Callstack of first mousePressEvent: 0 myScene::mousePressEvent myscene.cpp 12 0x75a580d4 1 QGraphicsScene::event(QEvent*) /home/student/Qt/5.2.1/android_armv7/lib/libQt5Widgets.so 0x758fdcdc 2 QApplicationPrivate::notify_helper(QObject*, QEvent*) /home/student/Qt/5.2.1/android_armv7/lib/libQt5Widgets.so 0x757b19c0 3 QApplication::notify(QObject*, QEvent*) /home/student/Qt/5.2.1/android_armv7/lib/libQt5Widgets.so 0x757b4d2e 4 QCoreApplication::notifyInternal(QObject*, QEvent*) /home/student/Qt/5.2.1/android_armv7/lib/libQt5Core.so 0x752f5022 5 QGraphicsView::mousePressEvent(QMouseEvent*) /home/student/Qt/5.2.1/android_armv7/lib/libQt5Widgets.so 0x759072e2 6 QWidget::event(QEvent*) /home/student/Qt/5.2.1/android_armv7/lib/libQt5Widgets.so 0x757cde30 7 QFrame::event(QEvent*) /home/student/Qt/5.2.1/android_armv7/lib/libQt5Widgets.so 0x7583426c 8 QGraphicsView::viewportEvent(QEvent*) /home/student/Qt/5.2.1/android_armv7/lib/libQt5Widgets.so 0x75907dd2 9 QAbstractScrollAreaFilter::eventFilter(QObject*, QEvent*) /home/student/Qt/5.2.1/android_armv7/lib/libQt5Widgets.so 0x7586b8a6 10 QCoreApplicationPrivate::sendThroughObjectEventFilters(QObject*, QEvent*) /home/student/Qt/5.2.1/android_armv7/lib/libQt5Core.so 0x752f51ac 11 QApplicationPrivate::notify_helper(QObject*, QEvent*) /home/student/Qt/5.2.1/android_armv7/lib/libQt5Widgets.so 0x757b19b0 12 QApplication::notify(QObject*, QEvent*) /home/student/Qt/5.2.1/android_armv7/lib/libQt5Widgets.so 0x757b443e 13 QCoreApplication::notifyInternal(QObject*, QEvent*) /home/student/Qt/5.2.1/android_armv7/lib/libQt5Core.so 0x752f5022 14 QApplicationPrivate::translateTouchToMouse(QWidget*, QTouchEvent*) /home/student/Qt/5.2.1/android_armv7/lib/libQt5Widgets.so 0x757b3f24 15 QApplication::notify(QObject*, QEvent*) /home/student/Qt/5.2.1/android_armv7/lib/libQt5Widgets.so 0x757b4ac4 16 QCoreApplication::notifyInternal(QObject*, QEvent*) /home/student/Qt/5.2.1/android_armv7/lib/libQt5Core.so 0x752f5022 17 QApplicationPrivate::translateRawTouchEvent(QWidget*, QTouchDevice*, QList const&, unsigned long) /home/student/Qt/5.2.1/android_armv7/lib/libQt5Widgets.so 0x757b54d8 18 QWidgetWindow::handleTouchEvent(QTouchEvent*) /home/student/Qt/5.2.1/android_armv7/lib/libQt5Widgets.so 0x757d867c 19 QWidgetWindow::event(QEvent*) /home/student/Qt/5.2.1/android_armv7/lib/libQt5Widgets.so 0x757d99cc 20 QApplicationPrivate::notify_helper(QObject*, QEvent*) /home/student/Qt/5.2.1/android_armv7/lib/libQt5Widgets.so 0x757b19c0 21 QApplication::notify(QObject*, QEvent*) /home/student/Qt/5.2.1/android_armv7/lib/libQt5Widgets.so 0x757b4d2e 22 QCoreApplication::notifyInternal(QObject*, QEvent*) /home/student/Qt/5.2.1/android_armv7/lib/libQt5Core.so 0x752f5022 23 QGuiApplicationPrivate::processTouchEvent(QWindowSystemInterfacePrivate::TouchEvent*) /home/student/Qt/5.2.1/android_armv7/lib/libQt5Gui.so 0x755711f0 24 QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*) /home/student/Qt/5.2.1/android_armv7/lib/libQt5Gui.so 0x75572164 25 QWindowSystemInterface::sendWindowSystemEvents(QFlags) /home/student/Qt/5.2.1/android_armv7/lib/libQt5Gui.so 0x75567ef8 26 QUnixEventDispatcherQPA::processEvents(QFlags) /home/student/Qt/5.2.1/android_armv7/plugins/platforms/android/libqtforandroid.so 0x75a35174 27 QEventLoop::processEvents(QFlags) /home/student/Qt/5.2.1/android_armv7/lib/libQt5Core.so 0x752f4698 28 QEventLoop::exec(QFlags) /home/student/Qt/5.2.1/android_armv7/lib/libQt5Core.so 0x752f4b16 29 QCoreApplication::exec() /home/student/Qt/5.2.1/android_armv7/lib/libQt5Core.so 0x752f75ca 30 main main.cpp 10 0x75a57090 31 startMainMethod(void*) /home/student/Qt/5.2.1/android_armv7/plugins/platforms/android/libqtforandroid.so 0x75a00752 32 __thread_entry /home/student/qt_examples/build-double_event_bug_report-Android_for_armeabi_v7a_GCC_4_8_Qt_5_2_1-Debug/libc.so 