android floating window (#8268)

Signed-off-by: 21pages <sunboeasy@gmail.com>

flutter/lib/consts.dart

@@ -136,6 +136,8 @@ const String kOptionAllowRemoveWallpaper = "allow-remove-wallpaper";
 
 const String kOptionToggleViewOnly = "view-only";
 
+const String kOptionDisableFloatingWindow = "disable-floating-window";
+
 const String kUrlActionClose = "close";
 
 const String kTabLabelHomePage = "Home";

flutter/lib/mobile/pages/server_page.dart

@@ -854,6 +854,15 @@ void androidChannelInit() {
             msgBox(gFFI.sessionId, type, title, text, link, gFFI.dialogManager);
             break;
           }
+        case "stop_service":
+          {
+            print(
+                "stop_service by kotlin, isStart:${gFFI.serverModel.isStart}");
+            if (gFFI.serverModel.isStart) {
+              gFFI.serverModel.stopService();
+            }
+            break;
+          }
       }
     } catch (e) {
       debugPrintStack(label: "MethodCallHandler err:$e");

flutter/lib/models/server_model.dart

@@ -340,6 +340,20 @@ class ServerModel with ChangeNotifier {
     return res;
   }
 
+  Future<bool> checkFloatingWindowPermission() async {
+    debugPrint("androidVersion $androidVersion");
+    if (androidVersion < 23) {
+      return false;
+    }
+    if (await AndroidPermissionManager.check(kSystemAlertWindow)) {
+      debugPrint("alert window permission already granted");
+      return true;
+    }
+    var res = await AndroidPermissionManager.request(kSystemAlertWindow);
+    debugPrint("alert window permission request result: $res");
+    return res;
+  }
+
   /// Toggle the screen sharing service.
   toggleService() async {
     if (_isStart) {
@@ -367,6 +381,9 @@ class ServerModel with ChangeNotifier {
       }
     } else {
       await checkRequestNotificationPermission();
+      if (bind.mainGetLocalOption(key: kOptionDisableFloatingWindow) != 'Y') {
+        await checkFloatingWindowPermission();
+      }
       if (!await AndroidPermissionManager.check(kManageExternalStorage)) {
         await AndroidPermissionManager.request(kManageExternalStorage);
       }