R is a class that is generated at compile-time. In particular, to get R.layout.main you need to create a file names main.xml in your res/layout folder and create the layout in xml format as described in the Dev Guide docs.
I've never used the emulator (I push my apps directly to my phone for debugging) so I can't help with that... Let me know if this helps, Justin ---------------------------------------------------------------------- There are only 10 types of people in the world... Those who know binary and those who don't. ---------------------------------------------------------------------- On Thu, Sep 3, 2009 at 9:49 AM, leeuwerik <[email protected]> wrote: > > I'm brand new to Android (although not to Eclipse and Java). > Yesterday I installed ADT within Eclipse (always latest versions) both > on Windows and XP. > Then I try creating HelloWorld by following the tutorial. > > When creatin the android project I get an error on the line > setContentView(R.layout.main) ==> R unknown. > > I tried ctr-shift-O ==> import android.R is added but the error > remains. > > Undaunted I follow the tuturial and edit to create a TextView instead > ==> application runs, i.e. I see a mobile terminal image with > 'ANDROID' written in the centre. On XP it's strange: after a seemingly > long time-out the text font changes and an icon (android) is added > after the text. > > Next I try editing the resource .xml files as suggested in the > tutorial in order to change the text. This also implies reintroducing > the line with setContentView(R.layout.main) in lieu of the TextView. > This time no error reported !!!! > > When inspecting main.xml, the new layout and text look OK. Yet when > running the application I keep getting the same mobile picture, i.e. > without the new text. It looks like the emulation doesn't work > properly. > I rebuilt the application from scratch and did another tutorial, with > the same negative result. > > I must say that I'm lost. > Can anyone help please ???? > > > > --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Android Beginners" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/android-beginners?hl=en -~----------~----~----~----~------~----~------~--~---
