BluetoothLeScanner.startScan方法代码示例实现蓝牙扫描
时间: 2023-12-06 18:02:13 浏览: 52
好的,以下是BluetoothLeScanner.startScan方法代码示例实现蓝牙扫描:
```java
// 获取蓝牙适配器
BluetoothAdapter bluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
if (bluetoothAdapter == null) {
// 设备不支持蓝牙
return;
}
// 获取蓝牙低功耗扫描器
BluetoothLeScanner bluetoothLeScanner = bluetoothAdapter.getBluetoothLeScanner();
if (bluetoothLeScanner == null) {
// 设备不支持蓝牙低功耗
return;
}
// 定义扫描过滤器,只扫描符合 UUID 的设备
List<ScanFilter> scanFilters = new ArrayList<>();
ScanFilter scanFilter = new ScanFilter.Builder()
.setServiceUuid(ParcelUuid.fromString("0000180d-0000-1000-8000-00805f9b34fb")) // 服务 UUID
.build();
scanFilters.add(scanFilter);
// 定义扫描设置,设置扫描模式和回调
ScanSettings scanSettings = new ScanSettings.Builder()
.setScanMode(ScanSettings.SCAN_MODE_LOW_LATENCY) // 低延迟模式
.build();
// 开始扫描
bluetoothLeScanner.startScan(scanFilters, scanSettings, new ScanCallback() {
@Override
public void onScanResult(int callbackType, ScanResult result) {
// 扫描到设备的回调
BluetoothDevice device = result.getDevice();
String name = device.getName();
String address = device.getAddress();
int rssi = result.getRssi();
// 处理扫描结果
Log.d(TAG, "扫描到设备:name=" + name + ", address=" + address + ", rssi=" + rssi);
}
@Override
public void onScanFailed(int errorCode) {
// 扫描失败的回调
Log.e(TAG, "扫描失败,errorCode=" + errorCode);
}
});
// 停止扫描
bluetoothLeScanner.stopScan(new ScanCallback() {});
```
希望能够帮到你。