使用 scanfilter 的 Android 蓝牙低功耗扫描问题

Question

当我尝试在 Lollipop 的 BleScan 中使用 ScanFilter 时，它不扫描设备(仅当我通过 ScanFilter 列表时)。如果我只传递一个 UUID，它工作正常。但在 Multiple 的情况下它不起作用..

 ScanSettings settings = new ScanSettings.Builder().setScanMode(ScanSettings.SCAN_MODE_BALANCED).build();
        if (getBluetoothStatus()) {
            mBluetoothLeScanner = mBluetoothAdapter.getBluetoothLeScanner();
            List<ScanFilter> mList=scanFilters(serviceUUIDs);
            mBluetoothLeScanner.startScan(mList, settings, mScanCallback);

        }



     private List<ScanFilter> scanFilters(UUID[] serviceUUIDs) {
                List<ScanFilter> list = new ArrayList<>();
                for (int i = 0; i <serviceUUIDs.length; i++) {
                ScanFilter filter = new ScanFilter.Builder().setServiceUuid(ParcelUuid.fromString(serviceUUIDs[0].toString())).build();

                    list.add(filter);
                }

          return list;
            }

Answer 1

那是因为您没有使用变量来遍历元素。

试试这个:

ScanFilter filter = new ScanFilter.Builder().setServiceUuid(ParcelUuid.fromString(serviceUUIDs[i].toStri‌​ng())).build();