Qt Quick Controls 2 provides QML types for creating user interfaces. These QML types work in conjunction with Qt Quick and Qt Quick Layouts .
Qt Quick Controls 2 QML types can be imported into your application using the following import statement in your .qml file:
import QtQuick.Controls 2.12
| AbstractButton | Abstract base type providing functionality common to buttons | 
| 动作 | 抽象用户界面动作 | 
| ActionGroup | 把动作分组在一起 | 
| ApplicationWindow | Styled top-level window with support for a header and footer | 
| BusyIndicator | Indicates background activity, for example, while content is being loaded | 
| Button | Push-button that can be clicked to perform a command or answer a question | 
| ButtonGroup | Mutually-exclusive group of checkable buttons | 
| CheckBox | Check button that can be toggled on or off | 
| CheckDelegate | Item delegate with a check indicator that can be toggled on or off | 
| ComboBox | Combined button and popup list for selecting options | 
| 容器 | Abstract base type providing functionality common to containers | 
| Control | Abstract base type providing functionality common to all controls | 
| DelayButton | Check button that triggers when held down long enough | 
| Dial | Circular dial that is rotated to set a value | 
| Dialog | Popup dialog with standard buttons and a title, used for short-term interaction with the user | 
| DialogButtonBox | A button box used in dialogs | 
| Drawer | Side panel that can be opened and closed using a swipe gesture | 
| Frame | Visual frame for a logical group of controls | 
| GroupBox | Visual frame and title for a logical group of controls | 
| ItemDelegate | Basic item delegate that can be used in various views and controls | 
| Label | Styled text label with inherited font | 
| Menu | Popup that can be used as a context menu or popup menu | 
| MenuBar | Provides a window menu bar | 
| MenuBarItem | Presents a drop-down menu within a MenuBar | 
| MenuItem | Presents an item within a Menu | 
| MenuSeparator | Separates a group of items in a menu from adjacent items | 
| Overlay | A window overlay for popups | 
| Page | Styled page control with support for a header and footer | 
| PageIndicator | Indicates the currently active page | 
| Pane | Provides a background matching with the application style and theme | 
| Popup | Base type of popup-like user interface controls | 
| ProgressBar | Indicates the progress of an operation | 
| RadioButton | Exclusive radio button that can be toggled on or off | 
| RadioDelegate | Exclusive item delegate with a radio indicator that can be toggled on or off | 
| RangeSlider | Used to select a range of values by sliding two handles along a track | 
| RoundButton | A push-button control with rounded corners that can be clicked by the user | 
| ScrollBar | Vertical or horizontal interactive scroll bar | 
| ScrollIndicator | Vertical or horizontal non-interactive scroll indicator | 
| ScrollView | 可卷动视图 | 
| Slider | Used to select a value by sliding a handle along a track | 
| SpinBox | Allows the user to select from a set of preset values | 
| StackView | Provides a stack-based navigation model | 
| SwipeDelegate | Swipable item delegate | 
| SwipeView | Enables the user to navigate pages by swiping sideways | 
| Switch | Button that can be toggled on or off | 
| SwitchDelegate | Item delegate with a switch indicator that can be toggled on or off | 
| TabBar | Allows the user to switch between different views or subtasks | 
| TabButton | Button with a look suitable for a TabBar | 
| TextArea | 多行文本输入区域 | 
| TextField | 单行文本输入字段 | 
| ToolBar | Container for context-sensitive controls | 
| ToolButton | Button with a look suitable for a ToolBar | 
| ToolSeparator | Separates a group of items in a toolbar from adjacent items | 
| ToolTip | Provides tool tips for any control | 
| Tumbler | Spinnable wheel of items that can be selected | 
For more information on the Qt Quick Controls 2 module, see the Qt Quick Controls 2 模块文档编制。