package me.pengtao.filetransfer.util; import android.content.Context; import android.net.ConnectivityManager; import android.net.NetworkInfo; import android.net.wifi.WifiInfo; import android.net.wifi.WifiManager; import android.support.annotation.NonNull; public class WifiUtils { public static String getWifiIp(@NonNull Context context) { WifiManager wifimanager = (WifiManager) context.getApplicationContext().getSystemService (Context.WIFI_SERVICE); if (wifimanager == null) { return null; } WifiInfo wifiInfo = wifimanager.getConnectionInfo(); if (wifiInfo != null) { return intToIp(wifiInfo.getIpAddress()); } return null; } private static String intToIp(int i) { return (i & 0xFF) + "." + ((i >> 8) & 0xFF) + "." + ((i >> 16) & 0xFF) + "." + ((i >> 24) & 0xFF); } public static NetworkInfo.State getWifiConnectState(Context context) { ConnectivityManager manager = (ConnectivityManager) context.getSystemService(Context .CONNECTIVITY_SERVICE); if (manager == null) { return NetworkInfo.State.DISCONNECTED; } NetworkInfo mWiFiNetworkInfo = manager.getNetworkInfo(ConnectivityManager.TYPE_WIFI); if (mWiFiNetworkInfo != null) { return mWiFiNetworkInfo.getState(); } return NetworkInfo.State.DISCONNECTED; } }