/**
   * Gets the Wi-Fi enabled state.
   * @return One of {@link #WIFI_AP_STATE_DISABLED},
   *     {@link #WIFI_AP_STATE_DISABLING}, {@link #WIFI_AP_STATE_ENABLED},
   *     {@link #WIFI_AP_STATE_ENABLING}, {@link #WIFI_AP_STATE_FAILED}
   * @see #isWifiApEnabled()
   *
   * @hide Dont open yet
   */
  public int getWifiApState() {
    try {
      return mService.getWifiApEnabledState();
    } catch (RemoteException e) {
      return WIFI_AP_STATE_FAILED;
    }
  }

 public static boolean isWifiApOpen(Context context) {
    try {
      WifiManager manager = (WifiManager) context.getSystemService(Context.WIFI_SERVICE);
      //通过放射获取 getWifiApState()方法
      Method method = manager.getClass().getDeclaredMethod("getWifiApState");
      //调用getWifiApState() ，获取返回值
      int state = (int) method.invoke(manager);
      //通过放射获取 WIFI_AP的开启状态属性
      Field field = manager.getClass().getDeclaredField("WIFI_AP_STATE_ENABLED");
      //获取属性值
      int value = (int) field.get(manager);
      //判断是否开启
      if (state == value) {
        return true;
      } else {
        return false;
      }
    } catch (NoSuchMethodException e) {
      e.printStackTrace();
    } catch (IllegalAccessException e) {
      e.printStackTrace();
    } catch (InvocationTargetException e) {
      e.printStackTrace();
    } catch (NoSuchFieldException e) {
      e.printStackTrace();
    }
    return false;
  }

* @return One of {@link #WIFI_STATE_DISABLED},
   *     {@link #WIFI_STATE_DISABLING}, {@link #WIFI_STATE_ENABLED},
   *     {@link #WIFI_STATE_ENABLING}, {@link #WIFI_STATE_UNKNOWN}

  try {
            WifiManager manager = (WifiManager) this.getSystemService(Context.WIFI_SERVICE);
            //拿到getWifiApConfiguration()方法
            Method method = manager.getClass().getDeclaredMethod("getWifiApConfiguration");
            //调用getWifiApConfiguration()方法，获取到 热点的WifiConfiguration
            WifiConfiguration configuration = (WifiConfiguration) method.invoke(manager);
            ssid = configuration.SSID;
          } catch (NoSuchMethodException e) {
            e.printStackTrace();
          } catch (InvocationTargetException e) {
            e.printStackTrace();
          } catch (IllegalAccessException e) {
            e.printStackTrace();
          }