KFBv1/app/src/main/java/com/kfb/kfbv1/MyAcessPoint.java

package com.kfb.kfbv1;

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

import androidx.core.util.Preconditions;

import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;



public class MyAcessPoint {

    private static final int WIFI_AP_STATE_FAILED = 4;
    private WifiManager mWifiManager = null;
    private final String TAG = "Wifi Access Manager";
    private Method wifiControlMethod;
    private Method wifiApConfigurationMethod;
    private Method wifiApState;

    public MyAcessPoint(Context context) throws SecurityException, NoSuchMethodException {
        mWifiManager = (WifiManager)context.getSystemService(Context.WIFI_SERVICE);
        wifiControlMethod = mWifiManager.getClass().getMethod("setWifiApEnabled", WifiConfiguration.class, boolean.class);
        wifiApConfigurationMethod = mWifiManager.getClass().getMethod("getWifiApConfiguration", null);
        wifiApState = mWifiManager.getClass().getMethod("getWifiApState");
    }

    public boolean setWifiApState(WifiConfiguration config, boolean enabled) {
        try {
            if (enabled) {
                mWifiManager.setWifiEnabled(!enabled);
            }
            return (Boolean) wifiControlMethod.invoke(mWifiManager, config, enabled);
        } catch (Exception e) {
            Log.e(TAG, "", e);
            return false;
        }
    }

    public WifiConfiguration getWifiApConfiguration() {
        try {
            return (WifiConfiguration) wifiApConfigurationMethod.invoke(mWifiManager, null);
        } catch (Exception e) {
            return null;
        }
    }

    public int getWifiApState() {
        try {
            return (Integer) wifiApState.invoke(mWifiManager);
        } catch (Exception e) {
            Log.e(TAG, "", e);
            return WIFI_AP_STATE_FAILED;
        }
    }
}