Small Talks/2008/September/Using the New Feature Of The Timeline Component

Author
Gu Wei Xing, Software developer in NanTong of JiangSu province, China.

Date
Sep 26, 2008

Version
Applicable to zk-timeline1.2_2.

Hide or show the message bubble. It’s very simple.

• Show the message bubble for a Bandinfo object.

  b1.setBubbleVisible(true);

• Hide the message bubble for a Bandinfo object.

		
  b1.setBubbleVisible(false);

• Catch the OccurEventSelectEvent.

After hide the message bubble the OccurEventSelectEvent would be sent back when user click the title of a OccurEvent in a band.So you can catch this event like the following codes. First,you should implement an EventListener interface.

  public  class OccurEventSelectListener implements EventListener {
	public boolean isAsap() {
		return true;
	}
	public void onEvent(Event event) throws UiException {
		OccurEventSelectEvent oese=(OccurEventSelectEvent)event;
		//TODO: edit the next code by yourself.
	System.out.println(oese.getOccurEvent().toString());
	}
  }

Second,new a OccurEventSelectListener and add this listener to the bandinfo object. That’a all.

  <zscript><![CDATA[
	b1.addEventListener("onOccurEventSelect", new OccurEventSelectListener());
	b2.addEventListener("onOccurEventSelect", new OccurEventSelectListener());
  ]]></zscript>

The example：

Pass center visible date in BandScrollEvent.

This feature contribute by hengsin at users.sourceforge.net.Now the BandScrollEvent contains a “center” property.It point the current center date position to where the band scroll .

• Implement an EventListener.

  public class BandScrollListener implements EventListener {
	  public boolean isAsap() {
		  // TODO Auto-generated method stub
		  return true;
	  }    
	  public void onEvent(Event event) {
		  // TODO Auto-generated method stub
		  BandScrollEvent e = (BandScrollEvent) event;
		  //TODO: edit the next code by yourself.
		  System.out.println("The center date is:"+e.getCenter());
	  }
  }

• Add a BandScrollListener to the band.

  b1.addEventListener("onBandScroll",new BandScrollListener());

Here is the Example :

Dowload

• Example file timeline4.zip

• timeline1.2_2 zk-Timeline-1.2_2.zip

Summary

Hope you enjoy this component. I look forward to your feedback.

Gu Wei Xing is a software developer in NanTong of JiangSu province, China. He loves Java software development and Flash programming. He is also the host developer of the timeline project for ZK.forge.

Copyright © Gu Wei Xing. This article is licensed under GNU Free Documentation License.