**Course Title:** QML Application Development **Section Title:** Introduction to QML and Qt Quick **Topic:** Creating your first QML application.(Lab topic) **Objective:** In this lab, you will learn how to create your first QML application using Qt Quick. By the end of this topic, you will be able to: * Create a new QML project in Qt Creator * Design a simple user interface using QML * Use Qt Quick's visual editor to create and layout UI components * Run and test your application **Step 1: Creating a new QML project in Qt Creator** To create a new QML project in Qt Creator, follow these steps: 1. Launch Qt Creator. 2. Click on "File" > "New File or Project" > "Applications" > "Qt Quick Application". 3. Choose "Next" and select the Qt version and Kit that you want to use. 4. Choose "Next" and select the project location and name. 5. Click on "Finish" to create the new project. **Step 2: Designing the User Interface** In this step, you will design a simple user interface using QML. Open the `main.qml` file in the Qt Quick editor. ```qml import QtQuick 2.15 import QtQuick.Window 2.15 Window { visible: true width: 640 height: 480 title: "My First QML Application" Rectangle { anchors.centerIn: parent width: 200 height: 100 color: "lightblue" border.color: "black" border.width: 2 Text { anchors.centerIn: parent text: "Hello, World!" font.pixelSize: 24 } } } ``` This QML code creates a window with a rectangle and a text label. The rectangle is centered in the window and has a light blue background with a black border. The text label is centered in the rectangle and displays the text "Hello, World!". **Step 3: Using Qt Quick's Visual Editor** Qt Quick provides a visual editor that allows you to create and layout UI components graphically. To open the visual editor, click on the "Design" button in the top left corner of the Qt Creator window. In the visual editor, you can drag and drop UI components from the "Library" panel onto the "Form Editor" panel. You can also adjust the layout and properties of the components using the "Property Editor" panel. **Step 4: Running and Testing the Application** To run the application, click on the "Run" button in the top left corner of the Qt Creator window or press F5. The application will be launched and you can test its functionality. **Key Concepts:** * QML projects in Qt Creator * Qt Quick visual editor * QML components (Rectangle, Text) * Layout and anchoring in QML **Practical Takeaways:** * Create new QML projects in Qt Creator * Design simple user interfaces using QML * Use Qt Quick's visual editor to create and layout UI components * Run and test QML applications **External Resources:** * [Qt Creator Manual](https://doc.qt.io/qtcreator/) * [Qt Quick QML Documentation](https://doc.qt.io/qt-5/qtquick-qml.html) **Leave a comment or ask for help:** If you have any questions or need help with this lab, leave a comment below. We will respond to your queries and provide assistance. In the next topic, we will cover the basics of QML components, including Rectangle, Text, and Image. We will also explore the properties and attributes of these components and how to use them in QML applications. **What's Next:** [Introduction to QML components: Rectangle, Text, Image, etc.](//) (From: QML Basics: Components and Properties) This topic will cover the basic QML components, including Rectangle, Text, and Image. You will learn about the properties and attributes of these components and how to use them in QML applications.