His,
if anyone could share experience with achieving blinking behavior for
several items on a page?
in my case there is a table being shown whose rows should have
multiple blinking elements (labels and images). Each of the blinking
elements has -its own- timeout value defined to stop blinking.
The way I have achieved it now, is by creating a composite (see sample
code below) that takes an image/label and adds a timer to it.
I am afraid that that is not a right approach as the table is
constantly being updated to add/delete rows with new blinking
components. That would lead to multiple timers being instantiated and
started with .scheduleRepeating(XXX); method again and again without
page being reloaded (the page should stay open for a day and display
changing information).
Could anyone comment on my approach: is it memory-leak and performance
degradation prone? What would be a feasible alternative? maybe using
external library like prototype?
Many thanks,
denis
public class BlinkingCorner extends Composite {
private boolean visible;
private int blinkingTime = 5000;
private long timeBlinkingStarted;
public BlinkingCorner(final Image img) {
timeBlinkingStarted = System.currentTimeMillis();
new Timer() {
@Override
public void run() {
if (System.currentTimeMillis() <= timeBlinkingStarted
+ blinkingTime) {
img.setVisible(visible);
GWT.log("visible=" + visible, null);
visible = !visible;
} else {
GWT.log("cancel", null);
img.setVisible(false);
cancel();
}
}
}.scheduleRepeating(500);
initWidget(img);
}
}
--~--~---------~--~----~------------~-------~--~----~
You received this message because you are subscribed to the Google Groups
"Google Web Toolkit" group.
To post to this group, send email to [email protected]
To unsubscribe from this group, send email to
[email protected]
For more options, visit this group at
http://groups.google.com/group/Google-Web-Toolkit?hl=en
-~----------~----~----~----~------~----~------~--~---
