Android安卓获取网络状态

首先在AndroidManifest.xml添加权限

1,判断是否有网络连接

 public boolean isNetworkConnected(Context context) {
     if (context != null) {
         ConnectivityManager mConnectivityManager = (ConnectivityManager) context
                 .getSystemService(Context.CONNECTIVITY_SERVICE);
         NetworkInfo mNetworkInfo = mConnectivityManager.getActiveNetworkInfo();
         if (mNetworkInfo != null) {
             return mNetworkInfo.isAvailable();
         }
     }
     return false;
 }

2.判断WIFI网络是否可用

 public boolean isWifiConnected(Context context) {
     if (context != null) {
         ConnectivityManager mConnectivityManager = (ConnectivityManager) context
                 .getSystemService(Context.CONNECTIVITY_SERVICE);
         NetworkInfo mWiFiNetworkInfo = mConnectivityManager
                 .getNetworkInfo(ConnectivityManager.TYPE_WIFI);
         if (mWiFiNetworkInfo != null) {
             return mWiFiNetworkInfo.isAvailable();
         }
     }
     return false;
 }

3.判断MOBILE网络是否可用

 public boolean isMobileConnected(Context context) {
     if (context != null) {
         ConnectivityManager mConnectivityManager = (ConnectivityManager) context
                 .getSystemService(Context.CONNECTIVITY_SERVICE);
         NetworkInfo mMobileNetworkInfo = mConnectivityManager
                 .getNetworkInfo(ConnectivityManager.TYPE_MOBILE);
         if (mMobileNetworkInfo != null) {
             return mMobileNetworkInfo.isAvailable();
         }
     }
     return false;
 }

4.判断网络类型

        //返回值 -1：没有网络  1：WIFI网络2：wap网络3：net网络
 public static int GetNetype(Context context)
 {
     int netType = -1;
     ConnectivityManager connMgr = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
     NetworkInfo networkInfo = connMgr.getActiveNetworkInfo();
     if(networkInfo==null)
     {
         return netType;
     }
     int nType = networkInfo.getType();
     if(nType==ConnectivityManager.TYPE_MOBILE)
     {
         if(networkInfo.getExtraInfo().toLowerCase().equals("cmnet"))
         {
             netType = 3;
         }
         else
         {
             netType = 2;
         }
     }
     else if(nType==ConnectivityManager.TYPE_WIFI)
     {
         netType = 1;
     }
     return netType;
 }