qml TabBar的使用_qml tabbar 放左边

Window {
    visible: true
    width: 480
    height: 360
    //flags:  Qt.FramelessWindowHint
    title: qsTr("TabBar")
   //color: "#000"

    TabBar {
        id: bar
        width: parent.width
        TabButton {
            id : btn1
            text: qsTr("Home")
            //width: 100
            //height: parent.height

            background: Rectangle{
                implicitWidth: 100
                  implicitHeight: 40
                  opacity: enabled ? 1 : 0.3
                  color: btn1.down ? "#d0d0d0" : "#e0e0e0"
            }
        }
        TabButton {
            id : btn2
            text: qsTr("Discover")
            //width: 100
            //height: parent.height
            background:Rectangle {
                implicitWidth: 100
                          implicitHeight: 40
                          opacity: enabled ? 1 : 0.3
                          color: btn2.down ? "#d0d0d0" : "#e0e0e0"
            }
        }
        TabButton {
            id : btn3
            text: qsTr("Activity")
            //width: 100
            //height: parent.height
            background:Rectangle {
                implicitWidth: 100
                          implicitHeight: 40
                          opacity: enabled ? 1 : 0.3
                          color: btn3.down ? "#d0d0d0" : "#e0e0e0"
            }
        }
    }

    StackLayout {
        width: parent.width
        currentIndex: bar.currentIndex
        anchors.top: bar.bottom
        Item {
            id: homeTab
            Text {
                text: qsTr("homeTab")
            }
        }
        Item {
            id: discoverTab
            Text {
                text: qsTr("discoverTab")
            }
        }
        Item {
            id: activityTab
            Text {
                text: qsTr("activityTab")
            }
        }
    }

}
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