Android Q，以编程方式连接不同的 WiFi AP 上网 [英] Android Q, programmatically connect to different WiFi AP for internet

问题描述

与 Android Q 一样，多个 WiFi API 受到限制.我正在尝试使用备用 API 连接到不同的 Wifi AP 以进行互联网连接.

As in Android Q, several WiFi APIs are restricted. I am trying to use alternate APIs to connect to different Wifi AP for internet.

下面是我的代码:

    WifiNetworkSpecifier.Builder builder = new WifiNetworkSpecifier.Builder();
    builder.setSsid("wifi-ap-ssid");
    builder.setWpa2Passphrase("wifi-ap-password");

    WifiNetworkSpecifier wifiNetworkSpecifier = builder.build();

    NetworkRequest.Builder networkRequestBuilder1 = new NetworkRequest.Builder();
    networkRequestBuilder1.addTransportType(NetworkCapabilities.TRANSPORT_WIFI);
    networkRequestBuilder1.setNetworkSpecifier(wifiNetworkSpecifier);

    NetworkRequest nr = networkRequestBuilder1.build();
    ConnectivityManager cm = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
    cm.requestNetwork(nr, callback);

这允许我连接但互联网被禁用.这是按照 Android 文档中的定义工作的.

This allows me to connect but Internet is disabled. This is working as defined in Android docs.

我尝试的替代方法如下:

Alternate way i tried is below :

    WifiNetworkSuggestion.Builder wifiNetworkSuggestionBuilder1 = new WifiNetworkSuggestion.Builder();
    wifiNetworkSuggestionBuilder1.setSsid("wifi-ap-ssid");
    wifiNetworkSuggestionBuilder1.setWpa2Passphrase("wifi-ap-password");
    WifiNetworkSuggestion wifiNetworkSuggestion = wifiNetworkSuggestionBuilder1.build();
    List<WifiNetworkSuggestion> list = new ArrayList<>();
    list.add(wifiNetworkSuggestion);
    wifiManager = (WifiManager) getApplicationContext().getSystemService(Context.WIFI_SERVICE);
    wifiManager.removeNetworkSuggestions(new ArrayList<WifiNetworkSuggestion>());
    wifiManager.addNetworkSuggestions(list);

在 Manifest 中声明的权限:

declared permission in Manifest :

<uses-permission android:name="android.permission.CHANGE_WIFI_STATE"/>

使用它并没有改变任何行为.

Using this didn't change anything in behavior.

请告知 API 序列以成功连接到具有互联网功能的不同 Wifi AP.

Please let know sequence of APIs to connect successfully to different Wifi AP with internet capability.

推荐答案

尝试在 onAvailable() 回调中调用 bindProcessToNetwork() 以重新获得网络连接，对我来说效果很好.

Try calling bindProcessToNetwork() in onAvailable() callback to regain network connectivity, it works fine for me.

连接到网络:

    WifiNetworkSpecifier.Builder builder = new WifiNetworkSpecifier.Builder();
    builder.setSsid("wifi-ap-ssid");
    builder.setWpa2Passphrase("wifi-ap-password");

    WifiNetworkSpecifier wifiNetworkSpecifier = builder.build();

    NetworkRequest.Builder networkRequestBuilder1 = new NetworkRequest.Builder();
    networkRequestBuilder1.addTransportType(NetworkCapabilities.TRANSPORT_WIFI);
    networkRequestBuilder1.setNetworkSpecifier(wifiNetworkSpecifier);

    NetworkRequest nr = networkRequestBuilder1.build();
    ConnectivityManager cm = (ConnectivityManager)
            context.getSystemService(Context.CONNECTIVITY_SERVICE);
    ConnectivityManager.NetworkCallback networkCallback = new 
        ConnectivityManager.NetworkCallback() {
        @Override
        public void onAvailable(Network network) {
            super.onAvailable(network);
            Log.d(TAG, "onAvailable:" + network);
            cm.bindProcessToNetwork(network);
        }
    });
    cm.requestNetwork(nr, networkCallback);

断开绑定网络:

cm.unregisterNetworkCallback(networkCallback);

这篇关于Android Q，以编程方式连接不同的 WiFi AP 上网的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！