问题描述
你好，这听起来是一个愚蠢的question.But我无法找到任何答案，这一点，因此在这里发帖。
Hi this may sound as a stupid question.But I was unable to find any answers for this, thus posting here.
我建一个室内应用程序，它会不断扫描位于像一个商场或library.As我将在与Android手机在我手里商场一处不同位置的蓝牙适配器，我应该能够得到最近的加密狗其中我可以连接到（愚蠢的想法，但我想做些别的事情与此）。对于这一点，我应该能够为蓝牙设备的连续扫描。
I am building an indoor application which continuously scans the bluetooth dongles located at different locations in a place like a mall or library.As I move in the mall with android phone in my hand I should be able to get the nearest dongle which I can connect to(Stupid Idea but I want to do something else with this).For this I should be able to continuously scan for the bluetooth devices.
请能有人告诉我我该如何让Android定期扫描可用的蓝牙设备。
Please can someone tell me how do I make android scan the available Bluetooth devices periodically.
推荐答案
我想这是如此简单，但没有之前打我。这里是答案，
I guess this was so simple but didnt strike me before. Here is the answer,
private BluetoothAdapter mBtAdapter;
mBtAdapter.startDiscovery();
private final BroadcastReceiver mReceiver = new BroadcastReceiver()
{
@Override
public void onReceive(Context context, Intent intent)
{
String action = intent.getAction();
// When discovery finds a device
if (BluetoothDevice.ACTION_FOUND.equals(action))
{
//do something
}
else if (BluetoothAdapter.ACTION_DISCOVERY_FINISHED.equals(action))
{
Log.v(TAG,"Entered the Finished ");
mBtAdapter.startDiscovery();
}
因此，我们应该对 ACTION_DISCOVERY_FINISHED 重新开始发现，这将持续扫描设备每12秒。
Thus we should start discovery again on ACTION_DISCOVERY_FINISHED which will continuously scan for devices every 12 seconds.
这篇关于如何定期扫描在Android的蓝牙设备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！