This is my code:
new Button(shell,SWT.PUSH).addListener(SWT.Selection,new Listener() {
@Override
public void handleEvent(Event event) {
new Timer().schedule(new TimerTask() {
@Override
public void run() {
label.setText(String.valueOf(System.currentTimeMillis()-start[0]));
start[0] = System.currentTimeMillis();
}
},100);
}
});
than I got an error:
Exception in thread "Timer-0" org.eclipse.swt.SWTException: Invalid thread access
at org.eclipse.swt.SWT.error(SWT.java:4397)
at org.eclipse.swt.SWT.error(SWT.java:4312)
at org.eclipse.swt.SWT.error(SWT.java:4283)
at org.eclipse.swt.widgets.Widget.error(Widget.java:472)
at org.eclipse.swt.widgets.Widget.checkWidget(Widget.java:363)
at org.eclipse.swt.widgets.Label.setText(Label.java:386)
at Main$2$1.run(Main.java:51)
at java.util.TimerThread.mainLoop(Timer.java:555)
at java.util.TimerThread.run(Timer.java:505)
How to improve the code? ( except display.timerExec() )
Try using asyncExec (not tested)
new Button(shell,SWT.PUSH).addListener(SWT.Selection,new Listener() {
@Override
public void handleEvent(Event event) {
new Timer().schedule(new TimerTask() {
@Override
public void run() {
Display.getDefault().asyncExec(new Runnable() {
public void run() {
label.setText(String.valueOf(System.currentTimeMillis()-start[0]));
start[0] = System.currentTimeMillis();
}
}
}
},100);
}
});
Hope it helps
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