I have like issu.
I though this issues case is not clear objects in panle.
I recommend you to clear object when you change panle other.
2012/10/09 0:47 "rajneeshg" <[email protected]>:
> I am have memory leak issues with LayoutPanels. I tested it with 2.5.0-
> rc2. See my example below. Little description. I created a vertical
> panel, added a button and Layout panel with 200 labels in this. Click
> of the button clears the vertical panel(not layout panel), creates
> the layout panel with 200 labels and adds it on the vertical panel.
> Every click causes the leak of memory. Changing Layout panel with
> VericalPanel resolved the leak. When changing LayoutPanel to
> VerticalPanel make sure to comment lines with method call
> setWidgetTopHeight.
>
>
>
> package layout.client;
>
> import java.util.*;
>
> import com.google.gwt.core.client.EntryPoint;
> import com.google.gwt.dom.client.Style.Unit;
> import com.google.gwt.event.dom.client.*;
> import com.google.gwt.user.client.ui.*;
>
> /**
> * Entry point classes define <code>onModuleLoad()</code>.
> */
> public class LayoutPaenlTest implements EntryPoint {
>
> private VerticalPanel appWidget = new VerticalPanel();
>
> private SimplePanel buttonWrapper = new SimplePanel();
>
> Button reset;
>
> public void onModuleLoad() {
> reset = new Button("Replace Labels", new ClickHandler() {
>
> public void onClick(ClickEvent event) {
> reset.setEnabled(false);
> appWidget.clear();
> appWidget.add(buttonWrapper);
> LayoutPanel layoutpanel = new
> LayoutPanel();
>
> VerticalPanel labelContainer = new
> VerticalPanel();
> String time = new Date().toString();
> for (int i = 0; i < 200; i++) {
> Label currentLabel = new
> Label("Testing " + i+ " "+time);
> labelContainer.add(currentLabel);
> }
> layoutpanel.add(labelContainer);
>
> layoutpanel.setWidgetLeftWidth(labelContainer, 0, Unit.PX, 300,
> Unit.PX);
>
> layoutpanel.setWidgetTopHeight(labelContainer, 45, Unit.PX, 4900,
> Unit.PX);
>
> layoutpanel.setWidth("300px");
> layoutpanel.setHeight("5000px");
>
> appWidget.add(layoutpanel);
>
> reset.setEnabled(true);
> }
>
> });
> buttonWrapper.add(reset);
> appWidget.add(buttonWrapper);
>
> LayoutPanel layoutpanel = new LayoutPanel();
>
> VerticalPanel labelContainer = new VerticalPanel();
>
> for (int i = 0; i < 200; i++) {
> Label currentLabel = new Label("Testing " + i);
> labelContainer.add(currentLabel);
> }
>
> layoutpanel.add(labelContainer);
> layoutpanel.setWidgetLeftWidth(labelContainer, 0, Unit.PX,
> 300,
> Unit.PX);
> layoutpanel.setWidgetTopHeight(labelContainer, 45,
> Unit.PX, 4900,
> Unit.PX);
>
> layoutpanel.setWidth("300px");
> layoutpanel.setHeight("5000px");
> appWidget.add(layoutpanel);
> appWidget.setWidth("320px");
> appWidget.setHeight("5100px");
> RootPanel.get("layouttest").add(appWidget);
> }
>
> }
>
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