Skip to content

Instantly share code, notes, and snippets.

Embed
What would you like to do?
Quick and dirty list of WiFi AP's and connect to it. Only WPA/WPA2 tested.
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android" android:installLocation="auto" package="dk.ostebaronen.wifishizniz" android:versionCode="1" android:versionName="1.0">
<uses-sdk android:targetSdkVersion="17" />
<application android:label="WiFiShizniz"></application>
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
<uses-permission android:name="android.permission.CHANGE_WIFI_STATE" />
</manifest>
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:minWidth="25px"
android:minHeight="25px">
<ListView
android:minWidth="25px"
android:minHeight="25px"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:id="@+id/listView1" />
</LinearLayout>
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<EditText
android:id="@+id/password"
android:inputType="textPassword"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="4dp"
android:layout_marginLeft="4dp"
android:layout_marginRight="4dp"
android:layout_marginBottom="16dp"
android:hint="Password" />
</LinearLayout>
using System;
using System.Linq;
using System.Threading;
using Android.App;
using Android.Content;
using Android.Net.Wifi;
using Android.Runtime;
using Android.Widget;
using Android.OS;
namespace WifiShizniz
{
[Activity(Label = "WifiShizniz", MainLauncher = true, Icon = "@drawable/icon")]
public class Activity1 : Activity
{
private ListView _listView;
private ArrayAdapter<WifiEntry> _adapter;
private string _selectedSsid;
protected override void OnCreate(Bundle bundle)
{
base.OnCreate(bundle);
// Set our view from the "main" layout resource
SetContentView(Resource.Layout.Main);
_listView = FindViewById<ListView>(Resource.Id.listView1);
RefreshWifiList();
_listView.ItemClick += ListViewOnItemClick;
}
private void ListViewOnItemClick(object sender, AdapterView.ItemClickEventArgs itemClickEventArgs)
{
var wifiItem = _adapter.GetItem(itemClickEventArgs.Position);
_selectedSsid = wifiItem.SSID;
if (wifiItem.Encryption.Contains("WPA"))
{
OnCreateDialog(WpaDialog).Show();
}
else if (wifiItem.Encryption.Contains("WEP"))
{
OnCreateDialog(WepDialog).Show();
}
else
{
//Other, captive portal, open network, etc.
}
}
private void RefreshWifiList()
{
var wifiManager = GetSystemService(WifiService).JavaCast<WifiManager>();
wifiManager.StartScan();
ThreadPool.QueueUserWorkItem(lol =>
{
while (true)
{
Thread.Sleep(TimeSpan.FromSeconds(3));
var wifiList = wifiManager.ScanResults;
if (null == _adapter)
{
_adapter = new ArrayAdapter<WifiEntry>(this, Android.Resource.Layout.SimpleListItem1,
Android.Resource.Id.Text1);
RunOnUiThread(() => _listView.Adapter = _adapter);
}
if (_adapter.Count > 0)
{
RunOnUiThread(() => _adapter.Clear());
}
foreach (var wifi in wifiList)
{
var wifi1 = wifi;
RunOnUiThread(() => _adapter.Add(new WifiEntry { SSID = wifi1.Ssid, Encryption = wifi1.Capabilities}));
}
RunOnUiThread(() => _adapter.NotifyDataSetChanged());
}
});
}
private const int WpaDialog = 0;
private const int WepDialog = 1;
protected override Dialog OnCreateDialog(int id)
{
var customView = LayoutInflater.Inflate(Resource.Layout.wifi_dialog, null);
var builder = new AlertDialog.Builder(this);
builder.SetIcon(Android.Resource.Drawable.IcMenuPreferences);
builder.SetView(customView);
builder.SetTitle("Set WiFi password");
switch(id)
{
case WpaDialog:
{
builder.SetPositiveButton("OK", WpaOkClicked);
builder.SetNegativeButton("Cancel", CancelClicked);
return builder.Create();
}
case WepDialog:
{
builder.SetPositiveButton("OK", WepOkClicked);
builder.SetNegativeButton("Cancel", CancelClicked);
return builder.Create();
}
}
return base.OnCreateDialog(id);
}
private void WepOkClicked(object sender, DialogClickEventArgs e)
{
var dialog = (AlertDialog) sender;
var password = (EditText) dialog.FindViewById(Resource.Id.password);
var conf = new WifiConfiguration();
conf.Ssid = "\"" + _selectedSsid + "\"";
conf.WepKeys[0] = "\"" + password + "\"";
conf.WepTxKeyIndex = 0;
conf.AllowedKeyManagement.Set((int)KeyManagementType.None);
conf.AllowedGroupCiphers.Set((int)GroupCipherType.Wep40);
var wifiManager = GetSystemService(WifiService).JavaCast<WifiManager>();
wifiManager.AddNetwork(conf);
foreach (var network in
wifiManager.ConfiguredNetworks.Where(network => network.Ssid.Contains(_selectedSsid)))
{
wifiManager.Disconnect();
wifiManager.EnableNetwork(network.NetworkId, true);
wifiManager.Reconnect();
}
}
private void WpaOkClicked(object sender, DialogClickEventArgs e)
{
var dialog = (AlertDialog)sender;
var password = (EditText)dialog.FindViewById(Resource.Id.password);
var conf = new WifiConfiguration();
conf.Ssid = "\"" + _selectedSsid + "\"";
conf.PreSharedKey = "\"" + password + "\"";
var wifiManager = GetSystemService(WifiService).JavaCast<WifiManager>();
wifiManager.AddNetwork(conf);
foreach (var network in
wifiManager.ConfiguredNetworks.Where(network => network.Ssid.Contains(_selectedSsid)))
{
wifiManager.Disconnect();
wifiManager.EnableNetwork(network.NetworkId, true);
wifiManager.Reconnect();
}
}
private void CancelClicked(object sender, DialogClickEventArgs e)
{
}
}
public class WifiEntry
{
public string SSID { get; set; }
public string Encryption { get; set; }
public override string ToString()
{
return SSID + " : " + Encryption;
}
}
}
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
You can’t perform that action at this time.