }
+
+        } else if (version < 819) {
+            if (prefs.contains("no_history")) {
+                editor.putBoolean("secure", prefs.getBoolean("no_history", false));
+                editor.remove("no_history");
+            }
         }
 
         if (version < BuildConfig.VERSION_CODE)

app/src/main/java/eu/faircode/email/FragmentOptionsPrivacy.java

@@ -63,7 +63,7 @@ public class FragmentOptionsPrivacy extends FragmentBase implements SharedPrefer
     private Spinner spOpenPgp;
     private SwitchCompat swEncrypt;
     private SwitchCompat swAutoDecrypt;
-    private SwitchCompat swNoHistory;
+    private SwitchCompat swSecure;
     private Button btnBiometrics;
     private Spinner spBiometricsTimeout;
     private Button btnPin;
@@ -73,7 +73,7 @@ public class FragmentOptionsPrivacy extends FragmentBase implements SharedPrefer
     private final static String[] RESET_OPTIONS = new String[]{
             "disable_tracking", "display_hidden",
             "openpgp_provider", "encrypt_default", "auto_decrypt",
-            "no_history",
+            "secure",
             "biometrics", "pin", "biometrics_timeout"
     };
 
@@ -92,7 +92,7 @@ public class FragmentOptionsPrivacy extends FragmentBase implements SharedPrefer
         spOpenPgp = view.findViewById(R.id.spOpenPgp);
         swEncrypt = view.findViewById(R.id.swEncrypt);
         swAutoDecrypt = view.findViewById(R.id.swAutoDecrypt);
-        swNoHistory = view.findViewById(R.id.swNoHistory);
+        swSecure = view.findViewById(R.id.swSecure);
         btnBiometrics = view.findViewById(R.id.btnBiometrics);
         spBiometricsTimeout = view.findViewById(R.id.spBiometricsTimeout);
         btnPin = view.findViewById(R.id.btnPin);
@@ -154,10 +154,10 @@ public class FragmentOptionsPrivacy extends FragmentBase implements SharedPrefer
             }
         });
 
-        swNoHistory.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
+        swSecure.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
             @Override
             public void onCheckedChanged(CompoundButton compoundButton, boolean checked) {
-                prefs.edit().putBoolean("no_history", checked).commit(); // apply won't work here
+                prefs.edit().putBoolean("secure", checked).commit(); // apply won't work here
                 restart();
             }
         });
@@ -267,7 +267,7 @@ public class FragmentOptionsPrivacy extends FragmentBase implements SharedPrefer
 
         swEncrypt.setChecked(prefs.getBoolean("encrypt_default", false));
         swAutoDecrypt.setChecked(prefs.getBoolean("auto_decrypt", false));
-        swNoHistory.setChecked(prefs.getBoolean("no_history", false));
+        swSecure.setChecked(prefs.getBoolean("secure", false));
 
         boolean biometrics = prefs.getBoolean("biometrics", false);
         btnBiometrics.setText(biometrics

app/src/main/res/layout/fragment_options_privacy.xml

@@ -103,18 +103,18 @@
             app:switchPadding="12dp" />
 
         <androidx.appcompat.widget.SwitchCompat
-            android:id="@+id/swNoHistory"
+            android:id="@+id/swSecure"
             android:layout_width="0dp"
             android:layout_height="wrap_content"
             android:layout_marginTop="12dp"
-            android:text="@string/title_advanced_recents"
+            android:text="@string/title_advanced_secure"
             app:layout_constraintEnd_toEndOf="parent"
             app:layout_constraintStart_toStartOf="parent"
             app:layout_constraintTop_toBottomOf="@id/swAutoDecrypt"
             app:switchPadding="12dp" />
 
         <TextView
-            android:id="@+id/tvNoHistoryHint"
+            android:id="@+id/tvSecureHint"
             android:layout_width="0dp"
             android:layout_height="wrap_content"
             android:layout_marginEnd="48dp"
@@ -123,7 +123,7 @@
             android:textStyle="italic"
             app:layout_constraintEnd_toEndOf="parent"
             app:layout_constraintStart_toStartOf="parent"
-            app:layout_constraintTop_toBottomOf="@id/swNoHistory" />
+            app:layout_constraintTop_toBottomOf="@id/swSecure" />
 
         <TextView
             android:id="@+id/tvBiometrics"
@@ -136,7 +136,7 @@
             android:textColor="?android:attr/textColorPrimary"
             app:layout_constraintEnd_toEndOf="parent"
             app:layout_constraintStart_toStartOf="parent"
-            app:layout_constraintTop_toBottomOf="@id/tvNoHistoryHint" />
+            app:layout_constraintTop_toBottomOf="@id/tvSecureHint" />
 
         <Button
             android:id="@+id/btnBiometrics"

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

@@ -329,7 +329,7 @@
     <string name="title_advanced_display_hidden">Display hidden message texts</string>
     <string name="title_advanced_openpgp">OpenPGP provider</string>
     <string name="title_advanced_auto_decrypt">Automatically decrypt messages</string>
-    <string name="title_advanced_recents">Hide FairEmail from screen with recent apps</string>
+    <string name="title_advanced_secure">Hide from recent apps screen and prevent taking screenshots</string>
     <string name="title_advanced_biometrics_timeout">Biometric authentication timeout</string>
     <string name="title_advanced_pin">PIN</string>