Qt Creator provides integrated visual editors for designing Qt Quick and widget-based applications in the Design mode. The integration includes project management and code completion.
You can use wizards to create Qt Quick projects containing boiler-plate code that you can edit in the Design mode.
Widgets and forms created with Qt Designer are integrated seamlessly with programmed code by using the Qt signals and slots mechanism that allows you to easily assign behavior to graphical elements. All properties set in Qt Designer can be changed dynamically within the code. Furthermore, features such as widget promotion and custom plugins allow you to use your own widgets with Qt Designer.
Apply the best practices to ensure that the UIs you create work efficiently on the intended platforms, such as mobile devices.