The Qt Quick Layouts module provides QML types for arranging QML items in a user interface. These QML types work in conjunction with Qt Quick and Qt Quick Controls .
The QML types can be imported into your application using the following import statement in your .qml file.
import QtQuick.Layouts 1.12
| ColumnLayout | 等同 GridLayout，但只有一列 |
| GridLayout | 提供在栅格中动态排列项的方式 |
| Layout | 为把项压入 GridLayout、RowLayout 或 ColumnLayout 提供附加特性 |
| RowLayout | 等同 GridLayout，但只有一行 |
| StackLayout | 每次仅一项可见的项堆栈 |
