Initial Commit

Heavy_QML_example.pro

+QT += quick
+CONFIG += c++11
+
+# The following define makes your compiler emit warnings if you use
+# any feature of Qt which as been marked deprecated (the exact warnings
+# depend on your compiler). Please consult the documentation of the
+# deprecated API in order to know how to port your code away from it.
+DEFINES += QT_DEPRECATED_WARNINGS
+
+# You can also make your code fail to compile if you use deprecated APIs.
+# In order to do so, uncomment the following line.
+# You can also select to disable deprecated APIs only up to a certain version of Qt.
+#DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000    # disables all the APIs deprecated before Qt 6.0.0
+
+SOURCES += \
+        main.cpp
+
+RESOURCES += qml.qrc
+
+# Additional import path used to resolve QML modules in Qt Creator's code model
+QML_IMPORT_PATH =
+
+# Additional import path used to resolve QML modules just for Qt Quick Designer
+QML_DESIGNER_IMPORT_PATH =
+
+# Default rules for deployment.
+qnx: target.path = /tmp/$${TARGET}/bin
+else: unix:!android: target.path = /opt/$${TARGET}/bin
+!isEmpty(target.path): INSTALLS += target

main.cpp

+#include <QGuiApplication>
+#include <QQmlApplicationEngine>
+
+int main(int argc, char *argv[])
+{
+    qputenv("QT_IM_MODULE", QByteArray("qtvirtualkeyboard"));
+
+    if (qEnvironmentVariableIsEmpty("QTGLESSTREAM_DISPLAY")) {
+        qputenv("QT_QPA_EGLFS_PHYSICAL_WIDTH", QByteArray("213"));
+        qputenv("QT_QPA_EGLFS_PHYSICAL_HEIGHT", QByteArray("120"));
+
+        QCoreApplication::setAttribute(Qt::AA_EnableHighDpiScaling);
+    }
+
+    QGuiApplication app(argc, argv);
+
+    QQmlApplicationEngine engine;
+    engine.load(QUrl(QStringLiteral("qrc:/main.qml")));
+    if (engine.rootObjects().isEmpty())
+        return -1;
+
+    return app.exec();
+}

main.qml

+import QtQuick 2.6
+import QtQuick.Window 2.2
+import QtQuick.Enterprise.VirtualKeyboard 2.0
+
+Window {
+    id: window
+    visible: true
+    width: 640
+    height: 480
+    title: qsTr("Hello World")
+
+    InputPanel {
+        id: inputPanel
+        z: 99
+        x: 0
+        y: window.height
+        width: window.width
+
+        states: State {
+            name: "visible"
+            when: inputPanel.active
+            PropertyChanges {
+                target: inputPanel
+                y: window.height - inputPanel.height
+            }
+        }
+        transitions: Transition {
+            from: ""
+            to: "visible"
+            reversible: true
+            ParallelAnimation {
+                NumberAnimation {
+                    properties: "y"
+                    duration: 250
+                    easing.type: Easing.InOutQuad
+                }
+            }
+        }
+    }
+}

qml.qrc

+<RCC>
+    <qresource prefix="/">
+        <file>main.qml</file>
+    </qresource>
+</RCC>