Stackview title change with each pages

filipdns

Hello, I'm trying to use stackview for my project but I would like to have the title change when the page is switching, to you know how I can do that?

Then you very much for your help

joeQ

@filipdns Hi, friend. Welcome.

I didn't find title attribute in StackView. If you has the titlein StackView or you add one object as title.

You can use the currentItemChanged signal, like:

    StackView {
        id: id_stack

        anchors.fill: parent
        initialItem: id_sViewItem
        onCurrentItemChanged: {
            console.log("item Changed :" + id_stack.depth); /// at here,you can update view title
        }
    }

GTDev

Hi!

You can also have a look at V-Play Engine for qt-based mobile apps and games.

The NavigationStack stack type already contains a NavigationBar, which automatically displays the Page::title and other configured navigationbar-items for the page.

The NavigationStack also provides with native UI and page transitions for both iOS and Android:

import VPlayApps 1.0

App {
  NavigationStack {
    id: navigationStack

    Page {
      title: "First Page"
      AppButton {
        text: "Push Second"
        onClicked: navigationStack.push(secondPage)
      }
    }
  }

  Component {
    id: secondPage
    Page { title: "Second Page" }
  }
}

Hope this helps!

Best,
GTDev

filipdns

Thank you very much!! I will test that today and will give feedback here ;-)

filipdns

@joeQ Hello Joe, thank you very much for your solution, it's look much better than v-play but could you explain me how can I implement your solution in my code?

//import QtQuick 2.7
import QtQuick.Controls 1.2
import QtQuick.Controls.Styles 1.3
import QtQuick.Window 2.2

import "content"


ApplicationWindow {
    id: mainWindow
    visible: true   // this is mandatory
    visibility: Window.Maximized
    style: ApplicationWindowStyle {
            background: Rectangle {
               gradient: Gradient {
                    GradientStop { position: 0.0; color: "green" }
                    GradientStop { position: 0.5; color: "white" }
                    GradientStop { position: 1.0; color: "green" }
                }
            }
       }
    
   StackView {
        id: stackView
        anchors.fill: parent
        // Implements back key navigation
        focus: true
        Keys.onReleased: if (event.key === Qt.Key_Back && stackView.depth > 1) {
                             stackView.pop();
                             event.accepted = true;
                         }

        initialItem: Item {
            width: parent.width
            ListView {
                anchors.topMargin: 0
                model: pageModel
                anchors.fill: parent
                delegate: Fgaln {
                    text: title
                    onClicked: stackView.push(Qt.resolvedUrl(page))
                }
            }
            ListView {
                anchors.topMargin: 100
                model: pageModel1
                anchors.fill: parent
                delegate: Fgalp {
                    text: title
                    onClicked: stackView.push(Qt.resolvedUrl(page))
                }
            }
        }
    }

    toolBar: BorderImage {


        border.bottom: 9
        source: "images/toolbar.png"
        width: parent.width
        height: 100
        visible: true

        Rectangle {
            id: backButton
            width: opacity ? 60 : 0
            anchors.left: parent.left
            anchors.leftMargin: 20
            opacity: stackView.depth > 1 ? 1 : 0
            anchors.verticalCenter: parent.verticalCenter
            antialiasing: true
            height: 60
            radius: 4
            color: backmouse.pressed ? "#222" : "transparent"
            Behavior on opacity { NumberAnimation{} }
            Image {
                anchors.verticalCenter: parent.verticalCenter
                source: "images/navigation_previous_item.png"
            }
            MouseArea {
                id: backmouse
                anchors.fill: parent
                anchors.margins: -10
                onClicked: stackView.pop()
            }
        }

        Text {
            font.pixelSize: 42
            Behavior on x { NumberAnimation{ easing.type: Easing.OutCubic} }
            x: backButton.x + backButton.width + 20
            anchors.verticalCenter: parent.verticalCenter
            color: "lightgrey"
            text: "Kardex"
            font.italic: true
            font.family: "Calibri"
            font.bold: true
        }

        ListModel {
            id: pageModel
            ListElement {
                title: "F-GALN"
                page: "content/ataLN.qml"
            }
         }
        ListModel {
            id: pageModel1
            ListElement {
                title: "F-GALP"
                page: "content/ataLP.qml"
            }
         }
    }
}

``
Thank very much for your help!

joeQ

@filipdns hi,

From your snippet:

ListView {
                anchors.topMargin: 0
                model: pageModel
                anchors.fill: parent
                delegate: Fgaln {
                    text: title // this title is from model, does it wok?
                    onClicked: stackView.push(Qt.resolvedUrl(page))
                }
            }

and which title you want to change in you code when stackView push or pop ? is it Fgaln::text ?

