You can now create a new persistent group via WifiP2pManager.createGroup(..). It will create a new group and make the calling device (A) group owner and can do what you described. The only problem is once you create a group and connect to another device, that other device (B) will remember that specific group. If you … Read more
its an old post but this might help someone… WifiManager wifiManager = (WifiManager) context.getSystemService(Context.WIFI_SERVICE); int numberOfLevels = 5; WifiInfo wifiInfo = wifiManager.getConnectionInfo(); int level = WifiManager.calculateSignalLevel(wifiInfo.getRssi(), numberOfLevels); Documentation: public static int calculateSignalLevel (int rssi, int numLevels)
Stanislav’s answer is correct but incomplete because only works in Lollipop. I’ve wrote a complete solution for Lollipop and Marshmallow onwards for you to route all network requests through WiFi when connected to a specific network of your choice. Kotlin In your Activity, @RequiresApi(Build.VERSION_CODES.LOLLIPOP) class RoutingActivity : Activity() { private var mConnectivityManager: ConnectivityManager? = null … Read more
Using “svc” through ADB (rooted required): Enable: adb shell su -c ‘svc wifi enable’ Disable: adb shell su -c ‘svc wifi disable’ Using Key Events through ADB: adb shell am start -a android.intent.action.MAIN -n com.android.settings/.wifi.WifiSettings adb shell input keyevent 20 & adb shell input keyevent 23 The first line launch “wifi.WifiSettings” activity which open the … Read more
Wifi is not available on the emulator if you are using below of API level 25. When using an AVD with API level 25 or higher, the emulator provides a simulated Wi-Fi access point (“AndroidWifi”), and Android automatically connects to it. More Information: https://developer.android.com/studio/run/emulator.html#wifi
There is no official API, but you can use reflection to handle it. I know some say, it’s not recommended, however imho I say, screw it if Google doesn’t want to provide an API for whatever reason. Below is the code of an activity I used in my application, where the user can enable/disable the … Read more
I encountered the same problem. Since both devices know the group owner’s ip, it is already possible to send a message to the group owner. The first message you send can contain the ip address of the other device; from then on, bidirectional communication is possible. Here’s a possibility for retrieving your ip in java: … Read more
So far what is working for me on the majority of devices I have tested with, with a fallback option to at least stop the dreaded ‘looping request’ and to allow a successful manual connection The below code is written in Kotlin, please google how to covert to Java if needed. Create a NetworkCallback which … Read more
So something to consider is that Formatter.formatIpAddress(int) is being deprecated: This method was deprecated in API level 12. Use getHostAddress(), which supports both IPv4 and IPv6 addresses. This method does not support IPv6 addresses. So using formatIpAddress(int) is likely not a good long term solution, although it will work. Here is a potential solution if … Read more