熄屏扫描，并回调扫描结果

[stevenwsg]

有没有好的思路实现设备在熄屏的情况下， 能实现蓝牙扫描并且将结果回调

看了一些博客说是改扫描模式，好像是有效果，但效果有限

     int scanMode;
     
        if (!ScreenLightUtil.isScreenLight(
                ViotSDK.getInstance().getBaseContext())) {
            scanMode = ScanSettings.SCAN_MODE_LOW_POWER;
        } else {
            scanMode = ScanSettings.SCAN_MODE_BALANCED;
        }

        ScanSettings settings = new ScanSettings.Builder()
                .setScanMode(scanMode)
                .build();
        scanner.startScan(null, settings, scanCallback);`