Android判断上网方式(Wifi还是数据流量)

首先要在AndroidManifest.xml加上权限：

<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>

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; }

检查网络类型：

int netType = info.getType(); int netSubtype = info.getSubtype(); if (netType == ConnectivityManager.TYPE_WIFI) {  //WIFI   return info.isConnected(); } else if (netType == ConnectivityManager.TYPE_MOBILE && netSubtype == TelephonyManager.NETWORK_TYPE_UMTS && !mTelephony.isNetworkRoaming()) {   //MOBILE   return info.isConnected(); } else {    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：

<span style="font-family: Arial, Helvetica, sans-serif;">public boolean isMobileConnected(Context context) {  </span><span style="font-family: Arial, Helvetica, sans-serif;">        if (context != null) {  </span>

            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;      }

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