Gesture Detector

In this tutorial, we will learn how to handle user click events using the GestureDetector widget. GestureDetector can detect various mouse events and provides callbacks to respond to these events. In the example, we use the onClick event to display a notification when the user clicks on the widget.

In the code example above, the GestureDetector is used to handle the click event. When the user clicks on the yellow box, an alert window containing the message “clicked” is displayed. This helps easily understand the basic usage of GestureDetector.

Additionally, GestureDetector supports various events such as onMouseDown, onMouseUp, onMouseMove, etc., allowing for the implementation of more complex interactions. You can define callback functions for each event type to execute specific actions.

Through this tutorial, learn the various ways to use GestureDetector and apply it in real applications.