event
Drag event example
With this example we shall show you how to work with MouseListener
and MouseMotionListener
interfaces in order to handle and monitor mouse events an especially mouse drags. This is a very nice feature to use if your application has many graphical objects that the user needs to move around the screen very frequently. It’s is very user friendly to let the user drag the object to perform these kinds of actions.
Basically all you have to do in order to handle mouse drags and mouse moves is:
- Create a class that implements
MouseListener
andMouseMotionListener
interfaces. - Override
mouseClicked
to handle mouse clicks,mouseEntered
,mouseExited
methods to check whether your mouse has entered or exited a certain area,mousePressed
to monitor the mouse button clicks,mouseReleased
to check when the user releases a mouse button. - Override
mouseDragged
method in order to handle mouse drags. Userepaint()
method to repaint the object in its new position.
Let’s take a look at the code snippets that follow:
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This was an example on how to handle object dragging in Java.