Android试图在eclipse中运行我的项目，结果是xml.out

Sometimes when I am working on a projects layout in Eclipse I hit the run button while the active thing on the screen is still the layout.xml file. This causes eclipse to try to run just the xml file instead of the actual android project. I know that when I do this I can fix it by just deleting the xml.out file that gets created and clean/build on my project. However I remember using Eclipse at some point in the past when it didn't do this, if I hit run while working with an xml it still ran the Android project, just as if I had clicked run while editing a java file. My question is does anyone know if there is some sort of setting I can modify that will change the behavior back to that so that I don't have to switch back and forth to a java file just to run while I am actually doing work on the layout.Sometimes when I am working on a projects layou