Android_判断手机网络状态

//这是一个工具类

public static int getNetype(Context context) {    int netType = -1;    ConnectivityManager connMgr = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);

    NetworkInfo networkInfo = connMgr.getActiveNetworkInfo();

    //无网络    if (networkInfo == null) {        return netType;    }    int nType = networkInfo.getType();

    //手机网络    if (nType == ConnectivityManager.TYPE_MOBILE) {        netType = 2;    } else if (nType == ConnectivityManager.TYPE_WIFI) {//wifi网络        netType = 1;    }

    //返回    return netType;}

//加权限

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