Added settings to reload on every connectivity change

app/src/main/java/eu/faircode/netguard/ActivitySettings.java

@@ -199,6 +199,13 @@ public class ActivitySettings extends AppCompatActivity implements SharedPrefere
             }
         });
 
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+            TwoStatePreference pref_reload_onconnectivity =
+                    (TwoStatePreference) screen.findPreference("reload_onconnectivity");
+            pref_reload_onconnectivity.setChecked(true);
+            pref_reload_onconnectivity.setEnabled(false);
+        }
+
         // Handle port forwarding
         Preference pref_forwarding = screen.findPreference("forwarding");
         pref_forwarding.setOnPreferenceClickListener(new Preference.OnPreferenceClickListener() {

app/src/main/java/eu/faircode/netguard/ServiceSinkhole.java

@@ -2257,7 +2257,9 @@ public class ServiceSinkhole extends VpnService implements SharedPreferences.OnS
             @Override
             public void onLinkPropertiesChanged(Network network, LinkProperties linkProperties) {
                 // Make sure the right DNS servers are being used
-                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O)
+                SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(ServiceSinkhole.this);
+                if (prefs.getBoolean("reload_onconnectivity", false) ||
+                        Build.VERSION.SDK_INT >= Build.VERSION_CODES.O)
                     reload("link properties changed", ServiceSinkhole.this, false);
             }
 

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

@@ -90,6 +90,7 @@ however it is impossible to guarantee NetGuard will work correctly on every devi
     <string name="setting_call">Disable on call</string>
     <string name="setting_lockdown_wifi">Lockdown Wi-Fi</string>
     <string name="setting_lockdown_other">Lockdown mobile</string>
+    <string name="setting_reload_onconnectivity">Reload on every connectivity change</string>
 
     <string name="setting_advanced_options">Advanced options</string>
     <string name="setting_system">Manage system apps</string>

app/src/main/res/xml-v14/preferences.xml

@@ -143,6 +143,10 @@
                 android:defaultValue="true"
                 android:key="lockdown_other"
                 android:title="@string/setting_lockdown_other" />
+            <CheckBoxPreference
+                android:defaultValue="false"
+                android:key="reload_onconnectivity"
+                android:title="@string/setting_reload_onconnectivity" />
         </PreferenceCategory>
     </PreferenceScreen>
 

app/src/main/res/xml-v21/preferences.xml

@@ -143,6 +143,10 @@
                 android:defaultValue="true"
                 android:key="lockdown_other"
                 android:title="@string/setting_lockdown_other" />
+            <eu.faircode.netguard.SwitchPreference
+                android:defaultValue="false"
+                android:key="reload_onconnectivity"
+                android:title="@string/setting_reload_onconnectivity" />
         </PreferenceCategory>
     </PreferenceScreen>