package com.example.bla;
import android.Manifest;
import android.annotation.SuppressLint;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.IntentFilter;
import android.content.pm.PackageManager;
import android.net.wifi.ScanResult;
import android.net.wifi.WifiConfiguration;
import android.net.wifi.WifiManager;
import android.net.wifi.WifiNetworkSuggestion;
import android.os.Build;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ListView;
import android.widget.Toast;
import androidx.annotation.NonNull;
import androidx.appcompat.app.AlertDialog;
import androidx.appcompat.app.AppCompatActivity;
import androidx.core.app.ActivityCompat;
import androidx.core.content.ContextCompat;
import java.util.ArrayList;
import java.util.List;
public class MainActivity extends AppCompatActivity {
private WifiManager wifiManager;
private ListView listView;
private Button buttonScan;
private int size = 0;
private List<ScanResult> results;
private ArrayList<String> arrayList = new ArrayList<String>();
private ArrayAdapter adapter;
private int REQUEST_LOCATION = 101;
private EditText input;
private AlertDialog ad;
private int ItemNumb;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
buttonScan = findViewById(R.id.scanBtn);
buttonScan.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
scanWifi();
}
});
listView = findViewById(R.id.wifilist);
wifiManager = (WifiManager) getApplicationContext().getSystemService(Context.WIFI_SERVICE);
if (!wifiManager.isWifiEnabled()) {
Toast.makeText(this, "Wifi is disabled... Enabling it", Toast.LENGTH_LONG).show();
wifiManager.setWifiEnabled(true);
}
adapter = new ArrayAdapter<>(this, android.R.layout.simple_list_item_1, arrayList);
listView.setAdapter(adapter);
AlertDialog.Builder alertBuilder = new AlertDialog.Builder(MainActivity.this);
alertBuilder.setTitle("Connect to network?");
alertBuilder.setMessage("Please enter network password");
input = new EditText(MainActivity.this);
alertBuilder.setView(input);
alertBuilder.setPositiveButton("Submit", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialogInterface, int i) {
connectToNetwork("\"" + results.get(ItemNumb).SSID.toString() + "\"", input.getText().toString());
}
});
alertBuilder.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialogInterface, int i) {
dialogInterface.dismiss();
}
});
ad = alertBuilder.create();
listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> adapterView, View view, int i, long l) {
ItemNumb = I;
ad.show();
}
});
//IntentFilter intentFilter = new IntentFilter();
//intentFilter.addAction("android.net.wifi.SCAN_RESULTS");
//registerReceiver(wifiReceiver, intentFilter);
}
private void scanWifi() {
if (ContextCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
requestPermissions(new String[]{Manifest.permission.ACCESS_FINE_LOCATION}, REQUEST_LOCATION);
}
if (ContextCompat.checkSelfPermission(this, Manifest.permission.ACCESS_WIFI_STATE) != PackageManager.PERMISSION_GRANTED) {
requestPermissions(new String[]{Manifest.permission.ACCESS_WIFI_STATE}, REQUEST_LOCATION);
}
arrayList.clear();
registerReceiver(wifiReceiver, new IntentFilter(WifiManager.SCAN_RESULTS_AVAILABLE_ACTION));
wifiManager.startScan();
Toast.makeText(this, "Scanning Wifi...", Toast.LENGTH_SHORT).show();
}
@Override
public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
if (grantResults.length == 0 || grantResults[0] != PackageManager.PERMISSION_GRANTED) {
Toast.makeText(getApplicationContext(), permissions[0] + " permission refused", Toast.LENGTH_SHORT).show();
} else {
Toast.makeText(getApplicationContext(), permissions[0] + " permission granted", Toast.LENGTH_SHORT).show();
}
}
BroadcastReceiver wifiReceiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
results = wifiManager.getScanResults();
unregisterReceiver(this);
for (ScanResult scanResult : results) {
arrayList.add(scanResult.SSID + " - " + scanResult.capabilities);
adapter.notifyDataSetChanged();
}
}
};
private void connectToNetwork(String networkSSID, String networkPass)
{
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q)
{
WifiNetworkSuggestion networkSuggestion1 =
new WifiNetworkSuggestion.Builder()
.setSsid(networkSSID)
.setWpa2Passphrase(networkPass)
.build();
WifiNetworkSuggestion networkSuggestion2 =
new WifiNetworkSuggestion.Builder()
.setSsid(networkSSID)
.setWpa3Passphrase(networkPass)
.build();
List<WifiNetworkSuggestion> suggestionsList = new ArrayList<>();
suggestionsList.add(networkSuggestion1);
suggestionsList.add(networkSuggestion2);
wifiManager.addNetworkSuggestions(suggestionsList);
}
else
{
WifiConfiguration wifiConfiguration = new WifiConfiguration();
wifiConfiguration.SSID = String.format("\"%s\"", networkSSID);
wifiConfiguration.preSharedKey = String.format("\"%s\"", networkPass);
int wifiID = wifiManager.addNetwork(wifiConfiguration);
wifiManager.enableNetwork(wifiID, true);
}
}
}
Rick
