在Android Oreo 8.x中更改WiFi热点的SSID和密码

In my Android application I'm using the following code snippet:

在我的Android应用程序中，我使用以下代码片段：

@RequiresApi(api = Build.VERSION_CODES.O)
private void turnOnHotspot(){
    WifiManager manager = (WifiManager) getApplicationContext().getSystemService(Context.WIFI_SERVICE);

    manager.startLocalOnlyHotspot(new WifiManager.LocalOnlyHotspotCallback(){

        @Override
        public void onStarted(WifiManager.LocalOnlyHotspotReservation reservation) {
            super.onStarted(reservation);
            Log.d(TAG, "Wifi Hotspot is on now");
        }

        @Override
        public void onStopped() {
            super.onStopped();
            Log.d(TAG, "onStopped: ");
        }

        @Override
        public void onFailed(int reason) {
            super.onFailed(reason);
            Log.d(TAG, "onFailed: ");
        }
    },new Handler());
}

This piece of code creates a hotspot named something like "AndroidShare_1234". For a project of mine I need to be able to set a password and SSID to this hotspot, however I can't find a way to do this. I would like to create a hotspot with an SSID like MyHotspot and a custom password.

这段代码创建了一个名为“AndroidShare_1234”的热点。对于我的项目，我需要能够为此热点设置密码和SSID，但是我找不到这样做的方法。我想创建一个像MyHotspot这样的SSID和自定义密码的热点。

Note that the setWifiApEnabled is not supported anymore in Android O, this is how it's done in older versions of Android. However, I still need to programmatically make a wifi hotspot with a SSID and a password. I can't figure out how to do this. Thanks in advance!

请注意，Android O中不再支持setWifiApEnabled，这是在旧版Android中完成的。但是，我仍然需要以编程方式使用SSID和密码创建一个wifi热点。我无法弄清楚如何做到这一点。提前致谢！

For who cares...:

谁关心...：

For a school project I made a locker that unlocks whenever it can connect to a wireless network with certain cridentials, hence the need of setting a hotspot programmatically.

对于一个学校项目，我制作了一个储物柜，只要它可以连接到具有某些警告的无线网络，就可以解锁，因此需要以编程方式设置热点。

1 个解决方案

#1

I have only a partial solution to the problem. Hopefully, it will be sufficient for the application you are designing.

我只能部分解决这个问题。希望它对您正在设计的应用程序足够了。

The SSID and the password are hard-coded by the android system when you start the Hotspot. By looking over at the AOSP code, I see that the same hotspot can be shared by multiple applications. The configuration for this hotspot(class name is WifiConfiguration) is also shared with all the requesting applications. This configuration is passed back to the application in the callback onStarted(LocalOnlyHotspotReservation reservation). You can get the WifiConfiguration by calling reservation.getWifiConfiguration(). You will get all the information you need from the WifiConfiguration object. So you can read the Pre-Shared Key and the access point name. But I don't think you can change them


FYI, The relevant code that sets up the wifi configuration (including the hard-coded SSID and WPA2-PSK key) is done by the following piece of code

启动Hotspot时，android系统会对SSID和密码进行硬编码。通过查看AOSP代码，我发现多个应用程序可以共享相同的热点。此热点的配置（类名称为WifiConfiguration）也与所有请求的应用程序共享。此配置将在回调onStarted（LocalOnlyHotspotReservation预留）中传递回应用程序。您可以通过调用reservation.getWifiConfiguration（）来获取WifiConfiguration。您将从WifiConfiguration对象获得所需的所有信息。因此，您可以阅读预共享密钥和访问点名称。但我不认为你可以改变它们FYI，设置wifi配置的相关代码（包括硬编码的SSID和WPA2-PSK密钥）由以下代码完成

  /**
   * Generate a temporary WPA2 based configuration for use by the local only hotspot.
   * This config is not persisted and will not be stored by the WifiApConfigStore.
   */
   public static WifiConfiguration generateLocalOnlyHotspotConfig(Context context) {
       WifiConfiguration config = new WifiConfiguration();
       config.SSID = context.getResources().getString(
              R.string.wifi_localhotspot_configure_ssid_default) + "_"
                      + getRandomIntForDefaultSsid();
       config.allowedKeyManagement.set(KeyMgmt.WPA2_PSK);
       config.networkId = WifiConfiguration.LOCAL_ONLY_NETWORK_ID;
       String randomUUID = UUID.randomUUID().toString();
       // first 12 chars from xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx
       config.preSharedKey = randomUUID.substring(0, 8) + randomUUID.substring(9, 13);
       return config;
   }