filipdns

@joeQ yes, I have to have 4 listview in the sent code I put only 2 for test and I would like to have the title change from "Kardex" to "Kardex FGALN" or "Kardex FGALP" following the listview selected
Thank you ;-)

filipdns

Solved,
page1.qml

/****************************************************************************
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** Contact: https://www.qt.io/licensing/
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** accordance with the commercial license agreement provided with the
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** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
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** Alternatively, you may use this file under the terms of the BSD license
** as follows:
**
** "Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions are
** met:
**   * Redistributions of source code must retain the above copyright
**     notice, this list of conditions and the following disclaimer.
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****************************************************************************/

import QtQuick 2.6
import QtQuick.Controls 2.1


Page {
    id: root

    header: ToolBar {
        Label {
            text: qsTr("KARDEX")
            font.pixelSize: 50
            color: "lightgrey"
            anchors.centerIn: parent
            font.family: "Times New Roman"
            font.bold: true
            font.italic: true
        }
        background: Rectangle {
            gradient: Gradient {
                GradientStop { position: 0 ; color: "black" }
                GradientStop { position: 1 ; color: "green" }
            }
         }
    }

    ListView {
        id: listView
        anchors.fill: parent
        topMargin: 48
        leftMargin: 48
        bottomMargin: 48
        rightMargin: 48
        spacing: 20
        model: ["LNx4", "LPx4", "GBx4","LTx4"]
        delegate: ItemDelegate {
            width: avatar.implicitWidth
            height: avatar.implicitHeight
            leftPadding: avatar.implicitWidth + 32
            onClicked: root.StackView.view.push("qrc:/Page2.qml", { inConversationWith: modelData })

            Image {
                id: avatar
                source: "qrc:/images/" + modelData.replace(" ", "_") + ".png"
            }
        }
    }
}

Page2.qml

import QtQuick 2.6
import QtQuick.Layouts 1.3
import QtQuick.Controls 2.1
import QtQuick.Controls.Styles 1.1
import QtQuick.Extras 1.4
import QtQuick.Controls 1.2


Page {
    id: root
    background: Rectangle {
            color: "black"
        }
    property string inConversationWith

    header: ToolBar {
        width: parent.width
            height: 60
        style: ToolBarStyle {
                padding {
                    left: 8
                    right: 8
                    top: 3
                    bottom: 3
                }
                background: Rectangle {
                    gradient: Gradient {
                        GradientStop { position: 0 ; color: "black" }
                        GradientStop { position: 1 ; color: "green" }
                    }
                }
            }

        Rectangle {
                id: backButton
                width: opacity ? 60 : 0
                anchors.left: parent.left
                anchors.leftMargin: 20
                opacity: stackView.depth > 1 ? 1 : 0
                anchors.verticalCenter: parent.verticalCenter
                antialiasing: true
                height: 40
                radius: 4
                color: backmouse.pressed ? "darkgreen" : "transparent"
                Behavior on opacity { NumberAnimation{} }
                Image {
                    anchors.verticalCenter: parent.verticalCenter
                    source: "images/navigation_previous_item.png"
                }
                MouseArea {
                    id: backmouse
                    anchors.fill: parent
                    anchors.margins: -10
            onClicked: root.StackView.view.pop()
        }
    }

        Label {
            id: pageTitle
            text: "KARDEX " + inConversationWith
            textFormat: Text.AutoText
            fontSizeMode: Text.VerticalFit
            font.pixelSize: 50
            color: "lightgrey"
            anchors.centerIn: parent
            font.family: "Times New Roman"
            font.bold: true
            font.italic: true

        }

    }

    Item {
        y: 60
        width: 359
        height: 530

        Column {
            y: 0
            spacing: 5

            Button {
                text: "05"
                style: touchStyle1
            }
            Button {
                text: "12"
                style: touchStyle1
            }
            Button {
                text: "21"
                style: touchStyle1
            }
           }
        Column {
            x:105
        Button {
            anchors.margins: 20
            style: touchStyle2
            text: "24"
            onClicked: stackView.push (Qt.resolvedUrl("LocalstoragePage.qml"))
        }
        }
        Component {
            id: touchStyle1
            ButtonStyle {
                panel: Item {
                    implicitHeight: 100
                    implicitWidth: 100
                    BorderImage {
                        anchors.fill: parent
                        antialiasing: true
                        anchors.margins: control.pressed ? 0 : -2
                        source: control.pressed ? "../images/green_button_pressed.png" : "../images/green_button.png"
                        Text {
                            text: control.text
                            anchors.centerIn: parent
                            color: "white"
                            font.pixelSize: 23
                            renderType: Text.NativeRendering
                        }
                    }
                }
            }
        }
        Component {
            id: touchStyle2
            ButtonStyle {
                panel: Item {
                    implicitHeight: 100
                    implicitWidth: 100
                    BorderImage {
                        anchors.fill: parent
                        antialiasing: true
                        anchors.margins: control.pressed ? 0 : -2
                        source: control.pressed ? "../images/gold_button_pressed.png" : "../images/gold_button.png"
                        Text {
                            text: control.text
                            anchors.centerIn: parent
                            color: "white"
                            font.pixelSize: 23
                            renderType: Text.NativeRendering
                        }
                    }
                }
            }
        }
     }
}

images are in images folder and avatars names are LNx4.png,LPx4.png,GBx4.png, LTx4.png