Java issue android Qt

[ENSAO_CHEIKH]

Hello all,

Please I am trying to code a programm in Java so that I could call it from c++ to do Wifi Scan and to get the Ip address of the gateway, but I make some mistake, here is the code below

package org.qtproject.example.musiclist;



import android.content.Context;
import android.os.Bundle;
import android.widget.TextView;
import android.net.*;
import android.net.wifi.WifiManager;



public  class MusicList  {

    public String s_dns1;
    public String s_dns2;
    public String s_gateway;
    public String s_ipAddress;
    public String s_leaseDuration;
    public String s_netmask;
    public String s_serverAddress;

    DhcpInfo d;
    WifiManager wifii;

    /**
     * Called when the activity is first created.

     */


       public  void doTest(){
         wifii = (WifiManager)getSystemService(Context.WIFI_SERVICE);
         d = wifii.getDhcpInfo();

         s_dns1 = "DNS 1: " + String.valueOf(d.dns1);
         s_dns2 = "DNS 2: " + String.valueOf(d.dns2);
         s_gateway = "Default Gateway: " + String.valueOf(d.gateway);
         s_ipAddress = "IP Address: " + String.valueOf(d.ipAddress);
         s_leaseDuration = "Lease Time: " + String.valueOf(d.leaseDuration);
         s_netmask = "Subnet Mask: " + String.valueOf(d.netmask);
         s_serverAddress = "Server IP: " + String.valueOf(d.serverAddress);

         //dispaly them
         // info= (TextView) findViewById(R.id.infolbl);
         //info.setText("Network Info\n"+s_dns1+"\n"+s_dns2+"\n"+s_gateway+"\n"+s_ipAddress+"\n"+s_leaseDuration+"\n"+s_netmask+"\n"+s_serverAddress);
         System.out.println("s_gateway");
         System.out.println(s_serverAddress);
          System.out.println(s_gateway);

         }

     public  void tester(){

         System.out.println("Je teste Java");
          doTest();
         }



}

the error message is like :

> Task :compileDebugJavaWithJavac FAILED
D:\ProgQt\build-app-Android_for_armeabi_v7a_arm64_v8a_x86_x86_64_Clang_Qt_5_15_0_for_Android-Debug\android-build\src\org\qtproject\example\musiclist\MusicList.java:83: error: cannot find symbol
         this.wifii = (WifiManager)getSystemService(Context.WIFI_SERVICE);
                                   ^
  symbol:   method getSystemService(String)
  location: class MusicList
Note: Some input files use or override a deprecated API.
Note: Recompile with -Xlint:deprecation for details.
1 error

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':compileDebugJavaWithJavac'.
> Compilation failed; see the compiler error output for details.

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.

* Get more help at https://help.gradle.org

BUILD FAILED in 12s
12 actionable tasks: 2 executed, 10 up-to-date
Building the android package failed!
  -- For more information, run this command with --verbose.
23:53:19: Le processus "D:\Qt\5.15.0\android\bin\androiddeployqt.exe" s'est terminé avec le code 14.
Erreur lors de la compilation/déploiement du projet app (kit : Android for armeabi-v7a,arm64-v8a,x86,x86_64 (Clang Qt 5.15.0 for Android))
When executing step "Build Android APK"
23:53:19: Elapsed time: 00:21.

[ENSAO_CHEIKH]

Please, any suggestion for this case?