在Unity中的Android上启用/禁用Wifi [英] Enable/Disable Wifi on Android in Unity

问题描述

我正在尝试在Android设备上从Unity启用或禁用Wifi. 我尝试做在论坛上发现的不同事情，但没有成功.

I am trying to enable or disable Wifi from Unity on my Android device. I tried to do the different things I found on the forum without success.

如果我这样做:

using(var unityPlayer = new AndroidJavaClass("com.unity3d.player.UnityPlayer"))
{
     string wifiServiceName = unityPlayer.Get<string>("WIFI_SERVICE");
     using(var wifiManager = unityPlayer.Call<AndroidJavaObject>("getSystemService", wifiServiceName))
     {
         wifiManager.Call("setWifiEnabled", false);
     }
}

我有一个错误，说WIFI_SERVICE不存在.

I have an error saying that WIFI_SERVICE doesn't exist.

如果我这样做:

using (AndroidJavaObject activity = new AndroidJavaClass("com.unity3d.player.UnityPlayer").GetStatic<AndroidJavaObject>("currentActivity"))
{
    using (var wifiManager = activity.Call<AndroidJavaObject>("getSystemService","wifi"))
    {
        wifiManager.Call<AndroidJavaObject>("setWifiEnabled", false);
    }   
}

我有一个错误，说setWifiEnabled不是函数，(如果我执行CallStatic也不是静态函数).

I have an error saying that setWifiEnabled is not a function, (nor a static function if I do CallStatic).

我已正确合并我的manifest.xml，我可以检查我是否拥有对应用程序管理器的所有权限.

I have my manifest.xml correctly merged, I can check that I have all the permissions on the application manager.

我花了几个小时试图弄清楚该怎么做，但我被困住了！

I spent few hours trying to figure out how to do that and I am stuck!

有人知道这样做的简单方法吗?

Does anyone know a simple way to do so?

非常感谢您的帮助，

本杰明

推荐答案

根据

According to Android Doc, setWifiEnabled takes bool as parameter and returns bool too.

您的第二个代码几乎快要结束了. 参数正确，但是无法提供返回类型.您将AndroidJavaObject而不是bool用作返回类型.

Your second code is almost close. You got the parameter right but failed to provide the return type. You put AndroidJavaObject as the return type instead of bool.

在第二个代码中，只需将wifiManager.Call<AndroidJavaObject>("setWifiEnabled", false);替换为wifiManager.Call<bool>("setWifiEnabled", false);.

In your second code, simply replace wifiManager.Call<AndroidJavaObject>("setWifiEnabled", false); with wifiManager.Call<bool>("setWifiEnabled", false);.

这应该有效，前提是您已获得许可.给您的一种建议是将您的代码放在try catch子句中.如果您的Android函数调用中的某些内容为null或失败，这将防止某些奇怪的行为.

This should work, assuming that you have your permission in place. One advice to you is to put your code in a try catch clause. This will prevent some weird behavior if something is null or failed in your Android function calls.

public bool setWifiEnabled(bool enabled)
{
    using (AndroidJavaObject activity = new AndroidJavaClass("com.unity3d.player.UnityPlayer").GetStatic<AndroidJavaObject>("currentActivity"))
    {
        try
        {
            using (var wifiManager = activity.Call<AndroidJavaObject>("getSystemService", "wifi"))
            {
                return wifiManager.Call<bool>("setWifiEnabled", enabled);
            }
        }
        catch (Exception e)
        {
        }
    }
    return false;
}

public bool isWifiEnabled()
{
    using (AndroidJavaObject activity = new AndroidJavaClass("com.unity3d.player.UnityPlayer").GetStatic<AndroidJavaObject>("currentActivity"))
    {
        try
        {
            using (var wifiManager = activity.Call<AndroidJavaObject>("getSystemService", "wifi"))
            {
                return wifiManager.Call<bool>("isWifiEnabled");
            }
        }
        catch (Exception e)
        {

        }
    }
    return false;
}

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