For passing data from Java to C++, you may declare a native method in Java and register via JNI in C++ side.
Example : Declare native method qtandroidexamplecode/QtRunner.java at master · benlau/qtandroidexamplecode <https://github.com/benlau/qtandroidexamplecode/blob/master/qtandroidrunner/android/src/com/github/qt/QtRunner.java#L36> Registration: qtandroidexamplecode/qtandroidrunner.cpp at master · benlau/qtandroidexamplecode <https://github.com/benlau/qtandroidexamplecode/blob/master/qtandroidrunner/qtandroidrunner.cpp#L23> That is the standard way. However, in case you have problem in coding with JNI, you may also consider an alternative method with using 3rd party library: Communication between C++ and Java without using JNI | Qt Forum <http://forum.qt.io/topic/56510/communication-between-c-and-java-without-using-jni> On 22 July 2015 at 00:35, Edward Sutton <[email protected]> wrote: > 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. > > http://developer.android.com/training/basics/intents/result.html > > @Override > 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); > > intent.setType("application/x-tar"); > > intent.setClassName("com.android.bluetooth", > > > "com.android.bluetooth.opp.BluetoothOppLauncherActivity"); > > > 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(), > > Toast.LENGTH_LONG).show(); > > } > > } > > > > -Ed > > > > > This email and any files transmitted with it from The Charles Machine > Works, Inc. are confidential and intended solely for the use of the > individual or entity to which they are addressed. If you have received this > email in error please notify the sender. Our company accepts no liability > for the contents of this email, or for the consequences of any actions > taken on the basis of the information provided, unless that information is > subsequently confirmed in writing. Please note that any views or opinions > presented in this email are solely those of the author and do not > necessarily represent those of the company. Finally, the recipient should > check this email and any attachments for the presence of viruses. The > company accepts no liability for any damage caused by any virus transmitted > by this email. > > _______________________________________________ > Interest mailing list > [email protected] > http://lists.qt-project.org/mailman/listinfo/interest > >
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