Can change account image visibility level

lib/helpers/settings_helper.dart

@@ -35,4 +35,19 @@ class SettingsHelper {
               .addFile("picture", newImage)
               .execWithFiles())
           .isOK;
+
+  /// Change account image visibility level
+  static Future<bool> setAccountImageVisibilityLevel(
+          AccountImageVisibilityLevels level) async =>
+      (await APIRequest(
+                  uri: "settings/set_account_image_visibility", needLogin: true)
+              .addString(
+                  "visibility",
+
+                  // Find appropriate visibility level
+                  _APIAccountImageVisibilityAPILevels.entries
+                      .firstWhere((f) => f.value == level)
+                      .key)
+              .exec())
+          .isOK;
 }

lib/ui/routes/account_settings/account_image_settings.dart

@@ -73,11 +73,26 @@ class __AccountImageSettingsBodyState extends State<_AccountImageSettingsBody> {
           width: 40,
         ),
       ),
+
+      // Upload new account image
       SettingsTile(
         title: tr("Upload new account image"),
         onTap: () => _uploadAccountImage(),
       ),
-      SettingsTile(title: tr("Change account image visibility")),
+
+      // Change account image visibility
+      SettingsTile(
+          title: tr("Change account image visibility"),
+          onTap: () => _chooseAccountImageVisibility(),
+          subtitle: tr("Current level: %level%", args: {
+            "level":
+                _settings.visibility == AccountImageVisibilityLevels.EVERYONE
+                    ? tr("Everyone")
+                    : _settings.visibility ==
+                            AccountImageVisibilityLevels.COMUNIC_USERS
+                        ? tr("Comunic users")
+                        : tr("My friends only"),
+          })),
       SettingsTile(title: tr("Delete account image"))
     ];
   }
@@ -95,4 +110,42 @@ class __AccountImageSettingsBodyState extends State<_AccountImageSettingsBody> {
 
     _key.currentState.refresh();
   }
+
+  /// Change account image visibility
+  void _chooseAccountImageVisibility() async {
+    final newLevel = await showDialog<AccountImageVisibilityLevels>(
+        context: context,
+        builder: (c) => AlertDialog(
+              title: Text(tr("Account image visiblity")),
+              content:
+                  Text(tr("Please choose new account image visibility level:")),
+              actions: <Widget>[
+                MaterialButton(
+                  child: Text(tr("Everyone")),
+                  onPressed: () =>
+                      Navigator.pop(c, AccountImageVisibilityLevels.EVERYONE),
+                ),
+                MaterialButton(
+                  child: Text(tr("Connected users")),
+                  onPressed: () => Navigator.pop(
+                      c, AccountImageVisibilityLevels.COMUNIC_USERS),
+                ),
+                MaterialButton(
+                  child: Text(tr("My friends")),
+                  onPressed: () => Navigator.pop(
+                      c, AccountImageVisibilityLevels.FRIENDS_ONLY),
+                )
+              ],
+            ));
+
+    if (newLevel == null) return;
+
+    if (!await SettingsHelper.setAccountImageVisibilityLevel(newLevel)) {
+      showSimpleSnack(
+          context, tr("Could not update account image visibility level!"));
+      return;
+    }
+
+    _key.currentState.refresh();
+  }
 }