migração flutter 2.2.1

lib/funcoes_gerais.dart

@@ -1,4 +1,5 @@
 import 'dart:convert';
+import 'package:get/get.dart';
 import 'package:http/http.dart' as http;
 import 'package:device_info/device_info.dart';
 import 'dart:io';
@@ -45,7 +46,7 @@ class FuncoesGerais{
     return Future<String>.value(tokenPadrao);
   }
 
-  static Future<void> registraDevice(String token) async{
+  static Future<void> registraDevice(String? token) async{
     
     if(await FuncoesGerais.checkInternetConnection()){
       if(token != null && token.isNotEmpty){
@@ -78,7 +79,7 @@ class FuncoesGerais{
         try {
           var body = json.encode(objPost);
           //var response = await http.post(url, body: body,headers: heads);
-          await http.post(url, body: body,headers: heads);
+          await http.post(Uri.parse(url), body: body,headers: heads);
           //var r = await http.post(url, body: body,headers: heads);
           //print(r);
           // if (response != null) {
@@ -112,8 +113,8 @@ class FuncoesGerais{
       heads["Content-type"] = "application/json; charset=utf-8";
 
       try {
-        var response = await http.get(url,headers: heads);
-        if (response != null) {
+        http.Response response = await http.get(Uri.parse(url),headers: heads);
+        if (!GetUtils.isNullOrBlank(response.body)!) {
           if (response.statusCode == 200) {
             var data = jsonDecode(response.body);
             objRetorno = VersaoMinimaResponse.fromJson(data);
@@ -121,7 +122,7 @@ class FuncoesGerais{
             // var v = packageInfo.version.split('.');
             // int versaoAtual = 0;
             //if(v.length > 0)versaoAtual = v[0] != null && v[0].isNotEmpty ? int.parse(v[0]) : 0;
-            if(FuncoesGerais.versaoAtual != null && objRetorno.versaoMinima > FuncoesGerais.versaoAtual){
+            if(objRetorno.versaoMinima! > FuncoesGerais.versaoAtual){
               objRetorno.vOk = false;
             }
           }