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"/>