Onscreen Keyboard in Qt 5

Question

I want to create a onscreen keyboard for a desktop application. The application will be built in Qt 5. I have couple of questions, please clarify them.

1. What

Answer 1

I just got this working in my awesome Qt app. Here is how I did it.

For Android and iOS:

QObject::connect(lineEdit, SIGNAL(returnPressed()), qApp->inputMethod(), SLOT(hide()));

For iOS:

Subclass QLineEdit and add the following:

void focusOutEvent(QFocusEvent * fe)
{
    QLineEdit::focusOutEvent(fe);
#ifdef Q_OS_IOS
    if(fe->reason() == Qt::OtherFocusReason)
    {
        // Done was pressed!
        emit returnPressed();
    }
#endif
}

Btw, the QInputMethod docs don't say much about how to access it from c++. You have to get an instance from QGuiApplication, like I did above.

Hope that helps.