start stop scanning in android app

[hrg]

Hi

How to start and stop scanning continuously in android devices ?.I found that In Nrf master control panel android app there is an option of performing scanning such that it can display the dynamic data that nrf51822 is advertising (settings->scanner->continuous scanning disabled). I couldnt find this function in the source code of nrftoolbox that nordic had provided . Am developing an app for nrf51822 such that ,it advertises dynamic data which should be display live in the app( for ex.displaying rssi value). So when will they provide the source code for master control panel ? Do anybody have the function for this ?

private void scanLeDevice(final boolean enable) {

    if (enable) {
        // Stops scanning after a pre-defined scan period.
        mHandler.postDelayed(new Runnable() {
            @Override
            public void run() {
                mScanning = false;
                mBluetoothAdapter.stopLeScan(mLeScanCallback);
                System.out.println("hello");
                invalidateOptionsMenu();
            }
        }, SCAN_PERIOD);
               mScanning = true;
        mBluetoothAdapter.startLeScan(mLeScanCallback);
    } else {
        mScanning = false;
        mBluetoothAdapter.stopLeScan(mLeScanCallback);
    }
    invalidateOptionsMenu();
}

Thankyou

[Hung Bui]

Hi Hrg,

Actually you can find the code that we limit the period of scanning in nRFToolbox at function startScan() in ScannerFragment.java file.

We used a timer and defined a period SCAN_DURATION to stop scanning.

The reason we do this is to avoid continuous scanning (that can draw lots of power of the phone) when the app is in background or when the customer forgot to stop scanning.

[hrg]

Mr Hung ,Yea You are right am using nexus 7 ! and now i tried with nexus 5 its working well :) !! but here is the problem -- i can see that app is scanning for new data packets ,but its not displaying or refresing the data in the app display ! i have posted the code above for scanning. So where i have to clear the devicelist and update with new values ? Thankyou