android-wifi

I am developing an App to check Wifi points. I am getting error "java.lang.SecurityException: Need ACCESS_COARSE_LOCATION or ACCESS_FINE_LOCATION permission to get scan results" at wifiManager.getScanResults() even though I already declared those permissions. main activity public class MainActivity extends AppCompatActivity { WifiManager wifiManager; String[] wifis; WifiReceiver wifiReceiver; ListView wifiListView; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); wifiListView = (ListView) findViewById(R

I got this crazy idea that I don't know is possible or not... what I want to do is set up my phone as wifi access point, then allow people to connect to it, but handle all incoming http traffic myself. So: phone wifi in access point mode; open wifi network (this tidbit works - yes I know it's not officially supported but then I have no intention to distribute put this app on the open market or so, it works on my phone and that's good enough for me). client can connect to the phone (e.g. my laptop: this also works). when client tries to open an http connection to any random server, this has to

I've tried to create a Wi-Fi tethering hotspot in Android Marshmallow using the following code. public class WifiAccessManager { private static final String SSID = "1234567890abcdef"; public static boolean setWifiApState(Context context, boolean enabled) { //config = Preconditions.checkNotNull(config); try { WifiManager mWifiManager = (WifiManager) context.getSystemService(Context.WIFI_SERVICE); if (enabled) { mWifiManager.setWifiEnabled(false); } WifiConfiguration conf = getWifiApConfiguration(); mWifiManager.addNetwork(conf); return (Boolean) mWifiManager.getClass().getMethod(

Background I've noticed that in WifiManager class there is a function called addNetwork , that might be useful if I want to restore or save networks information (network name AKA SSID, together with the password and the type), so that I could also connect to it. The problem I can't find much information about how to do such a thing. I've seen various examples on StackOverflow, and if I target Android API 28 (or below), I indeed succeed to make it add a network and even connect to it. When targeting Android 29 (Android Q), however, it fails to add the network. What I've found Since I'm trying

I am trying to setup the wifi on my android things raspberry pi following the documentation . My Ssid contains a space in the name let's say "my ssid". I tried to put quotes around it like this: $ adb shell am startservice \ -n com.google.wifisetup/.WifiSetupService \ -a WifiSetupService.Connect \ -e ssid "my ssid" \ -e passphrase secretpassword When looking at the logcat for the wifi connection I see: WifiNetworkHistory: saving network history: "my"NONE gw: null Network Selection-status: NETWORK_SELECTION_ENABLED ephemeral=false choice:null link:0 status:2 nid:0 hasEverConnected: false

This is possibly off-topic for SO, if so I apologise (and gladly accept the flag for closure), but I'm having issues figuring out why when WIFI is on, but not connected to any access point (on my android device), it vastly improves the accuracy of network provider when using LocationManager . Without it on, the general network location result is about 1 mile away from my current position. Also, most of the time the lat/lng values returned are different, so it's not even that it requested once and just cached the result in lastKnownLocation() Obviously I'm using both GPS and Network providers

I need to find the device's ip address when it's hosting a hotspot. I've used this code so far : //if is using Hotspot for (Enumeration<NetworkInterface> en = NetworkInterface.getNetworkInterfaces(); en.hasMoreElements();) { NetworkInterface intf = en.nextElement(); if (intf.getName().contains("wlan")) { for (Enumeration<InetAddress> enumIpAddr = intf.getInetAddresses(); enumIpAddr.hasMoreElements();) { InetAddress inetAddress = enumIpAddr.nextElement(); if (!inetAddress.isLoopbackAddress() && (inetAddress.getAddress().length == 4)) { return inetAddress.getHostAddress(); } } } } This works