The error I find in my logcat when the Activity launches is:
E/AndroidRuntime( 296): java.lang.RuntimeException: Unable to start
activity Co mponentInfo{com.soft.tobi/com.soft.tobi.Game_main}:
java.lang.NullPointerExc eptionBut I don't see why I would get a NullPointerExc eption because the image ids are in my xml file On May 6, 3:46 pm, Justin Anderson <[email protected]> wrote: > Look at the LogCat output... That will tell you the cause of the problem. > > Thanks, > Justin Anderson > MagouyaWare Developerhttp://sites.google.com/site/magouyaware > > On Thu, May 5, 2011 at 8:51 PM, Tom <[email protected]> wrote: > > I am trying to set the size and position of an image (image2) on the > > screen so that it is in the same position and size relative to the > > background image (image1) it is on no matter the screen size. To do > > this, I try to alter the layout parameters of image2 in my `onCreate` > > method of my `Activity` class: > > > RelativeLayout rl = (RelativeLayout) > > findViewById(R.id.rlGen); > > RelativeLayout.LayoutParams params = new > > RelativeLayout.LayoutParams( > > (image1.getWidth()) / 4, > > (image1.getHeight()) / 4); > > params.leftMargin = (image1.getWidth()) / 2; > > params.topMargin = (image1.getHeight()) / 2; > > rl.addView(image2, params); > > > But when my app goes to this activity, I get an error that says the > > application has stopped unexpectedly. Then I have to force close the > > app. Why would this happen? Is there something I am missing? or is > > there a better way to do this? > > > -- > > You received this message because you are subscribed to the Google > > Groups "Android Developers" 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-developers?hl=en -- You received this message because you are subscribed to the Google Groups "Android Developers" 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-developers?hl=en
