FileDialog in Qml not working in Release

问题

I am working on project with Qt Quick Control 2. When I try to run my software in debug mode FileDialog.qml opens perfectly but when I deploy it as release mode it doesn't work.

Here is my code:

import QtQuick 2.4 
import QtQuick.Window 2.2 
import QtQuick.Controls 1.3 
import QtQuick.Dialogs 1.0 

// File Dialog to browse 
FileDialog { 
    id: openDialog 
    title: "Please Select An Image" 
    folder: shortcuts.pictures 
    nameFilters: ["Image files (*.BMP)"] 
    modality: Qt.NonModal 
    selectExisting: true 

    /*
     * do my stuff
    */
}

回答1:

Here it is my Js function that calls FileBrowse.qml (file in parameters). I call this function in other view like this :

JsCommonCall.openFileDialog("frameFileBrowse.qml",2)


function openFileDialog(file,
                        parentCalled) {
    _component = Qt.createComponent(file);
    _popUp = _component.createObject(windowsMain,  {"x": offsetPopUpCreate,
                                                    "y": offsetPopUpCreate,
                                                    "parentCall":parentCalled});
    if(_popUp !== null)
        _popUp.open()
}

here it is my FileBrowse

import QtQuick 2.7
import QtQuick.Controls 2.0
import QtQuick.Dialogs 1.0

// File Dialog to browse
FileDialog {
    id: openDialog
    title: "Please Select An Image"
    folder: shortcuts.home
    nameFilters: ["Image files (*.BMP)"]
    selectFolder: true 
    // variables 
    property int parentCall; 

    onAccepted: {
        imgCurrentCam1.source = openDialog.fileUrl;
        openDialog.close()
    }


    onRejected: {
        openDialog.close()
    }
}

回答2:

This is working for me

FileDialog {
    id: fdExport
    title: qsTr("File name")
    folder: shortcuts.home
    selectFolder: true
    onAccepted: {

    }
}

and to run

    fdExport.open()

Please try to leave

modality: Qt.NonModal 

from your code.

回答3:

I don't know which is the problem but the code below is perfectly portable on Windows machines. Tested in Linux too.

import QtQuick 2.9
import QtQuick.Window 2.2
import QtQuick.Dialogs 1.0

Window {
    visible: true
    width: 640
    height: 480
    title: qsTr("Hello World")

    FileDialog {
        id: fdImport
        title: qsTr("File name")
        folder: shortcuts.home
        onAccepted: {
            textEdit.text= fdImport.fileUrls[0]
        }
    }


    Rectangle {
        id: rectangle
        color: "#ffffff"
        anchors.fill: parent

        Rectangle {
            id: rectangle1
            color: "#ffffff"
            anchors.right: parent.right
            anchors.rightMargin: 8
            anchors.left: parent.left
            anchors.leftMargin: 8
            anchors.bottom: rectangle2.top
            anchors.bottomMargin: 6
            anchors.top: parent.top
            anchors.topMargin: 8

            TextEdit {
                id: textEdit
                text: qsTr("Text Edit")
                anchors.fill: parent
                font.pixelSize: 12
            }
        }

        Rectangle {
            id: rectangle2
            y: 441
            width: 128
            height: 32
            color: "#ffffff"
            anchors.left: parent.left
            anchors.leftMargin: 8
            anchors.bottom: parent.bottom
            anchors.bottomMargin: 7

            MouseArea {
                id: mouseArea
                anchors.fill: parent
                onClicked: {
                    fdImport.open()
                }

                Text {
                    id: text1
                    text: qsTr("Click me!")
                    horizontalAlignment: Text.AlignHCenter
                    verticalAlignment: Text.AlignVCenter
                    anchors.fill: parent
                    font.pixelSize: 12
                }
            }
        }
    }
}

The qt.conf file

[Paths]
Plugins=plugins
Libraries=libs

Please remember to copy all the dll (release) in the executable folder, with the qml and plugins folders.

回答4:

One strange but possible reason for it is anti-virus: my FileDialog isn't opening either, and the entire QML application is hanging, while the AV is active.

来源：https://stackoverflow.com/questions/49178542/filedialog-in-qml-not-working-in-release