判断Android设备是否使用代理上网

/*
 * 判断设备 是否使用代理上网
 * */
private boolean isWifiProxy(Context context) {

    final boolean IS_ICS_OR_LATER = Build.VERSION.SDK_INT >= Build.VERSION_CODES.ICE_CREAM_SANDWICH;

    String proxyAddress;

    int proxyPort;

    if (IS_ICS_OR_LATER) {

        proxyAddress = System.getProperty("http.proxyHost");

        String portStr = System.getProperty("http.proxyPort");

        proxyPort = Integer.parseInt((portStr != null ? portStr : "-1"));

    } else {

        proxyAddress = android.net.Proxy.getHost(context);

        proxyPort = android.net.Proxy.getPort(context);

    }

    return (!TextUtils.isEmpty(proxyAddress)) && (proxyPort != -1);

}

转自https://blog.csdn.net/u012881042/article/details/64440525