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  1. KDE Developer Platform
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  3. Kirigami

Explaining pages

Pages allow you to organize your application content

PreviousSetting up and getting startedNextLayouts, ListViews, and Cards

Last updated 8 months ago

In the previous tutorial, we managed to set up, build, and compile our first Kirigami application. With the basics in place, we can begin our journey towards creating a fully-featured application.

These tutorials will focus on creating an application that lets the user see how many days are left until an event of their choice.

We also recommend you check out the , which provides a number of useful UI examples.

In this section we'll be focusing on pages, one of the key structural elements of any Kirigami application.

Pages

Kirigami apps are typically organized in pages by using . Pages are the different "screens" of an app. You will want to have a page dedicated to specific aspects of your app's interaction, and to make things easier you can create different QML files for each page.

Pages are organized in a where they can be pushed and popped. On a phone only the top-most page is shown, whereas on a larger screen (desktop or tablet), if desired, multiple pages can be shown next to each other.

Note

When looking through QML API documentation, make sure to look into the functions and properties inherited by the API you are looking at as well.

Let's go back to the Main.qml file we created in our previous tutorial:

// Includes relevant modules used by the QML
import QtQuick
import QtQuick.Layouts
import QtQuick.Controls as Controls
import org.kde.kirigami as Kirigami

// Provides basic features needed for all kirigami applications
Kirigami.ApplicationWindow {
    // Unique identifier to reference this object
    id: root

    width: 400
    height: 300

    // Window title
    // i18nc() makes a string translatable
    // and provides additional context for the translators
    title: i18nc("@title:window", "Hello World")

    // Set the first page that will be loaded when the app opens
    // This can also be set to an id of a Kirigami.Page
    pageStack.initialPage: Kirigami.Page {
        Controls.Label {
            // Center label horizontally and vertically within parent object
            anchors.centerIn: parent
            text: i18n("Hello World!")
        }
    }
}
import QtQuick
import QtQuick.Layouts
import QtQuick.Controls as Controls
import org.kde.kirigami as Kirigami

Kirigami.ApplicationWindow {
    id: root

    width: 400
    height: 300

    title: i18nc("@title:window", "Day Kountdown")

    pageStack.initialPage: Kirigami.ScrollablePage {
        title: i18nc("@title", "Kountdown")
    }
}

Note

You could also choose to define your page within its own QML document. To do so, you'd create the new QML file, for example kirigami-tutorial/src/qml/StartPage.qml, add it to your kirigami-tutorial/src/CMakeLists.txt file, and set the window's first page to load it, like so:

pageStack.initialPage: Qt.resolvedUrl("StartPage.qml")

A inherits from a , and as such you can use the latter's properties as well.

We make our application start to our . All we have included in it is a label containing "Hello World", but we're going to spruce things up a little.

The idea behind our app is that we're going to be able to display a bunch of countdowns to the user. The problem with a normal is that it has a fixed vertical size, so instead we can use a , which already comes with its own built-in scrollbar.

Kirigami pages also feature neat titles placed within the toolbar, quickly indicating to the user which page they are on. All we need to do is to set a page title using the title property of . In this case, we used one of the i18nc() functions we explored in our previous tutorial to this end.

pageStack.initialPage sets the initial Page of the application's page stack, and converts the relative URL of the QML file into an absolute one.

There is further information about alternative page structures .

Kirigami.Page
Controls.Page
Kirigami.Page
Kirigami.Page
Kirigami.ScrollablePage
Kirigami.ScrollablePage
Qt.resolvedUrl
within our Kirigami documentation
Kirigami Gallery
Kirigami.Page
page stack
A single page on the phone
A single page on the phone