[英]Adding TabButton dynamically to TabBar in QML
I am trying to add a tabButton to TabBar dynamically on pressing a button but i have spent a lot of time searching but i am not getting how to add, below is the code which i am working on:我试图在按下按钮时动态地将 tabButton 添加到TabBar ,但我花了很多时间搜索但我不知道如何添加,下面是我正在处理的代码:
MyTabButton.qml MyTabButton.qml
import QtQuick 2.4
import QtQuick.Controls 2.2
Item
{
property int BtnWidth:0
property int BtnHeight:0
property string BtnText: ""
property bool isChecked : false
TabButton
{
id:tabBtn
text:BtnText
width:BtnWidth
height:BtnHeight
}
}
MainForm.qml主窗体.qml
import QtQuick 2.4
import QtQuick.Controls 2.2
Rectangle
{
Button
{
id:button
width:100
height:100
anchors.top:parent.top
text:qStr("Add")
onClicked{
//How to add logic here to add tab in below tabBar.
}
}
TabBar
{
id:tabBar
anchors.top:button.bottom
width:500
height:500
}
}
Example: 例:
import QtQuick 2.7
import QtQuick.Controls 2.0
ApplicationWindow {
id: window
width: 360
height: 630
visible: true
header: TabBar {
id: tabBar
}
Component {
id: tabButton
TabButton { }
}
Button {
text: "Add"
anchors.centerIn: parent
onClicked: {
var tab = tabButton.createObject(tabBar, {text: "Tab " + tabBar.count})
tabBar.addItem(tab)
}
}
}
You need to have something like a Component
that is a TabButton
. 您需要具有一个类似于
TabButton
的Component
。 Your file MyTabButton.qml
won't result in a TabButton
, but instead an Item
containing a TabButton
, but with this, your TabBar
does not know what to do. 您的文件
MyTabButton.qml
不会产生TabButton
,而是会导致一个包含TabButton
的Item
,但是与此相关的是,您的TabBar
不知道要做什么。
So your file will need to have TabButton
as root element 因此,您的文件将需要具有
TabButton
作为根元素
//MyTabButton.qml //MyTabButton.qml
import QtQuick 2.4
import QtQuick.Controls 2.2
TabButton
{
id: tabBtn
// customize as you like
}
Then you create a Component of this in your file where you want to use it. 然后,在要使用它的文件中创建此组件。 (eg main.qml)
(例如main.qml)
import QtQuick 2.4
import QtQuick.Controls 2.0
ApplicationWindow {
width: 800
height: 600
visible: true
TabBar {
id: tabBar
width: 800
height: 50
}
// The component is like a factory for MyTabButtons now.
// Use myTabButton.createObject(parent, jsobject-with-property-assignments) to create instances.
Component {
id: myTabButton
MyTabButton {
/// EDIT ACCORDING TO YOUR COMMENTS ***
Connections {
target: tabBar
onCurrentIndexChanged: doSomething()
}
/// EDIT OVER
}
}
Button {
anchors.centerIn: parent
// Create a object out of the component, and add it to the container
onClicked: tabBar.addItem(myTabButton.createObject(tabBar /*, { object to set properties }*/))
}
}
Try it in Window
试试
Window
Row {
anchors.fill: parent
TabBar {
id: tabBar
currentIndex: 0
width: parent.width - addButton.width
TabButton { text: "TabButton" }
}
Component {
id: tabButton
TabButton { text: "TabButton" }
}
Button {
id: addButton
text: "+"
flat: true
onClicked: {
tabBar.addItem(tabButton.createObject(tabBar))
console.log("added:", tabBar.itemAt(tabBar.count - 1))
}
}
}
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