Qt Quick Extras

The Qt Quick Extras module provides a specialized set of controls that can be used to build interfaces in Qt Quick.

The module was introduced in Qt 5.5.

Controls

Controls are typically items that are used to present or receive input from the user.

CircularGauge	A gauge that displays a value within a range along an arc
DelayButton	A checkable button that triggers an action when held in long enough
Dial	A circular dial that is rotated to set a value
Gauge	A straight gauge that displays a value within a range
Picture	An indicator that displays a colorized QPicture icon
PieMenu	A popup menu that displays several menu items along an arc
StatusIndicator	显示活动 (或不活动) 状态的指示器
ToggleButton	A push button that toggles between two states
Tumbler	A control that can have several spinnable wheels, each with items that can be selected
TumblerColumn	A column within a tumbler

The Qt Quick Extras module is available under commercial licenses from Qt 公司。此外，它在自由软件许可下也是可用的。从 Qt 5.4 起，这些自由软件许可是 GNU LGPL (次一般公共许可) 第 3 版，或 GNU GPL (一般公共许可) 第 2 版。见 Qt 许可进一步了解细节。