Qt 虚拟键盘 [PyQt 5.8]- 找不到样式，无法调整虚拟键盘的大小

Question

我一直在尝试使用 Qt 虚拟键盘，它一直很顺利，直到...

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问题是：

1. 正在设置环境变量。 （有点检查）
2. QT_VIRTUALKEYBOARD_STYLE（未找到）。我已经从另一个 stackoverflow 帖子中创建了自己的样式，看起来不错，但没有找到。

警告：找不到样式 “.../INTERACT/interact-ii/tools/en_GB/customkb.qml” - 后备：“默认”

一些尝试：

1. 已将 customkeyboard.qml 单独文件放入我自己的项目中，并将变量设置为其路径。
2. 已将默认 Qt 文件夹中的整个文件夹“en_GB”放入我的项目中并进行修改。
3. 还用我的风格将变量设置为 Qt 文件夹中的原始路径。
4. 已下载 Qt 5.8/5.7/5.6 并对所有 qtvirtualkeyboard 执行相同操作。
5. 看到上述错误后（回退：“默认”），我尝试将我的 qml 项目从 qt 文件夹添加到 default.qml。 [.../Qt/5.8/Src/qtvirtualkeyboard/src/virtualkeyboard/content/styles/default]
6. 已使用 QTCreator 打开 qtvirtualkeyboard.so 文件并在更改我的 qml 文件后构建所有文件，以查看它是否会更改某些内容并且没有任何更改。

它们似乎都没有改变我的键盘尺寸和位置。

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这里是一个小例子的重要文件。

1 - 使用键盘的小例子。

import os
import sys

from PyQt5.QtCore import QProcessEnvironment
from PyQt5.QtWidgets import QApplication
from PyQt5.QtWidgets import QLineEdit
from PyQt5.QtWidgets import QMainWindow
from PyQt5.QtWidgets import QVBoxLayout
from PyQt5.QtWidgets import QWidget

os.environ["QT5DIR"] = "/home/epson/Qt/5.8/gcc_64"
os.environ["QT_QPA_PLATFORM_PLUGIN_PATH"] = "/home/epson/Qt/5.8/gcc_64/plugins/platforms"
os.environ["QT_PLUGIN_PATH"] = "/home/epson/Qt/5.8/gcc_64/plugins"
os.environ["QML_IMPORT_PATH"] = "/home/epson/Qt/5.8/gcc_64/qml"
os.environ["QML2_IMPORT_PATH"] = "/home/epson/Qt/5.8/gcc_64/qml"

os.environ["QT_VIRTUALKEYBOARD_LAYOUT_PATH"] = "/home/epson/INTERACT/interact-ii/tools/en_GB/customkb.qml"
os.environ["QT_VIRTUALKEYBOARD_STYLE"] = "/home/epson/Qt/5.8/Src/qtvirtualkeyboard/src/virtualkeyboard/content/styles"
os.environ["QT_IM_MODULE"] = "qtvirtualkeyboard"

for i in QProcessEnvironment.systemEnvironment().keys():
    print(i)

class MainWindow(QMainWindow):

    def __init__(self):
        super(MainWindow, self).__init__()
        self.line_edit = None


        self.init_ui()

    def init_ui(self):
        self.line_edit = QLineEdit()
        self.line_edit2 = QLineEdit()
        self.layout = QVBoxLayout()
        self.main_widget = QWidget()
        self.main_widget.setLayout(self.layout)
        self.layout.addWidget(self.line_edit)
        self.layout.addWidget(self.line_edit2)
        self.setCentralWidget(self.main_widget)


if __name__ == "__main__":
    app = QApplication(sys.argv)
    mw = MainWindow()
    mw.show()
    sys.exit(app.exec_())

2 - 我的 customkeyboard.qml

/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the Qt Virtual Keyboard module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:GPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 or (at your option) any later version
** approved by the KDE Free Qt Foundation. The licenses are as published by
** the Free Software Foundation and appearing in the file LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/

import QtQuick 2.0
import QtQuick.Window 2.2
import QtQuick.VirtualKeyboard 2.1
import "content"

Item {
    width: 1280
    height: 720

    Item {
        id: appContainer
        width: Screen.width < Screen.height ? parent.height : parent.width
        height: Screen.width < Screen.height ? parent.width : parent.height
        anchors.centerIn: parent
        rotation: Screen.width < Screen.height ? 90 : 0
        Basic {
            id: virtualKeyboard
            anchors.left: parent.left
            anchors.top: parent.top
            anchors.right: parent.right
            anchors.bottom: inputPanel.top
        }

        /*  Handwriting input panel for full screen handwriting input.

