Maybe you should use an interface that defines a getButton() method. That would be more type-safe.
On Feb 2, 2011, at 8:24 AM, Aanjaneya Shukla wrote: > Okay, but if I have multiple Window object and I randomly load an object into > my frame. In this case I have access to only the Container object and if I > have to suppose disable a button in my window then I need the Button object. > And in this case I don't have location of bxml file, hence I don't think > BXMLSerializer can be used. > > Thanks > > ________________________________________ > From: Greg Brown [[email protected]] > Sent: Wednesday, February 02, 2011 20:53 > To: [email protected] > Subject: Re: getting object fron its container > > Actually, because the BXML ID value is mapped to Component#setName() via the > IDProperty annotation, you could also get the button in the example below via > getNamedComponent("Button1"). > > However, as Chris noted, getNamedComponent() is not recursive. If you want > access to all values declared with IDs in your BXML file, you should use > BXMLSerializer.getNamespace().get() or implement Bindable in your root > element. > > G > > On Feb 2, 2011, at 5:06 AM, Chris Bartlett wrote: > > The Container#getNamedComponent(String) method is defined here > http://svn.apache.org/repos/asf/pivot/trunk/wtk/src/org/apache/pivot/wtk/Container.java > > You can see that it only iterates over the direct child Components in the > Container and then checks for a matching name property. > It does *not* check to see if those Components are actually instances of > Container, and then recursively iterate over them. > > It appears that none of the standard Pivot Containers override this method at > look into child Containers, so you would need to roll your own method if you > need to do that. > > > Bear in mind that theContainer#getNamedComponent(String) method attempts to > match against Component#getName(). > BXMLSerializer sets the Component's name property to the same value as the > bxml:id as a convenience, but these are 2 separate values. > > The Component's name can be set explicity in BXML as follows. > <PushButton bxml:id="Button1" name="Foo" buttonData="%Button1”/> > or in java (including at runtime) with > myComponent.setName("Foo"); > > If you wanted to find this PushButton by name you would have to supply a > value of "Foo", and not "Button1" > > > It will often be more convenient to use the @BXML annotation to pick up > objects in your code. > The section titled 'The Bindable Interface' in the following tutorial > contains more info. > http://pivot.apache.org/tutorials/stock-tracker.ui.html > > Chris > > On 2 February 2011 17:43, Aanjaneya Shukla > <[email protected]<mailto:[email protected]>> wrote: > Hi, > I am having some issues using ‘getNamedComponent’ method. > > BXML file: > <PushButton bxml:id="Button1" buttonData="%Button1”/> > > Java file: > PushButton Button1 = (PushButton)window.getNamedComponent("Button1"); > > I want to get Button object but I have getting null value returned. > >
