Recently I was studying SWT/jface. When I was doing something small, I needed to simulate mouse and keyboard events. I searched the internet and simulated these events in Java. There are two main methods:
I. Use the robot class robot in AWT
java.lang.Objectjava.awt.Robot
-
public class Robot
-
Extends object
This class is used to generate local system input events for automated testing, self-running demos, and other applications that require mouse and keyboard control. The main purpose of robot is to facilitate automatic testing on the Java platform. The main simulated functions in the class are as follows:
void |
keyPress(int keycode)
Press the given key. |
void |
keyRelease(int keycode)
Release the given key. |
void |
mouseMove(int x, int y)
Move the mouse pointer to the specified screen coordinate. |
void |
mousePress(int buttons)
Click one or more mouse buttons. |
void |
mouseRelease(int buttons)
Release one or more mouse buttons. |
void |
mouseWheel(int wheelAmt)
Rotate the scroll wheel with the scroll wheel. |
Ii. Use the mouse and keyboard events in SWT
There are two examples in SWT snippets to introduce the use of the two methods, as follows: (1) simulate mouse events
* UI automation (for testing tools) snippet: Post mouse events
Import org. Eclipse. SWT. *; public class snippet142 {public static void main (string [] ARGs ){
Final display = New Display ();
Final shell = new shell (Display );
Final button = new button (shell, SWT. None );
Button. setsize (100,100 );
Button. settext ("click ");
Shell. Pack ();
Shell. open ();
Button. addlistener (SWT. mousedown, new listener (){
Public void handleevent (event e ){
System. out. println ("mouse down (button:" + E. button + "X:" + E. X + "Y:" + E. Y + ")");
}
});
Final point Pt = display. Map (shell, null, 50, 50 );
New thread (){
Event event;
Public void run (){
Try {
Thread. Sleep (300 );
} Catch (interruptedexception e ){}
Event = new event ();
Event. type = SWT. mousemove;
Event. x = pt. X;
Event. Y = pt. Y;
Display. Post (event );
Try {
Thread. Sleep (300 );
} Catch (interruptedexception e ){}
Event. type = SWT. mousedown;
Event. Button = 1;
Display. Post (event );
Try {
Thread. Sleep (300 );
} Catch (interruptedexception e ){}
Event. type = SWT. mouseup;
Display. Post (event );
}
}. Start ();
While (! Shell. isdisposed ()){
If (! Display. readanddispatch () display. Sleep ();
}
Display. Dispose ();
}
}
(2) simulate Keyboard Events * UI automation (for testing tools) snippet: Post key events
Import org. Eclipse. SWT. *; public class snippet146 {public static void main (string [] ARGs ){
Final display = New Display ();
Final shell = new shell (Display );
Final text = new text (shell, SWT. Border );
Text. setsize (text. computesize (150, SWT. Default ));
Shell. Pack ();
Shell. open ();
New thread (){
Public void run (){
String string = "Love the method .";
For (INT I = 0; I <string. Length (); I ++ ){
Char CH = string. charat (I );
Boolean shift = character. isuppercase (CH );
Ch = character. tolowercase (CH );
If (shift ){
Event event = new event ();
Event. type = SWT. keydown;
Event. keycode = SWT. shift;
Display. Post (event );
}
Event event = new event ();
Event. type = SWT. keydown;
Event. Character = CH;
Display. Post (event );
Try {
Thread. Sleep (10 );
} Catch (interruptedexception e ){}
Event. type = SWT. keyup;
Display. Post (event );
Try {
Thread. Sleep (100 );
} Catch (interruptedexception e ){}
If (shift ){
Event = new event ();
Event. type = SWT. keyup;
Event. keycode = SWT. shift;
Display. Post (event );
}
}
}
}. Start ();
While (! Shell. isdisposed ()){
If (! Display. readanddispatch () display. Sleep ();
}
Display. Dispose ();
}
} Both methods declare an event first, and then set the type of the event to the corresponding SWT. keyup/keydown/mouseup/mousedown, and finally simulate the corresponding event through the post (event) method of the display class. NOTE: If multiple controls exist, you need to obtain the display attribute of the corresponding control and then post the event. For example, if there is a browser in a window, you need to use thisclass. browser. getdisplay (). Post (event ).
