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private void disconnectWifi() {
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) {
            wifiManager.removeNetworkSuggestions(new ArrayList<>());
        } else {
            wifiManager.disconnect();
            //删除原来保存的密码
            List<WifiConfiguration> configuredNetworks = wifiManager.getConfiguredNetworks();
            if (configuredNetworks != null && connectedSsid != null) {
                for (WifiConfiguration config : configuredNetworks) {
                    if (config.SSID != null && config.SSID.equals("\"" + connectedSsid + "\"")) {
                        wifiManager.removeNetwork(config.networkId);
                        wifiManager.saveConfiguration();  // 对于旧版系统需手动保存
                        break;
                    }
                }
            }
        }
        updateSkipButtonState(false);
        connectedSsid = null;
        sortWifiList();
        wifiAdapter.notifyDataSetChanged();
//        ListView wifiListView = findViewById(R.id.wifiListView);
        wifiListView.invalidateViews();
        Toast.makeText(this, "已断开 Wi-Fi 连接", Toast.LENGTH_SHORT).show();
    }

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