unity android 获取wifi并连接

在Unity中获取和连接WiFi需要使用Android原生代码，可以通过Unity的Android插件来实现。下面是一个简单的例子：

1.创建一个Java类作为插件，实现获取并连接WiFi的方法：

package com.example.wifiplugin;

import android.content.Context;
import android.net.wifi.ScanResult;
import android.net.wifi.WifiConfiguration;
import android.net.wifi.WifiManager;
import android.util.Log;

import java.util.List;

public class WifiPlugin {

    private static final String TAG = "WifiPlugin";

    private Context context;
    private WifiManager wifiManager;

    public WifiPlugin(Context context) {
        this.context = context;
        wifiManager = (WifiManager) context.getSystemService(Context.WIFI_SERVICE);
    }

    public void connectToWifi(String ssid, String password) {

        // Check if WiFi is enabled
        if (!wifiManager.isWifiEnabled()) {
            wifiManager.setWifiEnabled(true);
        }

        // Scan for available WiFi networks
        List<ScanResult> scanResults = wifiManager.getScanResults();
        for (ScanResult scanResult : scanResults) {
            if (scanResult.SSID.equals(ssid)) {

                // Connect to selected WiFi network
                WifiConfiguration wifiConfiguration = new WifiConfiguration();
                wifiConfiguration.SSID = "\"" + ssid + "\"";
                wifiConfiguration.preSharedKey = "\"" + password + "\"";
                wifiManager.addNetwork(wifiConfiguration);

                List<WifiConfiguration> configurations = wifiManager.getConfiguredNetworks();
                for (WifiConfiguration configuration : configurations) {
                    if (configuration.SSID.equals("\"" + ssid + "\"")) {
                        wifiManager.disconnect();
                        wifiManager.enableNetwork(configuration.networkId, true);
                        wifiManager.reconnect();
                        break;
                    }
                }
                break;
            }
        }
    }
}

2.在Unity中调用Java插件：

using UnityEngine;
using System.Runtime.InteropServices;

public class WifiManager : MonoBehaviour {

    private AndroidJavaObject wifiPlugin;

    void Start () {
        // Initialize Java plugin
        AndroidJavaClass javaClass = new AndroidJavaClass("com.unity3d.player.UnityPlayer");
        AndroidJavaObject activity = javaClass.GetStatic<AndroidJavaObject>("currentActivity");
        wifiPlugin = new AndroidJavaObject("com.example.wifiplugin.WifiPlugin", activity);
    }

    public void ConnectToWifi(string ssid, string password) {
        // Call Java method to connect to WiFi
        wifiPlugin.Call("connectToWifi", ssid, password);
    }
}

3.在Unity场景中添加一个UI输入框和按钮，用于输入WiFi的SSID和密码，并调用连接WiFi的方法：

using UnityEngine;
using UnityEngine.UI;

public class UIManager : MonoBehaviour {

    public InputField ssidInput;
    public InputField passwordInput;
    public WifiManager wifiManager;

    public void ConnectToWifi() {
        string ssid = ssidInput.text;
        string password = passwordInput.text;
        wifiManager.ConnectToWifi(ssid, password);
    }
}

这样就可以在Unity中获取并连接WiFi了。需要注意的是，为了访问WiFi相关的Android API，需要在Unity项目中添加Android权限：ACCESS_WIFI_STATE、CHANGE_WIFI_STATE、ACCESS_NETWORK_STATE、CHANGE_NETWORK_STATE、ACCESS_COARSE_LOCATION、ACCESS_FINE_LOCATION。