在Android中通过代码切换到指定 WiFi

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

代码

    /**
     *
     * @param context
     * @param ssid  带引号的ssid "\"wifi_name\""
     * @param password  wifi 密码
     * @param fuzzyMatch    是否模糊匹配ssid
     */
    private void changeWifi(Context context, String ssid, String password, boolean fuzzyMatch) {
        WifiManager wifiManager = getWifiManager(context);
        List<WifiConfiguration> list = wifiManager.getConfiguredNetworks();
        for (WifiConfiguration wifiConfiguration : list) {
            String wifiSSID = wifiConfiguration.SSID;
            boolean ssidMatch = fuzzyMatch ? wifiSSID.startsWith(ssid) : wifiSSID.equals(ssid);
            if (ssidMatch) {
                if (!TextUtils.isEmpty(password)) {
                    wifiConfiguration.preSharedKey = "\"" + password + "\"";
                }
                wifiManager.disconnect();
                wifiManager.enableNetwork(wifiConfiguration.networkId, true);
                wifiManager.reconnect();
                break;
            }
        }
    }

参考：
https://stackoverflow.com/questions/8818290/how-do-i-connect-to-a-specific-wi-fi-network-in-android-programmatically