networking - 在 BlackBerry 上扫描可用的 Wi-Fi 网络

Question

有没有RIM可用的 API 将有助于获取设备的可用网络服务列表或仅 Wi-Fi 网络列表，并为任何网络通信设置选定的网络接入点？

我的应用程序是否可以禁用 GPRS、WAP 等移动网络？

例子:
当应用程序启动时，它应该扫描 Wi-Fi 连接，即使设备上没有设置以前的 Wi-Fi 网络接入点，并列出可用的 Wi-Fi 连接。然后用户将选择合适的 Wi-Fi 连接来连接任何网络通信。在应用程序之外，任何 Internet 通信(如浏览器或任何其他应用程序)都应通过相同的选定 Wi-Fi 连接完成。扫描 Wi-Fi 和设置连接与 BlackBerry Wi-Fi 设置几乎相似。

我希望为 BlackBerry OS 4.5、4.7 和 5.0 执行此操作。

更新

问题是我正在通过应用程序寻找 Wi-Fi 扫描。这就像通过该应用程序，我能够扫描可用的 Wi-Fi 接入点或热点，并通过将其选择到设备来设置接入点之一，然后连接到它进行通信。

基本上就像，我们如何在BlackBerry 的“管理连接”中设置Wi-Fi 连接？我必须通过应用程序做类似的事情。

从一些BlackBerry论坛我了解到OS v5.0中有一个包，即一个net.rim.device.api.wlan.hotspot包来获取Wi-Fi热点.但是经过长时间的搜索，我没有找到任何示例或太多解释。因为我试图通过查看其 API 文档来实现，但我没有成功。

如果您对此有任何想法或任何示例代码，那将非常有帮助。

Answer 1

好吧，要扫描应用程序的所有可用网络，您可以使用 NetworkDiagnostic tool来自 RIM。

可以在 How to reliably establish a network connection on any BlackBerry device 中找到用于扫描手机连接并获得最佳连接字符串的另一段代码。 ,

/**
 * Determines what connection type to use and returns the necessary string to use it.
 * @return A string with the connection info
 */
private static String getConnectionString()
{
    // This code is based on the connection code developed by Mike Nelson of AccelGolf.
    // http://blog.accelgolf.com/2009/05/22/blackberry-cross-carrier-and-cross-network-http-connection
    String connectionString = null;

    // Simulator behavior is controlled by the USE_MDS_IN_SIMULATOR variable.
    if (DeviceInfo.isSimulator())
    {
            if (UploaderThread.USE_MDS_IN_SIMULATOR)
            {
                    logMessage("Device is a simulator and USE_MDS_IN_SIMULATOR is true");
                    connectionString = ";deviceside=false";
            }
            else
            {
                    logMessage("Device is a simulator and USE_MDS_IN_SIMULATOR is false");
                    connectionString = ";deviceside=true";
            }
    }

    // Wi-Fi is the preferred transmission method.
    else if (WLANInfo.getWLANState() == WLANInfo.WLAN_STATE_CONNECTED)
    {
        logMessage("Device is connected via Wifi.");
        connectionString = ";interface=wifi";
    }

    // Is the carrier network the only way to connect?
    else if ((CoverageInfo.getCoverageStatus() & CoverageInfo.COVERAGE_DIRECT) == CoverageInfo.COVERAGE_DIRECT)
    {
        logMessage("Carrier coverage.");

        String carrierUid = getCarrierBIBSUid();
        if (carrierUid == null)
        {
            // Has carrier coverage, but not BIBS.  So use the carrier's TCP network
            logMessage("No Uid");
            connectionString = ";deviceside=true";
        }
        else
        {
            // otherwise, use the Uid to construct a valid carrier BIBS request
            logMessage("uid is: " + carrierUid);
            connectionString = ";deviceside=false;connectionUID="+carrierUid + ";ConnectionType=mds-public";
        }
    }

    // Check for an MDS connection instead (BlackBerry Enterprise Server).
    else if ((CoverageInfo.getCoverageStatus() & CoverageInfo.COVERAGE_MDS) == CoverageInfo.COVERAGE_MDS)
    {
        logMessage("MDS coverage found");
        connectionString = ";deviceside=false";
    }

    // If there is no connection available abort to avoid bugging the user unnecssarily.
    else if (CoverageInfo.getCoverageStatus() == CoverageInfo.COVERAGE_NONE)
    {
        logMessage("There is no available connection.");
    }

    // In theory, all bases are covered so this shouldn't be reachable.
    else
    {
        logMessage("no other options found, assuming device.");
        connectionString = ";deviceside=true";
    }

    return connectionString;
}

/**
 * Looks through the phone's service book for a carrier provided BIBS network
 * @return The uid used to connect to that network.
 */
private static String getCarrierBIBSUid()
{
    ServiceRecord[] records = ServiceBook.getSB().getRecords();
    int currentRecord;

    for (currentRecord = 0; currentRecord < records.length; currentRecord++)
    {
        if (records[currentRecord].getCid().toLowerCase().equals("ippp"))
        {
            if (records[currentRecord].getName().toLowerCase().indexOf("bibs") >= 0)
            {
                return records[currentRecord].getUid();
            }
        }
    }
    return null;
}