networking - 当 Internet 连接可用时，Blackberry 会收到通知。

Question

有什么方法可以知道网络是否在黑莓设备中连接。我有以下代码，但它一直在等待网络超时。

int rc = connection.getResponseCode();
if (rc != HttpConnection.HTTP_OK) {
 throw new IOException("HTTP response code: " + rc);
}

有没有其他办法。

Answer 1

The title of this question has a different meaning than the body of the question. Based on the title, you can be notified when the network starts by using the RadioStatusListener interface, which defines a networkStarted() function. You could then use the checks that coldice recommends to make sure that the current network supports data transfer.

RadioStatusListner JavaDocs

Answer 2

有几个 API 用于获取网络信息：

RadioInfo.isDataServiceOperational();
CoverageInfo.isOutOfCoverage();
WLANInfo.getWLANState();