android bluetoothadapter.startLeScan，按UUID过滤 [英] android bluetoothadapter.startLeScan, filter by UUID

问题描述

我想用 startLeScan(UUID[] serviceUuids, LeScanCallback callback) 方法扫描 BLE 设备，现在我有一个 UUID，它是一个 16 位的值，例如，00000000-0000-1000-8000-00805F9B34FB.

I want to scan BLE device with the startLeScan(UUID[] serviceUuids, LeScanCallback callback) method, now I have a UUID, it's a 16-bits value, for example, 00000000-0000-1000-8000-00805F9B34FB.

如何在startLeScan方法中使用UUID，我是这样写的，

How can I use the UUID in startLeScan method, I write like this,

UUID[] uuid = new UUID[1]; uuid[0] = UUID.fromString("00000000-0000-1000-8000-00805F9B34FB");
mBluetoothAdapter.startLeScan(uuid, mLeScanCallback);

但最后我什么也扫描不了.我该如何解决这个问题.

But finally I can scan nothing. How can I resolve this problem.

推荐答案

我和你的方法一样，我在 AndroidManifest.xml 文件中添加了如下权限:

I used the same method as you，and i added permissions in AndroidManifest.xml file like below:

<uses-permission android:name="android.permission.BLUETOOTH" />
<uses-permission android:name="android.permission.BLUETOOTH_ADMIN" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />

希望能帮到你.

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