gwt

问题 I have two dates - a start and an end. I'd like to format them so that if the months match, they collapse to something like "20-23 AUG" and still format correctly if they break over the end of the month, like "20 SEP - 1 OCT". Are there any libraries out there for accomplishing this, or would I have to hand code rules for displaying ranges of dates using individual DateFormats? 回答1: Here's a solution using JodaTime, the best library for dealing with dates in Java (last time I checked). The

问题 Is it possible to add DockLayoutPanel inside another panel other than the RootLayoutPanel? If so, how would you do it? I attempted to add it inside HTMLPanel, and only north of the DockLayoutPanel shows. Then I tried it inside LayoutPanel, it failed again. I thought it would have work for LayoutPanel because RootLayoutPanel is a subclass of LayoutPanel. Any answers welcome. Thanks, 回答1: DockLayoutPanel is a RequiresResize widget, so either you put it inside a ProvidesResize widget (any so

问题 I have a GWT application which is run with maven: mvn gwt:run However, all the GWT.log logs are not being showed what could be the problem? 回答1: In order for the logging to work you need to have the following: Logging module inherited in your module xml file: <inherits name="com.google.gwt.logging.Logging" /> Logging level set and handlers configured: <set-property name="gwt.logging.logLevel" value="FINE" /> <set-property name="gwt.logging.systemHandler" value="ENABLED" /> <set-property name=

问题 I am brand new to GWT and am trying to achieve the following: Here's the code that I've cooked up: public class MyWebApp implements EntryPoint { // The main container for everything the user sees (the "view") private LayoutPanel mainPanel; // Simple HTML for the header ("MyWebApp") and subsequent <hr/> private SafeHtml header; // The three links "Dashboard", "Monitors" and "Help Desk" private HorizontalPanel navMenu; // The empty content that gets populated when user clicks one of // the 3

问题 How can I get add an icon with text to a menu item in GWT? The following does not work: <ui:with field='res' type='my.package.MyResources' /> <g:MenuItem text="test"><g:Image resource="{res.myIcon}" /></g:MenuItem> Resulting error: Not allowed in an HTML context: <g:Image resource='{res.myIcon}'> public interface MyResources extends ClientBundle { @Source("myIcon.png") ImageResource myIcon(); } 回答1: The MenuItem allows only HTML or plain text as its content. So you cannot use an Image widget,

问题 How can I get add an icon with text to a menu item in GWT? The following does not work: <ui:with field='res' type='my.package.MyResources' /> <g:MenuItem text="test"><g:Image resource="{res.myIcon}" /></g:MenuItem> Resulting error: Not allowed in an HTML context: <g:Image resource='{res.myIcon}'> public interface MyResources extends ClientBundle { @Source("myIcon.png") ImageResource myIcon(); } 回答1: The MenuItem allows only HTML or plain text as its content. So you cannot use an Image widget,

问题 I tried to upload my test gwt app but I've just faced a quite strange error. Every time I try to upload app I get this: Unable to update app: Error posting to URL: https://appengine.google.com/api/appversion/create?app_id=gwttestapp001&version=1.0& 500 Internal Server Error Server Error (500) A server error has occurred. See the deployment console for more details Unable to update app: Error posting to URL: https://appengine.google.com/api/appversion/create?app_id=gwttestapp001&version=1.0&

问题 I tried to upload my test gwt app but I've just faced a quite strange error. Every time I try to upload app I get this: Unable to update app: Error posting to URL: https://appengine.google.com/api/appversion/create?app_id=gwttestapp001&version=1.0& 500 Internal Server Error Server Error (500) A server error has occurred. See the deployment console for more details Unable to update app: Error posting to URL: https://appengine.google.com/api/appversion/create?app_id=gwttestapp001&version=1.0&

问题 I am using gwt cellTable. In this cell table i have one column containing compositeCell. Now i want to add a tooltip for all cells in that composite cell. Any work around for this? 回答1: Here's an abstract tooltip column class that you can extend in place of the normal Column class: public abstract class MyToolTipColumn<T, C> extends Column<T, C> { interface Templates extends SafeHtmlTemplates { @Template("<div title=\"{0}\">") SafeHtml startToolTip(String toolTipText); @Template("</div>")

问题 i really doesnt understand for what the class AttachEvent or the addAttachHandler is. For what is this usefull? could somebody post an example for that? Thx a lot. 回答1: The AttachEvent informs you when a Widget is either attached or detached from the actual page. If something isn't attached, there is no way its elements can be visible or interacted with, so it can be beneficial to know when it isn't available for interaction. The main thing that GWT itself uses this knowledge for is for