Qml menu popup latency - qt

Question

When my mouse event happened，the menu can popup,but not immediately,it seems a little latency. this is my code, is anything wrong?
My Qt version is 5.15, my system is Windows 10.
import QtQuick 2.12
import QtQuick.Window 2.12
import QtQuick.Controls 2.12
import QtQuick.Controls 1.4
import QtQuick.Layouts 1.12
Window {
visible: true
width: 450
height: 350
title: qsTr("ListView")
property bool refreshFlag: false
Rectangle {
id: rightview
width: 60
height: 300
x: 100
color: "#EEEEEE"
MouseArea {
anchors.fill: parent
acceptedButtons: Qt.RightButton | Qt.LeftButton
onClicked: {
console.log(width)
if (mouse.button === Qt.RightButton)
contextMenus.popup()
}
Menu {
id: contextMenus
MenuItem { text: "open" }
MenuItem { text: "save " }
MenuItem { text: "else..." }
}
}
Text {
font.pointSize: 12
text: "content"
}
}
}
this is my screenshot

Answer 1

A couple of issues with your program snippet:
Don't mix QtQuick.Controls 1.x with QtQuick.Controls 2.x
Recommend you update all your references to versions to 2.15
Do not declare Menu inside MouseArea, it doesn't make sense
The MouseArea can be optimized to only accept the RightButton
Declare the Menu at the "top level"
Here's a cleanup of your code:
import QtQuick 2.15
import QtQuick.Controls 2.15
Page {
anchors.fill: parent
Rectangle {
x: 100
width: 60
height: 300
color: "#EEEEEE"
Text {
font.pointSize: 12
text: "content"
}
MouseArea {
anchors.fill: parent
acceptedButtons: Qt.RightButton
onClicked: contextMenus.popup()
}
}
Menu {
id: contextMenus
MenuItem { text: "open" }
MenuItem { text: "save " }
MenuItem { text: "else..." }
}
}
You can Try it Online!
There appears to be no performance issue when I run the above snippet using qmlonline. I don't think the code is an issue. I think we need to get an understanding of:
Your version of Qt
Your platform (i.e. OS, hardware, etc)