The mode selector allows you to quickly switch between tasks such as editing project and source files, designing application UIs, configuring how projects are built and executed, and debugging your applications. To change modes, click the icons, or use the corresponding keyboard shortcut .
To hide the mode selector and to save space on the display, select View > Mode Selector Style > Hidden . To only show icons on the mode selector, select the Icons Only style.
The following image displays an example application in Edit mode (1) and Design mode (2).
You can use Qt Creator in the following modes:
Certain actions in Qt Creator trigger a mode change. Clicking on Debug > Start Debugging > Start Debugging automatically switches to Debug 模式。