The Java code generator can quickly generate boilerplate code for selected UI elements defined in an activity's or fragment's layout file. It generates attribute declarations, findViewById() calls, and event handlers. Construct your layout file, ensuring that it contains all of the UI elements that you want to programmatically access from your Java Activity or Fragment subclass. Save your work. Right-click the Activity or Fragment subclass that presents and controls the layout (right-click either the editor window showing this subclass, or the subclass' filename in the Package Explorer) and select SourceGenerate Java Code Based on Layout. In order for this operation to work, your Activity or Fragment code must not have errors. As well, the xml file that defines your layout must be well-formed. The Generate Java Code Based on Layout dialog appears. Ensure that the Project and Target Class selections are correct. From the UI objects list, select those items for which code is to be generated. To avoid adding duplicate code, if the code generator finds an existing findViewById() statement for a given UI object, it does not include that UI object in the list. If at least one of the UI objects is normally used with a listener object, and you do not want listeners to be created for you, clear the Generate default listeners when possible option. Otherwise, leave this option selected so that listeners are generated for the appropriate UI objects. Click OK. Note that the OK button isn't enabled until you select at least one UI object from the list. Attribute declarations, findViewById() calls, and event handlers are generated, as appropriate, and added to the selected Activity or Fragment subclass.