2 qmlscene是什么，有什么用

Reference

• Prototyping with qmlscene
• QML官方系列教程——First Steps with QML
• QML官方系列教程——QML Applications

qmlscene是什么

• Qt 5 includes qmlscene, a utility that loads and displays QML documents even before the application is complete.
• The qmlscene utility is meant to be used for testing your QML applications, and not as a launcher in a production environment. To launch a QML application in a production environment, develop a custom C++ application or bundle the QML file in a module.

使用qmlscene加载qml文件

• To load a .qml file, run the tool and select the file to be opened, or provide the file path on the command prompt:
  qmlscene myqmlfile.qml

• 假如我们有一个文件LXWQmlSceneTest.qml，内容如下：

import QtQuick 2.3

  Rectangle {
      id: simpleButton
      color: "grey"
      width: 150; height: 75

      Text {
          id: buttonLabel
          anchors.centerIn: parent
          text: "button label"
      }
  }

我们就可以直接这样查看结果：

# 我电脑上qmlscene的安装路径
cd /Users/gss/Qt5.6.0/5.6/clang_64/bin
./qmlscene /Users/gss/Documents/qttest/lxw_qml_tutorial/LXWQmlSceneTest.qml