[Interest] [ Android ] QtActivity connect startActivityForResult to onActivityResult to callback C++ code?

Edward Sutton edward.sutton at subsite.com
Tue Jul 21 18:35:21 CEST 2015

I have an activity working that I use to send a firmware update file from Android to a Bluetooth device using Android’s support for Object Push File “com.android.bluetooth.opp.BluetoothOppLauncherActivity"

Can QtActivity receive a onActivityResult and connect it back to the C++ code somehow?  It does not allow me to override it.


protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    // Check which request we're responding to
    if (requestCode == PICK_CONTACT_REQUEST) {
        // Make sure the request was successful
        if (resultCode == RESULT_OK) {
            // The user picked a contact.
            // The Intent's data Uri identifies which contact was selected.

            // Do something with the contact here (bigger example below)

public class TsrActivity extends QtActivity


    private static TsrActivity m_instance;

    public TsrActivity()


        m_instance = this;


    /// Sends firmware file via OBEX OPP


    /// \remarks user must select matching "TK_0003" from intent screen


    /// \param[in] absolutePathToFile path to firmware files TK_11.tsu

    /// \param[in] address email body

    public static void sendFile(String absolutePathToFile, String address) {

            try {

                    System.out.println("dbg: sendFile");

                    System.out.println("dbg: absolutePathToFile:" + absolutePathToFile);

                    System.out.println("dbg: address:" + address);

                    String intentAction = android.content.Intent.ACTION_SEND;

                    final Intent intent = new Intent(intentAction);




                    Uri uriFile = Uri.fromFile(new File(absolutePathToFile));

                    intent.putExtra(Intent.EXTRA_STREAM, uriFile);

                    // title does not display on intent?

                    String title = "Update software";

                    m_instance.startActivity(Intent.createChooser(intent, title));

            } catch (Throwable t) {

                System.out.println("dbg: sendFile.exception");

                    Toast.makeText(m_instance, "Request failed clickbutton: " + t.toString(),





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