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I am having a problem with the gen/r.java file. When I create or edit files in resources such as layout /values/strings.xml e.t.c the r.java file does not update. I have followed a tutorial and it for some reason won't update. There are no errors in the xml file.
I have heard people say "use clean/build" e.t.c but this just removes the r.java file and I am unable to get it back after many attempts. This results in me having to redo the whole project again just to get the gen file back. Why is this happening?
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no, you can only right click on your project and select synch will appear all new resources.
Android R. java is an auto-generated file by aapt (Android Asset Packaging Tool) that contains resource IDs for all the resources of res/ directory. If you create any component in the activity_main. xml file, id for the corresponding component is automatically created in this file.
R. java is the generated file by ADT or Android studio. It will be located under app\build\generated\source\r directory.
What is the role of the R. java file in an Android application project? A. It contains all resource IDs allowing the developer to reference them from the code using integers.
Project -> Clean works for me. R.java is deleted & Auto generated.
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