QML 基本问题 关于 Timer的

[tt2com]

我想坐一个按键长时间响应的动作，在c++中我用QTimer 来实现，但我需要获取QTimer 的运行时间，但好像QML 中的Timer好像无法获取已经运行的时间。

如何实现 onPressAndHold 的事件。
onPressAndHold 固定800ms，我希望能够实现时间可调整的，该如何处理

[Vegata]

我的想法是

1 首先设置一个 bool类型的属性 isLongHold
2 onPressed事件的时候Timer开始计时 当Timer triggered的时候将isLongHold设为true
3 onRelease事件时根据 isLongHold 的值判断是否进行长按操作

没找到onPressAndHold 改时间的方法....

[tt2com]

[Quote=引用 1 楼 的回复:]

我的想法是

1 首先设置一个 bool类型的属性 isLongHold
2 onPressed事件的时候Timer开始计时 当Timer triggered的时候将isLongHold设为true
3 onRelease事件时根据 isLongHold 的值判断是否进行长按操作

没找到onPressAndHold 改时间的方法....
[/Quote]
我现在就是这么做的，但事实是不行

[Vegata]

import QtQuick 1.1

Rectangle {
    width: 360
    height: 360

    property bool isLongHold:false
    Rectangle
    {
        anchors.centerIn: parent
        width: 60
        height: 60
        color: "lightblue"
        Timer
        {
            id:timer
            interval: 3000
            onTriggered: isLongHold = true
        }

        MouseArea {
            anchors.fill: parent
            onPressed: timer.start()
            onReleased:
            {
                timer.stop()
                if(isLongHold)
                {
                    console.log("long hold")
                }
                else
                {
                    console.log("not long hold")
                }
                isLongHold = false
            }
        }
    }
}

我试验了下 没问题 可以实现

[tt2com]

我郁闷了 为什么我的一值没法起来

[tt2com]

import QtQuick 1.0

Item {
    id:zone_detail
    width: 98
    height: 98
    property int m_state: 0
    property string content1: ""
    property string content2: ""
    property string content3: ""
    property bool m_dd: false;
    function set_state(state_){
        switch(state_){
        case 0:
            zone_detail.state = "";
            break;
        case 1:
            zone_detail.state = "state1";
            break;
        case 2:
            zone_detail.state = "state2";
            break;
        }
        return state_;
    }
    Timer{
        id: timer1
        interval: 300;
        onTriggered: {
            zone_detail.m_dd = ture;
            }
        }
    BorderImage {
        id: border_image1
        anchors.fill: parent
        source: ..

        Text {
            id: text1
            x: 0
            y: 23
            width: 98
            height: 21
            text: content1
            verticalAlignment: Text.AlignVCenter
            horizontalAlignment: Text.AlignHCenter
            font.pixelSize: 18
        }

        Text {
            id: text2
            x: 0
            y: 66
            width: 49
            color: "#ffffff"
            text: content3
            verticalAlignment: Text.AlignVCenter
            horizontalAlignment: Text.AlignHCenter
            font.pixelSize: 12
        }

        Text {
            id: text3
            x: 49
            y: 66
            width: 49
            color: "#ffffff"
            text: content2
            verticalAlignment: Text.AlignVCenter
            horizontalAlignment: Text.AlignHCenter
            font.pixelSize: 12
        }
    }

    MouseArea {
        id: mouse_area1
        anchors.fill: parent
        onPressed: timer1.start();
        onReleased: {
            timer1.stop();
            if(!m_dd){
                m_state=set_state(m_state);
            }
            else{
              m_state = set_state(0);
              m_dd = false;
            }
        }
        onPositionChanged:set_state(m_state);
    }
    states: [
        State {
            name: "state1";when: mouse_area1.pressed && m_state==0

            PropertyChanges {
                target: border_image1
                source: "../../qml_vrf/qml_vrf/Resources/image/group_all/group_back_select.png"
            }
        },
        State {
            name: "state2";

            PropertyChanges {
                target: border_image1
                source: ..
            }

            PropertyChanges {
                target: text1
                visible: false
            }

            PropertyChanges {
                target: text2
                visible: false
            }

            PropertyChanges {
                target: text3
                visible: false
            }
        },
        State {
            name: "state3";when: mouse_area1.pressed && m_state==1
            PropertyChanges {
                target: border_image1
                source: ..
            }

            PropertyChanges {
                target: text1
                visible: false
            }

            PropertyChanges {
                target: text2
                visible: false
            }

            PropertyChanges {
                target: text3
                visible: false
            }
        },
        State {
            name: "state4";
            PropertyChanges {
                target: border_image1
                source: ..
            }

            PropertyChanges {
                target: text1
                visible: false
            }

            PropertyChanges {
                target: text2
                visible: false
            }

            PropertyChanges {
                target: text3
                visible: false
            }
        },
        State {
            name: "state5";when: mouse_area1.pressed && m_state==2
            PropertyChanges {
                target: border_image1
                source: ..
            }

            PropertyChanges {
                target: text1
                visible: false
            }

            PropertyChanges {
                target: text2
                visible: false
            }

            PropertyChanges {
                target: text3
                visible: false
            }
        }
    ]
}

[tt2com]

哎 放了个2b错误 吧true 写成了 ture