            This component is an optional add-on for the InputPanel component, that
            is, its use does not affect the operation of the InputPanel component,
            but it also can not be used as a standalone component.

            The handwriting input panel is positioned to cover the entire area of
            application. The panel itself is transparent, but once it is active the
            user can draw handwriting on it.
        */
        HandwritingInputPanel {
            z: 79
            id: handwritingInputPanel
            anchors.fill: parent
            inputPanel: inputPanel
            Rectangle {
                z: -1
                anchors.fill: parent
                color: "black"
                opacity: 0.10
            }
        }

        /*  Container area for the handwriting mode button.

            Handwriting mode button can be moved freely within the container area.
            In this example, a single click changes the handwriting mode and a
            double-click changes the availability of the full screen handwriting input.
        */
        Item {
            z: 89
            visible: handwritingInputPanel.enabled && Qt.inputMethod.visible
            anchors { left: parent.left; top: parent.top; right: parent.right; bottom: inputPanel.top; }
            HandwritingModeButton {
                id: handwritingModeButton
                anchors.top: parent.top
                anchors.right: parent.right
                anchors.margins: 10
                floating: true
                flipable: true
                width: 76
                height: width
                state: handwritingInputPanel.state
                onClicked: handwritingInputPanel.active = !handwritingInputPanel.active
                onDoubleClicked: handwritingInputPanel.available = !handwritingInputPanel.available
            }
        }

        /*  Keyboard input panel.

            The keyboard is anchored to the bottom of the application.
        */
        InputPanel {
            id: keyboard;
            y: screenHeight; // position the top of the keyboard to the bottom of the screen/display

            anchors.left: parent.left;
            anchors.right: parent.right;

            states: State {
                name: "visible";
                when: keyboard.active;
                PropertyChanges {
                    target: keyboard;
                    // position the top of the keyboard to the bottom of the text input field
                    y: textInput.height;
                }
            }
            transitions: Transition {
                from: ""; // default initial state
                to: "visible";
                reversible: true; // toggle visibility with reversible: true;
                ParallelAnimation {
                    NumberAnimation {
                        properties: "y";
                        duration: 250;
                        easing.type: Easing.InOutQuad;
                    }
                }
            }
        }
    }
}

问题：

我在设置 STYLE 和 LAYOUT 变量方面做错了吗？我应该真正设置哪一个，是 STYLE 还是 LAYOUT 变量会改变我键盘的大小和位置？我应该把 qml 文件放在哪里？我究竟做错了什么？看不出是什么问题！！

Obs：即使关注此post 也无法使其工作。一切都完全相同，但似乎缺少某些东西或我误解了某些东西。

Answer 1

我相信您混淆了样式的布局，这给您带来了一些问题。

布局

1. en_GB 目录中的 .qml 文件是 Qt 用于键盘布局的文件。
2. 要包含您的自定义布局，您必须将 QT_VIRTUALKEYBOARD_LAYOUT_PATH 变量指向您为自定义布局创建的目录（例如 QT_VIRTUALKEYBOARD_LAYOUT_PATH=/path/to/custom/keyboard-layout/mycustomlayout）。然后，要为英式英语添加自定义布局，您将在 /path/to/custom/keyboard-layout/mycustomlayout 中创建一个 en_GB 目录。在您的 en_GB 目录中，您至少应该有 main.qml。
3. 您已将文件命名为 customkeyboard.qml。为了让 Qt 正确定位、加载和处理您的自定义布局，您必须遵循默认布局的文件命名约定（即 main.qml、handwriting.qml、symbols.qml），如引用 here。李>

样式

对于自定义样式，您必须将自定义样式目录放在 $$[QT_INSTALL_QML]/QtQuick/VirtualKeyboard/Styles 中，如引用 here。显然，您的自定义 style.qml 文件位于您的自定义样式目录中。

希望这有助于为您澄清一些事情。