Wi-Fi suggestion API for internet connectivity

Devices running Android 10 (API level 29) and higher allow your app to add network credentials for a device to auto-connect to a Wi-Fi access point. You can supply suggestions for which network to connect to using WifiNetworkSuggestion. The platform ultimately chooses which access point to accept based on the input from your app and others.

The following code sample shows how to provide credentials for one open, one WPA2, and one WPA3 network:

val suggestion1 = WifiNetworkSuggestion.Builder()
        .setSsid("test111111")
        .setIsAppInteractionRequired() // Optional (Needs location permission)
        .build()

val suggestion2 = WifiNetworkSuggestion.Builder()
        .setSsid("test222222")
        .setWpa2Passphrase("test123456")
        .setIsAppInteractionRequired() // Optional (Needs location permission)
        .build()

val suggestion3 = WifiNetworkSuggestion.Builder()
        .setSsid("test333333")
        .setWpa3Passphrase("test6789")
        .setIsAppInteractionRequired() // Optional (Needs location permission)
        .build()

val suggestionsList = listOf(suggestion1, suggestion2, suggestion3)

val wifiManager = context.getSystemService(Context.WIFI_SERVICE) as WifiManager

val status = wifiManager.addNetworkSuggestions(suggestionsList);
if (status != WifiManager.STATUS_NETWORK_SUGGESTIONS_SUCCESS) {
    // do error handling here
}

// Optional (Wait for post connection broadcast to one of your suggestions)
val intentFilter = IntentFilter(WifiManager.ACTION_WIFI_NETWORK_SUGGESTION_POST_CONNECTION);

val broadcastReceiver = object : BroadcastReceiver() {
    override fun onReceive(context: Context, intent: Intent) {
        if (!intent.action.equals(WifiManager.ACTION_WIFI_NETWORK_SUGGESTION_POST_CONNECTION)) {
            return;
        }
        // do post connect processing here
    }
};
context.registerReceiver(broadcastReceiver, intentFilter);

final WifiNetworkSuggestion suggestion1 =
  new WifiNetworkSuggestion.Builder()
  .setSsid("test111111")
  .setIsAppInteractionRequired() // Optional (Needs location permission)
  .build()

final WifiNetworkSuggestion suggestion2 =
  new WifiNetworkSuggestion.Builder()
  .setSsid("test222222")
  .setWpa2Passphrase("test123456")
  .setIsAppInteractionRequired() // Optional (Needs location permission)
  .build()

final WifiNetworkSuggestion suggestion3 =
  new WifiNetworkSuggestion.Builder()
  .setSsid("test333333")
  .setWpa3Passphrase("test6789")
  .setIsAppInteractionRequired() // Optional (Needs location permission)
  .build()

final List<WifiNetworkSuggestion> suggestionsList =
  new ArrayList<WifiNetworkSuggestion> {{
    add(suggestion1);
    add(suggestion2);
    add(suggestion3);
  }};

final WifiManager wifiManager =
  (WifiManager) context.getSystemService(Context.WIFI_SERVICE);

final int status = wifiManager.addNetworkSuggestions(suggestionsList);
if (status != WifiManager.STATUS_NETWORK_SUGGESTIONS_SUCCESS) {
// do error handling here…
}

// Optional (Wait for post connection broadcast to one of your suggestions)
final IntentFilter intentFilter =
  new IntentFilter(WifiManager.ACTION_WIFI_NETWORK_SUGGESTION_POST_CONNECTION);

final BroadcastReceiver broadcastReceiver = new BroadcastReceiver() {
  @Override
  public void onReceive(Context context, Intent intent) {
    if (!intent.getAction().equals(
      WifiManager.ACTION_WIFI_NETWORK_SUGGESTION_POST_CONNECTION)) {
      return;
    }
    // do post connect processing here...
  }
};
context.registerReceiver(broadcastReceiver, intentFilter);

The suggestions from the app must be approved by the user before the platform initiates a connection to them. This approval is provided by the user in response to a notification the first time the platform finds a network matching one of the suggestions from the app in scan results. When the platform connects to one of the network suggestions, the settings show text that attributes the network connection to the corresponding suggester app.

Handling user disconnects

If the user uses the Wi-Fi picker to explicitly disconnect from one of the network suggestions when connected to it, then that network is blacklisted for 24 hours. During the blacklist period, that network will not be considered for auto-connection, even if the app removes and re-adds the network suggestion corresponding to the network.

Changing approval status for app

A user declining the network suggestion notification removes the CHANGE_WIFI_STATE permission from the app. The user can grant this approval later by going into the Wi-Fi control menu (Settings > Apps & notifications > Special App access > Wi-Fi Control > App name).