Android网络类型判断及IP地址获取-白红宇

Android网络类型判断及IP地址获取

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发布时间：2019-05-27

本文共 4135 字，大约阅读时间需要 13 分钟。

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判断有无网络连接：

ConnectivityManager mConnectivity = (ConnectivityManager)getSystemService(Context.CONNECTIVITY_SERVICE);   TelephonyManager mTelephony = (TelephonyManager)this.getSystemService(TELEPHONY_SERVICE);   //检查网络连接   NetworkInfo info = mConnectivity.getActiveNetworkInfo();     if (info == null || !mConnectivity.getBackgroundDataSetting()) {   return false;   }

判断WiFi是否已连接：

/**  * make true current connect service is wifi  * @param mContext  * @return  */  private static boolean isWifi(Context mContext) {      ConnectivityManager connectivityManager = (ConnectivityManager) mContext.getSystemService(Context.CONNECTIVITY_SERVICE);      NetworkInfo activeNetInfo = connectivityManager.getActiveNetworkInfo();      if (activeNetInfo != null && activeNetInfo.getType() == ConnectivityManager.TYPE_WIFI) {          return true;      }      return false;  }

判断WiFi和移动流量是否已连接：

public static boolean checkNetworkConnection(Context context)     {         final ConnectivityManager connMgr = (ConnectivityManager)context.getSystemService(Context.CONNECTIVITY_SERVICE);           final android.net.NetworkInfo wifi =connMgr.getNetworkInfo(ConnectivityManager.TYPE_WIFI);         final android.net.NetworkInfo mobile =connMgr.getNetworkInfo(ConnectivityManager.TYPE_MOBILE);           if(wifi.isAvailable()||mobile.isAvailable())  //getState()方法是查询是否连接了数据网络             return true;         else             return false;     }

只判断移动网络连接是否正常：

ConnectivityManager mConnectivityManager = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);        NetworkInfo mMobileNetworkInfo = mConnectivityManager.getNetworkInfo(ConnectivityManager.TYPE_MOBILE);   //获取移动网络信息      if (mMobileNetworkInfo != null) {            return mMobileNetworkInfo.isAvailable();    //getState()方法是查询是否连接了数据网络      }    }    return false;

一个工具类：

import java.net.InetAddress;  import java.net.NetworkInterface;  import java.net.SocketException;  import java.util.Enumeration;    import android.app.AlertDialog;  import android.content.Context;  import android.content.DialogInterface;  import android.content.Intent;  import android.net.ConnectivityManager;  import android.net.NetworkInfo;  import android.net.wifi.WifiInfo;  import android.net.wifi.WifiManager;  import android.provider.Settings;  import android.telephony.TelephonyManager;  import android.util.Log;    public class NetWorkUtils {        //  Context context;      public static boolean isNetWorkAvaliable(Context context){                    ConnectivityManager connect = (ConnectivityManager)context.getSystemService(Context.CONNECTIVITY_SERVICE);          if(connect == null){              return false;          }else{              NetworkInfo[] info = connect.getAllNetworkInfo();              if(info != null){                  for(int i=0;i
    
            wifiManager.setWifiEnabled(true);       //             }          WifiInfo wifiInfo = wifiManager.getConnectionInfo();          int ipAddress = wifiInfo.getIpAddress();          String ip = intToIp(ipAddress);          return ip;      }            private static String intToIp(int i) {          return (i & 0xFF ) + "." +          ((i >> 8 ) & 0xFF) + "." +          ((i >> 16 ) & 0xFF) + "." +          ( i >> 24 & 0xFF) ;      }            //使用GPRS      public static String getLocalIpAddress() {          try {              for (Enumeration
     
       en = NetworkInterface                      .getNetworkInterfaces(); en.hasMoreElements();) {                  NetworkInterface intf = en.nextElement();                  for (Enumeration
      
        enumIpAddr = intf                          .getInetAddresses(); enumIpAddr.hasMoreElements();) {                      InetAddress inetAddress = enumIpAddr.nextElement();                      if (!inetAddress.isLoopbackAddress()) {                          return inetAddress.getHostAddress().toString();                      }                  }              }          } catch (SocketException ex) {              Log.e("Exception", ex.toString());          }          return "127.0.0.1";      }    }