0x400f91c4 33 pthread_create /home/student/qt_examples/build-double_event_bug_report-Android_for_armeabi_v7a_GCC_4_8_Qt_5_2_1-Debug/libc.so 0x400f935c 34 ?? Callstack of second mousePressEvent: 0 myScene::mousePressEvent myscene.cpp 12 0x75a580d4 1 QGraphicsScene::event(QEvent*) /home/student/Qt/5.2.1/android_armv7/lib/libQt5Widgets.so 0x758fdcdc 2 QApplicationPrivate::notify_helper(QObject*, QEvent*) /home/student/Qt/5.2.1/android_armv7/lib/libQt5Widgets.so 0x757b19c0 3 QApplication::notify(QObject*, QEvent*) /home/student/Qt/5.2.1/android_armv7/lib/libQt5Widgets.so 0x757b4d2e 4 QCoreApplication::notifyInternal(QObject*, QEvent*) /home/student/Qt/5.2.1/android_armv7/lib/libQt5Core.so 0x752f5022 5 QGraphicsView::mousePressEvent(QMouseEvent*) /home/student/Qt/5.2.1/android_armv7/lib/libQt5Widgets.so 0x759072e2 6 QWidget::event(QEvent*) /home/student/Qt/5.2.1/android_armv7/lib/libQt5Widgets.so 0x757cde30 7 QFrame::event(QEvent*) /home/student/Qt/5.2.1/android_armv7/lib/libQt5Widgets.so 0x7583426c 8 QGraphicsView::viewportEvent(QEvent*) /home/student/Qt/5.2.1/android_armv7/lib/libQt5Widgets.so 0x75907dd2 9 QAbstractScrollAreaFilter::eventFilter(QObject*, QEvent*) /home/student/Qt/5.2.1/android_armv7/lib/libQt5Widgets.so 0x7586b8a6 10 QCoreApplicationPrivate::sendThroughObjectEventFilters(QObject*, QEvent*) /home/student/Qt/5.2.1/android_armv7/lib/libQt5Core.so 0x752f51ac 11 QApplicationPrivate::notify_helper(QObject*, QEvent*) /home/student/Qt/5.2.1/android_armv7/lib/libQt5Widgets.so 0x757b19b0 12 QApplication::notify(QObject*, QEvent*) /home/student/Qt/5.2.1/android_armv7/lib/libQt5Widgets.so 0x757b443e 13 QCoreApplication::notifyInternal(QObject*, QEvent*) /home/student/Qt/5.2.1/android_armv7/lib/libQt5Core.so 0x752f5022 14 QApplicationPrivate::sendMouseEvent(QWidget*, QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer&, bool) /home/student/Qt/5.2.1/android_armv7/lib/libQt5Widgets.so 0x757b38e8 15 QWidgetWindow::handleMouseEvent(QMouseEvent*) /home/student/Qt/5.2.1/android_armv7/lib/libQt5Widgets.so 0x757d91de 16 QWidgetWindow::event(QEvent*) /home/student/Qt/5.2.1/android_armv7/lib/libQt5Widgets.so 0x757d9866 17 QApplicationPrivate::notify_helper(QObject*, QEvent*) /home/student/Qt/5.2.1/android_armv7/lib/libQt5Widgets.so 0x757b19c0 18 QApplication::notify(QObject*, QEvent*) /home/student/Qt/5.2.1/android_armv7/lib/libQt5Widgets.so 0x757b4d2e 19 QCoreApplication::notifyInternal(QObject*, QEvent*) /home/student/Qt/5.2.1/android_armv7/lib/libQt5Core.so 0x752f5022 20 QGuiApplicationPrivate::processMouseEvent(QWindowSystemInterfacePrivate::MouseEvent*) /home/student/Qt/5.2.1/android_armv7/lib/libQt5Gui.so 0x75571704 21 QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*) /home/student/Qt/5.2.1/android_armv7/lib/libQt5Gui.so 0x7557219a 22 QWindowSystemInterface::sendWindowSystemEvents(QFlags) /home/student/Qt/5.2.1/android_armv7/lib/libQt5Gui.so 0x75567ef8 23 QUnixEventDispatcherQPA::processEvents(QFlags) /home/student/Qt/5.2.1/android_armv7/plugins/platforms/android/libqtforandroid.so 0x75a35174 24 QEventLoop::processEvents(QFlags) /home/student/Qt/5.2.1/android_armv7/lib/libQt5Core.so 0x752f4698 25 QEventLoop::exec(QFlags) /home/student/Qt/5.2.1/android_armv7/lib/libQt5Core.so 0x752f4b16 26 QCoreApplication::exec() /home/student/Qt/5.2.1/android_armv7/lib/libQt5Core.so 0x752f75ca 27 main main.cpp 10 0x75a57090 28 startMainMethod(void*) /home/student/Qt/5.2.1/android_armv7/plugins/platforms/android/libqtforandroid.so 0x75a00752 29 __thread_entry /home/student/qt_examples/build-double_event_bug_report-Android_for_armeabi_v7a_GCC_4_8_Qt_5_2_1-Debug/libc.so 0x400f91c4 30 pthread_create /home/student/qt_examples/build-double_event_bug_report-Android_for_armeabi_v7a_GCC_4_8_Qt_5_2_1-Debug/libc.so 0x400f935c 31 ??